Help with soft-bricked non-rooted Samsung S7 - Samsung Galaxy S7 Questions and Answers

First of all thank you for taking the time to read this. I've been struggling with this for a while and I hope we can resolve it somehow.
So here's what's been going on:
My Samsung S7 was an absolute mess for a few weeks, battery life was absolutely miserable (died 10 seconds after unplugging it from charger) but I just assumed it needed a battery replacement.
I've never attempted to root, flash or mess with my device in anyway, not after this issue has already occurred. One day I pull out my phone to check something and it's dead again, okay. nothing out of the usual.
I tried to turn it on and it would get stuck on the Samsung logo. I tried plugging it in and just leaving it and it would stay stuck on the Samsung logo forever. Please note at this point I have not tampered with my devices hardware or software yet.
I tried downloading odin and downloading stock ROMs from somewhere but that didn't work.
My phone is NOT rooted, USB debugging is NOT enabled.
The phone contains a lot of my stuff and I would prefer not to lose them. I was wondering if there was a way for me to retrieve my stuff before factory resetting it or throwing the thing away. The phone itself means nothing to me. I just want what's on it.
Any kind of help is appreciated, I really wanna get to the bottom of this. Thanks in advance to everyone.

How far into the Odin flash did you get? Because a stock flash still wipes data if you use all firmware files.
If you can get into recovery try the wipe cache partition option, this won't wipe any user data but might fight the boot issue.
If you can still get into download mode try flashing the BL and CP firmware files for your model/region/carrier/version and nothing else via Odin. Again flashing just these won't wipe, but may fix issues.
I'd recommend reading his guide before using Odin https://updato.com/how-to/how-to-install-an-official-samsung-stock-firmware-using-odin
When downloading firmware I'd recommend using a firmware resource like updato, sammobile or here on xda
Without USB debug and root you're limited in the tricks you can do to get the phone in a state to transfer files.

Beanvee7 said:
How far into the Odin flash did you get? Because a stock flash still wipes data if you use all firmware files.
If you can get into recovery try the wipe cache partition option, this won't wipe any user data but might fight the boot issue.
If you can still get into download mode try flashing the BL and CP firmware files for your model/region/carrier/version and nothing else via Odin. Again flashing just these won't wipe, but may fix issues.
I'd recommend reading his guide before using Odin
When downloading firmware I'd recommend using a firmware resource like updato, sammobile or here on xda
Without USB debug and root you're limited in the tricks you can do to get the phone in a state to transfer files.
Click to expand...
Click to collapse
I'm not entirely sure how far I got. I followed a tutorial that said to flash the BL files but I'm not entirely sure if it worked or not considering my phone wasn't rooted/didn't have USB debugging and didn't restart or fix the issue. I got the files from updato. I've tried wiping the cache partition but that didn't seem to fix it. I haven't tried flashing any CP on there as I didn't know what that was but I will try to do that today.
Should I flash new BL files and try again, and what are CP files/where do I obtain them? Thank you so much for your help.

If you get the firmware from updato, or sammobile it should come with 5 files: AP, CP, BL, CSC and Home CSC all in one zip.
I would say try flashing CP and BL from the zip, and for Odin flashing you don't need USB debugging or root etc. You just need to be in download mode.
So try putting the CP and BL files into Odin and flashing, the newer version the better, but anything thats the same as your android version i.e. if you're on Nougat than any Nougat BL should work

Beanvee7 said:
If you get the firmware from updato, or sammobile it should come with 5 files: AP, CP, BL, CSC and Home CSC all in one zip.
I would say try flashing CP and BL from the zip, and for Odin flashing you don't need USB debugging or root etc. You just need to be in download mode.
So try putting the CP and BL files into Odin and flashing, the newer version the better, but anything thats the same as your android version i.e. if you're on Nougat than any Nougat BL should work
Click to expand...
Click to collapse
So I got the firmware, the most recent I could find that matched my region/carrier etc. I ran it through Odin and it seemed to have worked. Odin said it passed and the phone restarted.
Then it showed that it was applying system updates or something. But then it stopped. It showed the android guy laying down and the words "No command" I tried figuring out how to resolve this but I couldn't find anything that could be done without having USB debugging already enabled. I can't think of anything else to try and I'm running out of options. If you have any more ideas I'd really appreciate it. It seems like such a waste to give up now when the phone is only soft-bricked and not completely useless.

Only extra steps I can think of will save the phone but lose the data

Related

Stock UK S7 Bootloop (Unrooted) Need help!!!

I've looked through the forums to identify a similar problem to mine in hopes I can resolve this issue but I've not found one. So here's my problem.
I have a UK Galaxy S7 running on the 6.0 firmware that came with the phone when it first released (Yes I know it's very old and should have updated along the way but I had plans to root and install customs at some point which obviously didn't happen). The phone is unrooted and the stock rom is the XEU version with Multi-CSC (according to recovery)
The phone was running fine until a few days ago when all of a sudden it shut off and wouldn't power on via the power button. So I pressed and held Home + Volume Down + Power. The green screen appeared and selected Volume Down to restart the device (as you do in odd situations like this).
PHONE IS NOW STUCK IN BOOTLOOP!!!
I have tried various means (not including flashing) to get the phone to boot to the home screen with no success. I have not performed a factory reset from recovery because I have various data, including pictures, music and other software on the internal storage which I wish to keep and not lose. The phone is still under warranty so I can take it to a Samsung repair outlet to get them to fix it for me but due to data privacy or whatever, they have to format it clean to then install the most recent firmware.
I've been scouring the forums for help on flashing OTA updates which retain data on phone whilst possibly allowing my phone to boot into the home screen so I can access my data. Is such a thing possible?
Any help would be greatly appreciated.
You can flash the latest firmware without losing data (as long as the hardware is not faulty) by downloading it from either sammobile, updato.com or using the samfirm tool here on XDA (Fastest option)
Then extract the firmware and add all 4 parts to ODIN 3.12.7 (Do not use ODIN 3.13.1 unless you want to flash BTU Oreo 8.0)
AP << (Takes quite a long time to add, be patient as ODIN will look frozen)
BL
CP
HOME_CSC
If you use CSC instead of HOME_CSC it will wipe the device after the flash, HOME_CSC will not wipe it
Put the phone into download mode (Home & Power & Volume Down)
Connect to PC USB and hit start on ODIN
Wait for the flash to complete (It can take quite a while) and the phone should hopefully boot back into Android
Thank you for the quick response.
It's imperative I get this right and ensure I've understood your reply correctly.
I have downloaded the following:
SM-G930F_1_20180417125627_cz5yqc22v0_fac - from SamFirm as it was much quicker like you said.
Odin3+v3.12.7 - This particular version was quite difficult to get a hold of. Various sites redirecting me to various pages without a direct link to download but I hope that is the correct one.
The firmware zip contains the following files:
AP_G930FXXS2DRDI_CL12365438_QB17789072_REV00_user_low_ship_meta.tar -------1
BL_G930FXXS2DRDI_CL12365438_QB17789072_REV00_user_low_ship.tar -------2
CP_G930FXXU2DRB6_CL648265_QB8952207_SIGNED.tar -------3
CSC_XEU_G930FXEU2DRB5_CL13061583_QB16917099_REV00_user_low_ship.tar
HOME_CSC_XEU_G930FXEU2DRB5_CL13061583_QB16917099_REV00_user_low_ship.tar -------4
I have labelled the files 1-4 in the order of flashing/installation (I presume?)
I will also follow your instruction of flashing HOME_CSC_XEU_G930FXEU2DRB5_CL13061583_QB16917099_REV00_user_low_ship.tar as this will NOT wipe any existing data on the phone?
Will following the above steps act as an upgrade to the phone and not wipe apps/pictures etc in the internal storage?
Have I missed out any other steps?
Cassie` said:
Thank you for the quick response.
It's imperative I get this right and ensure I've understood your reply correctly.
I have downloaded the following:
SM-G930F_1_20180417125627_cz5yqc22v0_fac - from SamFirm as it was much quicker like you said.
Odin3+v3.12.7 - This particular version was quite difficult to get a hold of. Various sites redirecting me to various pages without a direct link to download but I hope that is the correct one.
The firmware zip contains the following files:
AP_G930FXXS2DRDI_CL12365438_QB17789072_REV00_user_low_ship_meta.tar -------1
BL_G930FXXS2DRDI_CL12365438_QB17789072_REV00_user_low_ship.tar -------2
CP_G930FXXU2DRB6_CL648265_QB8952207_SIGNED.tar -------3
CSC_XEU_G930FXEU2DRB5_CL13061583_QB16917099_REV00_user_low_ship.tar
HOME_CSC_XEU_G930FXEU2DRB5_CL13061583_QB16917099_REV00_user_low_ship.tar -------4
I have labelled the files 1-4 in the order of flashing/installation (I presume?)
I will also follow your instruction of flashing HOME_CSC_XEU_G930FXEU2DRB5_CL13061583_QB16917099_REV00_user_low_ship.tar as this will NOT wipe any existing data on the phone?
Will following the above steps act as an upgrade to the phone and not wipe apps/pictures etc in the internal storage?
Have I missed out any other steps?
Click to expand...
Click to collapse
Almost, you must flash all 4 files at the same time, load them all into ODIN before hitting start, doesn't matter which order you load them in as long as they are all loaded before flashing
And you are correct with the rest, HOME_CSC will not wipe anything, and yes it will act as an upgrade although it is a full ROM you are flashing, to you the user, it will appear exactly the same as an upgrade as long as you use HOME_CSC
No other steps needed
I have loaded all 4 files as seen in the screenshot however, after clicking on Start, about 5 or so minutes later, it says FAIL in the first box above where it initially said RECOVERY. It's stopped and not done anything else.
I'm not sure what to do here.
I've also added a shot of the top left of odin screen
Cassie` said:
I have loaded all 4 files as seen in the screenshot however, after clicking on Start, about 5 or so minutes later, it says FAIL in the first box above where it initially said RECOVERY. It's stopped and not done anything else.
I'm not sure what to do here.
I've also added a shot of the top left of odin screen
Click to expand...
Click to collapse
Yea it's failed, you can close ODIN and disconnect now
You can try doing it again, but that should have worked, you could try downloading the latest 6.0.1 ROM and flashing that the same way first, it looks like your bootloader is version 1 where this ROM is version 2 as shown by the S2 number in the middle of the firmware version
*Detection* said:
Yea it's failed, you can close ODIN and disconnect now
You can try doing it again, but that should have worked, you could try downloading the latest 6.0.1 ROM and flashing that the same way first, it looks like your bootloader is version 1 where this ROM is version 2 as shown by the S2 number in the middle of the firmware version
Click to expand...
Click to collapse
I've gone to https://updato.com/firmware-archive-select-model?record=0DB04AD4C34211E69215FA163EE8F90B
From there I've selected the most recent 6.0.1 ROM which is dated 4th December 2016. Problem is that the download is EXTREMELY slow and I have no idea how to use SamFirm to download that particular ROM.
I guess all I can do now is play the waiting game and repeat the steps with the 6.0.1 ROM once it's downloaded.
Thank you for your responses and I will post back here once the download has finished.
Cassie` said:
I've gone to https://updato.com/firmware-archive-select-model?record=0DB04AD4C34211E69215FA163EE8F90B
From there I've selected the most recent 6.0.1 ROM which is dated 4th December 2016. Problem is that the download is EXTREMELY slow and I have no idea how to use SamFirm to download that particular ROM.
I guess all I can do now is play the waiting game and repeat the steps with the 6.0.1 ROM once it's downloaded.
Thank you for your responses and I will post back here once the download has finished.
Click to expand...
Click to collapse
Yea unfortunately all alternatives other than samfirm tool are slow, and samfirm only downloads the latest ROM
Judging by the bootloader version and the ROM version you have chosen, if this also fails, then I would assume a hardware failure
The only other thing I could suggest if this doesn't work, is to pick an older version of ODIN to flash the older firmware, ODIN 3.11.1 was used for MM 6.0.1 ROMs if I'm remembering correctly
https://forum.xda-developers.com/showthread.php?t=2711451
or
https://odindownloader.com/download/odin3-v3-11-1
I've restarted the device and it said An error has occurred while updating the device software use the emergency recovery function.
I attempted to reboot the phone a couple of times to get into recovery and I was successful. I now see the the Bootloader version is now 2 as opposed to 1. After seeing this I attempted to flash version 7 as initially suggested yet it did not work.
I'm not sure how Bootloader changed from 1 to 2 and is still failing to flash in odin. I am still waiting for the 6.0.1 ROM to download, fluctuating between 16-19 hours as of writing this response. Once it's ready I'll try and load up odin 3.11.1 as a second solution and try 6.0.1, even though Bootloader says 2.
Cassie` said:
I've restarted the device and it said An error has occurred while updating the device software use the emergency recovery function.
I attempted to reboot the phone a couple of times to get into recovery and I was successful. I now see the the Bootloader version is now 2 as opposed to 1. After seeing this I attempted to flash version 7 as initially suggested yet it did not work.
I'm not sure how Bootloader changed from 1 to 2 and is still failing to flash in odin. I am still waiting for the 6.0.1 ROM to download, fluctuating between 16-19 hours as of writing this response. Once it's ready I'll try and load up odin 3.11.1 as a second solution and try 6.0.1, even though Bootloader says 2.
Click to expand...
Click to collapse
Your ODIN screenshot looks like it managed to flash the bootloader before it failed, so it's possible you are going to need to use a version 2 ROM from now on, I have the same phone, XEU G930F and it is running Bootloader version 2 (Running the BTU Oreo 8.0 stock ROM)
But if the 7.0 Nougat ROM failed again it's looking more like a hardware issue, seems to be failing when it should be starting to flash SYSTEM (AP)
You can try flashing the 7.0 ROM section AP on it's own with ODIN 3.12.7, see if that fails immediately, if it does that's likely where the problem lies, it's not unheard of for these S7's to fail like this out of the blue, I see it maybe a couple of times a month on XDA
Only solution is to get the mainboard replaced
But yea, give 6.0.1 a shot anyway, worth a try saying as everything else has failed up to now
(Looking for mirrors for that 6.0.1 ROM, I've got it on my main machine but it is offline right now with no graphics card so I can't access any files, stuck with a laptop, I always download and save every new firmware release for this reason)
There is Samsung SmartSwitch software for Windows for the emergency firmware recovery, but it WILL wipe your phone back to factory and delete all your data (Last resort if nothing else works, although if ODIN doesn't work, I'd say hardware failure)
Right so I've managed to download the most up to date 6.0.1 ROM and attempted to flash it with ODIN V3.11.1 and it idles at the recovery.img part and fails like the previous efforts.
I'm not sure if attempting to get OREO running with the latest ODIN might work? If not then I may have to give up and do a factory reset through Samsung SmartSwitch.
It probably is a hardware failure as I had noticed the lightning bolt appearing when the phone is off whilst plugged in the charge, it take about a minute or so for the percentage bar to appear, usually it was about 2 seconds before this disaster occurred.
Cassie` said:
Right so I've managed to download the most up to date 6.0.1 ROM and attempted to flash it with ODIN V3.11.1 and it idles at the recovery.img part and fails like the previous efforts.
I'm not sure if attempting to get OREO running with the latest ODIN might work? If not then I may have to give up and do a factory reset through Samsung SmartSwitch.
It probably is a hardware failure as I had noticed the lightning bolt appearing when the phone is off whilst plugged in the charge, it take about a minute or so for the percentage bar to appear, usually it was about 2 seconds before this disaster occurred.
Click to expand...
Click to collapse
Worth a try flashing Oreo, BTU on samfirm tool will give you it for the G930F
If you're seeing problems with the charging now, you might get lucky and find the USB port is the only thing needing replacing, but if you send it off for repair it's unlikely even if that is the case that they won't just charge you for a new mainboard, you can likely get USB ports from eBay but opening the S7 isn't as straight forward as the back is glued on for IP68 water resistance and needs a heatgun to remove, not sure if anything else like the screen needs removing for USB, I've not opened mine
You've tried a new USB cable and a different PC too ?
*Detection* said:
Worth a try flashing Oreo, BTU on samfirm tool will give you it for the G930F
If you're seeing problems with the charging now, you might get lucky and find the USB port is the only thing needing replacing, but if you send it off for repair it's unlikely even if that is the case that they won't just charge you for a new mainboard, you can likely get USB ports from eBay but opening the S7 isn't as straight forward as the back is glued on for IP68 water resistance and needs a heatgun to remove, not sure if anything else like the screen needs removing for USB, I've not opened mine
You've tried a new USB cable and a different PC too ?
Click to expand...
Click to collapse
The charging issue occurred immediately when the phone shut off by itself and wouldn't power on conventionally. The phone is still under warranty so if the Samsung SmartSwitch software is unable to recover the phone then I will take it to the repair center and have them fix/replace it. If it's a case of undoing the glue and whatnot then I'd rather they give me a replacement.
I did change the USB cable to a different one, and I've attempted to flash the 2 different ODINS with the 2 different ROMS on a laptop as opposed to the desktop I was using. Still fails at the recovery.img part of ODIN.
I'm going to try Samsung SmartSwitch now and see if this will give it some life. If THAT doesn't work then it's 100% hardware issue and my data was lost to begin with.
Considering both versions of ODIN didn't work with either ROM, I don't think I'll be looking for the BTU version of OREO to attempt to install with. If there's a direct download that's quick I might but I think I'll attempt to Emergency Recover through the Samsung tool.
I want to thank you plenty for your help and knowledge on this. It certainly has been helpful and given me better understanding of the problem I'm facing and potential solutions. I have a feeling that the SmartSwitch recovery won't work either and still be posting back here hahaha.
OK I've got bigger problems on my hands now.
SmartSwitch and Kies both say "SM-G930F" does not support initializing. Please contact our service center.
I've already inputted my serial number and it gives me the same message on both programs. When I called up customer support they said my warranty is till the end of May this year.
Would the service center be able to solve this problem?
Cassie` said:
OK I've got bigger problems on my hands now.
SmartSwitch and Kies both say "SM-G930F" does not support initializing. Please contact our service center.
I've already inputted my serial number and it gives me the same message on both programs. When I called up customer support they said my warranty is till the end of May this year.
Would the service center be able to solve this problem?
Click to expand...
Click to collapse
Yea I'd get it repaired under warranty asap then if it runs out soon, they will most likely replace the mainboard I'd say, which means 100% data loss as the storage is on a chip on that board, or might even send you a new S7
Really does sound like hardware failure if all of these recovery options have failed, just keep quiet about what you've done to try and fix it, just act dumb and say it won't turn on or they could claim you nulled your warranty messing with ODIN
And no probs, that's what XDA is all about Let us know how the repair goes and buy a MicroSD card to save your important files to this time so you don't lose anything if it happens again
*Detection* said:
Yea I'd get it repaired under warranty asap then if it runs out soon, they will most likely replace the mainboard I'd say, which means 100% data loss as the storage is on a chip on that board, or might even send you a new S7
Really does sound like hardware failure if all of these recovery options have failed, just keep quiet about what you've done to try and fix it, just act dumb and say it won't turn on or they could claim you nulled your warranty messing with ODIN
And no probs, that's what XDA is all about Let us know how the repair goes and buy a MicroSD card to save your important files to this time so you don't lose anything if it happens again
Click to expand...
Click to collapse
I had an SD card inside with all my pictures I took whilst in Japan (Thank GOD!). I took it out when this issue arose to avoid potential data loss there.
As far as ODIN is concerned, warranty still appears intact but yes I'll keep hush hush when I'm there. I believe they said they'd give me a refurbished S7 if they couldn't reflash it there.
Cassie` said:
I had an SD card inside with all my pictures I took whilst in Japan (Thank GOD!). I took it out when this issue arose to avoid potential data loss there.
As far as ODIN is concerned, warranty still appears intact but yes I'll keep hush hush when I'm there. I believe they said they'd give me a refurbished S7 if they couldn't reflash it there.
Click to expand...
Click to collapse
Yes, ODIN will not void warranty if you only flash stock, but telling them you used ODIN might, it's not a tool meant for us, it's Samsung's internal flashing tool not meant to be leaked online, sometimes they'll use any reason to blame you and not have to pay out / replace it so yea best not say anything other than official recovery methods suggested by Samsung themselves, if anything at all, I'd just say I didn't do anything, an OTA update came through and it never rebooted or something
Good job with the pics, I don't save any media to the phone itself, I create folders on the SDCard and move it over if I can't have it save there automatically, that way wiping the phone is nothing but a pain to set back up again, nothing actually lost
*Detection* said:
Yes, ODIN will not void warranty if you only flash stock, but telling them you used ODIN might, it's not a tool meant for us, it's Samsung's internal flashing tool not meant to be leaked online, sometimes they'll use any reason to blame you and not have to pay out / replace it so yea best not say anything other than official recovery methods suggested by Samsung themselves, if anything at all, I'd just say I didn't do anything, an OTA update came through and it never rebooted or something
Good job with the pics, I don't save any media to the phone itself, I create folders on the SDCard and move it over if I can't have it save there automatically, that way wiping the phone is nothing but a pain to set back up again, nothing actually lost
Click to expand...
Click to collapse
I'm going to give flashing one last try.
I am currently downloading Android 8.0.0 for United Kingdom (BTU, NOT XEU). I have to head to work in a few minutes. When I get back I'll attempt to flash that without BootLoader as that will change it to version 3 and you can't downgrade from that from what I've read here and there. If that fails then it's off to the repair center. If it's some sort of hardware failure then it won't flash regardless what stock rom/ODIN version I'm using.
Not sure if BTU update with home CSC will retain my data (assuming it works)
Cassie` said:
I'm going to give flashing one last try.
I am currently downloading Android 8.0.0 for United Kingdom (BTU, NOT XEU). I have to head to work in a few minutes. When I get back I'll attempt to flash that without BootLoader as that will change it to version 3 and you can't downgrade from that from what I've read here and there. If that fails then it's off to the repair center. If it's some sort of hardware failure then it won't flash regardless what stock rom/ODIN version I'm using.
Not sure if BTU update with home CSC will retain my data (assuming it works)
Click to expand...
Click to collapse
Your CSC will remain XEU as it is Multi-CSC containing BTU, and BTU contains XEU, I'm running it now with BTU firmware & XEU CSC
Bootloader for this Oreo 8.0 BTU firmware is still 2, with it being a new Android version you'll need to flash the BL too anyway
*Detection* said:
Your CSC will remain XEU as it is Multi-CSC containing BTU, and BTU contains XEU, I'm running it now with BTU firmware & XEU CSC
Bootloader for this Oreo 8.0 BTU firmware is still 2, with it being a new Android version you'll need to flash the BL too anyway
Click to expand...
Click to collapse
I've had no luck flashing it with Oreo. It's definitely going to the repair centre. Such a shame.
I'm very grateful for your time and help with this. I will report back this weekend with the results of what the repair centre will do regarding the device. Don't like to leave a thread without an end result.
Many thanks again!

I need Help With Odin

So, somehow I managed to download and install CRC4 (950U) onto my galaxy 955U now I am trying to upgrade to CRD4 (955U) with Odin but I kept getting fail sha256 errors so I now have Prince Cosmy ODIN which fixed that but now Setup Connection does not pass and if it does it fails, I have been able to load everything in to odin and only get as far as Setup Connection is there something else I can try that I have not tried already? Please Help
I have downloaded G955U1 software and tried that but it does not load the system.img and I am still on the same version
Zmantech said:
So, somehow I managed to download and install CRC4 (950U) onto my galaxy 955U now I am trying to upgrade to CRD4 (955U) with Odin but I kept getting fail sha256 errors so I now have Prince Cosmy ODIN which fixed that but now Setup Connection does not pass and if it does it fails, I have been able to load everything in to odin and only get as far as Setup Connection is there something else I can try that I have not tried already? Please Help
I have downloaded G955U1 software and tried that but it does not load the system.img and I am still on the same version
Click to expand...
Click to collapse
Try one section at a time.. Don't rush it.. AP.. BL.. and so on.
You'll find that it's a bit easier to handle than loading up the entire rom in one shot.. Make sure you don't have the auto reboot box checked.. But as you do each section reset the Odin software. Once you complete the last section, attempt to boot up recovery and reset cache and then wipe user data.. TWICE. Then boot back into download mode and then load the entire rom into the proper slots.. This especially helps if you're RMP fuse says it's blown.. Once you have accomplished this then attempt to restart. You will find that this phone is very hard to kill, if you treat this problem like a better opportunity to learn more about the phone than panicking. It might actually reboot once to preform a reset on its own. It's normal. After the reboot let it go for a bit.. Get it and you settled.
Good luck.
How did you install CRD4? Was it through a stock recovery zip?
If so, make sure you're using Odin 3.13.1 (see attached) to go back to G995U firmware

Flashing more than 1 roms parts?

I doubt it, but has anyone ever successfully flashed the AP from one rom that you actually want to operate on, along with the BL, CP and CSC from the newer rom which your bootloader will let you successfully flash? Just a brainstorm I had...
I tried making my own combination firmware but odin just crashes and doesnt even do anything, or the newest odin just hangs on "file analysis" forever. Ive tried the patched odin too that I found somewhere here with the same hanging on analysis.
Basically my bootloader is 3 but marshmallow that im actually wanting to run is for bootloader 2. so ive just been brainstorming different ways.

Bricked my Samsung Galaxy A8 2018

Here is what I did so far to get here.
First I followed the guide to root my phone, and to be honest, all was perfect. I had to restore stock rom cause my first few tries failed. But seems I flashed a rom for a different provider. It worked anyway, but I don't have my sim card in that phone, it's temporarily in another device.
I had a little issue in settings, where battery was coming up two times in the list. That bugged me, I wanted to restore the rom and see if a full restore would take care of this issue, but somehow, after I installed twrp and rooted my phone, I can no longer flash anything stock with odin, it fails.
If I try to flash the AP tar.md5 file, it fails when it gets to system. And then after rebooting, I see this message:
"An error has occurred while updating the device software. Use the emergency recovery function in the Smart Switch PC Software"
I tried installing smart switch and kies, and both software doesn't detect my device in download mode or twrp (obviously)...
So to get rid of the emergency message, I flashed twrp again with odin, and been successful. If I tried to flash the AP image again, or CSC, it fails. And then I get the message back.
After flashing twrp, I'm stuck in a boot loop. Would need to restore system I think, but cannot seem to be able to do it with Odin.
Any possible way to recover my device?
Update: Turns out I must have made a mistake with the firmware I thought I had flashed, versus the one I was trying to flash and was failing. I downloaded the latest october firmware and it's currently flashing in odin!
This not be posted in development !
mchlbenner said:
This not be posted in development !
Click to expand...
Click to collapse
Sorry about that, I thought it was related to the topic. Obviously, you saw that I do not have a thousand posts around here, a wise thing to do would have been to suggest me where should I have posted this, and how can I move my thread around? Do I wait for a mod to move it himself?
pleclair said:
Here is what I did so far to get here.
First I followed the guide to root my phone, and to be honest, all was perfect. I had to restore stock rom cause my first few tries failed. But seems I flashed a rom for a different provider. It worked anyway, but I don't have my sim card in that phone, it's temporarily in another device.
I had a little issue in settings, where battery was coming up two times in the list. That bugged me, I wanted to restore the rom and see if a full restore would take care of this issue, but somehow, after I installed twrp and rooted my phone, I can no longer flash anything stock with odin, it fails.
If I try to flash the AP tar.md5 file, it fails when it gets to system. And then after rebooting, I see this message:
"An error has occurred while updating the device software. Use the emergency recovery function in the Smart Switch PC Software"
I tried installing smart switch and kies, and both software doesn't detect my device in download mode or twrp (obviously)...
So to get rid of the emergency message, I flashed twrp again with odin, and been successful. If I tried to flash the AP image again, or CSC, it fails. And then I get the message back.
After flashing twrp, I'm stuck in a boot loop. Would need to restore system I think, but cannot seem to be able to do it with Odin.
Any possible way to recover my device?
Click to expand...
Click to collapse
You forgot to flash all of them
BL, AP, CP, CSC
pleclair said:
Sorry about that, I thought it was related to the topic. Obviously, you saw that I do not have a thousand posts around here, a wise thing to do would have been to suggest me where should I have posted this, and how can I move my thread around? Do I wait for a mod to move it himself?
Click to expand...
Click to collapse
Just because you have a lot of post you don't post question in development section.
587.saboor said:
You forgot to flash all of them
BL, AP, CP, CSC
Click to expand...
Click to collapse
I did flashed all of them. But it always fails. No matter if I select only BL, AP, CP, CSC... or all of them. Almost seems like twrp is preventing write or something else does.
It fails after a few seconds in the process. Is there any kind of log generated by odin? If so, where can I find it? I don't see much information beside that it fails.
OEM unlock checked in dev options?
USB debuging checked? these were always the go to mischecks...
back when I had the galaxy a5 2017 520W canada unit I flashed a european rom to see if FM radio was going to work. it Worked, but I had the simular issue with battery showing up twice AND I ended up tripping knox while doing it. phone seemed to work fine other then that issue and the radio worked as well.
Flashed it back to 520W stock... later sold the phone... no issues. perhaps it was different with nougat
supertac said:
OEM unlock checked in dev options?
USB debuging checked? these were always the go to mischecks...
back when I had the galaxy a5 2017 520W canada unit I flashed a european rom to see if FM radio was going to work. it Worked, but I had the simular issue with battery showing up twice AND I ended up tripping knox while doing it. phone seemed to work fine other then that issue and the radio worked as well.
Flashed it back to 520W stock... later sold the phone... no issues. perhaps it was different with nougat
Click to expand...
Click to collapse
Yeah, I have those two checked. For some reasons, I was tired that night, and was actually trying to flash 7.1.1 firmware, while having already upgraded to 8.0. So I believe this operation wasn't getting thru because of that. I was tired, and picked the wrong folder, and flashed 7.1.1. Well, I was trying to flash, but it kept failing, but had a tiny bit done, enough to screw this up like this.
When I picked the right folder, 8.0, then it worked.
As for tripping knox, you probably tripped it while flashing twrp. I believe it trips it, haven't heard of a way to do it.
pleclair said:
Yeah, I have those two checked. For some reasons, I was tired that night, and was actually trying to flash 7.1.1 firmware, while having already upgraded to 8.0. So I believe this operation wasn't getting thru because of that. I was tired, and picked the wrong folder, and flashed 7.1.1. Well, I was trying to flash, but it kept failing, but had a tiny bit done, enough to screw this up like this.
When I picked the right folder, 8.0, then it worked.
As for tripping knox, you probably tripped it while flashing twrp. I believe it trips it, haven't heard of a way to do it.
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Click to collapse
nope. NEVER flashed twrp once on the A5- the european firmware tripped it on the 520W

SM-G930T Hard Bricked

Hello,
I did something rather stupid. I downloaded stock firmware from samsung-firmware.org for this build TMB-G930TUVU2APC8_G930TTMB2APC8-20160325.
Using heimdall, I tried to flash all the partitions to my T-Mobile S7. The boot, cache, aboot, recovery, system, and a few other partitions failed during flash due to not passing the checksum. I thought it would be a good idea to remove each partition that failed and just try to flash the partitions that would flash. I believe the partitions that did not flash failed because this firmware build was not the proper baseband version for my phone. I kind of just guessed which firmware build to pick. I guessed because my phone was already softbricked from improper flashing before. I could not obtain the baseband version. That would explain why the locked partitions did not pass checksums.
My half-assed plan to flash only the partitions that would go through worked... kinda. I managed to get a bunch of partitions to flash including modem, keymaster, cmnlib, cmblib64, persist and some others. Immediately after flashing, the device just went black. It is now not responding to any inputs or turning on. I cannot boot to recovery or download. It's completely bricked.
I heard it should be near-impossible to brick due to having a locked bootloader, but this is pretty bricked to me. I have let it sit, not plugged in for half an hour now in hopes that I can get it to turn on after a few hours of discharging or something.
Any way to fix this? Can I take it in to a local repair store to get it unbricked? Any help would be greatly appreciated.
Thanks.
Use Odin3 v3.13.1 It is a windows based program to flash Samsung phones.
ff-racer said:
Use Odin3 v3.13.1 It is a windows based program to flash Samsung phones.
Click to expand...
Click to collapse
Thank you for your reply. It doesn't matter now what tool I use.
At this point, my phone is bricked. No software can pick up the phone now.
I noticed you are trying to flash a Marshmallow OS? Why not try one of the newer roms listed in this forum. I am using Oreo.
Link: https://forum.xda-developers.com/tmobile-galaxy-s7/development/rom-g930tuvu4cri2-t3864700
ff-racer said:
I noticed you are trying to flash a Marshmallow OS? Why not try one of the newer roms listed in this forum. I am using Oreo.
Link: https://forum.xda-developers.com/tmobile-galaxy-s7/development/rom-g930tuvu4cri2-t3864700
Click to expand...
Click to collapse
Hi again. The stock S7 T-Mobile variant has a locked bootloader so I wouldn't even be able to flash anything except stock...
That's still not the point. My phone is bricked so I would not be able to flash anything at the moment. The point of this thread is to search for an answer about maybe why my phone is bricked and if there's any way to fix it without a JTAG.

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