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My phone doesn't work, the screen is black, and when i try to charge the phone there aren't sign of life.
to charge my phone I have to wait from 3 to 6 hours to fully discharge the battery, at this point I managed to access the Download Mode,
I tried to reinstall the operating system with odin, the process is successful but when the phone turns back on it does not go beyond the writing SAMSUNG GALAXY S7, I tried everything even to make a forced restart, I tried to access safe mode, I tried to access the recovery, I tried to install the TWRP recovery but nothing to do. My phone doesn't want to know about it, but I still hope that I can charge it (with its charging screen) even if after waiting 3/6 hours. Also, if it can be helpful, my phone had been suddenly restarting for some time, and all this has been happening for about a month, but suddenly it has not turned on again.
PLEASE HELP ME, I AM REALLY DESPERATE.
corvasce03 said:
My phone doesn't work, the screen is black, and when i try to charge the phone there aren't sign of life.
to charge my phone I have to wait from 3 to 6 hours to fully discharge the battery, at this point I managed to access the Download Mode,
I tried to reinstall the operating system with odin, the process is successful but when the phone turns back on it does not go beyond the writing SAMSUNG GALAXY S7, I tried everything even to make a forced restart, I tried to access safe mode, I tried to access the recovery, I tried to install the TWRP recovery but nothing to do. My phone doesn't want to know about it, but I still hope that I can charge it (with its charging screen) even if after waiting 3/6 hours. Also, if it can be helpful, my phone had been suddenly restarting for some time, and all this has been happening for about a month, but suddenly it has not turned on again.
PLEASE HELP ME, I AM REALLY DESPERATE.
Click to expand...
Click to collapse
What charger are you using ? Samsung fast charger or just a standard cheapie,
Pending the charger being used will be 1 of 3 things
Matty1993 said:
What charger are you using ? Samsung fast charger or just a standard cheapie,
Pending the charger being used will be 1 of 3 things
Click to expand...
Click to collapse
The charger is the original, now I managed to put it in charge, the recharging takes place but once I go to turn it on it locks in the start screen
corvasce03 said:
The charger is the original, now I managed to put it in charge, the recharging takes place but once I go to turn it on it locks in the start screen
Click to expand...
Click to collapse
Ok so adaptive charging current is ok as your using the samsung supplied charger,
Id say it just needs a flash then as it stays on bootloogo so wont be a dead emmc id say its just corrrupt firmware
Download your stock rom from sammobile.com its free to download, youll need to make an account before downloading but thats free too,
Once you make an account go to the firmware section,
Enter your model number as shown on the backing of your S7 at the bottom in small writing,
After select your country then select the latest firmware available for your region,
Scroll down you should see a box saying free download click it you might have to wait a few hours for download to complete on free servers but is worth it all firmwares from sammobile.com are guaranteed to be 100% stock genuine firmwares,
Once youve got that let me know and ill tell you how to flash it with odin to bring it back from the dead
Matty1993 said:
Ok so adaptive charging current is ok as your using the samsung supplied charger,
Id say it just needs a flash then as it stays on bootloogo so wont be a dead emmc id say its just corrrupt firmware
Download your stock rom from sammobile.com its free to download, youll need to make an account before downloading but thats free too,
Once you make an account go to the firmware section,
Enter your model number as shown on the backing of your S7 at the bottom in small writing,
After select your country then select the latest firmware available for your region,
Scroll down you should see a box saying free download click it you might have to wait a few hours for download to complete on free servers but is worth it all firmwares from sammobile.com are guaranteed to be 100% stock genuine firmwares,
Once youve got that let me know and ill tell you how to flash it with odin to bring it back from the dead
Click to expand...
Click to collapse
I installed the firmware with samfirm, and I think it takes it directly from sammobile, the only thing that changes is that the firmware downloads it faster. Also I have no problem at the time of installation, odin says "pass". The problem is when the firmware has to start, I also tried not to restart it and access the recovery to clear the cache but when I do it I get a blue screen with erasing written and then it crashes.
Now I managed to turn it on and I'm in download mode, I put it in charge and now I'm waiting.
In my opinion the problem is due to the battery, what do you think?
Been having problems a while now, they've been progressively getting worse. Seemed to happen after an update.
Basically the phone freezes and reboots. Can be anything, unlocking, playing games, opening internet browser, opening gmail. Just frustrating, the phone just freezes, then reboots and loads up. Progressively getting worse and just gets hotter and hotter which seems to throw it off more. With the exception of a Software problem from the update (Damaged O/S and/or Bootloader), I'm starting to think the phone may be damaged. I've dropped it a fair share of times, but it's in a case :cyclops: so shouldn't be too bad
What I've done so far
- Cleared cache via Recovery Mode, this temporarily fixes it, the phone boots up again normally, but randomly freezes and reboots again
- Booted phone in safe mode - same problems
- Factory Restore --> Phone restores, but even when installing the apps again in goes through 3/4 reboots
I've enabled Dev Options and USB Debugging (and also OEM Unlock). If I try flashing with ODIN I just get a SW Check Revision failed message.
When the phone gets stuck in it's boot, it just displays the initial "Samsung Galaxy S7 Android" screen and nothing else, the occasional Samsung loading screen, but that sometimes freezes too. The times when I can get into the recovery mode, I've looked at the last log files, and there's sometimes errors relating to /mnt and a couple of directories, but I don't know enough about the O/S to troubleshoot and sometimes it fails to get into Manual Mode, I'll see if I can get photos of the last log file. The reboot reason is UNKNOWN
I've installed ADB, when the phone is loaded up into Windows, and I use adb devices it shows up. When I go into download mode, it says "List of attached devices" and then shows nothing. So I'm assuming it's a different issue, otherwise it wouldn't work in windows either
Bit stumped now. The phone isn't rooted, I'm not bothered about losing data, since I backed it up the first time I factory restored, so there's nothing valuable on there. I'm just getting tired of factory restoring it, since I don't think that's the problem. I'm thinking either the Factory Restore image is damaged or the phone is.
Any suggestions would be appreciated.
Phone is UK Based on Giff Gaff network. These are the files I'm trying to use to flash it
The option isn't ticked in ODIN (3.14.4) to Wipe Partition either
AP_G930FXXS4ESAE_CL14843133_QB21796491_REV00_user_low_ship_meta.tar
BL_G930FXXS4ESAE_CL14843133_QB21796491_REV00_user_low_ship.tar
CP_G930FXXU4ESAE_CL987828_QB11799217_SIGNED.tar
HOME_CSC_OXA_G930FOXA4ERKF_CL14843133_QB21796491_REV00_user_low_ship.tar
I read somewhere if I use this file it wipes the data. So haven't tried this
CSC_OXA_G930FOXA4ERKF_CL14843133_QB21796491_REV00_user_low_ship.tar
GrabAndSmash said:
Been having problems a while now, they've been progressively getting worse. Seemed to happen after an update.
Basically the phone freezes and reboots. Can be anything, unlocking, playing games, opening internet browser, opening gmail. Just frustrating, the phone just freezes, then reboots and loads up. Progressively getting worse and just gets hotter and hotter which seems to throw it off more. With the exception of a Software problem from the update (Damaged O/S and/or Bootloader), I'm starting to think the phone may be damaged. I've dropped it a fair share of times, but it's in a case :cyclops: so shouldn't be too bad
What I've done so far
- Cleared cache via Recovery Mode, this temporarily fixes it, the phone boots up again normally, but randomly freezes and reboots again
- Booted phone in safe mode - same problems
- Factory Restore --> Phone restores, but even when installing the apps again in goes through 3/4 reboots
I've enabled Dev Options and USB Debugging (and also OEM Unlock). If I try flashing with ODIN I just get a SW Check Revision failed message.
When the phone gets stuck in it's boot, it just displays the initial "Samsung Galaxy S7 Android" screen and nothing else, the occasional Samsung loading screen, but that sometimes freezes too. The times when I can get into the recovery mode, I've looked at the last log files, and there's sometimes errors relating to /mnt and a couple of directories, but I don't know enough about the O/S to troubleshoot and sometimes it fails to get into Manual Mode, I'll see if I can get photos of the last log file. The reboot reason is UNKNOWN
I've installed ADB, when the phone is loaded up into Windows, and I use adb devices it shows up. When I go into download mode, it says "List of attached devices" and then shows nothing. So I'm assuming it's a different issue, otherwise it wouldn't work in windows either
Bit stumped now. The phone isn't rooted, I'm not bothered about losing data, since I backed it up the first time I factory restored, so there's nothing valuable on there. I'm just getting tired of factory restoring it, since I don't think that's the problem. I'm thinking either the Factory Restore image is damaged or the phone is.
Any suggestions would be appreciated.
Phone is UK Based on Giff Gaff network. These are the files I'm trying to use to flash it
The option isn't ticked in ODIN (3.14.4) to Wipe Partition either
AP_G930FXXS4ESAE_CL14843133_QB21796491_REV00_user_low_ship_meta.tar
BL_G930FXXS4ESAE_CL14843133_QB21796491_REV00_user_low_ship.tar
CP_G930FXXU4ESAE_CL987828_QB11799217_SIGNED.tar
HOME_CSC_OXA_G930FOXA4ERKF_CL14843133_QB21796491_REV00_user_low_ship.tar
I read somewhere if I use this file it wipes the data. So haven't tried this
CSC_OXA_G930FOXA4ERKF_CL14843133_QB21796491_REV00_user_low_ship.tar
Click to expand...
Click to collapse
Hello the SW Check error means the firmware your trying to flash is older than the firmware already on device. You can only flash the same or up, never down.
The firmware you've posted is quite old. The unbranded original for United Kingdom you need is BTU. I linked it off Sammobile but if you know how to use Sam Firm tool you can get it much faster direct from Samsung.
If problems persist after flashing this, then yes it's a hardware problem.
https://www.sammobile.com/samsung/galaxy-s7/firmware/SM-G930F/BTU/download/G930FXXS8ETC1/327922
cooltt said:
Hello the SW Check error means the firmware your trying to flash is older than the firmware already on device. You can only flash the same or up, never down.
The firmware you've posted is quite old. The unbranded original for United Kingdom you need is BTU. I linked it off Sammobile but if you know how to use Sam Firm tool you can get it much faster direct from Samsung.
If problems persist after flashing this, then yes it's a hardware problem.
https://www.sammobile.com/samsung/galaxy-s7/firmware/SM-G930F/BTU/download/G930FXXS8ETC1/327922
Click to expand...
Click to collapse
Thanks,
I've got the SamFirm download tool because I was irritated waiting for the download, I'll try downloading and flashing it.
Should I flash the lot, or just one specific thing?
Also, I used Sam Firm to download the firmware for the phone but using the Auto Method.
What is the "Version" I need to enter based on SamFirm, is it listed somewhere, or is it the phone itself? G930FXX8ETC1 ?
GrabAndSmash said:
Also, I used Sam Firm to download the firmware for the phone but using the Auto Method.
What is the "Version" I need to enter based on SamFirm, is it listed somewhere, or is it the phone itself? G930FXX8ETC1 ?
Click to expand...
Click to collapse
You don't need to specify a version just put in SM-G930F, then BTU in region. It will automatically find the correct firmware for download.
Download, let it do its checks. A zip file with 5 files inside, 2xCSC, only one goes in Odin. CSC_home will keep files and settings on device but can often cause problems. I alsway use just CSC for a clean install. Obviously put the other files where they need to go too.
Sorry yes, flash all files, you'll have a clean new phone.
First boot can take about 5-10 mins, and the updating, erasing screens are normal.
cooltt said:
You don't need to specify a version just put in SM-G930F, then BTU in region. It will automatically find the correct firmware for download.
Download, let it do its checks. A zip file with 5 files inside, 2xCSC, only one goes in Odin. CSC_home will keep files and settings on device but can often cause problems. I alsway use just CSC for a clean install. Obviously put the other files where they need to go too.
Click to expand...
Click to collapse
Thank you, I managed to figure it out, I'm sure it's what I did last time, not sure if it just picked up the wrong version somewhere. IT seems to match the info in your post anyway.
I don't give a toss about the data since I'm over writing it all anyway. Do I still ignore the option to wipe the partition in ODIN, or should that be included to?
GrabAndSmash said:
Thank you, I managed to figure it out, I'm sure it's what I did last time, not sure if it just picked up the wrong version somewhere. IT seems to match the info in your post anyway.
I don't give a toss about the data since I'm over writing it all anyway. Do I still ignore the option to wipe the partition in ODIN, or should that be included to?
Click to expand...
Click to collapse
Leave the default options already ticked in Odin. You don't need to change anything there.
cooltt said:
Leave the default options already ticked in Odin. You don't need to change anything there.
Click to expand...
Click to collapse
Thanks,
Just finished flashing the image now, so going about the restore process to see if it's fixed it or not.
(still think it's buggered though, my phone froze/rebooted even when doing android config)
If needed I'll just keep using it in a semi-working state until I buy a new one and put up with it
EDIT - Just froze / rebooted configuring the main O/S after connecting to google account. New phone time by looks of it
Only other possible thing I can think of is the battery. There were alarms in the log file and the phone does reboot more when it gets hot. Given the phone is 4 years old now, I wonder if the battery is damaged and the phone is having a hissy fit
GrabAndSmash said:
Thanks,
Just finished flashing the image now, so going about the restore process to see if it's fixed it or not.
(still think it's buggered though, my phone froze/rebooted even when doing android config)
If needed I'll just keep using it in a semi-working state until I buy a new one and put up with it
EDIT - Just froze / rebooted configuring the main O/S after connecting to google account. New phone time by looks of it
Click to expand...
Click to collapse
Yeah look like battery overheating making it reboot
cooltt said:
Yeah look like battery overheating making it reboot
Click to expand...
Click to collapse
I'll give it a try for now, I've got the correct files for flashing it at least this time thanks, I''ll try replacing the battery in the future, and if I find out it fixes the problems I'll update the post. Or if I figure out what's causing it
hi,
this is a guide for real helpless people, that got a V20 H918 T-Mobile out of the box and have no idea
what to do, to get TWRP and root. and since on this phone its a REAL hard odyssee if youre not a pro,
and you dont want to spend days and weeks to pick up countless small puzzlepieces to finally get all together up and running, i decided to write this guide. im no pro myself, but with countless hours of reading and try and error, misery, headaches and brainpain, i managed to get this thing running all right with working downloadmode,
newest TWRP-version and 20H oreo 8.0
so far, everything seems working good. ill play around with this version and if i encounter some crap, i will edit this guide later. sadly most "newbie-guides" here, are from pros for advanced users with decent knowledge. so when u start from zero, you dont understand half of what is written. thats why i will keep this guide as simple as possible, with some side explanations. its a lot to read and a lot to do, but this way works!
what we have before starting:
a V20 H918 t-mobile 20H oreo 8.0 with bootloader locked. simply a crippled standard phone.
what we will have after this guide:
a V20 H918 t-mobile 20H oreo 8.0 rooted, with unlocked bootloader, working downloadmode,
and newest TWRP-version.
with twrp u can backup your whole system "as it is", means u fukk up your phone, simply go to twrp-recovery, restore your backup and you have your phone up and running 100% as before all went down the drain. simply and easy. just like a new installation of win10, but in 5 minutes. u can flash custom roms, kernels etc., install all kind of stuff, no need to pay for apps anymore, get rid of obnoxious bloatware, just 100% freedom and the full potential with the V20 (which is the last phone of its kind with exchangable battery, which is why i got myself 3pcs of it )
sidenote: get yourself some extra protection foils so u can change from time to time.
also get yourself 1 or 2 10000mah powerbatterys from aliexpress (perfine) with protective rubbercase, of course, they dont have the printed-on mah, but at least a considerable amount, so that your phone will last at least 3-6 days. my V10 lastet 11 days normal usage with zerolemon powerbattery. unfortunately, these retards refuse to send to europe, and as far as i know, theyre not producing for LG phones anymore, so aliexpress/perfine is whats left.
the rubbercase gives the phone a superior protection, adds a serious amount of weight and will stick in your hand like glue. it is by far less likely to drop out of your hand like these glass-phones for imbeciles. and if it drops, the rubbercase grants excellent protection. my V10 dropped countless times, still working perfect.
but lets get to the guide now.
at first, we will unlock the bootloader. without it, you wont be able to do anything.
unfortunately, LG produces great phones (with great audio!) but terrorizes the users with their strict anti-root attitude. it seems it gets harder everytime to root and unlock the bootloader. i remember back in the days old samsung devices, had been rooted in no time. this one here cost me about 2 weeks.
on this phone, u simply cant hook it up to the pc, and unlock the bootloader with adb. it will be recognized by the pc, but as soon as u enter fastboot, nothing will happen, no command works.
the solution is a FWUL (forget windows use linux) usb-bootstick, with that u boot your
pc into a custom linux (i think) only here u have full access to your phone via fastboot and can unlock the bootloader in no time. it will not work on win10 !
- first, get rufus, a win10 tool, with that u can create boot-usb-sticks.
https://rufus.akeo.ie/
- then get the linux FWUL image (only 15GB version is still up)
https://androidfilehost.com/?w=files&flid=214529
- unzip the linux image to your c drive or your desktop.
- start rufus and select your usb-stick (it should be 30gb+ in size)
be carefull not to chose any other drive or stick (it will get erased completely), better double check.
- select the image you just unziped. (i use 7zip for unzipping)
- leave all other options as they are, press start. when dialog-box pops up, chose DD-mode !
- now waste some time, as it takes a long time to create the bootstick (in my case about 30min)
- when the stick is ready, in my case it couldnt be recognized anymore in win10, its just a raw-drive, that cant be
opened. thats allright. dont worry
- now close down all applications running and insert the created bootstick. (at this time u might consider using a
separate laptop, so you can follow this guide here at pc and use the laptop with linux running, thats what i did)
restart your pc, hit F2 or F8 oder DEL or whatever to enter bios.
select the created stick as bootpriority nr1. so that the system will use this stick as
the first bootmedium to boot from.
- u get to a screen with 9 bootoptions to chose from. chose the first one. it should now boot into linux.
when password request pops up, enter: linux
- u reach the "desktop"
connect your LG V20 H918 20H via usb-c to the pc, which has linux running, make sure that
developer options are unlocked, OEM-unlock and USB-debugging is enabled and u chose picture transfer protocol
(PTP) as transfer-protocol (also in developer options). if PTP doesnt work, try media transfer protocol.
watch your V20, at some point it will ask for confirmation of connection , click OK.
in linux, click on the up-arrow in the most downleft corner and chose "terminal emulator", which is
a pendant to windows shell/command-line.
- here you can execute the adb commands.
first, check if your V20 has been recognized by your pc with linux running.
type: adb devices
it should appear a message like:
* daemon started successfully *
LGH9182bfblablabla device
that means, that your V20 has been recognized correctly. now you can reboot it in fastboot mode.
type: adb reboot bootloader
your V20 screen goes black and seconds after, it restarts in bootloader mode ready for unlocking.
you might get a red warning that your warranty is void if bootloader is unlocked. cool.
type: fastboot oem unlock
wait for response, your bootloader is now unlocked.
u can check by typing: fastboot getvar unlocked
it should say: yes.
the bootloader is now unlocked.
now we will replace the standard recovery with twrp on the phone.
this step will be a little confusing and complicate, just follow the steps, and it will work.
since we cant flash twrp with adb, we have to use the linux bootstick again.
but before, we have to downgrade the 20H version to 10P, bcuz the next stepp will not work with 20H !
so you get the following:
DOWNLOAD H91810P KDZ FILE
https://androidfilehost.com/?w=files&flid=282709
after that, download LGUP (the LG tool for downgrading from 20H to 10P)
and uppercut (dont know what uppercut is for, i just used it instead of running LGUP directly and it worked. its supposed to recognize the phone/driver automatically)
http://downloads.codefi.re/autoprime...sh_Tools/LGUP/
and download the recent LG-usb drivers.
http://tool.cdn.gdms.lge.com/dn/down...=UW00120120425
install LGUP, uppercut and usb-drivers.
connect ur phone to pc in download mode.
turn of phone, press and hold vol.UP button and connect usb cable, small message appears, phone is now in download-mode and waiting.
now run uppercut and hope, that ur phone will be recognized. if not, think about, what kind of restrictions u did to ur system, like OnO-shutup or xpantispy (both great programs to keep win10 from calling home to scum gates) or whatever. in my case, it ONLY worked, after i reset the OnOshutup settings to recommended. so the phone get recognized correctly in LGUP (if not, try laptop or different pc), select upgrade and select the downloaded 10p KDZ file. press start or go, and wait until the procedure is finished.
now your phone is downgraded to 10p.
now we go back to linux, we connect the phone in downloadmode with the pc/laptop where linux is running,
(turn phone off, hold volUP, connect usb-c-cable with linux-pc/laptop, phone will start in download-mode.)
make sure, your laptop/pc has internetaccess.
on the linux-desktop, click on the LG folder, inside, click on LGLAF runningnaked.
a terminal-window opens.
type: git pull
type: git checkout h918-miscwrte
type: ./step1.sh
now we have flashed twrp onto downloadmode. why? i dont know, thats the way it worked for me.
we dont want twrp onto downloadmode, since twrp is a recovery. so the next step is, to flash the newest twrp version for H918 to recovery. at first, we will gather all neccessary downloads, after that, we will flash them one by one. that way, you dont have to get your micro-sd card out of your phone again and again. we put all together on the card, put the card in your phone and we are almost done. for now, have your micro-sdcard connected
with your pc and download the following:
twrp-3.4.0-1-h918.img
from
https://dl.twrp.me/h918/twrp-3.4.0-1-h918.img.html
and put this .img file on micro-sd card.
then download (and put on sd-card):
MAGISK ZIP DOWNLOAD (for root)
https://github.com/topjohnwu/Magisk/...gisk-v16.0.zip
then download original 20H firmware(and put on sd-card)
H918 20H
https://androidfilehost.com/?fid=11410963190603864639
you remember, we have now twrp on downloadmode
for restoring download-mode, download (keep on desktop or c):
H91820h_00_1115.kdz
https://lg-firmwares.com/downloads-file/17076/H91820h_00_1115
then download the firmware extractor:
https://forum.xda-developers.com/attachment.php?attachmentid=3975633&d=1482337024
ok, lets see what we have now:
we have the phone bootloader unlocked and twrp on downloadmode. we can access twrp when we start the phone in downloadmode (hold volUP, and connect usbcable, phone will start now in twrp.)
we dont want twrp on downloadmode, we want twrp as recovery. and we want to restore the original downloadmode. for that we do the following:
unfortunately, the neccessary file for flashing orignal downloadmode is not online anymore, so we have to extract it from the 20H firmware with the firmware extractor (thanks to logical gamer for his guide)
https://forum.xda-developers.com/v20/how-to/guide-h918-restore-laf-partition-t3804728
Extract WindowsLGFirmwareExtract vx.x.x.x. to your desktop, and open it up (preferably in it's own folder).
u might have to install framework 3.5 for it to run.
Select Open across from KDZ/TOT file, and browse to your KDZ (H91820h_00_1115.kdz)
you download previously and double click.
After it loads the kdz check H91820h00.dz, and click Extract KDZ.
Close and re open the program this time Click open across from DZ File in the folder where you placed WindowsLGFirmwareExtract you should see a file called H91820h00.dz Double click to open it.
Check laf_6.bin then click Extract DZ.
put this laf_6.bin on your micro-sdcard. thats your original downloadmode we will flash now.
ok, now we have our micro-sdcard with twrp, magisk, laf_6.bin and H91820h.zip.
put this mirco-sdcard in your phone. start the phone in downloadmode.
it will start in an older twrp-version. in twrp, go to install and select install img
select the twrp 3.4.0.1. img and on the following screen select "recovery"
swipe
this will flash the 3.4.0.1 version of twrp onto recovery.
then go to reboot into recovery. it will now boot into the newly flashed recovery.
then go to wipe, advanced, and select everything EXCEPT micro-sdcard!
this will totally wipe your phone (except twrp), so u can flash the 20H firmware onto a clean phone.
then, go to install, select H91820h.zip. this will flash your original oreo 8.0 firmware.
after that, go to reboot into recovery.
go to install, select magisk. install.
this will root your phone.
after that, reboot into recovery, go to install, select install img, select the laf_6.bin, and select "download"
now the original downloadmode has been restored.
now you can reboot into system, your phone will start as on day1, with new twrp on recovery and root.
i did a complete backup in twrp, so i can get back to a day0 clean install whenever needed. i will do a second backup with twrp with all the stuff installed and working ok and place this on my sd-card. so when things go bad, i always can go back to this state in no time.
congrats, your done. and me too . gonna get a cold one now.
hope this guide will help someone. in case, just drop a like/thanks/or just a short note.
its a long guide, and im no pro, if i made some mistake pls. tell here and i will correct.
thx to all the pro-guys for helping the helpless.
Hi
Im on v20 H918 firmware 10p with bootloader unlocked.
I tried with dirty cow but not works with lafsploit i have a Problem with rufus for create a bootable Linux.
Pendrive is 32 GB i followed your setting but my PC boot only in windows 7.
I succesfully unlocked a h990ds with dirty santa but for this model is not supported.
Can you help me
hi
i tried with dirtycow also, didnt work.
thats why i eventually came to the method i described.
teling by your short description, your next step would be to create a bootable linux-usb-stick, and to find a pc where it will boot correctly. the stick didnt boot on my main pc ( i dont know why, it just canceled with an error),
thats why i had to use the laptop where it worked.
Thanks for the guide man! Very funny and fun to read. I can't wait to turn mine into a 4-day brick like yours. #lastphonewithbatteryrevolution
Sadly I got the dreaded encrypted error at the end though when booting. Everything else worked fine.
After the encrypted error though I formatted and flashed LineageOS 17.1 and then magisk and still keep getting error 1. Even tried Lineage recovery and still same. I think maybe a problem with Magisk 16 itself.
Anyway it works fine just no root.
Edit: Had to flash Magisk 21 and it worked
Thanks for this tutorial. I was able to get my V20 rooted with minimal trouble. The only major trouble was finding a computer that will fully boot into Linux and the only minor issue was locating the UPPERCUT but I was able to find it. Link below.
It's probably worth mentioning that I had to rename laf_6.bin to laf_6.img in order to flash it in TWRP. Also, at the time of writing, the latest version of Magisk is 22.0 but I used Magisk v21.4 instead because it had a zip file (Magisk-v21.4.zip) available for download so that I can flash it via TWRP. Link below.
UPPERCUT link: UPPERCUT: Add Any LG Device to LGUP for TOT/KDZ Flashing (G4|G5|G6|V10|V20|MORE???) | XDA Developers Forums (xda-developers.com)
MAGISK link: Releases · topjohnwu/Magisk · GitHub
cool, glad this guide helped at least a little bit. my v20 still works great, no issues so far. as a side phone for unwanted persons, i still use my v10 with powerakku and rubbercase "brickstyle" every time i hold a regular phone from other people, it feels weird since these phones weigh like nothing, and i have to focus not to slip it out of my hand. i love my bricks
and by now, about 4 month later, reading this whole guide, to me its still strange and hard to follow. there is no way to get through this without reading everything possible about it and become familiar with all the technical terms.
I have a h918 with an unlocked bootloader and it's downgraded to 10p. The shell script fails everytime to a hash check. I've run it 4 separate times with the hashes being the same every time. So it looks like the file has been updated but the hash hasn't.
I'm coming late to the game and it seems most of the guides are out of date. I'd appreciate any help I can get.
Update: It works fine. This is by far the easiest guide to follow that I've found. Many thanks! I did have to follow xstahsie's tip.
xstahsieIt's probably worth mentioning that I had to rename laf_6.bin to laf_6.img in order to flash it in TWRP. Also, at the time of writing, the latest version of Magisk is 22.0 but I used Magisk v21.4 instead because it had a zip file (Magisk-v21.4.zip) available for download so that I can flash it via TWRP. Link below.
I followed the guide after I rooted and installed Lineage OS 18.1. I had to remove LineageOS because it was bad with response, couldn't see hidden wifi, and just ran hot. So I followed your guide and I am in a logo bootloop and get the reminder to lock the bootloader everytime it starts. Any suggestions for getting past the bootloop?
I fixed problem by installing LAF you referenced and then LGUP to 10p kdz. However I noticed two things.
1) Whenever I boot up I have the nag message to my bootloader. Any way to address this?
2) If I try to follow steps above to install 20h, I get a decrypt message in TWRP after I flash 20h and before Magisk. Anyone see this? I didn't encrypt my storage before hand.
memnon79 said:
I fixed problem by installing LAF you referenced and then LGUP to 10p kdz. However I noticed two things.
1) Whenever I boot up I have the nag message to my bootloader. Any way to address this?
Click to expand...
Click to collapse
You're stuck with it, it's just the way it will be from now on.
memnon79 said:
2) If I try to follow steps above to install 20h, I get a decrypt message in TWRP after I flash 20h and before Magisk. Anyone see this? I didn't encrypt my storage before hand.
Click to expand...
Click to collapse
I don't remember seeing that. I probably didn't care if it did show up since it was a new install from scratch anyway.
Does encrypting the phone work after following this guide?
hey there, cant help u with the encryption thing cuz thats far beyond my knowledge. some weeks ago my phone dropped, and a tiny crack on the edge appeared. what i didnt know was that this crack is the beginning of the end of the V20. heres the story short: small crack over time leads to a bigger crack, bigger crack multiplies and u have some more cracks covering the whole screen. also the screen can pop off and hanging loose a little. in my case 4-6 weeks and i have to get out phone 2/3 which i am setting up using this guide now. fortunately i left myself a huge pyle of information on how to do this when starting at 0. over time u forget EVERYTHING u have done, so having these infos is hammering.
lucky me did i save my internal memory of phone 1/3 bcuz 30min later the screen was totally fuqqed up, no access no chance of backupping internal memory.
so heres my recommendation:
DONT drop your phone. even in my case with rubber battery case from aliexpress
(perfine "10000"mah) a 50cm drop cracked the edge of the screen. if that happens, backup your internal memory !!! (just do this on a regular base)
when ur screen gets damaged and u cant enter information or cant see anything anymore on the screen ur internal data is lost. so always have ur internal memory backuped!
and great job LG for producing such a huge pyle of ****. one small drop, screen cracked, bravo, last time i ever bought anything from lg. my V10 dropped like a 1000times, nothing, still up and running. v20, drop, 6weeks later, dead. thanks LG the customers all over the world couldnt wait to use these bull**** crackable glass-screens. great job, -1 customer.
I've tried this on two different computers with two different cables in every USB port on the machines but can't get by the Windows portion. I am using UPPERCUT as the windows box/LGUP reports no device found without it...
Of course UPPERCUT drives windows security mad as it's reported as doing bad things but as I'm using an extra win laptop that will be wiped I disable all of that....
I have three different sourced KDZ files as the one linked wasn't initially reporting any mirrors. Eventually a mirror did pop up for it but by then I had downloaded two others -- all were the same size and one of the three reported from LGUP was bad. Every attempt with the other two failed. Invalid Command response came up a few times... sometimes it just failed at around 80+ percent from the PC side which was 99% on the phone's downloader mode progress bar.
It's very frustrating.... I would like to blame windows but there seem to me plenty here with success... any other ideas?
Also... since it got so far, rebooting at this point just goes to the download mode so I might be hosed... I can force it to the fastboot mode and it is still unlocked so I've been trying to install TWRP onto recovery using the linux/android machine but when I type
fastboot flash recovery twrp.img from the directory where twrp was downloaded I get this:
sending recovery --- okay
writing recovery --- failed remote: unknown command
So... any thoughts?
aloha, at which step are u stuck exactly? did u make your phone being recognized by the win10 pc?
one thing to regard is, that a usb-CHARGING cable possibly wont work, u need a designated media/data-cable.
i had this situation before, where using many different usb cables drove me insane bcuz i simply couldnt establish a proper data connection with phone/pc, it just didnt work. it took me many hours until i realized, that all of the cables i tried were charging cables!
for me the most difficult step was having the phone being recognized by the win-pc, the rest went relatively easy.
dikkbutt said:
aloha, at which step are u stuck exactly? did u make your phone being recognized by the win10 pc?
one thing to regard is, that a usb-CHARGING cable possibly wont work, u need a designated media/data-cable.
i had this situation before, where using many different usb cables drove me insane bcuz i simply couldnt establish a proper data connection with phone/pc, it just didnt work. it took me many hours until i realized, that all of the cables i tried were charging cables!
for me the most difficult step was having the phone being recognized by the win-pc, the rest went relatively easy.
Click to expand...
Click to collapse
The phone is recognized by the PC, no problem. I do have to use UPPERCUT to get LGUP to recognize it though. The step I'm stuck at is applying the downgrade. It gets to various percentages of done-ness and fails. It got far enough that now my only options on the phone are Download mode or fastboot mode. Problem is, I can't seem to get anything to push to recovery so I assume that it's still not properly downgraded.
I've tried a few different cables and keep in mind the cable I used in the linux adb bootloader step worked fine. I don't entirely know what difference there is between a charging and data cable but I do know the main differences in the steps are a> Windows and b> size of transfer.
weird. since im no pro myself, my ideas are limited on this one. there might be some kind of loose contact at the charging port,
that when the phone is moved just a little it looses connection for a second and reconnects again, had that in the past, so try not to touch the phone at all. did u use the 10p kdz file mentioned before? did u make sure it has been downloaded correctly?
if an error occured and there are some % missing... its like faulty ram, hard to detect.
assuming, u did or did not downgrade to 10p, did u try to continue with the linux-step? ---->
---------------------------
on the linux-desktop, click on the LG folder, inside, click on LGLAF runningnaked.
a terminal-window opens.
type: git pull
type: git checkout h918-miscwrte
type: ./step1.sh
now we have flashed twrp onto downloadmode
-----------------------------
maybe uppercut/lgup displayed an error message for no reason, and the downgrade itself went through without a problem in the background.
pcs sometimes do weird things.
if nothing works, try setting up win10 and try on a virgin system. in my case, OnOshutup prevented win10 from recognizing the phone,
or try using a 3rd pc from a friend.
i was able to setup my phone 2/3 using this guide in 30min, no problems at all. (i hope i wrote down, how i solved that simlock issue.....)
no matter what causes the problemin ur case , id be interested to hear what it was.
Thanks! Rooted and Unlocked thanks to this guide!
I tried following other guides using UPPERCUT and it fails to downgrade due to Anti Roll Back. How does this relate to this guide since the last thing I want is for (by design) for it to brick the phone. I have yet to find anything specific saying an unlocked bootloader will bypass the anti rollback check.
Hi As a noob does this keep VoLTE? I have followed this guide and backgrade to 10p was perfect! VoLTE working on a phone that was "new" from china. VoLTE did not work on the 20p rom it had. Also does anyone prefer Phoenix591's h918-20g-prerooted rom to the stock one? I have read a lot but am somewhat confused by varying instruction threads. I want to use this as a daily driver. Thanks
After the most recent update my phone got put into a bootloop that wouldnt stop for some reason, it would boot and then after I wanna say less than 20 seconds it would reboot itself, and just kept going on in this cycle unless I powered it off when it was booted. Anyway I've been trying everything I can to get the damn thing working again so I can at the very least get my pictures off of it without factory resetting it and nothing is working, and I sorta feel like I've made things worse. I tried flashing with Odin but after that the thing just stopped booting alltogether so that kinda limited my options a lot. Now I'm trying to sideload an update from an sd card which might work if i can find the right thing to sideload onto it but before it gets anywhere it tells me error in /sideload/package.zip (status 7) so either I just need a different thing to sideload or something's broken. Either way I don't know how to get it working cause I have no idea what I'm doing here so now I need help.
My phone is SM-G970U SPR
Sounds like you are in a bad spot. If your pictures are on internal storage then flashing anything in Odin will wipe that.
I think you need to accept that they may be lost.
not so fast, i've used home_csc in all my flashes and when I finally got one working all my stuff was still intact. Now i just need to figure out how to get it to stop bootlooping.
Hello friends, I am currently crying in the same boat!
So, similar to Oske829 my phone ( Samsung Galaxy S10e ) has entered into a bootloop after a recent update that occurred roughly on February 06, 2021.
I am also experiencing the same symptoms as well:
My phone starts to boot up, then fails and Approximately 20 seconds after, it repeats that cycle. The phone continues to bootloop until drained of its battery then repeats this cycle again once if it is charged. **this is the current situation**
After playing around with the buttons, the only progress I've made is reaching the Download Mode. Ive yet to try odin or anything else and would like to ask for some help please! I really want to be able to save the data on there (pictures, music, apps, etc..)
Any help is appreciated, Thanks!
AlphaFeedback said:
Hello friends, I am currently crying in the same boat!
So, similar to Oske829 my phone ( Samsung Galaxy S10e ) has entered into a bootloop after a recent update that occurred roughly on February 06, 2021.
I am also experiencing the same symptoms as well:
My phone starts to boot up, then fails and Approximately 20 seconds after, it repeats that cycle. The phone continues to bootloop until drained of its battery then repeats this cycle again once if it is charged. **this is the current situation**
After playing around with the buttons, the only progress I've made is reaching the Download Mode. Ive yet to try odin or anything else and would like to ask for some help please! I really want to be able to save the data on there (pictures, music, apps, etc..)
Any help is appreciated, Thanks!
Click to expand...
Click to collapse
Download the latest official firmware with Frija tool (no download caps unlike websites like Sammobile etc). Just be aware that if you download and use Android 11 you wont be able to downgrade to Android 10.
After you have downloaded it unpack the zip and run Odin. In order to preserve your data flash the HOME_CSC file not the regular CSC... file. Once you unpack the files you will see.
The phone needs to be in download mode for flashing and battery is suggested to be at 40% or more.
Btw a good way to get out of bootloop and get the phone to shut down is to connect the USB cable (could be from charger or PC) and then press Volume Down+Power buttons to force a restart. It may be nessesary to do this a few times.
At one point you will not see the boot screen but instead it will show the lightning bolt charging logo and the percentage. After that you can simply unplug the cable and the phone will turn off.
In order to enter Download mode the best way is to start with phone turned off. Hold Bixby+Volume Down buttons and connect the USB cable from PC. Once you see the confirmation screen you can release the buttons and press Volume Up to continue.
AlphaFeedback said:
Hello friends, I am currently crying in the same boat!
So, similar to Oske829 my phone ( Samsung Galaxy S10e ) has entered into a bootloop after a recent update that occurred roughly on February 06, 2021.
I am also experiencing the same symptoms as well:
My phone starts to boot up, then fails and Approximately 20 seconds after, it repeats that cycle. The phone continues to bootloop until drained of its battery then repeats this cycle again once if it is charged. **this is the current situation**
After playing around with the buttons, the only progress I've made is reaching the Download Mode. Ive yet to try odin or anything else and would like to ask for some help please! I really want to be able to save the data on there (pictures, music, apps, etc..)
Any help is appreciated, Thanks!
Click to expand...
Click to collapse
So incredibly glad to hear I'm not a lone soul dealing with this issue. I've tried a whole bunch of things to fix this issue but nothing is getting me anywhere. I tried flashing android 10 but as that other lad said you can't flash older versions of android.
At this point I think my only chance of saving the phone is to wait for a new system update to release and flash that in case it somehow magically fixes the phone for some reason. I wouldn't recommend trying to flash atm because it doesn't seem to help currently and if you donk it up you'll lose your data which is not something either of us want to do.
I'll let you know what happens if I try flashing a future update.
Well i had an even bigger problem initially. Not only was my S10e bootlooping. My EFS partition was missing files (dont know how that happened). That meant that IMEI was blank and there was not network connectivity aside from Wi-Fi.
Unfortunately even the stock firmware flash does not fix EFS. Thankfully i had a backup (multiple actually) stored away including EFS. So with some fiddiling around in custom recovery file manager (TWRP) i manged to get that restored. I did lose bunch of pictures in intrernal storage tho. Thankfully it was nothing important. Now i keep everything on SD card and SD Cards backup in PC.
Now im trying to get the phone rooted with Magisk but the damn thing is not working.
This underscores the importance of regular (i had weekly TWRP) backups. I had backups of all partitions except internal data like pictures etc. Lesson learned i guess.
Hey RaXelliX thanks for lending a hand! Unfortunately I'm using a Mac Pro and Frija is a Windows exclusive *tears*
it seems that my next best alternative is to use Samloader instead of Frija, and JOdin3 instead of Odin. After some research ive realized that I am way out of my depth , but shall continue nonetheless. I'm gonna try your method with these alternatives and hope for the best, that sounds good in theory I was just curious to the thoughts of others more experienced.
And Oske829 your definitely not alone, stay strong and best of luck
Thanks!
There was a new firmware on Sammobile that I just tried flashing, didn't fix the problem, still bootlooping. I am officially out of ideas on how to fix this. I think there's something funky at the hardware/software level that's throwing a fit about having to run android 11 that's causing this, but I have no clue what it could be or how to resolve it. Not sure if there's anything i can do at this point to save my data.
Oske829 said:
There was a new firmware on Sammobile that I just tried flashing, didn't fix the problem, still bootlooping. I am officially out of ideas on how to fix this. I think there's something funky at the hardware/software level that's throwing a fit about having to run android 11 that's causing this, but I have no clue what it could be or how to resolve it. Not sure if there's anything i can do at this point to save my data.
Click to expand...
Click to collapse
You could try flashing a custom recovery (i suggest TWRP: https://eu.dl.twrp.me/beyond0lte/ S10e Exynos version) and the once in recovery connect USB cable to move the data off. If you succeed then you could wipe the phone and get out of bootloop.
When flashing recovery via Odin use the AP field and select the twrp-3.5.0_9-4-beyond0lte.img.tar file and make sure NAND Erase and Re-Partition are OFF. Auto-Reboot could be on or off.
This would touch only the recovery partition and will not wipe data unless you do it yourself inside TWRP.
There are a few caveats with this. The phone may complain about missing VBMETA header. If that's the case i will share a modified TAR file that includes that and TWRP itself. Or the phone could fail flashing custom recovery due to Vaultkeeper that prevents flashing unofficial binaries. This usually happens a day or two after flashing firmware. After that Vaultkeeper disengages.
Obviously your bootloader should be unlocked. You can do that by pressing Bixby+Vol Down before connecting the cable (with phone off) and then long press Vol Up to enter bootloader unlock mode. Bootloader can later be relocked again.
RaXelliX said:
You could try flashing a custom recovery (i suggest TWRP: https://eu.dl.twrp.me/beyond0lte/ S10e Exynos version) and the once in recovery connect USB cable to move the data off. If you succeed then you could wipe the phone and get out of bootloop.
When flashing recovery via Odin use the AP field and select the twrp-3.5.0_9-4-beyond0lte.img.tar file and make sure NAND Erase and Re-Partition are OFF. Auto-Reboot could be on or off.
This would touch only the recovery partition and will not wipe data unless you do it yourself inside TWRP.
There are a few caveats with this. The phone may complain about missing VBMETA header. If that's the case i will share a modified TAR file that includes that and TWRP itself. Or the phone could fail flashing custom recovery due to Vaultkeeper that prevents flashing unofficial binaries. This usually happens a day or two after flashing firmware. After that Vaultkeeper disengages.
Obviously your bootloader should be unlocked. You can do that by pressing Bixby+Vol Down before connecting the cable (with phone off) and then long press Vol Up to enter bootloader unlock mode. Bootloader can later be relocked again.
Click to expand...
Click to collapse
Is this exclusively for exynos phones or can I run twrp on a qualcomm device?
nevermind i found the snapdragon version of twrp
I'm trying to unlock the bootloader the way you described but that doesn't seem to be doing anything, and any guides I'm seeing on how to unlock it all involve doing something that resets the phone which isn't what I'm going for.
Oske829 said:
I'm trying to unlock the bootloader the way you described but that doesn't seem to be doing anything, and any guides I'm seeing on how to unlock it all involve doing something that resets the phone which isn't what I'm going for.
Click to expand...
Click to collapse
You might be out of luck as Snapdragon versions do not allow bootloader unlocks. At least as far as i know. I wrongly assumed you had Exynos version. If the data is important the last resort might be to contact some data recovery company. Im sure they have tools to access the internal memory even if the phone bootloops or flat out refuses to boot.
Flash 4 file firmware
Use Home_csc
If you want keep your data
Hucin44 said:
Flash 4 file firmware
Use Home_csc
If you want keep your data
Click to expand...
Click to collapse
I believe he already tried that and the phone is still bootlooping. Im betting that whatever causes the bootloop is in the data, the data he needs to access.
A bad situation all around because if he wipes the data it will likely fix the bootloop but he will lose the data. If he keeps the data the phone will keep bootlooping and he wont be able to access it. Although i would argue that the data you cant access is effectively lost anyway and that the proper functioning of the phone is more important.
I've heard that theres tools you can use to recover deleted data after resets and stuff since data doesnt get wiped when its deleted its just marked as stuff that can be written over. So I would think there would be a way for me to reset my phone to get it working and then recover the data with one of those programs, but the problem is from what I've heard you need a rooted device to do any of that and since I can't unlock my bootloader I don't think that can happen.
The one last thing I'm going to try before I seek out help from data recovery people is to try pushing the smartswitch apk onto the phone with adb and then hoping I have enough uptime to install it before the phone reboots cause I've heard you can use smartswitch in download mode to backup data, but I haven't found any guides anywhere about how this is done so I don't know if its actually doable.
Oske829 said:
I've heard that theres tools you can use to recover deleted data after resets and stuff since data doesnt get wiped when its deleted its just marked as stuff that can be written over. So I would think there would be a way for me to reset my phone to get it working and then recover the data with one of those programs, but the problem is from what I've heard you need a rooted device to do any of that and since I can't unlock my bootloader I don't think that can happen.
The one last thing I'm going to try before I seek out help from data recovery people is to try pushing the smartswitch apk onto the phone with adb and then hoping I have enough uptime to install it before the phone reboots cause I've heard you can use smartswitch in download mode to backup data, but I haven't found any guides anywhere about how this is done so I don't know if its actually doable.
Click to expand...
Click to collapse
Well I find myself here after 48 hours of s10e hell, with an almost identical issue. After a couple attempts and a trip to our local cell phone repair place, we ended up doing a factory reset, with the same hopes -- that the files were still there but the space marked as "free" and a 3rd party data recovery program could bring them back from the dead.
But they all require your phone to be rooted first - and this being my first venture into phone rooting I'm not really sure which route to go, or if it'll even be worth the effort. Does rooting the phone mean flashing it with a new OS, or simply unlocking superuser access so the recovery software can do its bit? (bear in mind, a lot of these products try to root the phones themselves, but none of them seem to work - I've tried about 4 different products thus far).
I'm convinced that if I can root this phone, the recovery software WILL find those lost sectors and recover the lost data, even after a factory reset -- there's plenty of youtube videos out there that say you can do this, but the rooting bit is what's got me tied up in knots!
huh.. jeah, latest update bricked my s10e too.
but my case, when power on phone, nothing happens, just black.. when conect cable to pc , then i can enter recovery and download mode..
till now nothing helped..
oem locked, frp locked, cant flash custom binaries!
hope next update will fix this madnes..
or need to find same firmware as update.zip what we can flash using stock recovery option (sadly saamsung dont give any update.zip files, i gues its money thing)
so, odin dont help, chimera tools dont help, and enginering combination file give some approval error to flash factory binaries!
houdini987 said:
I'm convinced that if I can root this phone, the recovery software WILL find those lost sectors and recover the lost data, even after a factory reset -- there's plenty of youtube videos out there that say you can do this, but the rooting bit is what's got me tied up in knots!
Click to expand...
Click to collapse
well ,as far as i know, thease all recovery lost data works with HDD type disks, flash memory are out of luck..
because, i easy restored deleted data from my HDD, if it wasnt multiple times formated or writed full hdd , deleted, writed full etc.. but with SSD that software isnt working, due flash memory.. but, maybe im just to old, and there are new softs who can do that, just, i have not seen any jet!
I’ve been asked to restore data and repair bootlooping A51. I’ve tried basic steps and resorted to updating firmware with odin. Recovery mode failed and I couldn’t enter it or fastboot. I’ve used home_csc to hopefully keep user data. Odin shows it passed, left my phone for 10 mins but it still was stuck. Maybe I’ve given it too little time to setup the new firmware.
Anyways now it’s unresponsive, nothing shows up anymore, no button combination works, nothing detected by my PC. Tried disconnecting the battery.
Everything was stock, pretty sure I’ve used the correct system version.
What can I do at this point?
piotrekkrzewi said:
I’ve been asked to restore data and repair bootlooping A51. I’ve tried basic steps and resorted to updating firmware with odin. Recovery mode failed and I couldn’t enter it or fastboot. I’ve used home_csc to hopefully keep user data. Odin shows it passed, left my phone for 10 mins but it still was stuck. Maybe I’ve given it too little time to setup the new firmware.
Anyways now it’s unresponsive, nothing shows up anymore, no button combination works, nothing detected by my PC. Tried disconnecting the battery.
Everything was stock, pretty sure I’ve used the correct system version.
What can I do at this point?
Click to expand...
Click to collapse
Have it repaired. It sounds like something got corrupted and the bootloader won't start. The only way to fix this is with a board level flash, and Samsung/Qualcomm do not make the tools or the files available to do this. Most repair centers don't even have the ability to do this; they'll just replace the mainboard and program it with the original IMEI. Of course, this means that all user data will be lost.
V0latyle said:
Have it repaired. It sounds like something got corrupted and the bootloader won't start. The only way to fix this is with a board level flash, and Samsung/Qualcomm do not make the tools or the files available to do this. Most repair centers don't even have the ability to do this; they'll just replace the mainboard and program it with the original IMEI. Of course, this means that all user data will be lost.
Click to expand...
Click to collapse
Does it make a difference that after a while the phone responded and I can access download mode? I’m trying third firmware from a different source and still using home_csc to hopefully save the damn data.
Is there anything else I could try at this point? Still no access to recovery though.
What I am going to try now is to get twrp on the device and get the data off the phone this way. I don’t know if I can since I didn’t enable OEM Unlocking or whatever it’s called in the settings. Hoping for some tips, thanks!
piotrekkrzewi said:
Does it make a difference that after a while the phone responded and I can access download mode? I’m trying third firmware from a different source and still using home_csc to hopefully save the damn data.
Is there anything else I could try at this point? Still no access to recovery though.
Click to expand...
Click to collapse
If you're able to get into download mode, reflash the OEM firmware. You can try using HOME_CSC. Data wipe might be necessary if it bootloops.
piotrekkrzewi said:
What I am going to try now is to get twrp on the device and get the data off the phone this way. I don’t know if I can since I didn’t enable OEM Unlocking or whatever it’s called in the settings. Hoping for some tips, thanks!
Click to expand...
Click to collapse
If you didn't unlock the bootloader, this won't do you any good.
Are you seeing any error message on the download mode screen?
I forget if the A51 is a Mediatek device
Right now the device is dead again. I will be leaving it to charge and I hope it comes back alive, like it did before.
I’ve had bootloader errors on the download mode screen when I tried to install the firmware. At this point I am lost in what happened when, but I believe I got the bootloader errors when I tried to install the same firmware I’ve tried prior, so that doesn’t make sense.
I think the battery might be the problem here. It would turn off randomly before it bootlooped and it doesn’t hold charge now. The battery might’ve failed when an update was installing, but that’s just my detective work.
I will be replying with further tests when it turns on.
So, there is some weird behavior. After the phone charges for a few hours it tries to boot. If I hard reset it twice it dies. I need to hard reset it after it comes back and immadietly hold vol buttons to get it into download mode.
I can now experiment more. The original firmware version the phone came to me with is unable to install. Probably because I’ve already installed a newer version of android and it doesn’t allow me to go back. I’ve tried installing a newer bootloader and leave AP, CSC, CP. It fails harder, but I’m still able to try new firmware.
What do I try now? Data recovery is expensive, I’d love to try some stuff, but I don’t have enough time to do proper research and conduct experiments unfortunately.
Sounds like hardware problem if you can control temperature very precisely, you can try to remelt the solder if you know the temperature from the Service Manual. If not - leave to specialized service center who does this kind of thing all the time (ask them if they do).
In terms of flashing, to boot, maybe try Samsung Switch as it should be designed to preserve data however I am not vouching for it.
With Odin just skip the USERDATA and PIT
Doublecheck the exact model SM-Axxx ? Firmware files should be different per exact model.
Share pictures when you hit a problem.