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[Q] Nexus S Stuck!

Hi,
today I woke up and my Nexus S was off. I turned it on and it just stucks while showing the google logo..
I tried pulling the battery, turning on.. still stucks!
so I tried do boot in Fastboot, ok.
Installed the SDK, the USB Drivers. The Nexus was recognized as "Android ADB Interface", ok.
Tried to list the device by "adb device", but I only said: list of devices attached. No device!
Then I tried "fastboot device". There it is! Trying "adb device" again, no device. mh.
So I tried to unlock the phone by typing "fastboot oem unlock".
I get the message on my phone, check "YES" and execute by pressing POWER, but no success. The phones stucks again. The cmd just says "...".
I spend 30min by watching on the cmd and the Nexus S, but no result.
What can I do?
Nexus S, locked Bootloader, 2.3.3, 2 days old

*push..*..

Can you get into the bootloader on the device? (Power and Volume Up)
Has it been rooted, and do you have CWM installed?

I can enter the the bootloader. Firmware is stock, unrooted!
I think the main problem is, that usb debug is not enabled in the device. Thats the reason why adb doesnt recognize it. But fastboot does ...

You can only use adb when the phone is booted up. Fastboot is for when the phone is in the bootloader.
Try going into recovery and doing a factory reset?

I don't know which phone you have, I'm on NS4G, got phone unlocked using GSM codes, so erased everything - a mess. When I got to backup using 2 finger method, there was nothing to reboot to
I went to Samsung site - found program called Samsung Simple DL for my phone, downloaded, executed and ran - back to stock. Kept it unlocked, but was back up and running.
I was paniced, so this might help

[Q] Can't unbrick. Tried nigh everything.

Greetings! First of all, I would like to thank anyone who takes the time to help me diagnose and resolve this issues, let alone anyone who takes the time to read this thread.
I've been having issues with my Xoom (ICS 4.0.0) for about 3 weeks now.
A brief history of the issue's occurrence:
-I unrooted the device and returned it to stock.
-Everything was fine and dandy until one day it spontaneously said something along the lines of 'Android is upgrading..', and then performed a reset.
-Since resetting, it bootloops.
The device only turns on when plugged into a charger and hard reset.
The device only turns off when allowed to boot loop for minutes and then hard reset (it simply does not reset, and just turns off).
I'm not the most technically-savvy person with android devices but here are some things I've done/noted.
When trying to use adb commands, it does not recognize the device or properly issue commands.
I've tried wiping data/clearing cache to no avail.
EDIT: I've tried fastbooting, but the bootloader will not unlock. When trying to unlock, it simply resets and then acts as though it was never unlocked.
I have no idea how to return it to a stock image. All I know is that I have a micro-SD and some spare time.
Could anyone help me understand what exactly is going on with my Xoom?
If I can provide you with any more information, please let me know.
Thanks again. (=

If it was stock and spontaneously upgraded it sounds like a bad OTA upgrade. I've been rooted from the start so never have taken an OTA upgrade...don't you need to accept it or can it just upgrade on it's own?
Anyway, can you get it into fastboot mode?
Volume up and power, then at dual core screen, press volume down...if you see something like "entering fastboot mode" you're not bricked. You do not have to re lock your bootloader. Just make sure you have downloaded the correct stock files for your Xoom model to your PC and flash it.
If you haven't done so, just google 'recovering Xoom using fastboot' and you should get some good information.
Good luck!

Remember to grab the MZ604 files if you have the Wifi only version of the Xoom.
http://developer.motorola.com/products/software/ <------ Grab the files here. The files are for the US version of the Wifi Xoom only.
Instructions to return it to stock
1) First you need the Moto Drivers - Read this thread to START you - http://forum.xda-developers.com/showthread.php?t=981578
Should have these drivers installed if you have rooted your Xoom before.
2) Make sure you have the latest SDK - adb and fastboot should be in /platform-tools -
http://developer.android.com/sdk/index.html
Should have the android SDK if you have rooted your Xoom before.
3) Place all the downloaded stock image files into the SDK Tools folder.
4) If you are booting up from scratch, you can get the Xoom in fastboot mode by doing the following. Use command prompt to perform the rest of the steps
Hold VolDown and Power button will boot unit for fastboot mode
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash userdata userdata.img
fastboot erase cache
fastboot oem lock
If you Xoom is booted up already follow the commands below using command prompt to perform the steps
adb reboot bootloader <---- reboots the Xoom into fastboot mode.
fastboot flash boot boot.img
fastboot flash system system.img
fastboot flash recovery recovery.img
fastboot flash userdata userdata.img
fastboot erase cache
fastboot oem lock
As Always If This Was Helpful Hit the Thanks!

Yeah, what Mjamocha said...

okantomi said:
Yeah, what Mjamocha said...
Click to expand...
Click to collapse
LOL Thanks.

okantomi said:
Anyway, can you get it into fastboot mode?
Click to expand...
Click to collapse
Yes, I can. But so far nothing has been successful in terms of fastboot commands.
okantomi said:
You do not have to re lock your bootloader. Just make sure you have downloaded the correct stock files for your Xoom model to your PC and flash it.
Click to expand...
Click to collapse
When I try to execute fastboot commands such as 'fastboot flash boot boot.img'.. it says the following:
Device still locked. Device must be unlocked first. Failed to process command error(0x8)
Whenever I try to unlock the bootloader, it appears to be successful at first and then the device reboots. But it just reboots to a bootloop, and the bootloader still says its locked. Perhaps I made a mistake in communication. The bootloader is currently locked and will not unlock, as just described.
When I try to unlock it and it reboots, even if I access the fastboot menu right away, it still says the device is still locked.
Thoughts?

Can you get into recovery? With the Xoom off (to make sure it's really off, hold volume up + power for a few seconds), hit the power button and when you see the M logo, wait a very brief moment (like a fraction of a second) and hit the volume down button. When it says "recovery" on the top left, hit the volume up. If you can get in there, either restore a nandroid (if you have one) or do a factory reset.

slacka-vt said:
Can you get into recovery? With the Xoom off (to make sure it's really off, hold volume up + power for a few seconds), hit the power button and when you see the M logo, wait a very brief moment (like a fraction of a second) and hit the volume down button. When it says "recovery" on the top left, hit the volume up. If you can get in there, either restore a nandroid (if you have one) or do a factory reset.
Click to expand...
Click to collapse
Yes, I can get into android recovery. However, within a second of switching into recovery mode, the robot falls down and there appears to be a red triangle caution sign containing an exclamation point.
When trying to do a factory reset, it says all data is wiped (as normal). Upon rebooting, it continues to bootloop. So essentially the factory reset and cache clear options in the Android Recovery menu do not produce the expected results.
Pretty odd. I didn't mess with the Xoom at all prior to this issue.

Try flashing just a recovery img to hopefully get your recovery working again. I think you can flash a custom recovery even if the bootloader is locked (i could be wrong but worth a shot) I attached the Rogue "recovery-rogue-1.3.0.img". Try a "fastboot flash recovery recovery-rogue-1.3.0.img"
EDIT: Sorry, I guess you can't flash a custom recovery with a locked bootloader.

slacka-vt said:
Try flashing just a recovery img to hopefully get your recovery working again. I think you can flash a custom recovery even if the bootloader is locked (i could be wrong but worth a shot) I attached the Rogue "recovery-rogue-1.3.0.img". Try a "fastboot flash recovery recovery-rogue-1.3.0.img"
EDIT: Sorry, I guess you can't flash a custom recovery with a locked bootloader.
Click to expand...
Click to collapse
Yeah, just tried it to no avail. Thanks so much for your help anyway. (=
I'm not sure what to do now.

I would keep trying to unlock it using different USB cables and different USB ports on your computer. I've had unlocks fail a bunch of times and for some reason, it was because of a $hity USB cable and/or a bad port on my computer.

slacka-vt said:
I would keep trying to unlock it using different USB cables and different USB ports on your computer. I've had unlocks fail a bunch of times and for some reason, it was because of a $hity USB cable and/or a bad port on my computer.
Click to expand...
Click to collapse
I hear ya. I've tried 2 different cords and 3 different computers. I'm using a Mac (10.6.8) right now, but have used 2 PCs (Vista + 7).

Out of curiosity, when you tried to flash the custom recovery, did you get the same "device still locked" error or did it appear to flash but then recovery failed?

slacka-vt said:
Out of curiosity, when you tried to flash the custom recovery, did you get the same "device still locked" error or did it appear to flash but then recovery failed?
Click to expand...
Click to collapse
I got the 'device still locked' error. Weird, huh?

How about trying to lock it again even though it says it's locked -maybe it's stuck in an "in-between state"? Try a "fastboot oem lock" and if it finishes then try a "fastboot oem unlock". I know, I'm grabbing at straws here. I thought I bricked my Xoom last week. All I did was an "adb reboot bootloader" and the device went to a black screen. Volume Up + Power did nothing. I ended up buying a T5 (Torx 5) bit at the store, removed the back cover and disconnected the battery for 30 seconds using a piece of paper to separate the contacts. The Xoom booted right up after that.

slacka-vt said:
How about trying to lock it again even though it says it's locked -maybe it's stuck in an "in-between state"? Try a "fastboot oem lock" and if it finishes then try a "fastboot oem unlock". I know, I'm grabbing at straws here. I thought I bricked my Xoom last week. All I did was an "adb reboot bootloader" and the device went to a black screen. Volume Up + Power did nothing. I ended up buying a T5 (Torx 5) bit at the store, removed the back cover and disconnected the battery for 30 seconds using a piece of paper to separate the contacts. The Xoom booted right up after that.
Click to expand...
Click to collapse
Yeah I tried that. Won't lock or unlock successfully. Locking produces no difference, and unlocking produces the same 'device still locked' error. This is getting out of hand! Thanks so much for your advice. You think I should open it up?

I hate to be so persistently annoying about this, but could anyone possibly suggest a method of working around the locked bootloader?
Is there anything I can do with an SD card to remedy the device's stubborn foolery?

I think you should give it a try, I have bricked my xoom a few times and have always been able to flash the stock imagine to recover. You really have nothing to lose by pulling the battery pin just be careful.
Sent from my Xoom using xda premium

I don't know if I'm technically-equipped enough to do that. )=
Sounds easy, but I imagine it would be rather easy to screw something up? Essentially what I should do is unseat the battery, right?

cherlamperter said:
I don't know if I'm technically-equipped enough to do that. )=
Sounds easy, but I imagine it would be rather easy to screw something up? Essentially what I should do is unseat the battery, right?
Click to expand...
Click to collapse
I have looking for a utube how to guide but no luck, I just might make one for you so you will know what to expect. Give me a few and I will get back to ya.
Sent from my Xoom using xda premium

Problem after unlocking bootloader - Bricked?

Hey guys, how are you?
Well, I wished to root my Moto G, so I (tryed?) to unlock the bootloader. Alright, done it, but then I ran into some trouble...
After the booting up, everything started forceclosing and since then, when I try to boot it, I get a black screen after the Motorola logo.
Now, I am really really worried about my phone. I got it a month ago. I'm so afraid I really f****d up my phone right now that my hands are shaking.
I'm new to Android, so sorry if the solution is pretty obvious. And if it's not, could explain it very carefully to me? I don't know what to do.
My best wishes to you, guys.

I'm assuming you used superboot if so that would happen.
The logo sort of blured out right just press volume down and power and it would work
Or did this happen when you were just trying to unlock bootloader?

TomGlass1 said:
I'm assuming you used superboot if so that would happen.
The logo sort of blured out right just press volume down and power and it would work
Or did this happen when you were just trying to unlock bootloader?
Click to expand...
Click to collapse
Yeah, that happenned when I was trying to unlcok bootloader.
And well, my computer now doesn't even recognizes my phone.
EDIT: It appears as "Fastboot falcon S" in the Device Manager. Tried installing some drivers I found in the Internet, but it didn't work.

Explain exactly what happened please. Was the unlock successful and did you just bootup normally after or did u do anything else in fastboot mode? Why are you trying to install fastboot drivers again, as you already wouldve had them to unlock the bootloader. Did you try installing recovery or some root img from fastboot? You said its forceclosing, but it isnt starting at all now?
Some things you can do right now (if your bootloader is unlocked) is to flash a recovery (twrp,cwm) through fastboot and if you think most system files (or settings) are beyond repair, flash your firmware version though fastboot. Will point you to the guides for them, but post more info if you want help.

hemanthmahesh said:
Explain exactly what happened please. Was the unlock successful and did you just bootup normally after or did u do anything else in fastboot mode? Why are you trying to install fastboot drivers again, as you already wouldve had them to unlock the bootloader. Did you try installing recovery or some root img from fastboot? You said its forceclosing, but it isnt starting at all now?
Some things you can do right now (if your bootloader is unlocked) is to flash a recovery (twrp,cwm) through fastboot and if you think most system files (or settings) are beyond repair, flash your firmware version though fastboot. Will point you to the guides for them, but post more info if you want help.
Click to expand...
Click to collapse
Alright, just after I unlocked, when I was booting, I got a message saying that "xxxx has stopped working/failed to initialize/something like that". And then, when I rebooted, I got the usual message of the "bootlocker has been unlocked". After that, the Motorola logo started animating, but then I just got a black screen. I can't turn it off and the battery just got depleted (I'm charging right now).
When I try to connect it in my computer, the PC recognizes it as "MTP Device" or "Fastboot falcon S" when fastbooted. I can't install any drivers and the Motorola Device Manager doesn't recognizes it either.
Well, if there is some missing information, just ask me. I tried to describe my problem the best I could. Anyway, sorry for my bad English and thanks in advance for any effort trying to discover what's wrong.

Motorola Device Manager isn't helpful in this state as it doesn't handle things in fastboot. You already have all the required drivers (fastboot falcon S is the right driver afaik, falcon being motog codename) for flashing your stock firmware.
1. First, you can try the "Factory" option in bootloader (the third one, use volume down to move selector, volume up to select), though this might not really work for major issues.
2. When in fastboot mode, use "fastboot getvar all" to get the firmware details if you already didn't know about it.
3. Otherwise if yours is a standard gsm (non dualsim/non cdma), just download Blur_Version.174.44.9.falcon_umts.Retail.en.GB (UK stock for gsm, 4.4.2)
Download the mfastboot files to use rather than fastboot for flashing. You might need to modify your commands a bit for various firmwares.
http://forum.xda-developers.com/showthread.php?p=47820707 (refer this thread for flashing your stock firmware)
All the firmwares are in either of the links below (all around 400mb):
http://sbf.droid-developers.org/phone.php?device=14
(or)
http://www.filefactory.com/folder/c6cdedc45a775d27
I still don't get why many ppl are getting these errors after unlocking, very bad unlock method of moto if so ( I didnt get any such issues though).

When I use the "fastboot getvar all" command, it says "waiting for device". The phone is already connected, but the Moto G doesn't recognizes it's connected either.
I'm getting more and more afraid I really hardbricked it.

http://www.mymotocast.com/download/MDM?platform=windows
Tried installing these drivers? Your fastboot doesn't seem to be setup properly. How did you unlock without a working fastboot driver? You are trying that command in bootloader mode right?

Already installed it from the start. The message I got is always this:
"There aren't any updates for your device at the moment
Current Version: N/A"
My fastboot: Doesn't matter the operation I do, I always get this <waiting for device> and the phone is already connected into the computer. And the phone doesn't recognizes it is connected too.
And greeeeat news: my phone now doesn't charges either. I get stuck on a screen with a battery logo and 0%, when connected to the charger. Still, I still can access the fastboot mode. Well, am I lucky or not?

I'm pretty confused with this. How exactly did you unlock without a working fastboot (no waiting for device issue)? Did you change your pc drivers after unlock or trying this from a different pc? When you say "phone doesn't recognizes it is connected" you mean it says "Connect USB data cable" below "Device is UNLOCKED"? If so, maybe try another usb port cause it should normally say "Transfer Mode: USB Connected" regardless of proper drivers.
Your phone will chrarge no matter what though, no worry about that. It needs to say "Battery OK (Charging)" when connected to PC
No, as long as you have working your device isn't technically bricked in any sense. Don't worry, get that fastboot working again and anything can be fixed.
Also you didnt say whether or not you tried that "Factory" option in bootloader!

hemanthmahesh said:
I'm pretty confused with this. How exactly did you unlock without a working fastboot (no waiting for device issue)? Did you change your pc drivers after unlock or trying this from a different pc? When you say "phone doesn't recognizes it is connected" you mean it says "Connect USB data cable" below "Device is UNLOCKED"? If so, maybe try another usb port cause it should normally say "Transfer Mode: USB Connected" regardless of proper drivers.
Your phone will chrarge no matter what though, no worry about that. It needs to say "Battery OK (Charging)" when connected to PC
No, as long as you have working your device isn't technically bricked in any sense. Don't worry, get that fastboot working again and anything can be fixed.
Also you didnt say whether or not you tried that "Factory" option in bootloader!
Click to expand...
Click to collapse
OMG. I tried that "Factory" option before but it didn't work. Now I tried a second time and it worked. Thanks a lot! Really :laugh:
Anyway, now my phone is back again and rooted. Thanks for the help, guys!

Thaiane said:
Already installed it from the start. The message I got is always this:
"There aren't any updates for your device at the moment
Current Version: N/A"
My fastboot: Doesn't matter the operation I do, I always get this <waiting for device> and the phone is already connected into the computer. And the phone doesn't recognizes it is connected too.
And greeeeat news: my phone now doesn't charges either. I get stuck on a screen with a battery logo and 0%, when connected to the charger. Still, I still can access the fastboot mode. Well, am I lucky or not?
Click to expand...
Click to collapse
Guys the problem occurs due to corruption of /data folder. Even I had the same issue.
What you can do is
1. Connect your phone to PC in fastboot mode.
2. In fastboot, enter the command "adb erase userdata" and "adb erase cache" without quotes and reboot you phone. It will work for most of the devices, if it doesn't I have some other workaround too.

help
forgotter said:
Guys the problem occurs due to corruption of /data folder. Even I had the same issue.
What you can do is
1. Connect your phone to PC in fastboot mode.
2. In fastboot, enter the command "adb erase userdata" and "adb erase cache" without quotes and reboot you phone. It will work for most of the devices, if it doesn't I have some other workaround too.
Click to expand...
Click to collapse
I have the same problem. my phone stuck in blank screen after Unlock Bootloader. and then I try to do "adb erase userdata" and "adb erase cache". but my phone has no chenge, still stuck in.
I attach log when enter command adb above.
I'm sorry before. I can't spech English well

jidurrr said:
I have the same problem. my phone stuck in blank screen after Unlock Bootloader. and then I try to do "adb erase userdata" and "adb erase cache". but my phone has no chenge, still stuck in.
I attach log when enter command adb above.
I'm sorry before. I can't spech English well
Click to expand...
Click to collapse
The log you have posted contains only the help commands of adb and not the actual commands you gave.
Give a try to factory reset from fastboot mode on your phone. And do you a custom recovery installed in your phone?

forgotter said:
The log you have posted contains only the help commands of adb and not the actual commands you gave.
Give a try to factory reset from fastboot mode on your phone. And do you a custom recovery installed in your phone?
Click to expand...
Click to collapse
I've tried factory reset for several times, but no change as well.
yes, I get a CWM in my phone. and then, what have I do?

jidurrr said:
I've tried factory reset for several times, but no change as well.
yes, I get a CWM in my phone. and then, what have I do?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2704207
Go to the above forum.
Sorry for late reply was busy with studies.

I had flash stock firmware
through PC

{Q} {ASAP} Completely Bricked HTC One M4. Help!

My friend has recently given me his old phone and ask me if i could fix it for him, i took up the chance and said yeah sure, but now i am stuck and i have no clue what to do!
This phone has no operating system on it and when i got to boot it up, it goes straight to the bootloader screen with the corresponding options; "BOOTLOADER", "REBOOT", "REBOOT BOOTLOADER", "POWER DOWN".
Although i feel that it has no operating system, the bootloader says otherwise. It says that it has "OS-4.15.61.2". It is completely locked and has never been tampered with before, and using "HBOOT-2.22.000".
I have tried putting it into fastboot and then downloading the fastboot terminal, but when i type "fastboot devices" nothing shows up then when i type in something like "fastboot oem unlock" it just says "Waiting for devices". I have been searching for the last 2-3 hours and have been looking at the phone for around 4 hours. I have completely lost my sanity with this phone and it is really bugging me.
Please Help Me!
Yours Sincerely,
Mitch

SkylineUK said:
My friend has recently given me his old phone and ask me if i could fix it for him, i took up the chance and said yeah sure, but now i am stuck and i have no clue what to do!
This phone has no operating system on it and when i got to boot it up, it goes straight to the bootloader screen with the corresponding options; "BOOTLOADER", "REBOOT", "REBOOT BOOTLOADER", "POWER DOWN".
Although i feel that it has no operating system, the bootloader says otherwise. It says that it has "OS-4.15.61.2". It is completely locked and has never been tampered with before, and using "HBOOT-2.22.000".
I have tried putting it into fastboot and then downloading the fastboot terminal, but when i type "fastboot devices" nothing shows up then when i type in something like "fastboot oem unlock" it just says "Waiting for devices". I have been searching for the last 2-3 hours and have been looking at the phone for around 4 hours. I have completely lost my sanity with this phone and it is really bugging me.
Please Help Me!
Yours Sincerely,
Mitch
Click to expand...
Click to collapse
Do you have ADB installed and working on your PC?
Sent from my OnePlus 2 using Tapatalk

Possibly bricked Pixel 4a

Hello, so I tried to flash the rooted boot image for my Pixel 4a Sunfish from HolyAngel's thread, and I got stuck in a bootloop; I reckon it is because the boot image build number was incorrect, I did a cursory glance, did not verify character by character. When it booted up, it got stock at a Google logo. So I restarted, and it takes me back to Fastboot Mode. I Whenever I "Start" it just takes me back to Fastboot Mode. In Fastboot Mode, my computer will not recognize my device; I have tried installing Google Drivers multiple times with no change. However, when I enter Recovery mode, my computer sees my Pixel but whenever I try to give any commands through ADB, it doesn't work becaues my device is "unauthorized". Once again, I cannot boot up the phone so I cannot change the Developer Options. When I boot up into rescue mode, I am able to give commands through ADB, but it always ends up in <waiting for device> even though I was able to successfully give the command "adb fastboot boot boot.img" in order to flash the rooted boot.img. Any guidance is appreciated. I don't know what to do anymore

If you don't care if your phone gets wiped, then maybe following the Second Setp (section) on this page might get your phone back:
https://forum.xda-developers.com/t/guide-unlocking-downgrading-to-a10-twrp-root.4233275

JohnC said:
If you don't care if your phone gets wiped, then maybe following the Second Setp (section) on this page might get your phone back:
https://forum.xda-developers.com/t/guide-unlocking-downgrading-to-a10-twrp-root.4233275
Click to expand...
Click to collapse
Thank you so much for you response, however, after about 5 minutes the command finally "got to" the phone. I have no idea why it took 5 minutes for the phone to respond to the ADB command. Regardless, the phone went to the "fastbootd" screen after I typed in "flash-all.bat" in accordance with this video:
The reason why I am providing so much context is because I hope it helps someone in the future who has the same issue.