Phone hangs in boot - Android Q&A, Help & Troubleshooting

Samsung sgh-i537 (S4 Active AT&T) 4.4.2 NE3, no root, app store apps only.
Was listening to iheart when phone rebooted sorta. Get ATT logo, plays noise, heats up. That's it.
I would like to recover a few data files before reseting phone.
Is it possible to:
A. use odin to reflash current os or c6,7 ota with out a system wipe?
B. Access via adb to copy/backup files either thru reovery mode or download(odin) mode.
I thought restoring system might fix but have no way of knowing what is wrong other than it don;t work.
Saw an article where an s3 was accessed by adb using clockwork recovery usb debug. I cannot find an image to flash and all indications are the load will fail. TWRP have usb debug? any others that might work. No real fears on bricking bricked phone at this point.
Thanx for your time.

Related

[Q] Clarification about flashing roms with Odin

Are there certain types of ROMs or options in ODIN that would prevent pictures taken with the Vibrant from being wiped in the process?
My specific issue:
I uninstalled Google Maps after having some issues with it. After rebooting the screen goes into the boot cycle with the Samsung logo. The screen then turns black and the phone alternates vibrating with 1 vibrate and 3 vibrates with pauses between the two patterns
I can get to the download screen on the Vibrant, I have Odin installed and it recognizes my phone when it is in download mode. I have also installed ADB but it does not seem to recognize my phone.
My wife has a years worth of pictures and videos on the phone which I have not backed up. Is there a way to use ODIN to flash a ROM without deleting the pictures?
I read through the noob articles, but have not seen where it indicates that pictures will be deleted.
Thanks in advance,
Jason
Phone:
Vibrant phone (TMobile)
Froyo via Kies
debug mode enabled
not rooted
sim is not unlocked.
I guess this has been answered previously but I'll save you some time, based on my experience... I flashed ODIN to stock from a custom froyo ROM and all my pictures (actually all the files I added) were left intact. I even checked the repartition box on odin.
Now my question is. If that info is so important why don't you do a backup? there's always something that can go wrong when flashing.
I'm sorry, but I have to say it...
ALWAYS, do a backup before doing anything to your phone.
Secondly, ODIN shouldn't do anything to your internal or external memory... so your photos should be intact, but no promises.
Lastly, there's one thing you should know about the Vibrant...
the ONLY way you are going to hurt the thing, is by throwing it under a truck.
I have down countless things where I thought I bricked it, but it's always been fixable.
If you're trying to get into download mode, open your command prompt and cd to the tools directory of your android-sdk, and type in the following command;
Code:
adb reboot download
That should get you into download mode, and you can continue with ODIN.
Good luck
odin doesnt mess with ur internal memory
Thanks! Sorry if this was a repost, I had searched the forums and had not found it yet.
If there is some way for me to do a backup I would certainly do it. Currently I can not boot the phone all the way up (black screen after Samsung logo). When I plug in the usb cable, windows will not show it as an available drive for me to copy the files over. The only thing that seems to recognize it is Odin when the phone is in download mode.
In the future I will certainly start using Titanium or nandroid for backups.
Are the odin stock files "T959UVJFD.tar" and "s1_odin_20100512.rar" (PID) from http://forum.xda-developers.com/showthread.php?t=848737
Is there some other way to do the backup with my phone stuck in the boot cycle? I would love to do that first.
Thanks,
Jason
go here for odin link:
power off phone
pull out battery
GRAB THIS STUFF : http://forum.xda-developers.com/showthread.php?t=1047087
turn on odin
attach phone to pc with usb cable
now while holding down both volume buttons put battery back in.
now you should be in download mode and go back to stock with odin from here!
make sure u put the proper .pit and .pda file in there proper places on odin and ur set to go.
Enjoy and also make sure u have the proper samsung drivers
Flashing with odin is perfectly safe unless you check the PHONE EFS CLEAR or in One Click options MASTER CLEAR. I'm a bit of a flash nut so I can say that I'm sure you'll be fine. I've never lost anything
Thanks to all. It flashed successfully, phone works, and I still have the pictures.
THANKS!!!

Samsung S3 Boot Loop Data Recovery

I have re-flashed the phone with a stock version (I never did any flashing/rooting before this, but have on a previous phone so I know how). I would just factory reset, but I NEED the videos I recorded today. Is there a way to pull files without booting (I can get recovery and download modes, no option is available for mounting the USB connection like I have read about). It is not in developer mode, and I don't think it would matter if it was because I can't boot past app loading (to my belief). When I flashed the device, it loaded and started "upgrading android" upon completion is said starting apps and then rebooted. If I can't pull files can I remove 3rd party apps.

[Q] Stuck in boot loop, exhausted almost all optons

LG Escape running 4.1.2
here is the progression of events:
1. rooted device
2. root seemed successful and no malfunctions
3. backed up all apps and system data with Titanium backup
4. the lg escape has no way to unlock the bootloader, so I tried various other methods. one of which was entering recovery mode via terminal commands. this is basically a hard reset, and it wiped all my data
5. I restored all my apps and data from my external sd card with titanium
My best guess is this is where something went wrong
6. upon restoration it prompted me to reboot the device
7. reboot passes manufacturer logo, but resets when AT$T logo appears
8. as stated earlier, there is no way to enter recovery mode during boot.
9. there is a hard reset during boot, but mine will not work, as it requires touching buttons which do not seem to be active in my stage of the boot sequence
so, I understand this does NOT mean my phone is bricked, but I don't know how else to get it to boot back up, or what is even causing the boot loop, as I DO NOT HAVE ANY CUSTOM ROMS flashed. any help here is very appreciated!
EDIT: so I have attempted to use adb on my pc to reboot into recovery from there, but it occurred to me that while I was in recovery the first time, I never checked "usb debugging". as a result my adb console commands cant even see my device. any way to turn on usb debugging while locked in a boot loop?
also, I can get it to enter download mode. I was hoping I could just reflash the firmware to it without needing to enable usb debugging, but have no clue how to do that while locked out of the phone.
I realize this is a very specialized set of questions, but it is necessary to ask here as the most people will see it. im open to any ideas
whitechameleon said:
LG Escape running 4.1.2
here is the progression of events:
1. rooted device
2. root seemed successful and no malfunctions
3. backed up all apps and system data with Titanium backup
4. the lg escape has no way to unlock the bootloader, so I tried various other methods. one of which was entering recovery mode via terminal commands. this is basically a hard reset, and it wiped all my data
5. I restored all my apps and data from my external sd card with titanium
My best guess is this is where something went wrong
6. upon restoration it prompted me to reboot the device
7. reboot passes manufacturer logo, but resets when AT$T logo appears
8. as stated earlier, there is no way to enter recovery mode during boot.
9. there is a hard reset during boot, but mine will not work, as it requires touching buttons which do not seem to be active in my stage of the boot sequence
so, I understand this does NOT mean my phone is bricked, but I don't know how else to get it to boot back up, or what is even causing the boot loop, as I DO NOT HAVE ANY CUSTOM ROMS flashed. any help here is very appreciated!
EDIT: so I have attempted to use adb on my pc to reboot into recovery from there, but it occurred to me that while I was in recovery the first time, I never checked "usb debugging". as a result my adb console commands cant even see my device. any way to turn on usb debugging while locked in a boot loop?
also, I can get it to enter download mode. I was hoping I could just reflash the firmware to it without needing to enable usb debugging, but have no clue how to do that while locked out of the phone.
I realize this is a very specialized set of questions, but it is necessary to ask here as the most people will see it. im open to any ideas
Click to expand...
Click to collapse
i have now tried to flash the firmware while in download mode using a less than legitimately obtained lg R&D tool. however, i need V10F_00.kdz and i am facing a bit of censorship. any kind soul willing to host this file on dropbox or similar so i can download it?
Usually devices have a button combination to press when powering on to get into different modes. Maybe try searching for the button combination of your phone on Google? Try ' lg escape button recovery ' ?
J2270A said:
Usually devices have a button combination to press when powering on to get into different modes. Maybe try searching for the button combination of your phone on Google? Try ' lg escape button recovery ' ?
Click to expand...
Click to collapse
believe me i have. the only combo i can get to is download mode. there is a combo for a hard reset, but my touch buttons arent active during boot.

*URGENT* HELP! File pulling with ADB

To start off, I suffered, what seems to be a common problem, of the fingerprint unlock on Samsung Galaxy S6 Edge randomly being unable to recognise my fingerprint. Followed by my back-up password not being accepted. Unfortunately, I turned off my data and wifi before the phone locked so the problem doesn't seem to be able to resolve itself unless I Factory Reset the phone.
This i am happy to do as long as I can find some way to retrieve the media files from the phone (just pictures and videos). I read up and watched some videos where some people were able to use ADB through Recovery Mode or Field Test mode, and pull the files from the phone. These people however were using older models of Android phones but I decided to read numerous pages etc and go ahead and try.
I set up everything (I believe) i needed on my Mac Book pro in order to use the Adb Terminal. However when I tried to connect my phone Adb couldn't detect my device. I then decided (after reading somewhere to do so) to press "Apply update using ADB" on the Recovery menu. Again, Adb did not detect my device.
i left this screen up on my phone which resulted in "dm-verity verification failed..." appearing at the bottom of the screen. It then switched back to the Recovery menu and continues to show "dm-verity verification failed..." at the base of the screen. Now when I try and power up the phone normally, the start up screen just repeatedly flashes and it goes no further than that.
Im not completely brain dead when it comes to this stuff but I obviously don't fully understand what I am doing, So Im wondering if there is a genius out there who, even after what I've done, can help me pull the files from my phone before I have to Factory Reset!
The problem is, that you don't have the ability to use adb pull through the stock recovery. This kind of thing can only be done via a custom recovery like TWRP, CWM, or Philz. Now that it's not booting, pretty much the only thing to try is to install a custom recovery and boot directly into it before it tries to restart. Make sure you find one for the correct variant of your phone. If yours is a VZW or ATT version, you're in trouble because they don't have custom recoveries like that for them.

SM-G920W8 /efs fails to mount phone doesn't boot.

I was recently given an S6 from a friend who won it but already had one. I was excited to try and root it, foolish of me to think about maybe getting more information, and I attempted a CF-Autoroot. The root claimed, in Odin 10, to have succeeded. However, it fails to boot entirely. The grey android screen that flashes the word "erasing" as the loading bar progresses during firmware reboot makes it half way before restarting. Now I can boot into Odin mode, and I can boot into recovery. USB debugging was off at the time the phone started to act up so that's a no go. I have tried multiple times in restoring it to no avail. The phone recovery says "failed to mount /efs."
Odin mode said custom and then, after using kies to attempt a restore, would fail to complete and once again get stuck on SAMSUNG screen. If I Return to Odin mode I would notice that the system went back from custom to Samsung again, though the knox counter was still at 1.
I am able to load TWRP and occasionally manage to format and tweat partitions to mount the phone in recovery but can't transfer any files.
I have access to a USB OTG device that loads via mini usb port in the device. This phone has caused me a lot of grief and I Can't think of any way to recover it. Essentially I am left with a brand new device that is worthless. Is there anyone out there with experience recovering this error.
Also I am unable to obtain the lost emergency firmware recovery number.
Thank you in advance for all the time and efforts that I hope will be provided. I have spent many days on this device trying to simply make it work.
Regards, Desmond

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