[Completed] Boot loop after messing up EFS folder. - XDA Assist

Hello. I think I messed up the EFS folder on my Samsung J3 Pro (J3110) phone. I have a backup of the EFS folder though but I could not restore it as it's just the folder and not in tar or img format. My phone is in boot loop no matter what I do like flashing the stock rom a few times and try to wipe data and cache in the recovery.

Zhang Zihao said:
Hello. I think I messed up the EFS folder on my Samsung J3 Pro (J3110) phone. I have a backup of the EFS folder though but I could not restore it as it's just the folder and not in tar or img format. My phone is in boot loop no matter what I do like flashing the stock rom a few times and try to wipe data and cache in the recovery.
Click to expand...
Click to collapse
Greetings and welcome to assist. A corrupt efs folder would not normally cause the phone to bootloop it would only cause you to lose baseband. How did you back up your efs ? If it was twrp then restore it with that. I would try flashing a stock rom first though to see if it fixes your bootloop
Good Luck
Sawdoctor

sawdoctor said:
Greetings and welcome to assist. A corrupt efs folder would not normally cause the phone to bootloop it would only cause you to lose baseband. How did you back up your efs ? If it was twrp then restore it with that. I would try flashing a stock rom first though to see if it fixes your bootloop
Good Luck
Sawdoctor
Click to expand...
Click to collapse
Hi, thanks for your suggesstion. I tried flashing the stock rom but it's still in bootloop. I even wiped the data and cache in stock recovery and the phone reboots at the spinning Samsung animation. And yes I have the EFS folder backup but I cannot restore it as my phone is in the infinite bootloop state now.

Zhang Zihao said:
Hi, thanks for your suggesstion. I tried flashing the stock rom but it's still in bootloop. I even wiped the data and cache in stock recovery and the phone reboots at the spinning Samsung animation. And yes I have the EFS folder backup but I cannot restore it as my phone is in the infinite bootloop state now.
Click to expand...
Click to collapse
Have you tried kies/smartswitch emergency firmware recovery ?

Related

[Q] Cyanogenmod 10.1 Stuck On Bootanimation?

Hello XDA
I tried updating from Cyanogenmod 10.1 to 10.2 nightly( I understand it was development), and my phone froze on starting apps (cleared cache), and never booted. Next boot it stayed in a boot loop, so I decided to restore from a backup. I wiped my system and proceeded to restore both system and boot (didn't want to override my apps so I unchecked the rest), and then cleared caches again to be safe. Now it is in a bootanimation loop and has been so for 5+ minutes. What could possibly be the cause of this? Is there any way to fix this without having to wipe my apps and data (I have a backup of system, boot, android_secure).
Thanks,
ccrama
Did you flash the boot with fastboot?
leit4444 said:
Did you flash the boot with fastboot?
Click to expand...
Click to collapse
No, I updated with the CM updater. It did all the installing/wiping, but got me stuck in the original boot loop. Now, I used a backup to restore my old system files (from 10.1), but it is still in a boot loop D:
EDIT: I'm on TWRP and the backup was a nandroid backup
Give it a try to flash boot with fastboot. Your can extract it from your backup.
leit4444 said:
Give it a try to flash boot with fastboot. Your can extract it from your backup.
Click to expand...
Click to collapse
I'll try that, lets hope it works :fingers-crossed:

Flashed wrong hotspot... Will it be included in TWRP backup?

I flashed it but forgot to backup, stuck in boot loop (yellow sprint screen) ... So I backed up everything in TWRP... if I do a system restore /factory wipe, and then restore from twrp backup, will the bootloop go with it?
Blakestr said:
I flashed it but forgot to backup, stuck in boot loop (yellow sprint screen) ... So I backed up everything in TWRP... if I do a system restore /factory wipe, and then restore from twrp backup, will the bootloop go with it?
Click to expand...
Click to collapse
Sadly, if you made the backup while your system was in a bootloop, that backup will bring back the bootloop when restored.
Sorry about that.

[Q] Have a insolit problem..

Hello everyone .
my Nexus 5 is stuck in bootloop after trying to restore a Nandroid backup Lollipop .
The PC does not recognize the nexus into recovery it will in bootloop . I tried using ADB but is not recognized, I think in boootloop why I used CWM and TW , but I do not know how to solve ...
I searched the site but could not find useful answers.
adrsay64 said:
Hello everyone .
my Nexus 5 is stuck in bootloop after trying to restore a Nandroid backup Lollipop .
The PC does not recognize the nexus into recovery it will in bootloop . I tried using ADB but is not recognized, I think in boootloop why I used CWM and TW , but I do not know how to solve ...
I searched the site but could not find useful answers.
Click to expand...
Click to collapse
Do a factory reset after restoring your nandroid backup.
Primokorn said:
Do a factory reset after restoring your nandroid backup.
Click to expand...
Click to collapse
ok,as it is in this case the exact procedure ?
after the nandroid backup without exit to recovery mode?
adrsay64 said:
ok,as it is in this case the exact procedure ?
after the nandroid backup without exit to recovery mode?
Click to expand...
Click to collapse
I did wipe data from recovery , partition and Dalvik . ( although I think with Android Dalvik 5 is useless) ...
adrsay64 said:
ok,as it is in this case the exact procedure ?
after the nandroid backup without exit to recovery mode?
Click to expand...
Click to collapse
A factory reset can fix a bootloop. If not flash the factory images but you will lose all your data.
BTW what did you do to know if your PC doesn't recognize your device? Which recovery do you have?
After four factory reset I nave flashed new factory image and now are all ok.Exactly have lose all but...with one beckup is perfect....and "NEW".....
BTW what did you do to know if your PC doesn't recognize your device? Which recovery do you have?[/QUOTE]
The first problem it was a pc,with the sh...windows,after I change and with TW recovery is all ok...ths a lot....:good::good:

TWRP Restore Data and/or System = Bootloop

Something happened to my phone and I succeeded to flash it all new with Android 9.0 which I was on.
But when I try restore twrp backup (data and/or System) I always end up with bootloop.
Tried to reflash Magisk too but doesn't help.
Bootloops right back to TWRP after 2 minutes.
Anyone have any ideas on how I can get my data back from the twrp backup?
Tried to official twrp and bmu_sparks.
Thanks.
timebandi said:
Something happened to my phone and I succeeded to flash it all new with Android 9.0 which I was on.
But when I try restore twrp backup (data and/or System) I always end up with bootloop.
Tried to reflash Magisk too but doesn't help.
Bootloops right back to TWRP after 2 minutes.
Anyone have any ideas on how I can get my data back from the twrp backup?
Tried to official twrp and bmu_sparks.
Thanks.
Click to expand...
Click to collapse
Same thing happened to me yesterday. If you still have access to TWRP, enter it and wipe everything and install newest oxygen pie zip. TWRP is broken for our devie and backups cannot be trusted I'm afraid. Wish I knew this before.
timebandi said:
Something happened to my phone and I succeeded to flash it all new with Android 9.0 which I was on.
But when I try restore twrp backup (data and/or System) I always end up with bootloop.
Tried to reflash Magisk too but doesn't help.
Bootloops right back to TWRP after 2 minutes.
Anyone have any ideas on how I can get my data back from the twrp backup?
Tried to official twrp and bmu_sparks.
Thanks.
Click to expand...
Click to collapse
After restore is complete do not reboot, try the following, it might work,
1-Do not do any wipe,
2-Flash exactly the same ROM which is backed up,
3-Flash twrp,
4-Reboot twrp.
5-Flash Magisk,
8-Reboot system,
In case you are trying to go back from pie to oreo you have to flash roll back rom.
All the best, hope this helps., cheers.
Have tried all that with no luck. But if I do a Factory reset any time after the data restore the phone works but then I dont have any data
This sucks big time.
Have installed all from scratch. Luckly fastboot was working all the time
Some data I could restore with Titanium Backup but not so much I needed/wanted.
Too bad we cant rely on TWRP and its backup/restore feature.
timebandi said:
Have tried all that with no luck. But if I do a Factory reset any time after the data restore the phone works but then I dont have any data
This sucks big time.
Have installed all from scratch. Luckly fastboot was working all the time
Some data I could restore with Titanium Backup but not so much I needed/wanted.
Too bad we cant rely on TWRP and its backup/restore feature.
Click to expand...
Click to collapse
Its good only in the case if you are decrypted, since the time I'm decrypted no such problems, if you want you can try it,
https://forum.xda-developers.com/oneplus-6/how-to/tutorial-decrypt-flash-rom-pie-oreo-roms-t3838643
timebandi said:
Something happened to my phone and I succeeded to flash it all new with Android 9.0 which I was on.
But when I try restore twrp backup (data and/or System) I always end up with bootloop.
Tried to reflash Magisk too but doesn't help.
Bootloops right back to TWRP after 2 minutes.
Anyone have any ideas on how I can get my data back from the twrp backup?
Tried to official twrp and bmu_sparks.
Thanks.
Click to expand...
Click to collapse
Using TWRP backups on this phone is fun but not impossible. This process works for me.
1. Store backups on something other than the phone (I use an OTG card reader and 128 GB SD card)
2. Use a Fastboot Rom of THE EXACT SAME ROM as the backup and let it do it's thing flashing the phone (it will also wipe the phone in the process, which is why you need to store the backup elsewhere)
3. Boot up the phone and go through the whole process of setting it up. Don't worry about installing all your apps.
4. Install TWRP and Magisk if you used it on the backup.
5. Now restore your TWRP backups - just restore system, data, and boot.
I have done this at least 100 times and it has always worked.
I presume the fastboot rom is not only gonna wipe the internal drive but will also lock the bootloader, thats a lot of hassle to do every time you want to restore, but thanks for your suggestions, cheers.
vtec303 said:
I presume the fastboot rom is not only gonna wipe the internal drive but will also lock the bootloader, thats a lot of hassle to do every time you want to restore, but thanks for your suggestions, cheers.
Click to expand...
Click to collapse
The fastboot rom wipes the internal drive but DOES NOT lock the bootloader. Besides, I haven't seen or heard of another way to use TWRP backups without decrypting the phone, and I have security concerns with decrypting the phone.
tabletalker7 said:
The fastboot rom wipes the internal drive but DOES NOT lock the bootloader. Besides, I haven't seen or heard of another way to use TWRP backups without decrypting the phone, and I have security concerns with decrypting the phone.
Click to expand...
Click to collapse
ohh ok, I thought it locks it but thanks for the info, yes thats why I decrypted my device, lets hope in this thread we could find a easy way out to restore sucessfully while encrypted, have you tried just backing up boot, system and data and than restoring it ? cheers
vtec303 said:
ohh ok, I thought it locks it but thanks for the info, yes thats why I decrypted my device, lets hope in this thread we could find a easy way out to restore sucessfully while encrypted, have you tried just backing up boot, system and data and than restoring it ? cheers
Click to expand...
Click to collapse
Yes I tried. Without the fastboot rom to reset everything that stupid encryption bites you in the butt.
Yep. I just restored an entire nandbackup, and now my phone boots to a quailcomm dump screen only, can't fastboot into recovery or anything. Guess my new plans tonight involve fixing this thing.
I also got a bootloop after restoring 8.1 android with twrp 3.3.1 by nemo nemo on my leagoo xrover.
factory reset and wiping everything exept microsd card didnt help...
thanks for some help
vtec303 said:
After restore is complete do not reboot, try the following, it might work,
1-Do not do any wipe,
2-Flash exactly the same ROM which is backed up,
3-Flash twrp,
4-Reboot twrp.
5-Flash Magisk,
8-Reboot system,
In case you are trying to go back from pie to oreo you have to flash roll back rom.
All the best, hope this helps., cheers.
Click to expand...
Click to collapse
Thanks a lot, man. it worked for me

twrp backup restore and app help

hello, I have an issue..
I create complete rom backup with trwrp, but..
When I need to restore this backup , I restore it in TWRP, then reboot to OS but it NEVER boots up. It just stucks on white Sony logo and thats all
I have tryed wiping everything before 4restoring, and not wiping anything before restoring.. but my rom backup never boots up..actually it doesnt even start to load system OS never gets to bootup animation just stays on sony logo.. also tryed switching boot slot from A - B with twrp after restoring but no go.. please any ideas?
Also If I may.. have a second question regarding TWRP, when I install in system TWRP app, it never detects that twrp is installed .. maybe because xa2ultra doesnt have recovery partition or ? any solution to get twrp app to work when system is booted up?
no ideas why rom backup can't be restored? need ideas/help please..
is there any other way to make flashable rob backup excwpt in twrp wich doesnt work?

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