Develop Bugs

Please Help Me

So after an unsuccessful ROM flash my phone was stuck at bootloader for quite sometime...i had a micro SD card reader and inserted it into multiple computers running XP, vista and ubuntu...they all registered that i had plugged something in but wouldn't show it as a disk drive...now i've already figured out how to access it but i put a new ROM image on it and tried to reflash but after the flash when my phone booted up it simply switched itself off... when i switched it back on it went back to the bootloader and tried to reflash the ROM. mid flash it just switches itself off... I realize that this is probably due to the charge level of the phone so i plugged it it but it will be off and charging then it will suddenly decide its got enough battery power and boot up to the bootloader screen until it dies again...how do i stop this vicious loop

tlglegacy said:
So after an unsuccessful ROM flash my phone was stuck at bootloader for quite sometime...i had a micro SD card reader and inserted it into multiple computers running XP, vista and ubuntu...they all registered that i had plugged something in but wouldn't show it as a disk drive...now i've already figured out how to access it but i put a new ROM image on it and tried to reflash but after the flash when my phone booted up it simply switched itself off... when i switched it back on it went back to the bootloader and tried to reflash the ROM. mid flash it just switches itself off... I realize that this is probably due to the charge level of the phone so i plugged it it but it will be off and charging then it will suddenly decide its got enough battery power and boot up to the bootloader screen until it dies again...how do i stop this vicious loop
Click to expand...
Click to collapse
Something worth trying:
1.You could take out the battery for one minute or longer.
2.Now put the ROM's .nbh on your SD card [Make sure it is named "RHODIMG.nbh" (no quotes)].
3.Put the SD card and battery in and press/hold Power button and the Volume Down button at the same time.
4.That'll put you in Bootloader Mode, and it should ask you if you want to update your phone's image (something like that).
5.Follow the prompts and it should start flashing (you'll see the bar).
6.Soft reset after the flash says it's complete.
I once went through that and this is what I did. I was able to unbrick my phone.
However, (back in September/October) there was another instance of the same thing happening to someone, but he never got it fixed; he did get the stock ROM and SPL back on it, but had to return it to HTC because it still kept cycling into Bootloader.
Good luck!

Critical BootLoop (No CWM Access/USB Unrecognized)

My Salutations, I am asking a question in regards to a serious bootloop I have managed to pull myself into.
Most bootloops I usually just enter CWM and flash another rom or restore. This problem however is much more serious.
Every time I attempt to enter CWM it goes directly to download mode. It's as if CWM doesn't exist on my phone anymore or something.
Download mode is the only thing I can access. I have tried multiple attempts to enter any other recovery mode but they all end up getting me to download mode.
This isn't the only problem. I thought this wouldn't be a big deal until I realized my PC can't recognize my phone at all anymore. Even before I got into the bootloop, my phone would only charge but any other recognition from the PC was absent. I have all the correct drivers installed including numerous attempts at re-installing, re-configuring, and restarting my PC.
I think I may have reached an irrecoverable error.
Any ideas would be much appreciated. Thanks.
FYI, The ROM I flashed when my Phone started acting like a bundle of ninnyhammerness was AOKP milestone 6. It's not the ROMs fault of course, seeing as how this ROM is very good. I also had the Darkside kernel. This is when I couldn't manually enter CWM. In stead, I had to let the phone boot up and utilizing the power menu, restart in recovery mode. I thought this was strange at first. I then wiped, and decided to flash the 20th Nightly of AOKP Jellybean just to try it. It booted fine, but then when I had to restart to enter CWM again I chose to flash another Darkside kernel. After this, my phone went into a bootloop. That is where everything else fell apart.

Sounds like either the recovery isn't sitting in the system correctly or its gone. When your phone is in download mode you said that you can't connect to pc. Are you running odin as admin and/or connecting the device to pc previous to putting the battery back?
sent from my T989 full of CM awesomeness and a touch of Venom from the Darkside!!

Yes I did run Odin as an administrator. I also tried connecting the device prior to putting the battery in, and also after.

I had this sort of problem yesterday (I installed a port of CWMR and it had some bugs which lead to it formatting the disk and then freezing and a reboot wouldn't allow me to install a rom...) anyways
1) Go to http://www.samsung.com/us/support/owners/product/SGH-T989ZKBTMB? and download the drivers for the phone. This will allow windows to recognize the phone, without the phone having to communicate to the computer.
2) Download Odin v 1.85 (that's what I used anyways)
3) Follow this guide: http://forum.xda-developers.com/showthread.php?t=1481141 It'll give you a workable CWMR to allow a format and installation of a rom to stop the boot loop
Those three steps should solve the problem, it did for me at least.
Hope that helps!

kmcclry said:
I had this sort of problem yesterday (I installed a port of CWMR and it had some bugs which lead to it formatting the disk and then freezing and a reboot wouldn't allow me to install a rom...) anyways
1) Go to http://www.samsung.com/us/support/owners/product/SGH-T989ZKBTMB? and download the drivers for the phone. This will allow windows to recognize the phone, without the phone having to communicate to the computer.
2) Download Odin v 1.85 (that's what I used anyways)
3) Follow this guide: http://forum.xda-developers.com/showthread.php?t=1481141 It'll give you a workable CWMR to allow a format and installation of a rom to stop the boot loop
Those three steps should solve the problem, it did for me at least.
Hope that helps!
Click to expand...
Click to collapse
Thanks but, it still hasn't worked. It keep saying "USB device not recognized, Device driver software was not successfully installed."

I was able to fix it. If anyone else encounters this lethal, and pretentious conflict again... I resolved the problem by repeatedly spamming the power button on my computer, unplugging the cable repeatedly and letting my phone sit without the battery inside of it for 24 hours until my PC finally recognized the device.

i3lackDawn said:
I was able to fix it. If anyone else encounters this lethal, and pretentious conflict again... I resolved the problem by repeatedly spamming the power button on my computer, unplugging the cable repeatedly and letting my phone sit without the battery inside of it for 24 hours until my PC finally recognized the device.
Click to expand...
Click to collapse
also it may be because of a faulty data cable !

[Q] Gnex Brick Mount Fastbood Write Fail help :'(

Hi everybody,
ok I will try to make this short
I have an experienced user level ROM, recovery, boot, ..
My phone is BRICKED! Is it?
AT THE MOMENT:
- I get into fastboot mode
- I get into odin downloading mode
- I can't start in recovery mode
- I can't start bootloader mode
- I have a connection with a laptop (win XP, as win8.1 didnt work for me)
- The computer can communicate with the phone in fastboot mode
- The computer cant communicate with the phone in Odin mode (at the moment Odin PC SoftWare doesn't recognize the phone)
- I am sure the drivers are installed correctly now. Thanks to the guide with fully stripped drivers.
- Using different, multiple different, no thousand different methods I tried flashing the stock OS (Yakju 4.3)
- I like SkipSoft Android ToolKit (Although I used fastboot and adb commands, I find the toolkit to do the same thing..)
- I always get an Error, when the process of flashing starts.
> PC says : Error
> Phone (in fastboot mode) says: FAILWrite Fail
INTERESTING:
- While I still was able to get into Recovery, the phone couldnt mount the sdcard (=> the internal drive)
- Some of the methods I use make the phone CRASH
> means the screen stops at its position and slowly turns completely purple
- The phone power button doesnt start the phone, to get the phone doing something at all I have to trick it:
..> I plug it into the wall charger
..> I take the battery out
..> I put the battery back in
..> I wait
..> I can get into 3 routines:
^Normal starting routine (of course stuck at google start up, since no Rom is installed)
^fastboot mode (VOL + & - & Power)
^odin mode (VOL - & Power)
..> Then I can just plug the USB cable into the PC
- 2 days ago I had (every single version) of Odin PC Software recognizing the phone (phone was in Odin mode), but it also failed after trying the recommended and unrecommended settings. Ended with an error message.
HOW:
I left my phone overnight in the car (Temp: -2 deg C), while Im sure spotify and maybe other consuming apps were playing.
Next day, my phone battery was empty and I couldnt start my normal ROM. (I had Slim Rom installed)
It was stuck at the "Google" start up display.
First intentions showed that it might be more than just the Software :/
Many days and so many hours of work, research and reading in forums, I decided to take a shot and ask here.
I appreciate everything xda-members have done for me already. Though I never needed to register for my earlier questions.
Phone data:
Product Name - tuna
Variant - maguro 16gb
HW version - 9
Bootloader Version - primemd04
baseband version -
carrier info - none
serial number - -a3c208 ***
signing - production
lock state- unlocked

BUMP!!! I have absolutely the same problem!! I can access everything, i enter the recovery trying to WIPE every single thing data,system,cache,storage etc.. but it seems it doesnt work. The information stays. I tried to "softbrick unroot & stock" with a nexus kit, everything seems ok, but after it finishes installing, it boots up on GOOGLE and after 10-15 min it starts to BOOT MY OLD CUSTOM ROM THAT I HAD BEFORE, after another 15-20 min it finally boots up and the system is EXTREMELY choppy and unresponsive and after a few minutes it restarts itself. I tried ODIN and I faced the same problem, it goes well to ~45% and then it freezes, and after a short delay odin gives FAILED. I tried several more things that i found on the internet and xda but nothing helps. Probably a corrupted partition or something. THE DAMN STORAGE DOESNT WANT TO DELETE ITSELF FFS!! PLEASE IF YOU KNOW ANY FIX/ALREADY FIXED YOURS PLEASE HELP!!! I need my phone!

can you give us more information about the error message?
valkata1212 said:
Click to expand...
Click to collapse
your issue sounds like this one, can you confirm?

Soulaysahmi said:
can you give us more information about the error message?
your issue sounds like this one, can you confirm?
Click to expand...
Click to collapse
Similar, only difference is with fastboot i can successfully flash system.img but nothing happens. With odin it fails at around 45% and then freezes. Only difference is that i cannot boot to old stock and i dont have this pulpish problem. I simply reboot on my old custom ROM configuration with all my last known icons widgets.. but the phone is choppy and unresponsive as hell.

I only get an error without any further message after flashing any of the images...
Any idea anyone? Isn't it some hardware issue?

Noo man i dont think its hardware problem, for me it all happened when my phone suddenly restarted itself and after that it bootloops forever and i have those problems

Anyone?

does erase work?

yes

can you get into recovery?

oxxomexico said:
AT THE MOMENT:
- I get into fastboot mode
- I get into odin downloading mode
- I can't start in recovery mode
- I can't start bootloader mode
- I have a connection with a laptop (win XP, as win8.1 didnt work for me)
- The computer can communicate with the phone in fastboot mode
- The computer cant communicate with the phone in Odin mode (at the moment Odin PC SoftWare doesn't recognize the phone)
- I am sure the drivers are installed correctly now. Thanks to the guide with fully stripped drivers.
Click to expand...
Click to collapse
ka

how do you know that erase works, I mean that what you erased has really been erased?

One of the erase command in the toolkit was succesful, I guess. But I will recheck every error or successful message later tonight.

still NOT working
2 months have passed and I was too busy with other things.
now back to it. the problem hasnt changed.
i try fastboot flash command:
[fastboot flash bootloader x.img]
- in Computer Terminal: 'FAILED(remote:Write Fail) '
- on phone: ' FASTBOOT STATUS - FAILWriteFail '
any idea, please?

Zenfone 2 Brick - NO LED - NO SCREEN - JUST VIBRATION

Hi, i couldnt find anything on google and youtube, so im here to ask you.
Every bricked situation has a USB Logo on screen or Android logo with ERROR message, BUT i have nothing on the screen. Just opening vibration and it keeps vibrate over and over again in 5-10 min. I dissambled my phone and disconnect battery from mainboard and re-connect it. It just keep vibrate when i re-connect it and it begins a loop. No led when charging, no adb connection (device not found error). Like i said, it keeps vibrate after 5-10 min last vibration. The time it vibrates again, adb finds my device but then it just lost connection.
HOW IT HAPPENED?
1. I was using official android 5 rom with root, I didnt get android 6 update
2. I tried to flash it via Recovery mode but it just didnt get in Recovery mode and it shows an ERROR message on screen. So i googled it and found a few solutions like wipe cache
3. I get in Recovery mode and tried to wipe cache again, but it stuck like 10 min so i forced close my phone. AAND no system i have.. It just didnt opening, ASUS logo with loading circle..
4. I flashed TWRP via ADB
5. so i tried to flash android 6 zip file via TWRP
6. it stucked, i waited over 10-20 min and i forced it to close(it stucked in "Splash screen installing", i though it must last like 1 min or 2 min maybe, its not the system its just opening animation)
7. NOW I HAVE A BRICKED PHONE WITH NO LED NO SCREEN JUST OPENING VIBRATION, cannot connect to adb, cannot get in recovery mode, nothing
Please give me some advices, im ready to try everything that can return my phone back.
English is not my native language, sorry for the huge grammer mistakes. I'm in a hurry and cant think about how can i make a sentence with perfect grammar.

up

This is the best guide : unbrick

Same PRoblem
if u get the solution please send it to me too at [email protected]

please update the links... i can't download the files i need.... thank you in advance...

This happened to me also . In my case i leaved my phone on charge (it was on low battery ) its keeps vibrating in 30 sec - 1 min interval , After some hours of this it finally booted to recovery (but i then rebooted bootloader then safe thing happens . Again after some hours it booted to recovery ) ,then i flashed stock ROM ,it failed but bootloader was back.
Hit Thanks if i helped.

Well, this happened with me, I needed open My phone and unplud batery cable and plug again. Easy to do.

same situation
I am facing the same issue at the moment.If you did fix it ,please reply with the solution or mail it to me at [email protected]
Thanks in advance

Question S21 FE - endless bootloop and download mode/recovery not working (properly)

Hello,
my wife got a S21 FE (SM-G990B/DS VD2). Yesterday it started to reboot over and over out of a sudden, showing the samsung logo first, followed by the knox logo, then shutting off and on again. Tried several guides to enter Recovery or Download Mode. The only thing that worked was entering download mode by pressing Vol up, down and power while a USB-Cable is plugged in, but as soon as i press the vol up button to pass the "warning screen", it shows some phone specs for a couple of seconds, shuts off and starts bootlooping again. After some hours, the phone once entered recovery mode when it lied next to me for about an hour. Tried to wipe cache, but just got an error I can't remember right now. Hoped it fixed itself when it made it to recovery and just rebooted to see if it works again, but then it just keept bootlooping again.
Since then I couldn't figure out why it once booted to recovery on it's own nor why I can't force it to enter recovery by pressing vol up + on.
Still hope it's just a faulty update or bug, but feels very much like it's a hardware related issue. Replacing the phone won't be an issue, but I'd really want to save data on the phone as my wife didn't make any backups and really wants to keep the photos.
As I just found guides that included recovery or DL-Mode, which are both no valid options for my case, I'd be thankful for any ideas to fix the phone or at least gain access to files before replacing it.
So.. did anyone come across similar issues and found a solution to revive the phone or are there any "unpopular" ways to recover samsung phones out of this state?
Edit:
Turned off completely overnight, booted once to system, looped again and now it's working like nothing ever happened. Got no clue what caused it or why it is working again. Saved everything for the case it happens again.
Wouldn't trust that device anymore, but my wife wants to keep it.
¯\_(ツ)_/¯

I would just like to reply here and add my own potential fix and also would like confirmation that it would work.
So I have a SM-G996B in a boot loop which returns a 'fs_mgr_mount_all' error. Possible to reboot into recovery mode, cleared cache and restarted bootloader etc with the same boot loop. Powered off and connected to PC for Download mode for ODIN recovery but upon pressing volume up, it then restarts again so Download mode recovery is impossible.
I know however that Developer options and USB debugging was enabled on the device as well as unlocked boot loader. I was able to download the correct original stock OS based on the PDA , CSC and Android version.
I have then installed the latest ADB software on my PC and Samsung USB drivers.
By then rebooting into recovery mode, I have the option of 'Apply update from ADB'. I have then confirmed the device connects using the ADB devices command.
I would like to clarify one thing however. I want to keep the user data at all costs. By using the stock firmware and renaming as update.zip, will it use the HOME_CSC and not the CSC file? If not would it work if I open the zip and remove the CSC before re-zipping to make sure?
Thanks

Reebee said:
Hello,
my wife got a S21 FE (SM-G990B/DS VD2). Yesterday it started to reboot over and over out of a sudden, showing the samsung logo first, followed by the knox logo, then shutting off and on again. Tried several guides to enter Recovery or Download Mode. The only thing that worked was entering download mode by pressing Vol up, down and power while a USB-Cable is plugged in, but as soon as i press the vol up button to pass the "warning screen", it shows some phone specs for a couple of seconds, shuts off and starts bootlooping again. After some hours, the phone once entered recovery mode when it lied next to me for about an hour. Tried to wipe cache, but just got an error I can't remember right now. Hoped it fixed itself when it made it to recovery and just rebooted to see if it works again, but then it just keept bootlooping again.
Since then I couldn't figure out why it once booted to recovery on it's own nor why I can't force it to enter recovery by pressing vol up + on.
Still hope it's just a faulty update or bug, but feels very much like it's a hardware related issue. Replacing the phone won't be an issue, but I'd really want to save data on the phone as my wife didn't make any backups and really wants to keep the photos.
As I just found guides that included recovery or DL-Mode, which are both no valid options for my case, I'd be thankful for any ideas to fix the phone or at least gain access to files before replacing it.
So.. did anyone come across similar issues and found a solution to revive the phone or are there any "unpopular" ways to recover samsung phones out of this state?
Edit:
Turned off completely overnight, booted once to system, looped again and now it's working like nothing ever happened. Got no clue what caused it or why it is working again. Saved everything for the case it happens again.
Wouldn't trust that device anymore, but my wife wants to keep it.
¯\_(ツ)_/¯
Click to expand...
Click to collapse
Similar issue with same phone. In a bootloop after trying to root. None of the button combinations have worked for me, for the past several days.
Tried powering the phone off for the whole night.
When connected to the PC shows phone is in recovery mode via adb (blank screen though).
Want to know how to get into DL-mode, guaranteed.

Got to DL mode by pressing vol up + down + power + usb cable connected in PC and phone. However, couldn't do anything there, but maybe you can
Also, phone is still working and I still have no clue what was the problem and what fixed it.