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[Q] Nexus S 4G won't boot past Google Screen!!

I tried rooting my phone, but when I flashed CWM my Nexus S stopped booting... it freezes on the Google screen in the intro. I can boot into Fastboot, and cwm, but I cant connect the Internal memory to the computer without it booting like it is supposed to. Does anybody know of anything I can do to fix my phone and bring it back to stock??

There are guides for returning to stock stickied in the Nexus S 4G Android Development forum.
Before you do that though, try flashing a different recovery, like the one linked to here or here.
Btw, which guide did you use? You're not the first person to have this problem, and it's really bugging me (though probably not as much as it's bugging you :-o).

Maximilian Mary: I tried to post the link, but since I'm a new member I have to wait 8 posts before I can post a URL.... :/
I will try a different recovery, but how would I flash a rom if I can connect my phone via usb mount?

deadzunehd said:
Maximilian Mary: I tried to post the link, but since I'm a new member I have to wait 8 posts before I can post a URL.... :/
Click to expand...
Click to collapse
What's the title of the thread?
.
I will try a different recovery, but how would I flash a rom if I can connect my phone via usb mount?
Click to expand...
Click to collapse
I'm a little out of my depth here, but I think it's
fastboot flash system system.img.
You don't need to put the rom image on the sdcard. Just put it in the same folder as fastboot.

It was titled "How to Root Nexus S!"
And I will try to flash recovery and try that rom command, thank you )

deadzunehd said:
It was titled "How to Root Nexus S!"
And I will try to flash recovery and try that rom command, thank you )
Click to expand...
Click to collapse
Hmmm. I can't find that exact title. Could you pm me the link?

deadzunehd said:
thank you )
Click to expand...
Click to collapse
There's a button for that.

I got the link. Thanks. I looks like you flashed a boot image that is incompatible with your phone. That guide was for the T-Mobile Nexus S. (Why they're screwing with the boot.img to begin with, I really don't understand.)
Download the attached file, and unzip it to the same folder as fastboot. The md5 sum is d4a9508f9321eb25df3383f00f571e8b. Then
Code:
fastboot flash boot boot.img
You'll probably also want to use one of the recoveries listed above to
Code:
fastboot flash recovery recovery.img
, but leave system alone for now. Flash that only as a last resort.

deadzunehd said:
I tried rooting my phone, but when I flashed CWM my Nexus S stopped booting... it freezes on the Google screen in the intro. I can boot into Fastboot, and cwm, but I cant connect the Internal memory to the computer without it booting like it is supposed to. Does anybody know of anything I can do to fix my phone and bring it back to stock??
Click to expand...
Click to collapse
I had this problem after flashing the wrong ROM onto my phone. I got the phone back to stock using ODIN.
My thread can be found here
http://forum.xda-developers.com/showthread.php?p=14172335#post14172335
hope it helps

Acnescar said:
I had this problem after flashing the wrong ROM onto my phone. I got the phone back to stock using ODIN.
My thread can be found here
http://forum.xda-developers.com/showthread.php?p=14172335#post14172335
hope it helps
Click to expand...
Click to collapse
OMG!! im having the same issue. could you please post the link for ODIN so i can return to stock and take it from there please? I rely on my phone so much and i need it asap thank you.

same problem with me.
but in my case, the phone not only freeze after the google logo before boot. I tried several times to pull the battery and start the phone again, it took several times until the phone can boot normally again.
After that, my nexus s can work as usual. but it only takes 3-4 hour until it freeze/hangs or reboot automatically and show image of green robot lay down with red alert triangle...
sometimes I noticed all application force closed like gmail, gtalk, etc. (its a basic apps instead of 3rd party app)
History :
- root GB 2.37 using superoneclick
- upgrade OTA to ICS 4.04
- problem happens
- root using guide : nexusshacks.com
- unroot using guide : nexusshacks.com
- back to factory setting on GB 2.34
- upgrade OTA to ICS 4.04
- Still got that problem.....
I'm using Nexus S 4G Sprint, pls help me guys...

nexus s won't boot
I had the same problem and read elsewhere that heating the phone with a hairdryer solves the problem.
I must say, indeed it did.
I removed the battery and the SIM card, then heated up the phone (so it really feels warm) put back the battery and sim and simsalebim the phone started again. and is still working since (now already a few day's)
It seems that a component in the phone is heat sensitive, the question in my mind is when will this show again and do I need to consider buying a new phone.
But sofar it works
PS I also tried hard reset factory reset the lot, but in the end only heating up helped.
Good luck, David

I fixed this problem! but I had to wipe all user data by rooting it using nexusrootICS. It finally boots up and the phone works now... that's all I need.

HELP! Factory /system

Hi guys, im in desperate need of some XDA professional help.
i tried reverting my nexus s back to the stock rom but somehow ended up clicking on Factory /system. (im a dumbass, i know. but i can only blame this other site for giving bad instructions!)
i can access the CWM bootloader, and i can enter recovery mode.
but every time i try to mount the USB storage through Recovery (so i can put a stock ROM -the nandroid stuff - in there and zip it), i get an error. it says File not found.
Now, I can't access my phone at all.
it's pretty much like a computer with no OS.
is there still a way for me to fix this? or i'm i terribly, terribly screwed?
hope to hear from you guys soon!
-cristina

just do a full wipe if you've deleted your data already:
- do factory reset, wipe cache
then under mounts and storage: format everything except your sd-card (photo's etc will be lost)
Try to copy your file again and flash... hope this helps

i have your awnser
nainna said:
Hi guys, im in desperate need of some XDA professional help.
i tried reverting my nexus s back to the stock rom but somehow ended up clicking on Factory /system. (im a dumbass, i know. but i can only blame this other site for giving bad instructions!)
i can access the CWM bootloader, and i can enter recovery mode.
but every time i try to mount the USB storage through Recovery (so i can put a stock ROM -the nandroid stuff - in there and zip it), i get an error. it says File not found.
Now, I can't access my phone at all.
it's pretty much like a computer with no OS.
is there still a way for me to fix this? or i'm i terribly, terribly screwed?
hope to hear from you guys soon!
-cristina
Click to expand...
Click to collapse
DONT WORRY!
check this thread: http://forum.xda-developers.com/showthread.php?t=1445621
hit the thanks button if this helped
find the right stock images. enter in fatsboot. plug to your pc
open a command prompt
and flash the stock image via fastboot (google it)

http://forum.xda-developers.com/showthread.php?t=1785672

.
thank you for your replies, everyone!
i will have to try this =D
although, i was able to solve the problem by using ADB to transfer files to my phone. specifically the Nandroid back up file. now I am running the rooted stock 2.3.1
i am having problems updating it to higher versions though! so i just might have to return to the unrooted stock version. =D i'll have to try it out =D
again, many thanks!

nainna said:
thank you for your replies, everyone!
i will have to try this =D
although, i was able to solve the problem by using ADB to transfer files to my phone. specifically the Nandroid back up file. now I am running the rooted stock 2.3.1
i am having problems updating it to higher versions though! so i just might have to return to the unrooted stock version. =D i'll have to try it out =D
again, many thanks!
Click to expand...
Click to collapse
Use the link I gave you. It explains how to flash the newest OTA for your phone. This guide will give you stock rooted.
Sent from my Nexus S using xda premium

[Q] No OS installed i9023

Hello,
I tinkered with its Nexus and after a successful root I installed Chainfire and then the phone slashed and pulled out, and flashlights, I get just google logo with unlocked locks.
So I want to ask if anyone know how pres Nexus root toolkit Record android back.
NRT over my phone normally communicates
Please advice as soon as possible because I am without a phone. thanks a lot

pikovyeso said:
Hello,
I tinkered with its Nexus and after a successful root I installed Chainfire and then the phone slashed and pulled out, and flashlights, I get just google logo with unlocked locks.
So I want to ask if anyone know how pres Nexus root toolkit Record android back.
NRT over my phone normally communicates
Please advice as soon as possible because I am without a phone. thanks a lot
Click to expand...
Click to collapse
Wrong section.
But since you have your phone unlocked, you can do many things. Which rom do you have?

polobunny said:
Wrong section.
But since you have your phone unlocked, you can do many things. Which rom do you have?
Click to expand...
Click to collapse
I have cyanogenmod 10 night, but im newbie and trying repair mysel, so i delete all sdcard
:crying:
Thanks for reply

pikovyeso said:
I have cyanogenmod 10 night, but im newbie and trying repair mysel, so i delete all sdcard
:crying:
Thanks for reply
Click to expand...
Click to collapse
Boot into recovery. Then go to Mounts and Storage, and mount USB storage. Connect your phone to your computer and your SDcard contents should show.
Transfer the latest CM10 nightly to your SDcard. Then flash it and hopefully all should be fine.

polobunny said:
Boot into recovery. Then go to Mounts and Storage, and mount USB storage. Connect your phone to your computer and your SDcard contents should show.
Transfer the latest CM10 nightly to your SDcard. Then flash it and hopefully all should be fine.
Click to expand...
Click to collapse
THX your god, it works fine my phone is back :good:

Restore stock recovery / unroot without restore

Good Evening,
AT&T LG G2 rooted, TWRP. Have installed a few different roms but mostly used PA. All of a sudden the phone started experiencing issues with cell Data. So I did a clean install of PA and then had issues with BT, did another clean install and had issues with Wifi.
So I decided ok maybe its time to go back to stock. Hook it up to a win7 computer... Device manager doesn't see it at all (doesn't show up AT ALL). Says charging and that is it, does not recognize that it is hooked up to a computer. Have tried several different computers now and several different USB cables. The only way I could try other roms was downloading via wifi. Tried a stock rom and still experiencing issues.
I think there is something wrong with the phone so I want to get it warrantied, but without hooking it up to a computer I can not figure out any way to remove the custom recovery or revert it to stock.No matter what I do no computer will even recognize the phone is connected, let alone trying to install drivers. Device manager just straight up does not see it.
Any help or suggestions is GREATLY appreciated. Any way to remove recovery/root without a PC connection?
UPDATE: Here was my solution
Took some work but I figured out a way to do it in case anyone else ever runs in to this:
(make sure you are stock rom or on a stock rooted rom before proceeding)
First download the stock recovery.img on the device.
http://downloads.codefi.re/autoprime...10B_Partitions
Then download/open Terminal Emulator and type:
su
Then
cd /sdcard/downloads
Then
dd if=/sdcard/downloads/recovery.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery
That replaces TWRP/CWM with the stock recovery.
Then open supersu, go to settings, towards the bottom is full unroot.
Yay no more custom recovery or root on stock rom.

If you are planning on getting warranty you need to use download mode and the back to stock guide also that is the best way to flash to stock and get rid of problems
Sent from LG-G2 D800 on AEONFLEX 4.4.2

XxZombiePikachu said:
If you are planning on getting warranty you need to use download mode and the back to stock guide also that is the best way to flash to stock and get rid of problems
Sent from LG-G2 D800 on AEONFLEX 4.4.2
Click to expand...
Click to collapse
Agreed, problem is the computer will not see the phone, so I can't use the program to flash it back to stock.
It's not just a driver or com issue, the computer does not see it AT ALL. Device manager doesn't see a new device when I plug it in (in OS, in Download mode, nothing).

crawlgsx said:
Agreed, problem is the computer will not see the phone, so I can't use the program to flash it back to stock.
It's not just a driver or com issue, the computer does not see it AT ALL. Device manager doesn't see a new device when I plug it in (in OS, in Download mode, nothing).
Click to expand...
Click to collapse
Have you tried different usb ports also very important are you using original cable that came with the phone in my case if I try many of the different cables I have, only the stock one works for download mode
Sent from LG-G2 D800 on AEONFLEX 4.4.2

XxZombiePikachu said:
Have you tried different usb ports also very important are you using original cable that came with the phone in my case if I try many of the different cables I have, only the stock one works for download mode
Sent from LG-G2 D800 on AEONFLEX 4.4.2
Click to expand...
Click to collapse
Different usb ports, different computers, different cables (stock one included). No luck. Phone says download mode then goes to "firmware update" and says at the bottom B53 then "ROOTED" in red letters. Nothing appears in device manager.
In android regarless of rom if I plug it in it doesn't act like I plugged it in to a computer, just charging. Again nothing in device manager regardless of USB debugging or not.
currently have twrp 2.6.3.3, running D80210b 4.2.2, with baseband M8974A-AAAANAZM-1.0.190034

What I really need to know is if there is any way to restore stock recovery and remove root without using that method (ie using Terminal Commands or flashing a package, since I can download via wifi).
I am pretty sure this phone has a messed up USB port, but I don't really want to send it in with it rooted/twrp on it .

crawlgsx said:
What I really need to know is if there is any way to restore stock recovery and remove root without using that method (ie using Terminal Commands or flashing a package, since I can download via wifi).
I am pretty sure this phone has a messed up USB port, but I don't really want to send it in with it rooted/twrp on it .
Click to expand...
Click to collapse
Did you try restore & reset functionality on the phone? I had somewhat similar issue with the plug & pop feature (although my laptop recognized the phone under Devices & Printer but it didn't show it as a separate drive) when I flashed CM11 but then I did a full factory reset, everything goes back to normal. Also you might try uninstall LG driver and reinstall it. Hope this help.

paulthuong said:
Did you try restore & reset functionality on the phone? I had somewhat similar issue with the plug & pop feature (although my laptop recognized the phone under Devices & Printer but it didn't show it as a separate drive) when I flashed CM11 but then I did a full factory reset, everything goes back to normal. Also you might try uninstall LG driver and reinstall it. Hope this help.
Click to expand...
Click to collapse
Unfortunately it is not a driver issue, it doesn't show up in device manager at all, on several machines.
I have tried multiple different roms, factory rests, even tried ADB sideloading, no luck.

i remember there's this app called Auto Rec that has an option to unroot the device or something like that.

Took some work but I figured out a way to do it in case anyone else ever runs in to this:
First download the stock recovery.img on the device.
http://downloads.codefi.re/autoprime/LG/LG_G2/VS980/Stock_Firmware/10B_Partitions
Then download/open Terminal Emulator and type:
su
Then
cd /sdcard/downloads
Then
dd if=/sdcard/downloads/recovery.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery
That replaces TWRP/CWM with the stock recovery.
Then open supersu, go to settings, towards the bottom is full unroot.
Yay no more custom recovery or root on stock rom. (this was after flashing a rooted stock rom by downloading it on the device itself since I had no USB).

crawlgsx said:
Took some work but I figured out a way to do it in case anyone else ever runs in to this:
First download the stock recovery.img on the device.
http://downloads.codefi.re/autoprime/LG/LG_G2/VS980/Stock_Firmware/10B_Partitions
Then download/open Terminal Emulator and type:
su
Then
cd /sdcard/downloads
Then
dd if=/sdcard/downloads/recovery.img of=/dev/block/platform/msm_sdcc.1/by-name/recovery
That replaces TWRP/CWM with the stock recovery.
Then open supersu, go to settings, towards the bottom is full unroot.
Yay no more custom recovery or root on stock rom. (this was after flashing a rooted stock rom by downloading it on the device itself since I had no USB).
Click to expand...
Click to collapse
So did this worked for you? And what about your warranty?
I have an issue with the vibration and I am thinking of going to stock and send my G2 to LG.

petran_7 said:
So did this worked for you? And what about your warranty?
I have an issue with the vibration and I am thinking of going to stock and send my G2 to LG.
Click to expand...
Click to collapse
It worked perfectly and I got the phone exchanged without any hassle, but if your USB is working there are plenty of better ways to return to stock. This was an option I had to use because of USB not functioning. I mean this would allow you to unroot without wiping/restoring but if your going to send the phone in anyway you might as well wipe it as well.

crawlgsx said:
It worked perfectly and I got the phone exchanged without any hassle, but if your USB is working there are plenty of better ways to return to stock. This was an option I had to use because of USB not functioning. I mean this would allow you to unroot without wiping/restoring but if your going to send the phone in anyway you might as well wipe it as well.
Click to expand...
Click to collapse
I understand and thank you for the reply.
I am a bit afraid of the other methods I saw and this one seems easier
I have a question if you can answer to me.
I restored the official rom from TWRP and did all the process you wrote. Is there any way to check if now I have the stock recovery?
And to see if I am now ready to send my phone to LG?
P.S. "I will hit the thanks button tomorrow because I have reached the limit of 8 thanks per day "

petran_7 said:
I understand and thank you for the reply.
I am a bit afraid of the other methods I saw and this one seems easier
I have a question if you can answer to me.
I restored the official rom from TWRP and did all the process you wrote. Is there any way to check if now I have the stock recovery?
And to see if I am now ready to send my phone to LG?
P.S. "I will hit the thanks button tomorrow because I have reached the limit of 8 thanks per day "
Click to expand...
Click to collapse
Just reboot to recovery, you should get the stock LG recovery instead of TWRP. If you unrooted as well, you are good go. Glad I could help! No worries on the thanks .

crawlgsx said:
Just reboot to recovery, you should get the stock LG recovery instead of TWRP. If you unrooted as well, you are good go. Glad I could help! No worries on the thanks .
Click to expand...
Click to collapse
When I am going to recovery, appears the Factory hard reset option.
I did it and it shows up again when I am trying to boot to recovery.
Again thank you for your replies and the time you spend. :highfive:

petran_7 said:
When I am going to recovery, appears the Factory hard reset option.
I did it and it shows up again when I am trying to boot to recovery.
Again thank you for your replies and the time you spend. :highfive:
Click to expand...
Click to collapse
Awesome sounds like you got it. :good:

So I have to congratulate and thank once more this man @crawlgsx for this great thread.
It worked on my D802 (international model) and got it repaired by the official service center of LG in Greece.
Great work, with no need of PC and difficult processes.

Noob question, but will this allow users to take OTA updates? Running stock rooted right now and really don't want revert to stock to get latest ota, but this seems pretty seamless. Thanks.

thestrangebrew said:
Noob question, but will this allow users to take OTA updates? Running stock rooted right now and really don't want revert to stock to get latest ota, but this seems pretty seamless. Thanks.
Click to expand...
Click to collapse
I believe that in order to take OTAs you must be on stock rom and stock recovery. Be rooted will not be a problem if you have these stock but when OTA installed you will lose root access.
If I am wrong, correct me someone.

Hi
Sorry to bump this thread but I need to unroot my AT&T G2 800 so get the warranty.. I had taken the stock backup using twrp.
Can I restore the restore it using twrp ? and do i need to install Terminal emulator on my restored stock rom and then do the commands ?
Are there any chances of bricking the phone ?

Added line to build.prop....now bricked?

So I wanted to wake up my nexus 5 with the volume buttons. Looking online I found that you could add code to your build.prop.. which I did.. then rebooted...
Now my phone does 'nothing'... When I press the power button it vibrates 2 times and nothing happens...
Help!.. Have no idea what i can do to get things running again
P.S. I've got Slimkat ROM running

S.Phrenic said:
So I wanted to wake up my nexus 5 with the volume buttons. Looking online I found that you could add code to your build.prop.. which I did.. then rebooted...
Now my phone does 'nothing'... When I press the power button it vibrates 2 times and nothing happens...
Help!.. Have no idea what i can do to get things running again
P.S. I've got Slimkat ROM running
Click to expand...
Click to collapse
Can you get into bootloader? Recovery?

Lethargy said:
Can you get into bootloader? Recovery?
Click to expand...
Click to collapse
Currently, nope... I'm trying.. I see that sometimes the screen is on... sometimes I see the Google Logo... but Can't fully figure out when that happens
[EDIT]YES!!!!!!!!! Got in.!!!!!!... *pfieuw*.. now what do i do?

Reflash the factory with the nexus root toolkit
Croc on Nexus 5 with Mahdi + ElementalX

Croc97 said:
Reflash the factory with the nexus root toolkit
Croc on Nexus 5 with Mahdi + ElementalX
Click to expand...
Click to collapse
Please don't use toolkits.

Croc97 said:
Reflash the factory with the nexus root toolkit
Croc on Nexus 5 with Mahdi + ElementalX
Click to expand...
Click to collapse
Don't exaclty know what you mean with that..
I've downloaded Kwongger's Nexus 5 All-In-One Toolkit , I hope that's what you meant. And then it says it's missing the hammerhead.image.zip... which I assume is the stockROM?.. If so, shouldn't I Reflash to Slimkat?
Sorry for being such a Noob. I've had Samsung for years and just switched to Nexus (bought it last week). Still need to learn my way around things

S.Phrenic said:
Don't exaclty know what you mean with that..
I've downloaded Kwongger's Nexus 5 All-In-One Toolkit , I hope that's what you meant. And then it says it's missing the hammerhead.image.zip... which I assume is the stockROM?.. If so, shouldn't I Reflash to Slimkat?
Sorry for being such a Noob. I've had Samsung for years and just switched to Nexus (bought it last week). Still need to learn my way around things
Click to expand...
Click to collapse
Read my reply to your PM and the 2nd link in my signature, then refer to the first link if you need

Lethargy said:
Read my reply to your PM and the 2nd link in my signature, then refer to the first link if you need
Click to expand...
Click to collapse
Let me start with, Thank you so much for your time
However, It seems like I'm unable to install the right drivers on my PC for my phone and adb doesn't detect my device (which is strange as CF-auto-root did see the device and worked fine)
I walked through multiple tutorials about installing drivers. Actually have windows detecting my phone fine (I see it in device manager) and I've reinstalled google USB drivers multiple times now, rebooting my PC and deleting drivers and reinstalling them
I've justed factory reset my phone, but that just got me to a Google logo stuck (which I read about in your link in your signature)..
Because adb doesn't detect my device I'm unable to pull build.prop... which means I feel stuck again.
Would you have a direction for me to go towards to continue my journey through Nexus5-Land?

S.Phrenic said:
Let me start with, Thank you so much for your time
However, It seems like I'm unable to install the right drivers on my PC for my phone and adb doesn't detect my device (which is strange as CF-auto-root did see the device and worked fine)
I walked through multiple tutorials about installing drivers. Actually have windows detecting my phone fine (I see it in device manager) and I've reinstalled google USB drivers multiple times now, rebooting my PC and deleting drivers and reinstalling them
I've justed factory reset my phone, but that just got me to a Google logo stuck (which I read about in your link in your signature)..
Because adb doesn't detect my device I'm unable to pull build.prop... which means I feel stuck again.
Would you have a direction for me to go towards to continue my journey through Nexus5-Land?
Click to expand...
Click to collapse
If you're using Windows 8, 8.1 or 8.1U1 you'll need to disable driver signature enforcement.
Try flashing the factory images in fastboot?

Could somebody not just make a flashable zip with the correct build.prop?
Failing that, just reflash the ROM.

Lethargy said:
If you're using Windows 8, 8.1 or 8.1U1 you'll need to disable driver signature enforcement.
Try flashing the factory images in fastboot?
Click to expand...
Click to collapse
It seems like it worked! Completly back to StockROM but the phone works again. Thank you so much for your time.
And you're right, I should learn to read and understand what I'm doing before I do anything with my phone. Sorry for the inconvenience and thank you for the help you've given.

S.Phrenic said:
It seems like it worked! Completly back to StockROM but the phone works again. Thank you so much for your time.
And you're right, I should learn to read and understand what I'm doing before I do anything with my phone. Sorry for the inconvenience and thank you for the help you've given.
Click to expand...
Click to collapse
Glad you got it worked out

S.Phrenic said:
It seems like it worked! Completly back to StockROM but the phone works again. Thank you so much for your time.
And you're right, I should learn to read and understand what I'm doing before I do anything with my phone. Sorry for the inconvenience and thank you for the help you've given.
Click to expand...
Click to collapse
Glad you got it sorted but, unless you couldn't boot into recovery, you didn't need to go back to stock.
Flashing the correct build.prop or ROM you were using should have sorted it out, without losing any data (you would have lost any system mods if you flashed the ROM again, though).
I'm only mentioning this in case somebody else searches and finds this thread for the same problem.
I've changed the build.prop loads of times on many devices and only once it went into a bootloop. Flashing a build.prop zip sorted it.