Develop Bugs

[Q] gnex boot loop!

hey everyone! new to the forum. needed help bad.
i have been running CM 10.2.0 for awhile now, pretty much since it was released without any issues. yesterday for whatever reason while surfing the net my phone restarted. now it keeps restarting every 15-20 secs. my main concern at this point is saving my photos before i reset my phone and start from scratch. any ideas as to how to back up photos?
some notes on my rebooting condition.:
phone keeps rebooting even when booted up in safe mode.
-in safe mode i do have more time before it reboots itself
phone does not reboot itself when in bootloader mode or recovery mode
i tried to back up to sdcard while in recovery mode but it fails when it tries to back up data. i also tried using nexus root toolkit but to no avail.
any help would be much appreciated. feels weird to not have a phone.lol. thanks in advance

lilzed_747 said:
hey everyone! new to the forum. needed help bad.
i have been running CM 10.2.0 for awhile now, pretty much since it was released without any issues. yesterday for whatever reason while surfing the net my phone restarted. now it keeps restarting every 15-20 secs. my main concern at this point is saving my photos before i reset my phone and start from scratch. any ideas as to how to back up photos?
some notes on my rebooting condition.:
phone keeps rebooting even when booted up in safe mode.
-in safe mode i do have more time before it reboots itself
phone does not reboot itself when in bootloader mode or recovery mode
i tried to back up to sdcard while in recovery mode but it fails when it tries to back up data. i also tried using nexus root toolkit but to no avail.
any help would be much appreciated. feels weird to not have a phone.lol. thanks in advance
Click to expand...
Click to collapse
Hate when a rom just goes bad for some reason.. Could you supply the error messages you get when your backup fails? I'm guessing it might have to do with file names having weird symbols. Also you might want to backup different folders of your sdcard at a time to avoid failure; i.e., "adb pull /sdcard/Download <some_directory_on_computer>".

7175 said:
Hate when a rom just goes bad for some reason.. Could you supply the error messages you get when your backup fails? I'm guessing it might have to do with file names having weird symbols. Also you might want to backup different folders of your sdcard at a time to avoid failure; i.e., "adb pull /sdcard/Download <some_directory_on_computer>".
Click to expand...
Click to collapse
thanks for the reply. system backup finishes then it goes to back up data. after while it says that there's an error making backup image of /data
is it possible to just to use command prompt to just pull my pictures? would it just be adb pull /sdcard/dcim <some directory>?
also for some reason i am unable to communicate with my phone using adb prompts. yesterday i typed in adb devices and my phones serial number would come up as connected. today under "list of devices" its just blank....not sure what to do.

UPDATE: i was able to get my pictures off of my phone. i launched CMD through the nexus toolkit and it seemed to detect my phone.
i flashed my phone back to stock using the toolkit. for some reason after everything was said and done my phone wasnt actually set back to stock. my phone still has all my apps etc. it still restarts every few seconds.
i tried a couple force flashes using the toolkit again but still same phone. nothing has changed or been fixed. not really sure what my next plan of attack should be. any guidance is very much appreciated.

lilzed_747 said:
UPDATE: i was able to get my pictures off of my phone. i launched CMD through the nexus toolkit and it seemed to detect my phone.
i flashed my phone back to stock using the toolkit. for some reason after everything was said and done my phone wasnt actually set back to stock. my phone still has all my apps etc. it still restarts every few seconds.
i tried a couple force flashes using the toolkit again but still same phone. nothing has changed or been fixed. not really sure what my next plan of attack should be. any guidance is very much appreciated.
Click to expand...
Click to collapse
Glad to hear you got your pictures off. As far as wiping your phone. If you got everything off your sdcard that you want, you can do a fastboot wipe.
-press volume up + volume down + power to get to fastboot mode
-connect the phone to your computer and enter in the command window "fastboot devices" to see if it's connected
-enter "fastboot -w" to do a full erasure of the phone's /data partition
Then use nexus toolkit, recovery, or fastboot to flash a new rom from there. This has saved me in the past in a similar situation. Definitely make sure you have everything off your sdcard you want to keep before trying this though.

7175 said:
Glad to hear you got your pictures off. As far as wiping your phone. If you got everything off your sdcard that you want, you can do a fastboot wipe.
-press volume up + volume down + power to get to fastboot mode
-connect the phone to your computer and enter in the command window "fastboot devices" to see if it's connected
-enter "fastboot -w" to do a full erasure of the phone's /data partition
Then use nexus toolkit, recovery, or fastboot to flash a new rom from there. This has saved me in the past in a similar situation. Definitely make sure you have everything off your sdcard you want to keep before trying this though.
Click to expand...
Click to collapse
thanks so much for the help so far. unfortunately everything you have told me so far has not worked.lol. i followed the steps like u said but the phone just stays on the "google" screen after i install a stock rom. left for 2.5 hours in hopes of it doing its thing.lol. had to pull battery and start it up. nothing changed, phone still restarts i also tried using toolkit to flash stock + unroot (both in bricked mode and normal mode), flashed zip stock images and installing in recovery mode. i also used CMD to push stock images to my phone and installing but still nothing.
i also followed the instructions extactly on this forum http://forum.xda-developers.com/showpost.php?p=34552123&postcount=1
all of the steps successfully completed but after a reboot my phone was left unchanged.
i may have screwed up my description of the problem earlier. the phone restarts after my phone stop responding/freezes. i also find that there almost always is a program that stops working. i find handcent sms is having the most errors. tried to uninstall but phone freezes. tried in fastboot/adb but nothing happens.
thanks again for the help so far.

Nexus 5X Superbricked

I was just using my phone normally, then it hung and wouldn't restart normally. Bootloader and fastboot is accessible, but attempting to boot into system or recovery just puts me in a black screen. Connecting it to a computer via USB in that state gives me a "Qualcomm HS-USB QDLoader 9008 (COM3)" device, which from what I read, indicates that my device is superbricked.
My phone:
Nexus 5X LGH791 32GB
Bootloader version: BHZ10i
Build version: MDA89E
Device is unlocked and rooted
Have not flashed anything new in at least a month
What I've tried:
1) fastboot boot twrp-3.0.2-0-bullhead.img:
Note: Each session does not last more than 10-15 seconds, even if I don't do anything and leave it at the password entry. The phone then goes into the same black screen state.
Phone boots into TWRP, but upon trying to decrypt the filesystem, i see "Failed to mount system/cache" messages.
2) Using LGUP (http://forum.xda-developers.com/nexus-5x/help/req-help-to-unbrick-t3251740):
LGUP detects and communicates with the phone fine, but the phone hangs midway while doing the update (goes into the same black screen state). It always hangs at about 15-21% progress, at the "system" step.
3) fastboot flash from factory image
All the flashing succeeds, but the phone still cannot boot normally.
My own conclusion:
There's some storage hardware issue, and all my data is lost. I would just like to check if I have exhausted all my options, though. Even if the phone can't be saved, is there anything I can do to retrieve the data in the phone?

Your conclusion is probably correct.
Sometimes EMMC errors eventually work themselves out enough to boot if you attempt enough times for the bad areas to get remapped, but often the damage is too catastrophic to remap.
You are going to need to RMA your device regardless because you can't trust a phone that has that severe of EMMC problem even if you eventually got it to boot again.

Problem with booting G4

Hello, I would like to first tell you the story my LG G4 has gone through and then I tell you the error.
So, at first my phone was working absolutely properly. I accidentally deleted some pictures and to do a recovery, I had to root it. And rooting would be useful for later so why not do it?
So I first unlocked the bootloader through the code from the LG site. After unlocking, the phone reset (because it would be just too good to make some memory changes and nothing more.) But allright. Then I was ready to root. I just booted the phone, everything was fine. I unlocked the developer mode and opened ADB. I rebooted to recovery through
Code:
adb reboot recovery
I was expecting to see some menu with buttons (but that would be just too good). However, I saw just android with a red triangle in the middle. Nothing more. No response to buttons, nothing.
So I thought. Allright, let's boot into recovery using hardware buttons (vol down + power) at startup. Unfortunatelly, it seemed like there is no such mode System just normally booted (and that was just after bootloader unlocking. Recovery mode goodbye.).
I tried to send commands to the phone using diagnostic port. Unfortunately, it responded by FAIL to every command.
I reboot to bootloader and booted an image: "boot-em.img" (from here: google: how-to-root-lg-g4-on-android-6-0-marshmallow-20a20b-firmware. I'm a newbie here. thx for understanding.)
After that the console uploaded the image and booted successfully. Then, however, system started to boot up and was endlessly booting (LG boot animation) till the battery was critical.
I was able to access the EMI number through volume-down button and volume-up button pressed simultaneously.
I was also able to access some factory-reset dialog by holding volume-down and pressing power-button several times. I choosed to reset everything and then accepted it with one more 'are you sure dialog'. System rebooted and was stucked in the LG boot animation.
Then I got to download mode, since recovery mode was lost in hell. Through LG-UP I flashed the original KDZ firmware and everything got back to normal, but recovery mode was still inaccessible through the hardware buttons. I got through the process of setting everything up, getting developer, rebooting to bootloader and I booted TWRP.
TWRP loaded and it responded to double-tap on screen to wake it up. I just checked the menus and let the phone sleep.
After several hours I went back to the phone and double-tapped on display. Nothing. Phone was not responding. I pressed the power button and the phone restarted (I think. It either restarted into the system or was not responding to power button.)
So I got to the system and again rebooted to the TWRP (through fast-boot). I tried to back-up one partition to the disk. During the process phone had turned the display off. So I double tapped. Nothing. I removed the SD card and the phone woke, saying that back-up process was not able to complete. Suddenly it stopped responding to double-tap. It woke up through an interrupt. I re-inserted the card, successfully backed-up the partition to the SD-card and I left the phone laying on the bed plugged in the charger. It stayed that way for 4 hours or so, doing nothing. All of a sudden, a yellow screen was there, (and that's a screen of absolute death that was never supposed to come. Little I knew.) saying that an unexpected critical error happened and to do a memory dump, insert a cable, set up some communication (I don't remember what it was, didn't take a picture of it.) and it could send the memory dump to PC or somewhere. I thought to myself. So, the application is not so stable after all. It said that to reboot just press the power button or something.
And now the problem comes:
The first start: Bootloader booted, LG animation went on and finished. The starting up apps dialog came rolling. Then, system restarted.
The restart: Bootloader booted, LG animation went on and freezed. Then, the phone restarted.
Second restart: The same thing as the first one.
Fourth restart up till now: Bootloader tries to boot and restarts before the LG animation.
I got to download mode and it restarted even there. After re-inserting the batterry I can sometimes get to the Firmware Update window and communicate. There I flashed the official firmware again.
No success, as if I didn't even do it. It restarts before the animation.
Can I do anything with the phone? Hopefully I can. No hardware problem occured (except for a situation where the error could fry the wires inside the mighty System On Chip.)
For the software state I cannot even tell but I might say it's cooked just wrong. That's why I came here.
I know I did some pretty stupid steps. But the error was not done by me. It worked fine and after the yellow screen which came by itself, it just (some bad words).
Thanks for replies.
Phone: LG-G4 H815, European market

Solution
So, I was looking around and believe it or not, this problem disconnected the pins on the motherboard's snapdragon 808.
I think this happened: The device, although it was heated many times during its life, it withstood that so far.
However, a longer run of the TWRP had finished it off. Memory got disconnected while running and it threw a yellow-screen.
Pins got disconnected and from then on it was just a standard common LG bootloop issue.
The continuous process of dying (First it partially loaded, then only animation, then nothing) is explained by this fact that the pins were so-so there and a couple of reboots just got it totaled.
Temporary fix:
Pre-heated the memory chip to 250°C using Hot-Air gun. After 18 seconds at this temperature I pressed the memory on top of the snapdragon down to the board while cooling.
Then I added a little metal square on the metal part that is covering the system on chip. This part is over the SOC where before there was just some tape.
This can work for several days in sleep mode or a couple of 'heat-demanding' operations on the phone.
Permanent solution should be to reball the memory chip on the snapdragon. That's my next step.

T-Mobile S8+ [G955U] -- Factory reset resulted in complete wipe & no longer boots up.

T-Mobile S8+ [G955U] -- Factory reset resulted in complete wipe & no longer boots up.
I have a Samsung galaxy S8 plus (T-Mobile) [SM-G955U]
Current Firmware:
G955USQU4CRE9
I'm using windows 7 to attempt to repair my phone.
My problem is as follows...
A few weeks ago my phone started giving me the dreaded:
"Unauthorized actions have been detected..."
error code and sending my phone to restart.
This has happened to me in the past on other phones so i thought, ok. restart and it should be fine. However, this kept happening... the next day and on the 3rd day it happened about 3 times in a row. At this point I was cautious and backed up all my files, turned on USB debugging and shut off my wifi & data.
I then proceeded to do a factory reset from the settings. Once it restarted I got a weird error stating something like no such recovery file could be found. When I saw this I knew I messed up because I didn't first take a backup of my system & recovery...
I got a hold of T-Mobile who walked me through their reset steps, none of which worked. They had me contact Samsung and I did but to no avail. Simply stated they mentioned they could fix it if I had warranty, if not I would have to pay for repair.
Either way I sent all information to Samsung and they have not gotten back to me even though they mentioned we'd hear back in 48 hours. (it's been about a week) I've tried to reach out since then but I haven't had a lot of time to sit on the phone with their elevator music...
Ever since then I've tried everything from Samsung Smart Switch to re-flashing through Odin with no luck.
I've tried all of the reset options...
Hard reset
Soft reset
Wipe cache (recovery mode)
Wipe and factory reset (recovery mode)
Simulated battery pull
etc., etc., etc.
Nothing works. Odin flashes correctly (i get "PASS") and the phone turns off but does not turn back on.
I've tried several tricks to get it to turn back on but it won't go past the boot screen (Samsung Galaxy S8+ screen)
I've flashed, re-flashed, wiped, reset, etc.
Now smartswitch doesn't even work on it because it does not recognize the device...
When i connect my phone now it just shows up as the qualcomm chip. I get "Qualcomm HS-USB QDLoader 9008" under devices...
ADB only works when it's in download mode or recovery mode but it doesn't recognize the device either...
Another problem is the increased time it takes to get into the boot menus (download or recovery).
Sometimes when I haven't touched my phone for a whole day I can get into download mode within 10 seconds or less but the more I try it and especially if I successfully flash stock software, the next time booting into recovery or download mode can take up to 5 minutes (holding the button combination). Recovery mode is worse.. even after 24 hours without touching the phone it will come up maybe in 3 minutes but has taken as long as 7 minutes... my fingers are in pain.
Essentially, even after successfully flashing my phone will not boot. and when i hold vol_down + power i can sometimes get the boot screen but it won't go past that.
Also, None of the above boot options work if my phone isn't connected to power--these options only work when it's plugged in. If my phone is not plugged in it will not vibrate, light up, boot up, or do anything other than behave as a paperweight.
I believed it may have been a charging issue so i left it plugged in overnight and even went to download mode and plugged it in for a few hours but that doesn't affect it at all. Even if i'm in download or recovery mode it'll turn off right when i unplug the device.
I'm trying to get it to the best buy that's approved for samsung repair but when I called they said they wouldn't repair it anyways because i didn't buy it there... -_-
Please let me know if I need to provide any other information. I'm trying to get an image of the recovery screen so you can see the error it gives me... Something about no file found. This is increasingly difficult though because some times it takes too long to get into these modes and I leave it alone and come back to it later.
Has this happened to anyone else? Can someone provide some sort of advice or a method to fix this?
thanks in advance.

Can you download the Qualcomm HS-USB QDLoader 9008 driver, and then see if you can fastboot oem-unlock and see if it unlocks your bootloader

[UNBRICKED] Data Recovery For Soft-Bricked OnePlus 5T

I'm really anxious and nervous about this so I'll simplify this as much as I can; recently my phone was turned on on top of my desk and randomly restarted. I thought little of it, as it quickly went through the OnePlus logo (it began to take longer the second time I restarted it) and Android splash screen, but then stopped on the circles animation and remained looping there. I have very important data on it that I'd like to recover and WILL NOT factory reset (flash) my phone.
The battery icon and percentage still show up when I plug in the device. I still have access to Recovery Mode, Fastboot, and Sideload through their key shortcuts. I previously had USB Debugging enabled but can't authorize ADB since I can't check the confirmation dialogue box (shows up as "unauthorized" in command prompt). I had very little storage (less than 250mB) for the last few days. I don't have root access, custom recovery, or an unlocked bootloader.
I already tried clearing my cache; if I restart after doing so it only takes a few seconds to pass the OnePlus logo as opposed to the ~20 seconds it previously took. This delay raises every few restarts. I've tried waiting many hours to see if anything would happen or if ADB would start functioning. I also tried fully draining my battery overnight and nothing happened. My files are not deleted/fully corrupt since I could still see them when flashing through internal storage from Recovery Mode. OnePlus chat support said I have to flash my phone and Twitter support refused to respond. Local data recovery centers said I could get my phone shipped to them for a free diagnostic, should I do so or is there a way to unbrick or recover my data at home?
Is there anything I can do? Thank you very much!... for now I'll just remain depressed...
TL;DR - My phone's stuck at the circles boot animation and I want to recover my files or fix the soft-brick without resetting. I don't have root access, custom recovery, or an unlocked bootloader.

UPDATE: I boot into Recovery Mode and "Reset System Settings"- my phone rebooted with 112 gigabytes of storage already taken up and all of my Android/data folders empty! I lost very little as I set my save folders to other locations! It looks like the error was not having enough storage! OnePlus chat support said that I had to factory reset my phone, DO NOT listen to them! MY PHONE IS UNBRICKED!
Check out other responses:
https://www.reddit.com/r/Oneplus5T/comments/ahfabg/data_recovery_for_softbricked_oneplus_5t/
https://forums.oneplus.com/threads/data-recovery-for-soft-bricked-oneplus-5t.986096