Soft bricked my device. Can get to download mode but it keeps going off during flash - Samsung Galaxy S7 Questions and Answers

So last week suddenly my phone after it got switched off, never turned on and got stuck in bootloop. I went to recovery mode and wiped cache and data.
Could see that it showed "failed to load efs mount" something like that. Tried restarting but it was stuck at logo again.
So i downloaded official firmware for my device of my region from sammobile and i flashed it via odin by getting into the download mode. The flash was successful but even after the flash it was STILL stuck in bootloop.
So i thought i will try to flash again which i did via odin but this time it failed at system.img and i started getting a blue screen with a message like "the firmware is corrupted. Please flash via smart switch"
I tried smartswitch but it said invalid serial number even after i entered the correct serial number from the box
Now i tried to flash the firmware again but this time the phone suddenly turned off in the middle of the flash.
I thought it might not be charged so i put it on charging for a long while and tried flashing again.
Now again it got off in the middle of the flash and this thing keeps on repeating i cannot flash the firmware via odin.
Went to service centre today and they said it's a hardware issue and asking for a huge amount for motherboard replacement since it's out of warranty.
I don't want to spend that much
Is there anything i can do to fix it up.
Please help. Please.

If the motherboard is faulty, you need a new motherboard
Check ebay for S7s with broken screens for cheap you can get the board from

The service centre guys here are really noob so i know they must have tried once or twice and just chose the easy way out by saying the motherboard is faulty. I believe it can still be fixed. I am not sure how.

You've done everything possible with software, apart from using CSC and checking the PIT > Repartition option in ODIN
If that still fails then it's almost certainly hardware, sounds like hardware anyway considering the way it happened and the problems you're having trying to flash it

The first and only time when the flash was successful i used home_csc file. Used the same later in my failed attempts and also the csc file.
Haven't checked re partition or pit options.
Also what about the efs mount failed message i saw right in the beginning in recovery mode?

Have a look here, similar problem, different Samsung S phone
https://forum.xda-developers.com/galaxy-s3/general/how-to-fix-efailed-to-mount-efs-invalid-t2858056

Went through it. Don't really know what to do next to fix this since the thread didn't have anyone claiming they fixed it. What can i do if i flash twrp?

Related

GT-P3110 Problem stuck on "Firmware Upgrade encountered an issue.."

i tried rooting my tab (GT-P3110) and in Odin it didn't showed pass, my tab rebooted and it showed an error saying "Firmware Upgrade encountered an issue..." i tried putting it in download mode to flash a new rom but it's stuck in that screen, i also tried putting it in recovery mode but it doesn't work either, is my tab totally bricked? can it still be fixed? i can't enter download mode or recovery mode, every time i turn it off it just goes back to the same screen and when i put the charger in, it still shows the same screen, help me please...thank you!
dhrexler said:
i tried rooting my tab (GT-P3110) and in Odin it didn't showed pass, my tab rebooted and it showed an error saying "Firmware Upgrade encountered an issue..." i tried putting it in download mode to flash a new rom but it's stuck in that screen, i also tried putting it in recovery mode but it doesn't work either, is my tab totally bricked? can it still be fixed? i can't enter download mode or recovery mode, every time i turn it off it just goes back to the same screen and when i put the charger in, it still shows the same screen, help me please...thank you!
Click to expand...
Click to collapse
I have the same problem, can some1 help?
I try using kies to fix the problem but the gt-p3110 is not supported when u go to Firmware upgrade and initilazation, put in the serial number from the back of your battery, then the tablet model and when u click ok is telling you that your model is not supported.
Can some1 tell me how to do it using Odin , even with complete wipe, or stock ROM.
Thx and please reply
"Firmware Upgrade encountered an issue..." = that´s the black screen of death. Download mode is enabled in this situation automaticly, no need to boot into downloadmode.
Uninstall Kies first! Maybe that´s why Odin failed! Maybe some Kies prozess running in the background.
Start Odin as Administrator,
Connect your tabelt to your PC (yes, with black screen of death!) - Odin will show "Added"
Now flash a Stockrom for your device
Safed your Tab
i did that with odin, untill it show'd pass but when i turn it on is the same
i loaded the file in the pda section,auto reboot and f.reset time boxes were checked
i used this http://www.hotfile.com/dl/182607797/b61e3af/P3110XXCLK7_P3110OXACLK7_BTU.zip.html from here http://forum.xda-developers.com/showthread.php?p=35095146 , the uk link
if u have a working method can you please tell me and live a link and how to do it?
thanks and please reply
maybe bad download? redownload a rom for your deivce e.g. from www.samsung-updates.com
Just did that , but is the same, I use Odin 3.07
Any more ideas?
Thanks
I notice this thread has been dead for some time. However, I am also in search of a possible solution to this as a colleague of mine passed one of these tablets on to me in the hope I could get some use out of it. It is in the same state as the previous posters claim, 'firmware encountered a problem.....'. Obviously I'm in a different situation as I did not buy this thing with my own money, not will I lose out if it is beyond repair. But I'm interested to solve this problem none the less.
So, so far I have attempted to flash a philztouch recovery using Odin which was unsuccessful and I have also tried to flash several compatible ROMs. All of which have failed, Odin confirming each time that the attempts were unsuccessful. I have read that the tablet in this state auto unlocks the bootloader, so I have ruled out that as a sticking point. I have read that flashing ROMs potentially won't work either as the corruption of the firmware is seated too deeply for this to have any effect. I know a possible solution is to try flash a new kernel as this goes a lot deeper, but this can be risky, however, like I mentioned above is not an issue for me as I have nothing to lose. Does anyone have any pointers on how to flash a new kernel? Surely there is a way to remove the corrupted firmware completely? I have to admit this is beyond the realm of anything I have used Odin for in the past. Also, I am more than aware some of my understanding may be incorrect so feel free to correct me. Any help would be greatly appreciated, even if it's just to point me in the right direction or towards some reference material which could shed some light on this particular problem.
Thanks in advance.

Flashing firmware failure

I have really messed up my phone (G920IDVU3EPC6). I rooted it and then got stuck in TWRP menu and tried to get out of it and wiped all the system files and cache, cus im stupid. I am now trying to flash the android firmware on it to get my phone back to the way it was before rooting. I've downloaded the latest firmware but I can't flash it. It either gets stuck on setupconnections or NAND write start. tried different odin versions and cables
Please help me, i want my phone back
MachoJamie said:
I have really messed up my phone (G920IDVU3EPC6). I rooted it and then got stuck in TWRP menu and tried to get out of it and wiped all the system files and cache, cus im stupid. I am now trying to flash the android firmware on it to get my phone back to the way it was before rooting. I've downloaded the latest firmware but I can't flash it. It either gets stuck on setupconnections or NAND write start. tried different odin versions and cables
Please help me, i want my phone back
Click to expand...
Click to collapse
Hi,
try resurrect your phone by using Samsung Smart Switch. There is a procedure in smart switch on how to get back your phone. Google it first or simply try it directly. It will ask you at some points for the exact model(SM-G920I in your case) and the serial number of the model which is written on the backside. I softly brick my S6 till now three times and every time i revived my phone back with Smart Switch.

Need help with potential softbrick with G955F

Hi guys,
I need help with my G955F. I was on Carotid's ROM and attempted to flash the AQL5 (BTU) firmware downloaded from Samfirm to go back to stock. The flash failed during writing the system.img and now it is stuck on the "Error has occurred while updating the device software" screen.
I can get into Download mode and I can boot into TWRP using ODIN.
Each attempt to flash a firmware in ODIN throws up a "FAIL" during the system.img write portion.
Each attempt to reflash a ROM from my external SD card in TWRP throws up an error while writing to system. /System is unmounted when I start up TWRP and I have to manually mount it each time.
The phone is "not supported" in Samsung Smart Switch.
Anyone have any ideas?
Never mind!
I noticed that whenever I plugged the phone into the PC when the "Error has occurred while updating the device software" screen was on it flashed up as "added" in Odin.
So I tried flashing the stock AQL5 firmware while on this screen and it worked!
I'm just going to leave this here because it's an avenue I never considered and haven't seen online.
ianrobbie said:
Never mind!
I noticed that whenever I plugged the phone into the PC when the "Error has occurred while updating the device software" screen was on it flashed up as "added" in Odin.
So I tried flashing the stock AQL5 firmware while on this screen and it worked!
I'm just going to leave this here because it's an avenue I never considered and haven't seen online.
Click to expand...
Click to collapse
Good observations.
You are correct, if the first flash fails, immediately re-enter download mode and flash again.
JeffDC said:
Yes, if the first flash fails, immediately re-enter download mode and flash again.
Click to expand...
Click to collapse
Yeah, but that's the thing. I wasn't even in Download mode for the successful flash. I was just on the Emergency Recovery screen and when I started the firmware flash, a small progress bar appeared on the screen below the text.
ianrobbie said:
Yeah, but that's the thing. I wasn't even in Download mode for the successful flash. I was just on the Emergency Recovery screen and when I started the firmware flash, a small progress bar appeared on the screen below the text.
Click to expand...
Click to collapse
Have not heard of that before - new to me, interesting find.
So the way to replicate is . . .
The way I got there was to have a screwed up install. I tried to flash a stock firmware and it generated a FAIL in Odin during the /system.img write.
The phone then rebooted to a pale green screen with a large triangle and exclamation mark advising me that the phone was in Emergency Recovery Mode and I should restore it by plugging it into a PC with Smart Switch installed.
Interestingly, Smart Switch refused to recognise my phone, saying it was an "unsupported device".
After numerous attempts to flash new firmware through Odin and TWRP (even using the two-step method of getting into Download mode) and using different cables/ports I was planning on getting it professionally repaired until I noticed that when Odin was running and I plugged the phone in, with the emergency screen on, it was "added" as it would be during Download Mode.
I loaded up the AQL5 firmware, and tried to flash. A progress bar appeared under the text on screen and it got about halfway through flashing /system when it failed again, but this time it has progressed much further than any other attempt.
I then reset everything, used an official Samsung cable and a port directly connected to the motherboard on my PC (I had been using a USB extension cable before) and attempted another flash and it worked!
I don't know how you would go about replicating those circumstances without risking your phone but if you find yourself stuck in the same situation, give it a try.
It worked for me.
Thanks, ianrobbie.

Semi-Bricked S7

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

SM-T510 defective?

Hello,
My daughter has an SM-T510 that stopped working out of the blue. One day it just would not start anymore. Only the start screen appeared, it looked like a bootloop to me. So I tried flashing the firmware with Odin, which did not succeed but I possibly used the wrong firmware, for another region for instance.
After a while I think I found the correct firmware, but still no luck. I assume it should use the Dutch version, however I do not know if it really is the Dutch version.
By now it only showed the screen with the message that the firmware download had failed and I should use Smartswitch to recover. Well Smartswitch does not work, in the emergency recover screen of smartswitch the T510 is not displayed so I cannot select it. Odin still works though, I can still connect and flash firmware. But none that I tried were completed.
I finally flashed the PIT file, and at least now I get the normal start screen, and I can get to the recovery screen again. When I used Odin to flash the correct (Dutch) firmware it just hangs during writing userdata. When I use the HomeCSC it finishes correctly, but after reboot I get SAMSUNG for a long time, then it reboots and SAMSUNG again etc.
I just want it to work again, no root needed. Anybody any idea what I could try? Or is the internal memory of this tablet just defctive?
I don't really know what to try now, so if you can, please help!
Hans

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