Develop Bugs

Removing root and locking bootloader?

Im returning my Gnex as I want it on Sim Free. 500mb data is just not enough.
How do I go about relocking the bootloader and unrooting the phone?
Im on OS X and I rooted and unlocked it with Pauls Superboot

For the moment, you don't.

Can't you just remove the Superuser apk's and then run "fastboot oem lock" (or relock not sure)!
I have never tried this and don't have a device so better wait for someone knowledgeable to post!

Check the Nexus S forums, should be in Dev section on how to re-lock bootloader. It's either relock or lock or re-lock. As for Superuser, download Titanium backup and use it to remove it.

fastboot lock/relock should not work unless it's an engineering device/some exploit is used.

Not sure about removing root, but I can confirm that the following command works fine:
fastboot oem lock

wilskywalker said:
Not sure about removing root, but I can confirm that the following command works fine:
fastboot oem lock
Click to expand...
Click to collapse
Cheers. I thought that might work. Now to unroot it and remove the evidence..
Sent from my Galaxy Nexus using Tapatalk

Evostance said:
Cheers. I thought that might work. Now to unroot it and remove the evidence..
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
I would think a factory reset should return you to stock, if not, I'm sure someone will have the original boot.img and you can flash that via fastboot. Then factory reset again afterwards to be on the safe side. Finally fastboot oem lock and you're ready to go buddy!

Does fastboot oem lock remove the unlocked padlock image on boot?

Yes
Sent from my Galaxy Nexus using xda premium

GSM Galaxy Nexus 4.0.2 Update

I'm using the galaxy nexus gsm version but still have not received the 4.0.2 update. Anyone having the same issue?
Sent from my Galaxy Nexus using XDA App

faizbanafe said:
I'm using the galaxy nexus gsm version but still have not received the 4.0.2 update. Anyone having the same issue?
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Hey as far as I am aware you just have to wait dude. Google don't roll the updates out all at once.

By the way I'm a user from Malaysia..
Sent from my Galaxy Nexus using XDA App

I take no credit for this but what I did was manually update it using a how to on the GNex Toolkit FAQ page. Just make sure to back up your stuff first, so you don't lose anything.
http://forum.xda-developers.com/showpost.php?p=20310934&postcount=2

I'm also stuck on 4.0.1 and the phone says there are no updates for me yet.
From what i hear 4.0.3 is behind the corner already?

Fking1 said:
I'm also stuck on 4.0.1 and the phone says there are no updates for me yet.
From what i hear 4.0.3 is behind the corner already?
Click to expand...
Click to collapse
4.0.3 is on halt at the moment.
4.0.2 is latest GN OTA
use a custom ROM (such as AOKP) to get 4.0.3 now

Interesting why i don't get the 4.0.2 then, anyway what are the changes in this one?

Fking1 said:
Interesting why i don't get the 4.0.2 then, anyway what are the changes in this one?
Click to expand...
Click to collapse
Are you on a yakju build? https://market.android.com/details?...SwxLDEsImRlLmNicnVlZ2cub2ZmaWNpYWx1cGRhdGUiXQ.. use that to check.
If you're not on a 'yakju' build, this may explain why you haven't received the OTA yet.
You can take things into your own hands,
1) Convert your non-yakju device to yakju by fastbooting stock Google images (you can do it to 4.0.2 as well).
Link: http://code.google.com/android/nexus/images.html
2) Flash a custom ROM on 4.0.3 base such as AOKP.
Changes are..... go google it.

thank you

Fking1 said:
thank you
Click to expand...
Click to collapse
Use the thanks button if it has helped I'll be here if you plan to take things into your own hands.

My GNex is a yakjuxw. What do i do? Does fastbooting require root? Will it erase my datas (contacts, apps etc.)?
Sent from my Galaxy Nexus using XDA App

faizbanafe said:
My GNex is a yakjuxw. What do i do? Does fastbooting require root? Will it erase my datas (contacts, apps etc.)?
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Fastboot doesn't but unlocking Fastboot does erase everything so be sure to make a proper backup before doing that.... Or you just wait until Samsung releases the 4.0.2 OTA...
Edit: Oh..., unlocking Fastboot is nescessary for rooting the phone, and that is needed for flashing Yakju in stead of Yakjuxw... There are multiple threads around this forum on how to do that...

Diger36 said:
Fastboot doesn't but unlocking Fastboot does erase everything so be sure to make a proper backup before doing that.... Or you just wait until Samsung releases the 4.0.2 OTA...
Edit: Oh..., unlocking Fastboot is nescessary for rooting the phone, and that is needed for flashing Yakju in stead of Yakjuxw... There are multiple threads around this forum on how to do that...
Click to expand...
Click to collapse
Do i need to use the computer or can i just fastboot firectly from the phone?
Sent from my Galaxy Nexus using XDA App

Look, I would gladly help you out (if I can) but it might help if you provided some more background what you want to do.
faizbanafe said:
My GNex is a yakjuxw. What do i do? Does fastbooting require root? Will it erase my datas (contacts, apps etc.)?
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
It's basically no problem if you ar eon Yakjuxw. It just means that your updates will come from Samsung. Fastboot is just the standard bootloader and gives you some boot options. It is standard accessible through the phone, booting by pressing Volume Up+Volume Down+ Power all at the same time. In order to flash a different ROM (for instance Yakju build) you will have to unlock fastboot (yes that will erase everything).
faizbanafe said:
Do i need to use the computer or can i just fastboot firectly from the phone?
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
If you mean turning your Yakjuxw phone in a Yakju phone then that is pretty good described in this thread: http://forum.xda-developers.com/showthread.php?t=1464881

You do NOT need to be rooted to flash a system image. You only need to unlock the bootloader

EddyOS said:
You do NOT need to be rooted to flash a system image. You only need to unlock the bootloader
Click to expand...
Click to collapse
True, stated that part wrong in my forst post... Sorry about that.

Diger36 said:
Look, I would gladly help you out (if I can) but it might help if you provided some more background what you want to do.
It's basically no problem if you ar eon Yakjuxw. It just means that your updates will come from Samsung. Fastboot is just the standard bootloader and gives you some boot options. It is standard accessible through the phone, booting by pressing Volume Up+Volume Down+ Power all at the same time. In order to flash a different ROM (for instance Yakju build) you will have to unlock fastboot (yes that will erase everything).
If you mean turning your Yakjuxw phone in a Yakju phone then that is pretty good described in this thread: http://forum.xda-developers.com/showthread.php?t=1464881
Click to expand...
Click to collapse
I want the 4.0.2 update. Thats the reason for this post. Waiting for samsung to provide the update might take some time. Or is the update not worth all the hassle to fastboot my GNex? Plus, my GNex would not connect to my windows PC through USB. I thought the update would help.
Sent from my Galaxy Nexus using XDA App

faizbanafe said:
I want the 4.0.2 update. Thats the reason for this post. Waiting for samsung to provide the update might take some time. Or is the update not worth all the hassle to fastboot my GNex? Plus, my GNex would not connect to my windows PC through USB. I thought the update would help.
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Ok... If your GNex won't connect to your PC through USB you might have a different problem. In order to flash Yakju or any other rom you need to be able to connect to PC first in order to unlock the bootloader. To my knowledge there is no way doing that directly from your phone.
To connect your Gnex to your PC you will need the ADB/Fastboot drivers. I myself used the MSKIP tool that you can find here: Mskip Tool You can install the drivers for an USB connection from the tool and it is explained there how you can see if the phone is recognised and connected. From there on it is pretty much self explaining with the tool. I think you might even turn your phone into a Yakju build by using the menu option "Extract and Flash Google Factory Stock Rom". Off course you'll have to unlock the Fastboot bootloader first.
The post rom MSKIP is pretty clear so it might give you all the info you need from here....
Good luck

Try go to settings, storage, then click ... on the bottom right corner, click usb computer connection. See whether MTP box is checked or not.
Btw, melayu eh?
Sent from my Galaxy Nexus using XDA App

harrishanifa said:
Try go to settings, storage, then click ... on the bottom right corner, click usb computer connection. See whether MTP box is checked or not.
Btw, melayu eh?
Sent from my Galaxy Nexus using XDA App
Click to expand...
Click to collapse
Melayu n mkn belacan...hehe
Sent from my Galaxy Nexus using XDA App
Yup, the MTP is ticked.

Wug root

When we unlock and then root. What does the unlock part mean? Thx
Sent from my Galaxy Nexus using Tapatalk 2

cam1john said:
When we unlock and then root. What does the unlock part mean? Thx
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
Unlock the bootloader.

I'm wondering this myself... in traditional cell phone lingo I believe "Unlocked" means not locked to a particular provider. However I believe in this case it means the bootloader is unlocked allowing you to flash other ROMs?
Thats my take but I could be very wrong
(Tried posting this right away but have to wait 5 minutes... guessing someone will answer this definitively before I get to post this)

WoodroweBones said:
I'm wondering this myself... in traditional cell phone lingo I believe "Unlocked" means not locked to a particular provider. However I believe in this case it means the bootloader is unlocked allowing you to flash other ROMs?
Thats my take but I could be very wrong
(Tried posting this right away but have to wait 5 minutes... guessing someone will answer this definitively before I get to post this)
Click to expand...
Click to collapse
You can flash other roms without an unlocked bootloader, such as on the Razr. However, without an unlocked bootloader, you can't use custom kernels.

superstargoddess said:
You can flash other roms without an unlocked bootloader, such as on the Razr. However, without an unlocked bootloader, you can't use custom kernels.
Click to expand...
Click to collapse
Not correct. There is no NAND lock on Samsung devices. You can flash custom kernels even if your bootloader is locked (assuming you have root of course).
All that an unlocked bootloader gives you is the ability to flash or boot images using fastboot.
Sent from my Galaxy Nexus using Tapatalk 2

cam1john said:
When we unlock and then root. What does the unlock part mean? Thx
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
If you are running 4.0.1 or 4.0.2, you can get root without unlocking your bootloader. Not the case on 4.0.4.
As mentioned earlier, unlocking can refer to two things: unlocking the bootloader or unlocking the carrier lock. In this case, we are talking about the bootloader. Most GNex devices are sold carrier-unlocked out of the box.
Sent from my Galaxy Nexus using Tapatalk 2

Back to stock recovery with broken USB port!

Hi guys!
I have a problem with my Galaxy Nexus!
The usb port does not work.
So I need to go to stock for the warranty.
I have locked again the bootloader and have a stock rom.
But I does not have a stock recovery.
How can I change it to stock?

It should be under warranty if its a hardware problem even when rooted.
Correct me if I'm wrong.
Sent from my Galaxy Nexus using Tapatalk 2

I've heard people returning their phones with it being rooted and they didn't even care. I guess if your bootloader is locked and it's on stock rom, I doubt they'll check recovery.

No I dont think so!
Normally the unlocked bootloader viod your warranty.
I fixed that part.Now I need only to fix the recovery image.

Use cloud (dropbox,drive...) to transfer the recovery.img file to ur phone then push it with terminal emulator
Sent from my Galaxy Nexus using xda premium

rayiskon said:
Use cloud (dropbox,drive...) to transfer the recovery.img file to ur phone then push it with terminal emulator
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
which commands should I use?

searius said:
No I dont think so!
Normally the unlocked bootloader viod your warranty.
Click to expand...
Click to collapse
it seems not true with the galaxy nexus..
i read many reports from user that sent their phone (never unlocked or anything) to service, and their phone come back from service unlocked...
basically on a device like the galaxy nexus, where u can unlock and relock the bootloader, void the warranty because the bootloader is unlocked has no sense

my phone was locked but it came back unlocked from service where they replaced the mobo. A few weeks later I sent it back still unlocked and it wasn't a problem.

andQlimax said:
it seems not true with the galaxy nexus..
i read many reports from user that sent their phone (never unlocked or anything) to service, and their phone come back from service unlocked...
basically on a device like the galaxy nexus, where u can unlock and relock the bootloader, void the warranty because the bootloader is unlocked has no sense
Click to expand...
Click to collapse
It does in fact 'void' your warranty though it will HIGHLY depend on where you bought your phone. Some vendors don't care whereas others will be insanely picky about being on absolute stock.

searius said:
Hi guys!
I have a problem with my Galaxy Nexus!
The usb port does not work.
So I need to go to stock for the warranty.
I have locked again the bootloader and have a stock rom.
But I does not have a stock recovery.
How can I change it to stock?
Click to expand...
Click to collapse
Do you still have root?.
If your USB port is broken, the VERY LAST thing you should do before sending you phone in is remove the root files.
Sent from my Galaxy Nexus using Tapatalk 2

efrant said:
Do you still have root? If not, there is no way.
If your USB port is broken, the VERY LAST thing you should do before sending you phone in is remove the root files.
Sent from my Galaxy Nexus using Tapatalk 2
Click to expand...
Click to collapse
As I said beyond I have bootloader locked and stock rom.
The only thing that I have not stock is the recovery.

searius said:
As I said beyond I have bootloader locked and stock rom.
The only thing that I have not stock is the recovery.
Click to expand...
Click to collapse
If you have CWM, then you can flash the stock recovery. If you have a stock recovery but not the right one, there is nothing you can do.

efrant said:
If you have CWM, then you can flash the stock recovery. If you have a stock recovery but not the right one, there is nothing you can do.
Click to expand...
Click to collapse
How can I flash the stock recovery?

searius said:
How can I flash the stock recovery?
Click to expand...
Click to collapse
Flash the attached file in CWM. (Warning: because your USB port does not work and you have no root, once you flash this, it is impossible to go back.)

I have the exact same issue!
Searius, could you post your steps to return to stock ROM and bootloader without using usb... looks like recovery was covered in the last post.
can you issue fastboot commands in the Terminal Emulator? I guess that would make this process easier.

johnny2678 said:
I have the exact same issue!
Searius, could you post your steps to return to stock ROM and bootloader without using usb... looks like recovery was covered in the last post.
can you issue fastboot commands in the Terminal Emulator? I guess that would make this process easier.
Click to expand...
Click to collapse
No, you cannot use fastboot commands in a terminal emulator -- fastboot commands only work when your device is booted into fastboot mode. There is no terminal app in fastboot mode...
Radio: go to the radio thread and download the xxla2 CWM-flashable file and flash it.
Bootlaoder: go to the bootloader thread and download the la03 CWM-flashable file and flash it.
Kernel: I've posted one in one of my guide threads.
Recovery: mentioned above.
What remains is the ROM. If you have a nandroid backup, it would be easiest to try and use that. If not, you can try the attachment:
1) Download the yakju IMM76I factory image from here.
2) Extract the system.img file from within, add it to the root of attachment, and flash it in CWM.

efrant said:
No, you cannot use fastboot commands in a terminal emulator -- fastboot commands only work when your device is booted into fastboot mode. There is no terminal app in fastboot mode...
Click to expand...
Click to collapse
<slaps self> DOH! </slap>
I should have mentioned that I'm on VZW but I get gist of it. Thanks for the support. I'll post back if everything works out.

My phone is at the service center now,
I send it with clockwork recovery installed.
They told me today that they have ordered the part that has fault but does not mentioned nothing if the device wasn't covered by the warranty.
So I'm thinking that I'm not going to pay for the fix.

My warranty replacement comes today so I'm prepping my old one for shipment back to VZW. Is there any way to remove root from your phone? I would usually use the fastboot method but no usb...

johnny2678 said:
My warranty replacement comes today so I'm prepping my old one for shipment back to VZW. Is there any way to remove root from your phone? I would usually use the fastboot method but no usb...
Click to expand...
Click to collapse
Just delete the two files on your device.

Locked Galaxy Nexus

Hi my sister recently bought a Locked Galaxy Nexus I9250, I just wanted to upgrade it to 4.3 and make it openline. How? Safest method? Btw it's android version is 4.0.2 and it is now openline, how can I update it to the latest jellybean while making it openline? THANKS!

slyzzz said:
Hi my sister recently bought a Locked Galaxy Nexus I9250, I just wanted to upgrade it to 4.3 and make it openline. How? Safest method? Btw it's android version is 4.0.2 and it is now openline, how can I update it to the latest jellybean while making it openline? THANKS!
Click to expand...
Click to collapse
There are enough guides on how to do this. Please use google..
!This WILL wipe the internal data!
1. Download the 4.3 Factory image and extract it to your fastboot folder.
2. Reboot into bootloader after you backed up important things to the computer.
3. Type 'fastboot oem unlock' and highlight yes with the volume Keys and select it with the power button.
4. Type 'flash-all.bat'.
5. It'll reboot automatically.
Sent from my Galaxy Nexus using XDA Premium HD app

mrgnex said:
There are enough guides on how to do this. Please use google..
!This WILL wipe the internal data!
1. Download the 4.3 Factory image and extract it to your fastboot folder.
2. Reboot into bootloader after you backed up important things to the computer.
3. Type 'fastboot oem unlock' and highlight yes with the volume Keys and select it with the power button.
4. Type 'flash-all.bat'.
5. It'll reboot automatically.
Sent from my Galaxy Nexus using XDA Premium HD app
Click to expand...
Click to collapse
My Galaxy Nexus is currently locked to a network in our country, I would like to retain it's openline, how?

slyzzz said:
My Galaxy Nexus is currently locked to a network in our country, I would like to retain it's openline, how?
Click to expand...
Click to collapse
Oh locked in that way. I am afraid I have to disappoint you. I read somewhere a guide on how to do it. But I cant remember where. Also I read somewhere that it is impossible. I cant help you here sorry. Google is your friend.
Sent from my Galaxy Nexus using XDA Premium HD app

Here's the thread for sim unlocking
http://forum.xda-developers.com/showthread.php?t=1606982
Make sure u backup the EFS partition (IMEI number is stored there) just in case something goes wrong.