Samsung Galaxy S7 problem - phone stays stuck at boot - Samsung Galaxy S7 Questions and Answers

Stock Galaxy S7, no root, no dubious apps, only AirWatch Agent: play.google.com/store/apps/details?id=com.airwatch.androidagent required for installing a corporate email client on the personal phone.
Everything worked fine for months, until yesterday, when the app AirWatch crashed, and would not start.
The user decided to reboot the phone. On the reboot, the phone got stuck on the second Samsung logo animation.
Wipe cache, force restart, reboot, reboot bootloader were tried, hoping to fix this boot issue, but without success. The phone still stays stuck at the Samsung logo animation.
What I'm looking for: to avoid phone ROM reflashing, because it has no backup and the data on the microSD card is encrypted.
I want to recover the personal data, by any means.
Any suggestions on how to achieve this?
Thank you.

If you can't flash stock, and have already wiped cache, and the guy doesn't have a backup (dumb), then there's not much else you can do really
I'm not sure which part of the phone the encryption key is stored, but you could try flashing just the Bootloader part of the ROM with ODIN
Also not sure if flashing the same stock ROM over the top, but using HOME_CSC instead of CSC to avoid the factory reset, would mess up the encryption, but as a last resort it would be what I would do
Backups are good, if the data is so important to encrypt I can't see why it would not also be backed up

I understand your point and I agree with it.
As a sidenote, that encryption was required by the app AirWatch, not by the phone's owner.
We'll try those steps as a last resort, but for the moment, we're gathering information, since most of the options are a "no way back" process.
For example, I'm thinking about a way to inspect the boot process, and alter it if there's something there that hangs.
Could this be possible? Is there any documentation about this?

germanino said:
I understand your point and I agree with it.
As a sidenote, that encryption was required by the app AirWatch, not by the phone's owner.
We'll try those steps as a last resort, but for the moment, we're gathering information, since most of the options are a "no way back" process.
For example, I'm thinking about a way to inspect the boot process, and alter it if there's something there that hangs.
Could this be possible? Is there any documentation about this?
Click to expand...
Click to collapse
You could trying running a logcat with the phone connected to USB during boot, not sure if it will connect to adb though, worth a shot
https://www.xda-developers.com/install-adb-windows-macos-linux/
If it works it should show you what it's hanging on, no idea how you would fix it though without a custom recovery

Related

[Q] [Help] Stuck in boot on Google

Alright. This is a 100% stock Nexus S- nothing "development" wise was done to the device, no system tools installed that could cause issues, basically nothing but basic apps loaded on the device.
It just started today. I was working on my bf's Vibrant (another, more successful story) and grabbed my Nexus and hit the power button and it did not turn the screen back on. Holding the power button down did not reboot the device, and none of the buttons would light up or function.
So, I pulled the battery. Now every time I try to boot, it hits the "Google" screen and stays put. I left it alone for 5 minuets hoping it would finish booting and nothing. The soft buttons will light up, and if I touch them they register the touch but it does not help the phone to boot.
I do know that the phone was basically dead right before this happened, and at first I thought it was just dead. However, its been on the charger for at least 30 minuets- which should have given it enough of a charge to boot up, and still nothing.
What could cause this issue?
I did install a couple of new applications today, and I know the market updated a bunch of them but they're all apps that I've had on several phones (minus the two new ones today) and have never had an issue with any of them. The two new ones I downloaded were OS Monitor, and a 2G/3G toggle for hopes of improving some battery life.
But those are the only two things I've done differently. I've only been using the phone for a week but I haven't had any problems at all, before this.
Now- if worst comes to worst I can seem to get into the bootloader, and through that, stock recovery. So I can try to do a factory reset and wipe cache but without a backup I really kinda hope thats a last resort.
Please help, and let me know if you need any more information.
Thank you!
I understand that you're fully stock which I assume means you have a locked bootloader (everything I say from here on out assumes as such)? First, I'm going to also assume that you didn't update to 2.3.3? If not, then follow the steps in this guide to boot into a custom recovery and from there go to backup and restore and do a NANDroid backup. Now go to mounts and storage and mount USB storage (or whatever its called, don't have my phone right here). Plug your phone into your comp and copy over whatever you'd rather not lose from your SDcard (just in case you have to wipe). Now download the 2.3.3 update from here and put it on the root of your SD card. Now go back and flash this. Reboot and see if you're golden. If so, great, if not try a factory reset.
If that doesn't work go through the steps again to boot into a custom recovery, you might have to unlock your bootloader and wipe all your data (again) and restore your backup and try doing a factory reset with that. Don't worry about unlocking the bootloader, it can be relocked with a simple command and it won't wipe anything to relock it.
Here is the command just in case:
Code:
fasboot oem lock
I got all the way to having clockwork recovery booted up on the phone, but nothing would mount. Everything gave me an error, and factory reset froze...
I don't think there is anything I can even do from here, is there?

[Q] I think my XOOM is possessed, HELP!

I want to start out stating that i am very familiar with android's but have never experienced anything like this.
The first thing I tried was to oem unlock it from fastboot, which it claimed to do however i am skeptical as nothing else seems to stick, attempted to install cwm and TWRP neither with any success, even though it says the action was performed successfully.
The strangest thing is that i deleted all the apps on the device from settings/app, but when i rebooted my device they all came back!
All i wanted to do was do a factory reset, which also claims to finish successfully but after rebooting from recovery mode, i am back where i started.
App Updates also do not work as every time the tablet reboots, the apps have to be re-updated.
Its like the tablet is stuck in a read only state and when it reboots all changes are lost.
Like i said, this thing is acting weird and i have no idea where to go from here. Any help would be greatly appreciated!
[Update: Tried RSDLite, same results, Result is PASS however after system reboot everything is the same.]
Another update, tried downloading HWI69 which is the stock rom, tried to fastboot each image but nothing sticks even though it seems to say it writes it to the system. I'm starting to think the NAND memory is locked up and cannot be written to anymore if that's even a possibility.
BUMP

My samsung j2 prime (sm-g532g/ds) will no longer turn on

Good afternoon or whatever time you have there, greetings. So here's the situation: I've been trying to root my Samsung J2 Prime, about two days ago, using KingRoot, KingoRoot, and FramaRoot, but to no avail, they did not work. So, becoming desperate, I ventured to the dangerous thing I regret doing: flashing its firmware. So I've attempted to root it with Odin, and then it said "To start up your device, enter your password." And I was dazed, I don't have a password! And if it really had a password before, I don't know! Moving on, I've not attempted to wipe its data, knowing the files in it. So, I tried to recover it on Odin by opening download mode, the FRP Lock is on, so unfortunately most of my ventures are unsuccessful. Then, after entering an incorrect password (on the home screen something of the "To start up your device..." screen), it proceeded to wipe factory data, which then prompted my phone to have a bootloop, however I could still access download mode, but not recovery mode. Then, when I've somehow managed to access recovery mode through root boot on Odin, I've wiped my factory data and the cache partition. Then, after a few attempts, I used some firmware I've downloaded and it said it worked for me so I was at first. But when I checked my phone, it would no longer turn on! As in it wouldn't boot at all, even remotely. The charging screen won't even appear. I'm going crazy. I've tried to remove the battery then return it, to no avail it won't work. I really don't think it's a battery issue. Can anyone help?
(Btw, I've been following random YouTube videos whose links I've not saved, and some random pages. Also, I'm not sure with my carrier, but I'm more confident that it's Globe.)
Are you install stock rom to your device through odin?
Sent from my SHV-E210S using Tapatalk

TWRP Bootloop (SM-J327P)

I've been stressed out lately about trying to root my Samsung Galaxy J3 Emerge.
I got TWRP 3.1.0-0 and went on install but the supersu 2.82 zip file wasn't showing so I tried to fix it.
First I tried Format Data and that didn't work, then I tried Changing File System for System, Data, and Cache one by one and that seemed to have worked. The supersu file showed and I installed it.
Then I Rebooted System and it said,"No OS Installed! Are you sure you wish to reboot?" and this has happened to me before so I figured it would reboot back into TWRP and I would have to boot to download mode, and install the firmware through Odin, but that didn't happen, what happened instead was when I Rebooted System, on the top right it said,"kernal is not seandroid enforcing, set warrenty bit:kernal" and would keep bootlooping, I went back into TWRP by taking the battery out and putting it back in then holding power, home, and volume up and I was back in TWRP.
The thing is it would keep doing this and I'm kinda stuck right now tbh. I already tried Formatting Data, Flashing a ROM, and installing the SM-J327P Firmware, but nothing worked. I'm guessing the only way to fix this is by changing back to my original File Systems and then installing the Firmware through Odin, but I'm stupid and don't remember the original File Systems. So if any of you could tell me the default File System for System, Data, and Cache or another way to fix this that would be great. Thanks
I'm still stuck in this situation...
Any help plz?
IYaWonaRoo said:
I've been stressed out lately about trying to root my Samsung Galaxy J3 Emerge.
I got TWRP 3.1.0-0 and went on install but the supersu 2.82 zip file wasn't showing so I tried to fix it.
First I tried Format Data and that didn't work, then I tried Changing File System for System, Data, and Cache one by one and that seemed to have worked. The supersu file showed and I installed it.
Then I Rebooted System and it said,"No OS Installed! Are you sure you wish to reboot?" and this has happened to me before so I figured it would reboot back into TWRP and I would have to boot to download mode, and install the firmware through Odin, but that didn't happen, what happened instead was when I Rebooted System, on the top right it said,"kernal is not seandroid enforcing, set warrenty bit:kernal" and would keep bootlooping, I went back into TWRP by taking the battery out and putting it back in then holding power, home, and volume up and I was back in TWRP.
The thing is it would keep doing this and I'm kinda stuck right now tbh. I already tried Formatting Data, Flashing a ROM, and installing the SM-J327P Firmware, but nothing worked. I'm guessing the only way to fix this is by changing back to my original File Systems and then installing the Firmware through Odin, but I'm stupid and don't remember the original File Systems. So if any of you could tell me the default File System for System, Data, and Cache or another way to fix this that would be great. Thanks
Click to expand...
Click to collapse
You have to use the getprop command to get your software number. Then you have to restore that EXACT software. You might have probably updated unknowingly, and the bootloader updated too. So restoring to an older firmware might bootloop. It was a huge pain in the butt to get mines working after this issue but I got it right after a few tries. I flashed the custom J327p rom they made for it, factory reset and just waited until it booted. Was a long time but after trying every restore and refreshing, I got it working. There's the newest firmware out (idk the name since I just have the metro version of this phone now) but only that one will get the phone running. If you ever do get it running, root with magisk as this phone is VERY sensitive to SU and won't work half the time
savagevegeta said:
You have to use the getprop command to get your software number. Then you have to restore that EXACT software. You might have probably updated unknowingly, and the bootloader updated too. So restoring to an older firmware might bootloop. It was a huge pain in the butt to get mines working after this issue but I got it right after a few tries. I flashed the custom J327p rom they made for it, factory reset and just waited until it booted. Was a long time but after trying every restore and refreshing, I got it working. There's the newest firmware out (idk the name since I just have the metro version of this phone now) but only that one will get the phone running. If you ever do get it running, root with magisk as this phone is VERY sensitive to SU and won't work half the time
Click to expand...
Click to collapse
Thanks for the reply but I have tried restoring with a firmware with my exact software number, model, version, changelist, build date, country/carrier(sprint), and security patch level and I did a format data, yet It didn't work... As far as I know, the bootloop was not caused by the firmware, it was caused by me manually changing the Partitions' File Systems, however I do not remember the original File Systems for the partitions. In case this madders, the way I changed it was by pressing "Wipe" in TWRP, then "Advanced Wipe", then selecting "System", then "Repair or Change File System", then "Change File System", and choosing a random button. I also selected "Data" and "Cache" but I did it individually, one at a time.
IYaWonaRoo said:
Thanks for the reply but I have tried restoring with a firmware with my exact software number, model, version, changelist, build date, country/carrier(sprint), and security patch level and I did a format data, yet It didn't work... As far as I know, the bootloop was not caused by the firmware, it was caused by me manually changing the Partitions' File Systems, however I do not remember the original File Systems for the partitions. In case this madders, the way I changed it was by pressing "Wipe" in TWRP, then "Advanced Wipe", then selecting "System", then "Repair or Change File System", then "Change File System", and choosing a random button. I also selected "Data" and "Cache" but I did it individually, one at a time.
Click to expand...
Click to collapse
That's a tough one. I've never touched those options in TWRP. Have you used Odin to completely wipe the phone from everything including TWRP and flashing stock?
savagevegeta said:
That's a tough one. I've never touched those options in TWRP. Have you used Odin to completely wipe the phone from everything including TWRP and flashing stock?
Click to expand...
Click to collapse
I do have a brother that has the EXACT same phone as me so I tried installing TWRP on his phone and checking the original File Systems, however TWRP doesn't install on his phone for some reason. I enabled developer options, USB debugging, OEM, and installed the drivers and when I install TWRP recovery on his phone through odin it says it was successful but for some reason when I boot into the bootloader it's the regular one that comes with the phone and not TWRP. I'm guessing this is because he has low storage (95% used up). But he doesn't cooperate with me and says he doesn't want the TWRP on his phone because virus blah blah idk (and I don't know how to remove it without factory reset, which he doesn't want to do even though he can backup his stuff) also doesn't want to delete or free up storage from his phone. So I'm going to try wiping my phone through odin i guess...
IYaWonaRoo said:
I do have a brother that has the EXACT same phone as me so I tried installing TWRP on his phone and checking the original File Systems, however TWRP doesn't install on his phone for some reason. I enabled developer options, USB debugging, OEM, and installed the drivers and when I install TWRP recovery on his phone through odin it says it was successful but for some reason when I boot into the bootloader it's the regular one that comes with the phone and not TWRP. I'm guessing this is because he has low storage (95% used up). But he doesn't cooperate with me and says he doesn't want the TWRP on his phone because virus blah blah idk (and I don't know how to remove it without factory reset, which he doesn't want to do even though he can backup his stuff) also doesn't want to delete or free up storage from his phone. So I'm going to try wiping my phone through odin i guess...
Click to expand...
Click to collapse
Storage space has nothing to do with flashing recoveries because they have their own partition. I suggest you flash the same TWRP you used on his phone, then as soon as it finishes flashing, boot into recovery IMMEDIATELY by pressing volume up, power, and home. do NOT let the device boot. If you screw up and it gets to the Samsung animation, flash again and try again. This is because some of the latest Android devices tend to restore recovery upon boot for some reason. Through my experience, anyways. Try this and let me know your results.
savagevegeta said:
Storage space has nothing to do with flashing recoveries because they have their own partition. I suggest you flash the same TWRP you used on his phone, then as soon as it finishes flashing, boot into recovery IMMEDIATELY by pressing volume up, power, and home. do NOT let the device boot. If you screw up and it gets to the Samsung animation, flash again and try again. This is because some of the latest Android devices tend to restore recovery upon boot for some reason. Through my experience, anyways. Try this and let me know your results.
Click to expand...
Click to collapse
Ok. It worked and my phone is back, the problem is now my brothers phone keeps popping up a message on his home screen saying, "Unfortunately, TouchWiz home has stopped.", and "Unfortunately, Google Services Framework has stopped", and other messages over and over and he can't do anything after installing TWRP. I've tried rebooting, and force stopping and clearing cache of Google Services and TouchWiz but nothing worked
IYaWonaRoo said:
Ok. It worked and my phone is back, the problem is now my brothers phone keeps popping up a message on his home screen saying, "Unfortunately, TouchWiz home has stopped.", and "Unfortunately, Google Services Framework has stopped", and other messages over and over and he can't do anything after installing TWRP. I've tried rebooting, and force stopping and clearing cache of Google Services and TouchWiz but nothing worked
Click to expand...
Click to collapse
You have to factory reset. I don't know how you're gonna do it but that's the only way to get out of it otherwise you might have been doing something else other than installing TWRP and broke something. I suggest you restore to stock and try again. If you didn't make a back up, you might be bricked unless you flash the stock firmware with a computer
savagevegeta said:
You have to factory reset. I don't know how you're gonna do it but that's the only way to get out of it otherwise you might have been doing something else other than installing TWRP and broke something. I suggest you restore to stock and try again. If you didn't make a back up, you might be bricked unless you flash the stock firmware with a computer
Click to expand...
Click to collapse
Thank you so much for your help! My phone is back and luckily my brother had a backup so we fixed his phone and I rooted with Magisk which apparently I needed a micro SD card because my internal storage showed as 0mb and tried everything to fix it ,which is why I was in this mess in the first place, then I finally decided to buy an SD card and it worked!
IYaWonaRoo said:
Thank you so much for your help! My phone is back and luckily my brother had a backup so we fixed his phone and I rooted with Magisk which apparently I needed a micro SD card because my internal storage showed as 0mb and tried everything to fix it ,which is why I was in this mess in the first place, then I finally decided to buy an SD card and it worked!
Click to expand...
Click to collapse
The steps to fix storage 0mb are clearly posted in the TWRP thread.
ashyx said:
The steps to fix storage 0mb are clearly posted in the TWRP thread.
Click to expand...
Click to collapse
I have tried manually mounting, format data, wiping system, cache, and data one by one, changing the File Systems one by one, and alot more. NOTHING WORKED. However every youtube video that I have seen about rooting my exact phone with twrp, all had and used micro SD cards! I tried avoiding buying one but every time I try to fix it any other way it ends up either not doing anything or screwing up my device. Once savagevegeta helped me out of the mess I caused by trying to fix the 0mb I decided screw it, no other method worked so might as well try buying a SD card, and guess what happened, IT WORKED! And I realized why every single guide and yt video used micro SD cards for my model.
IYaWonaRoo said:
I have tried manually mounting, format data, wiping system, cache, and data one by one, changing the File Systems one by one, and alot more. NOTHING WORKED. However every youtube video that I have seen about rooting my exact phone with twrp, all had and used micro SD cards! I tried avoiding buying one but every time I try to fix it any other way it ends up either not doing anything or screwing up my device. Once savagevegeta helped me out of the mess I caused by trying to fix the 0mb I decided screw it, no other method worked so might as well try buying a SD card, and guess what happened, IT WORKED! And I realized why every single guide and yt video used micro SD cards for my model.
Click to expand...
Click to collapse
I guarantee you're doing it incorrectly. See my TWRP thread for correct instructions to mount data.
ashyx said:
I guarantee you're doing it incorrectly. See my TWRP thread for correct instructions to mount data.
Click to expand...
Click to collapse
I probably was doing it wrong lol. But its fixed now so dont worry
IYaWonaRoo said:
I probably was doing it wrong lol. But its fixed now so dont worry
Click to expand...
Click to collapse
Your data partition will still be unmountable and remain 0mb, which means you are unable to make a backup.
However if you're happy with it in that state...
Re: bootloop
have you tried grabbing the no verity/encrypt form the rooting forum, this solves seandroid problem

S7 G930FD TWRP Bootloop - please help

Objective: I am hoping to be able to boot my existing system to recover data such as SMS, call logs, app data, and so on - obviously it was inadvisable to start messing around without backing up my data, particular with my amateurish capabilities. But that's the situation I am in. For some reason I thought that just replacing the Recovery was not going to risk my data. Its been over 5 years since the days when I would regularly flash my new phones with cyanogenmod, and my abilities were very basic even then.
Context: G930FD with stock rom, baseband ETC? - apparently for Dubai, which does not allow VoLTE or WiFi calling, which is what I was trying to fix when I got myself into this.
the Events:
- I enabled ADB and used Heimdall on Windows 7 to flash twrp-3.3.1-0-herolte.img
- initial attempts failed to complete download. I booted back into the system and applied OEM Unlock. Flashed successfully.
- chose the 'allow modification' option or whatever it says, not the Read-only option
- I did NOT check at that point to see if the system would reboot properly. I instead right away made a full back-up to my external SD.
That's all I did. After the back-up was complete I rebooted, and arrived at "SAMSUNG Galaxy S7" endless boot loop.
best guess: this is related to samsung encryption? TWRP file manager says that DATA is 0MB.
Again, I am desperately hoping that someone can help me recover my existing system. The threads I found on this subject all lead to wiping the phone and flashing a new rom.
thanks.
digging in deepr
I went ahead and rooted by loading SuperSU otg through TWRP.
Now I get passed the first splash screen that was previously boot looping (Galaxy S7, powered by Android), and I get to the 2nd splash screen (glowing SAMSUNG logo). It does not boot loop, just glows in and out endlessly and never loads.
Is that progress? Or maybe its worse.
t.krug said:
I went ahead and rooted by loading SuperSU otg through TWRP.
Now I get passed the first splash screen that was previously boot looping (Galaxy S7, powered by Android), and I get to the 2nd splash screen (glowing SAMSUNG logo). It does not boot loop, just glows in and out endlessly and never loads.
Is that progress? Or maybe its worse.
Click to expand...
Click to collapse
Reflash TWRP with Odin, boot TWRP, wipe cache, reboot.
Thanks.
I think greenman at sammobile had the answer --> NEW: S7 5 file firmware options (this forum wont let me post a link).
But I botched the execution and the CSC file overwrote my data. Crushing blow. I would say lesson learned, except that I already knew better and risked my data anyway. Sad.
I have a backup I made at the first launch of TWRP - but I assume its worthless since TWRP was not reading the encryption. Its only 3.7GB.
Side note - I did achieve the original goal of replacing the Emirati rom with one that activates WiFi calling and VoLTE.
Has this issue been solved?
I never recovered my data if that's what you mean. Did you look up greenman at sammobile? It sounds like someone followed his directions and was able to flash just the system files without overwriting their data. I think you had to modify the csc_home file. It was a bit beyond my skill level.
Oh, I was just wondering if your phone was still bricked. I didn't read your last message properly before replying lol. My bad.
I'm not personally having issues with a device, I was just curious if I could help at all.

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