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weird problem trying to unlock nexus s

a buddy of mine bought a nexus s off of craigslist that is constantly force closing when you boot it. it will force close everything then reboot itself. im attempting to unlock the bootloader but adb devices doesnt show the serial number like it does for my nexus s. when i hold down volume up+down and plug in the usb it goes to the unlock bootloader screen but it doesnt give you the option of yes or no. iv posted a picture to show what it looks like. i cant get the phone into download to try to fix it with odin either. any help would be appreciated.
edit: i finally got my pc to recognize it and we now have an unlocked bootloader, but now iv encountered another problem. i downloaded a recovery image and moved it to the tools folder of sdk when i type in the fastboot flash recovery command it responds with error: cannot load recovery.img.

To unlock bootloader, you have to use fastboot, not adb. So the correct command would be fastboot devices
To boot into the bootloader, you have to press volume up + power, not volume up+down and plug in the usb -- that would bring you into the Download Mode instead

suksit said:
To unlock bootloader, you have to use fastboot, not adb. So the correct command would be fastboot devices
To boot into the bootloader, you have to press volume up + power, not volume up+down and plug in the usb -- that would bring you into the Download Mode instead
Click to expand...
Click to collapse
i know, i used adb devices to see if my computer would even recognize the phone. i i can get into fastboot mode by pressing volume up and power but cant send a fastboot command to the phone because it doesnt recognize the phone. when i hold down volume up and down to get into download mode it sends me to the screen i showed in the pic. its the unlock bootloader screen except there is no option to click yes to unlock the bootloader. i would love to get into download mode and use odin hence why i pressed vol up and down and plugged in usb, but like i said it sends me to the unlock bootloader screen.

fosdos4790 said:
a buddy of mine bought a nexus s off of craigslist that is constantly force closing when you boot it. it will force close everything then reboot itself. im attempting to unlock the bootloader but adb devices doesnt show the serial number like it does for my nexus s. when i hold down volume up+down and plug in the usb it goes to the unlock bootloader screen but it doesnt give you the option of yes or no. iv posted a picture to show what it looks like. i cant get the phone into download to try to fix it with odin either. any help would be appreciated.
edit: i finally got my pc to recognize it and we now have an unlocked bootloader, but now iv encountered another problem. i downloaded a recovery image and moved it to the tools folder of sdk when i type in the fastboot flash recovery command it responds with error: cannot load recovery.img.
Click to expand...
Click to collapse
Before you try to unlock the bootloader I would flash the latest stock rom and see if it boots properly.
Sent from my PC36100 using XDA Premium App

fosdos4790 said:
edit: i finally got my pc to recognize it and we now have an unlocked bootloader, but now iv encountered another problem. i downloaded a recovery image and moved it to the tools folder of sdk when i type in the fastboot flash recovery command it responds with error: cannot load recovery.img.
Click to expand...
Click to collapse
Try one of these recovery images:
http://forum.xda-developers.com/showthread.php?t=988686
The full command is
fastboot flash recovery recovery.img
(make sure your recovery image file is actually named recovery.img)

If 'fastboot devices' returns your phone's id you can flash a custom recovery. Otherwise get a full _signed_ stock rom and flash from stock recovery.
Did you install all drivers? Deinstall existing and use either pdanet or sdk build in program to get them. You need like 3 different ones.
Try locking unlocking bootloader again.
There's always the chance you got a defective usb connector.
Sent from my Nexus S using XDA App

[Q] Fastboot and locking problems

hey so i need to send my nexus s in for repair and i have stock rom and recovery, but every time i try fastboot oem lock it just sits at "waiting for device"
ADB works fine.
I tried alternative drivers
What can i do to re lock my phone?

Are you in the bootloader? (Phone off -> Vol. Up + Power -> fastboot oem lock).
Also, does the command "fastboot devices" show your device?

The USB connector socket at the phone might not make a proper contact with the USB plug. Make sure they connect properly. You may try another cable, or have a look at your USB socket and compare it to another. Check out particularly the little horizontal part in the USB socket.
Make sure you're in bootloader/fastboot mode before attempting to connect in fastboot. Fastboot cannot detect your phone, make sure your udev related settings are appropriate. Check on a Linux PC: https://source.android.com/source/initializing.html Configuring USB Access section.
If after this your phone will not be recognized by fastboot, please post the output of the following command (as root), after seconds after connecting the phone in fastboot mode:
Code:
tail /var/log/messages

Harbb said:
Are you in the bootloader? (Phone off -> Vol. Up + Power -> fastboot oem lock).
Also, does the command "fastboot devices" show your device?
Click to expand...
Click to collapse
fastboot does not show my device. I go into bootloader using adb reboot bootloader because my stupid power button wont work, thats why i want to sent it in to get fixed.

If drivers are properly installed this might not be working because the power button is stuck in or something. Not sure what to try to sort it out if that's the case.

mikeydubbs said:
hey so i need to send my nexus s in for repair and i have stock rom and recovery, but every time i try fastboot oem lock it just sits at "waiting for device"
ADB works fine.
I tried alternative drivers
What can i do to re lock my phone?
Click to expand...
Click to collapse
1 - Boot your phone into fastboot mode.
2 - open cmd in your pc.
3 - write: cd \"name of the file where your fastboot is in your pc", and then press enter.
4 - write: fastboot oem lock
5 - press enter and it's done!

bjuderas said:
1 - Boot your phone into fastboot mode.
2 - open cmd in your pc.
3 - write: cd \"name of the file where your fastboot is in your pc", and then press enter.
4 - write: fastboot oem lock
5 - press enter and it's done!
Click to expand...
Click to collapse
if you read the first post it says that fastboot doesnt work

mikeydubbs said:
if you read the first post it says that fastboot doesnt work
Click to expand...
Click to collapse
Sorry, didn't read it right!
And I'm sorry, but I don't know the solution for your problem!

have you tried using a different usb port on your pc?
sent from my dark iced, skanky, t11 infused ns4g

p1gp3n said:
have you tried using a different usb port on your pc?
sent from my dark iced, skanky, t11 infused ns4g
Click to expand...
Click to collapse
yeah i have and i tried using my laptop, and ubuntu 11.10
this sucks so much

i sent my phone in for a broken power button as well. I couldn't even get into the bootloader to relock it so i sent it with an unlocked bootloader. they still fixed it.

shahravi94 said:
i sent my phone in for a broken power button as well. I couldn't even get into the bootloader to relock it so i sent it with an unlocked bootloader. they still fixed it.
Click to expand...
Click to collapse
so do you think as long as its not rooted they wont care?

yup! i flashed a stock image so it was unrooted and sent it in. they fixed it up for me

If you are using Linux you might need su permissions!
Try:
sudo fastboot oem lock

mikeydubbs said:
hey so i need to send my nexus s in for repair and i have stock rom and recovery, but every time i try fastboot oem lock it just sits at "waiting for device"
ADB works fine.
I tried alternative drivers
What can i do to re lock my phone?
Click to expand...
Click to collapse
Hi, I know this thread is old but I was having the same problem relocking my nexus 4 after installing stock Android 4.4.3 KitKat.
I'm using Nexus Root Toolkit, I don't know what tools you're using to lock your nexus S boblem ut this very easy to use it downloads the drivers and what ever you need to lock, unlock or flash stock and custom roms for any Nexus device.
So my problem was that I would launch OEM Lock on Nexus Root Toolkit and it would detect the device, reboot in Fastboot mode and it would proceed just fine but after saying "Launching TWRP.... something" it would reboot the phone and say to me "Waiting for device" untill it would time out.
I found out that when the program(NEXUS ROOT TOOLKIT) asked me to download a TWRP IMG files, I said no everytime because I didn't think I'd need it. So after trying 5 times, I allowed it to download it and i retryed to OEM Lock it and MAGIC!
Somewhere in the process of Locking the rom it is going to need the TWRP File so allowing the program to download it solved it for me.
I don't know if this will help you or if you still have the same phone, but if you do have use Nexus Root Toolkit and download all it asks and you'll be fine.
Good Luck.

"waiting for device" forever when "fastboot oem unlock:
mikeydubbs said:
hey so i need to send my nexus s in for repair and i have stock rom and recovery, but every time i try fastboot oem lock it just sits at "waiting for device"
ADB works fine.
I tried alternative drivers
What can i do to re lock my phone?
Click to expand...
Click to collapse
I have the same exact problem.
ADB works fine when the phone is up & running, so I am suspecting a driver compatibility problem when the phone is in "FASTBOOT MODE".
I tried to install the "Universal Naked Driver 0.73 (Compatible with Nexus 5, 4, 7, 10 and S)" but Windows 7 64-bit refuses to pick it up. I use the Device Manager method which shows (when the phone is in "FASTBOOT MODE"):
Code:
"Other Devices
> Android 1.0"
When the phone is up & running, Device Manager shows it as:
Code:
"Android USB Devices
> SAMSUNG Android Composite ADB Interface"
Any idea how to proceed from here?
-----
Update: After a day went by, I searched Google some more and found a thread that describes exactly my problem:
http://forum.xda-developers.com/nexus-s/help/nexus-s-root-windows-requests-android-1-t878579
Which led me to:
http://forum.xda-developers.com/nex...oader-nexus-s-t875580/post9861928#post9861928
Which led me to:
http://pdanet.co/a/
I am rushing to try this now...
-------
Success!
~> fastboot oem unlock
...
OKAY [ 18.734s]
finished. total time: 18.734s
Click to expand...
Click to collapse

nunojpg said:
If you are using Linux you might need su permissions!
Try:
sudo fastboot oem lock
Click to expand...
Click to collapse
It helped. Thanks!

mikeydubbs said:
hey so i need to send my nexus s in for repair and i have stock rom and recovery, but every time i try fastboot oem lock it just sits at "waiting for device"
ADB works fine.
I tried alternative drivers
What can i do to re lock my phone?
Click to expand...
Click to collapse
Well before trying to Relock the device see whether its connected or not. Type this command fastboot devices and hit enter see whether it shows some no. As in a reply if not that means the deivce isnt connected. If the device is connected type this command to relock your device fastboot oem lock and hit enter. Check on your device screen The Lock status will be changed to LOCKED.
If Helped Click Thanks
---------- Post added at 03:30 PM ---------- Previous post was at 03:27 PM ----------
mikeydubbs said:
hey so i need to send my nexus s in for repair and i have stock rom and recovery, but every time i try fastboot oem lock it just sits at "waiting for device"
ADB works fine.
I tried alternative drivers
What can i do to re lock my phone?
Click to expand...
Click to collapse
Well before trying to Relock the device see whether its connected or not. Type this command fastboot devices and hit enter see whether it shows some no. As in a reply if not that means the deivce isnt connected. If the device is connected type this command to relock your device fastboot oem lock and hit enter. Check on your device screen The Lock status will be changed to LOCKED.
If Helped Click Thanks

relocked bootloader

Cannot unlock bootloader anymore after RUU update , tried 10 times without succes.
thx in advace for the help

What's the steps are you doing in trying to lock the bootloader?
Information like that help to see what's right or wrong.
What do you get when typing in command
Code:
fastboot devices
does the PC see your device?

This is a second thread today with same issue refer to the other for solution!
CLUE:Cannot Unlock Bootloader

yes i use one AIO toolkit for the first 8 times it appear the choice YES or NO if you want to unlock..but i haven't uncked the fastboot in the power setting. Now i'm trying again but seems that the unlocking choice doesn't appear , i'm stuck on the bootloader screen.

mastercut said:
yes i use one AIO toolkit for the first 8 times it appear the choice YES or NO if you want to unlock..but i haven't uncked the fastboot in the power setting. Now i'm trying again but seems that the unlocking choice doesn't appear , i'm stuck on the bootloader screen.
Click to expand...
Click to collapse
recheck your typed commands, probably a typo error! follow the steps properly!

Ok to re unlock your bootloader after flashing the token let the phone boot up then enable usb debugging and disable fastboot in the power menu
Then completely power off the phone wait a minute then reboot once you are back on the home screen push power and restart holding volume down when you reboot to bootloader it should now say unlocked again
Sent from my HTC One S using xda premium

Code:
:cd %:h
adb kill-server
adb reboot bootloader
fastboot flash unlocktoken Unlock_code.bin
pause
exit

I had the same issue. I took all the steps again from start. Meaning I requested the the token ID (which differs from the first for me) and this token ID registered this again at htcdev.com. It worked the first time with the new unlock.bin.
Hope this helps.

I had a similar problem, the author of the other thread, I havent worked out the exact problem yet but I think the key here is to not rush the steps and also disconnect the usb cable one you are on the YES/NO choice screen (before you select and phone reboots).

craig1965 said:
Ok to re unlock your bootloader after flashing the token let the phone boot up then enable usb debugging and disable fastboot in the power menu
Then completely power off the phone wait a minute then reboot once you are back on the home screen push power and restart holding volume down when you reboot to bootloader it should now say unlocked again
Sent from my HTC One S using xda premium
Click to expand...
Click to collapse
SOLVED thx a lot

[Q]Htc One S Stuck on boot screen. Need to get data from it.

Hi,I have T-mobile Htc One S never unlocked, rooted etc. everything is stock on it.
Few days ago it was charging all night then in the morning it was stuck on the boot screen with HTC logo.
Since then it stays there and doesn't want to boot. It`s able to boot the service screen after holding Power button and Volume Down and I tried to do factory reset but nothing helps.
I already have an replacement from T-mobile but I want to get my pictures and contacts from it.
Is there any way to access the phone just to get them?
Thanks!

Plug it in to your computer. Does the computer recognise the existence of the phone?
Sent from my One S using xda premium

No. Computer can't detect the phone.

rtuser said:
No. Computer can't detect the phone.
Click to expand...
Click to collapse
If u can go into recovery mode ( power+vol down ) you can mount USB
Then plug it into a PC

nipunf said:
If u can go into recovery mode ( power+vol down ) you can mount USB
Then plug it into a PC
Click to expand...
Click to collapse
When i plug the usb while phone is in recovery mode nothing popup on the computer. Do I need to install any drivers for it before connecting phone to the computer?

no need just try this
goto recovery
select mount then select mount usb storage
then plug it into a PC

nipunf said:
no need just try this
goto recovery
select mount then select mount usb storage
then plug it into a PC
Click to expand...
Click to collapse
I have the following options
FASTBOOT
RECOVERY
FACTORY RESET
CLEAR STORAGE
SIMLOCK
IMAGE CRC
SHOW BARCODE
If I press on recovery the Htc logo is shown and nothing else.

rtuser said:
I have the following options
FASTBOOT
RECOVERY
FACTORY RESET
CLEAR STORAGE
SIMLOCK
IMAGE CRC
SHOW BARCODE
If I press on recovery the Htc logo is shown and nothing else.
Click to expand...
Click to collapse
Go on Fastboot. Does Fastboot change to Fastboot USB?

kylepont said:
Go on Fastboot. Does Fastboot change to Fastboot USB?
Click to expand...
Click to collapse
In Fastboot
I can choose:
BOOTLOADER
REBOOT
REBOOT BOOTLOADER
POWER DOWN

rtuser said:
In Fastboot
I can choose:
Click to expand...
Click to collapse
Not quite that. When you click it, there should be a highlighted title in red saying "Fastboot" or "Fastboot USB". That's what I mean.

kylepont said:
Not quite that. When you click it, there should be a highlighted title in red saying "Fastboot" or "Fastboot USB". That's what I mean.
Click to expand...
Click to collapse
OK. It was staying on the screen then it decided to connect to the computer.
No the HTC driver is installed and phone is connected.

rtuser said:
I have the following options
FASTBOOT
RECOVERY
FACTORY RESET
CLEAR STORAGE
SIMLOCK
IMAGE CRC
SHOW BARCODE
If I press on recovery the Htc logo is shown and nothing else.
Click to expand...
Click to collapse
select recovery ( by pressing power button ) then phone will restart into recovery mode after that
Select mount then select mount usb storage then plug it into a PC this should work without any problems ...

nipunf said:
select recovery ( by pressing power button ) then phone will restart into recovery mode after that
Select mount then select mount usb storage then plug it into a PC this should work without any problems ...
Click to expand...
Click to collapse
When I select recovery the phone restarts and then stuck at the HTC Logo screen.

What about fastboot did you tried kylepont's way?
You can get your contacts from Gmail log into Gmail using your phones email address then goto
https://mail.google.com/mail/u/0/#contacts

nipunf said:
What about fastboot did you tried kylepont's way?
You can get your contacts from Gmail log into Gmail using your phones email address then goto
https://mail.google.com/mail/u/0/#contacts
Click to expand...
Click to collapse
kylepont`s way is working I mean there was pop up on the PC and installed Android drivers but I`m not able to see the phone in explorer.
Is there any specific software to use to connect to the phone?
And for contacts seem like most of them are not synchronized with my Google account thats way I need to get them too.

well you can try re flashing the recovery it might help

nipunf said:
well you can try re flashing the recovery it might help
Click to expand...
Click to collapse
Ok. Thanks for your help but how to do that and I~m not going to erase my data after flashing the recovery right?

no it wont i was talking about just flashing the recovery (only recovery)
whats the model you have S3 or S4 ?

nipunf said:
no it wont i was talking about just flashing the recovery (only recovery)
whats the model you have S3 or S4 ?
Click to expand...
Click to collapse
I don't know I bought it when it was released from t-mobile.
How can I check if it`s S3 or S4?

i forgot that you mentioned it was from t-mobile then its a s4
try installing recovery again it should work

Propably bricked software

Hello guys. I just got my N5 and ofc rooted it , unlocked bootloader. Then when I booted it into recovery mode ( CWM recovery) I did factory reset as ussually. Then I realised that all my files on card were deleted os I couldnt even flash CM. I tried to pull off the battery. Right now phone does not want to boot into fasboot mode or normal boot. But it can be seen via pc. Is there any way to fix it? I am sure in 99% that this is a problem of deleted software not hardware. Right now its coneted to pc and the screen is on ( but it does not show anything. just pure black).

wojwem19 said:
Hello guys. I just got my N5 and ofc rooted it , unlocked bootloader. Then when I booted it into recovery mode ( CWM recovery) I did factory reset as ussually. Then I realised that all my files on card were deleted os I couldnt even flash CM. I tried to pull off the battery. Right now phone does not want to boot into fasboot mode or normal boot. But it can be seen via pc. Is there any way to fix it?
Click to expand...
Click to collapse
Connect the phone to the pc and type in cmd: adb devices (should see a serial number), if so type: adb reboot bootloader. Do you get into bootloader mode then? BTW did you format data or data factory reset?

wojwem19 said:
Hello guys. I just got my N5 and ofc rooted it , unlocked bootloader. Then when I booted it into recovery mode ( CWM recovery) I did factory reset as ussually. Then I realised that all my files on card were deleted os I couldnt even flash CM. I tried to pull off the battery. Right now phone does not want to boot into fasboot mode or normal boot. But it can be seen via pc. Is there any way to fix it? I am sure in 99% that this is a problem of deleted software not hardware. Right now its coneted to pc and the screen is on.
Click to expand...
Click to collapse
if it doesn't boot on fastboot or recovery and you said that your phone's display is on.. in what mode is it?? well if you can go into fastboot simply download the original system and flash it.. After you will boot your phone and connect it to the pc and flash recovery etc etc :good:

gee2012 said:
Connect the phone to the pc and type in cmd: adb devices (should see a serial number), if so type: adb reboot bootloader. Do you get into bootloader mode then? BTW did you format data or data factory reset?
Click to expand...
Click to collapse
I did factory reset. Tried to write in cmd adb devicies but it says that it doesnt know what it means. Maybe i need to download some kind of software to use adb?

N3xusS said:
if it doesn't boot on fastboot or recovery and you said that your phone's display is on.. in what mode is it?? well if you can go into fastboot simply download the original system and flash it.. After you will boot your phone and connect it to the pc and flash recovery etc etc :good:
Click to expand...
Click to collapse
It isnt any mode known for me. The screen is on but it doesnt show anything it is just pure black. The problem is that i can't get to fastboot mode ( volume down + power button).

wojwem19 said:
It isnt any mode known for me. The screen is on but it doesnt show anything it is just pure black. The problem is that i can't get to fastboot mode ( volume down + power button).
Click to expand...
Click to collapse
hold power for 10 seconds. then hold volume up + down + power

samersh72 said:
hold power for 10 seconds. then hold volume up + down + power
Click to expand...
Click to collapse
Okay did it. after those 10 secs the google screen showed up. Then i presed vol up+ down+ power and right now I am on this google screen. What should I do now? Right now I think it got some kind of bootloop.
Okay just updated my drives via windows and right now in Devicies menager it show up as a " Google nexus ADB Interface".

wojwem19 said:
Okay did it. after those 10 secs the google screen showed up. Then i presed vol up+ down+ power and right now I am on this google screen. What should I do now?
Click to expand...
Click to collapse
sir, hold the power button until it turned off then directly hold the volume up + down followed by power

samersh72 said:
sir, hold the power button until it turned off then directly hold the volume up + down followed by power
Click to expand...
Click to collapse
Okay did it and right now it shows in device menager as "QHSUSB_BULK" and windows can not find software for it. The google logo disappered and screen is off right now.

Okay i managed to turn it into fastboot mode. What should I do right now? and in devices menager it shows up as " Google nexus bootloader interface" Can anyone answer to me? it's really important for me.

wojwem19 said:
Okay did it and right now it shows in device menager as "QHSUSB_BULK" and windows can not find software for it. The google logo disappered and screen is off right now.
Click to expand...
Click to collapse
now try to boot into fastboot mode, volume down + power or both volume + power

wojwem19 said:
Okay did it and right now it shows in device menager as "QHSUSB_BULK" and windows can not find software for it. The google logo disappered and screen is off right now.
Click to expand...
Click to collapse
Can you get into bootloader mode? Hold power button for 10 seconds until it shuts off. Then press and hold vol + and- and then power
Sent from my Nexus 5

wojwem19 said:
Okay i managed to turn it into fastboot mode. What should I do right now?
Click to expand...
Click to collapse
good. flash stock images or boot into custom recovery (you can flash it) and sideload a rom or push a rom (see sticky threads in general section)

gee2012 said:
Connect the phone to the pc and type in cmd: adb devices (should see a serial number), if so type: adb reboot bootloader. Do you get into bootloader mode then? BTW did you format data or data factory reset?
Click to expand...
Click to collapse
Okay right now I am in fastboot mode and installed sdk manager. In folder sdk/platform-tools I enabled cmd with shift + right click. Run adb devicies and it said "daemon not running. starting it now on port 5037
daemon started successfully
list of devices attached".
And when i run it once again it says only "List of devicies attached".

wojwem19 said:
Okay right now I am in fastboot mode and installed sdk manager. In folder sdk/platform-tools I enabled cmd with shift + right click. Run adb devicies and it said "daemon not running. starting it now on port 5037
daemon started successfully
list of devices attached".
And when i run it once again it says only "List of devicies attached".
Click to expand...
Click to collapse
run this command when you are in fastboot mode
Code:
fastboot devices
and not adb

samersh72 said:
run this command when you are in fastboot mode
Code:
fastboot devices
and not adb
Click to expand...
Click to collapse
okay did it and now it showed a key. What should i do now ( i am really newbie in this things conected with flashing via adb. I always flash via recovery.) I already did fastboot flash recovery recovery.img and flashed the cwm 6.0.4.5

wojwem19 said:
okay did it and now it showed a key. What should i do now ( i am really newbie in this things conected with flashing via adb. I always flash via recovery.) I already did fastboot flash recovery recovery.img and flashed the cwm 6.0.4.5
Click to expand...
Click to collapse
now follow this guide to flash stock http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701

samersh72 said:
now follow this guide to flash stock http://forum.xda-developers.com/google-nexus-5/general/tutorial-how-to-flash-factory-image-t2513701
Click to expand...
Click to collapse
i love you man <3