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[Q] Nexus S 4G Bootloader Lock

My question is, if you relock the bootloader on ns4g after unlocking and rooting, will you loose the root or the ability to flash any custom roms or mods?

chrissboston said:
My question is, if you relock the bootloader on ns4g after unlocking and rooting, will you loose the root or the ability to flash any custom roms or mods?
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Click to collapse
No. You can still flash anything via custom recovery.
You will, however, lose the ability to flash a custom recovery if it is overwritten via fastboot. If you have root access you can still use the flash_image binary from the device or flash via Rom Manager. If you lose root and recovery though you will have to unlock again.

chrissboston said:
My question is, if you relock the bootloader on ns4g after unlocking and rooting, will you loose the root or the ability to flash any custom roms or mods?
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This is a dev phone, so you can lock and unlock the bootloader as you please. You will not be able to switch the recovery with it locked.
Sent from my PC36100 using XDA Premium App

Rem3Dy said:
If the bootloader is locked you can not flash roms. This is a dev phone, so you can lock and unlock the bootloader as you please.
Sent from my PC36100 using XDA Premium App
Click to expand...
Click to collapse
Yes you can - via a custom recovery you can flash whatever you want.
Pre 2.3.3 you could fastboot boot a custom recovery and flash whatever you wanted without even touching the stock recovery. That was never the intended functionality though and 2.3.3 took that ability away again (so that you now have to initially unlock in order to flash a custom recovery).

Thanks
Thank you Rem3Dy & krohnjw, I understand now. And thanks for the tip about flashing through rom manager krohnjw, its very usefull and easier instead of flashing manually.

chrissboston said:
And thanks for the tip about flashing through rom manager krohnjw, its very usefull and easier instead of flashing manually.
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And is causing problems en masse.

rentaric said:
And is causing problems en masse.
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Click to collapse
erasing before flashing seems to help, I just use fastboot though as it's easy and doesn't have any issues. I don't recommend locking the bootloader if you plan on flashing, but it is possible.
Sent from my Nexus S using XDA Premium App

I agree with you krohnjw as sometimes when you don't do a full wipe the new flashed rom gives you problems, specially with FC's, but I've never had a problem when flashing after doing a full wipe.

How to prevent data wipe while Rooting nexus s I9023 ?

I'm about to root my nexus s for the first time. I'm running Android 4.0.4. Quick nooby question..will I lose the contacts n data on my phone memory if I root by flashing superuser with CWM recovery..If yes then is there a way to create a NAND backup prior to rooting my device.
Thanks a lot for putting up with my nooby question. Pls help!!!
Sent from my Nexus S using XDA

zombiedroid666 said:
will I lose the contacts n data on my phone memory if I root by flashing superuser with CWM recovery..
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Click to collapse
Take a look in you gmail contact list. It will be synced when you start up a "clean" Android phone. If you want to keep your SMS's, you could try a program like SMS Backup +.

root it without unlocking bootloader, it won't wipe your device...

If you have Google account, your contacts will be sync by Gmail.
App data can be backup by Titanium Backup.
Root will not wipe ur data.
But unlocking bootloader does.
Also backup before root is recommended
Sent from my Nexus S using xda premium

savantist said:
root it without unlocking bootloader, it won't wipe your device...
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Click to collapse
How is that possible in 4.0.4?

As stated previously, once you unlock bootloader your data will be erased. And yes, once you install custom recovery (CWM), you can do a nandroid backup through it.
Sent from my Nexus S using XDA

[Q] how to flash a custom recovery without rooting

Hi i have a cellphone no rooted but locked by lockscreen pin. I need to save the data. The cellphone does not have usb debuggin on
I tried to install file manager .zip via stock recovery to remover the key gesture.but it does not let me do it. So my question is how can i install a custom recovery via fastboot or zip. Without be rooted.and not lossing my personal data
Gmail.dont work
Its a costumer cellphone..

Efrencalvario said:
Hi i have a cellphone no rooted but locked by lockscreen pin. I need to save the data. The cellphone does not have usb debuggin on
I tried to install file manager .zip via stock recovery to remover the key gesture.but it does not let me do it. So my question is how can i install a custom recovery via fastboot or zip. Without be rooted.and not lossing my personal data
Gmail.dont work
Its a costumer cellphone..
Click to expand...
Click to collapse
Just put on a recovery through Odin.
Sent from my SAMSUNG-SGH-T769 using Tapatalk 2

Somcom3X said:
Just put on a recovery through Odin.
Sent from my SAMSUNG-SGH-T769 using Tapatalk 2
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Ican you please tell me how??

Efrencalvario said:
Ican you please tell me how??
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Click to collapse
http://forum.xda-developers.com/showthread.php?t=1591622

Romman0 said:
http://forum.xda-developers.com/showthread.php?t=1591622
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just to make sure and sorry if i ask this again... will it work with a non root devices ? and is there any risk to erase all my personal data?

Efrencalvario said:
just to make sure and sorry if i ask this again... will it work with a non root devices ? and is there any risk to erase all my personal data?
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Click to collapse
No root needed, it will flash the recovery from download mode. It won't touch your data.

Efrencalvario said:
just to make sure and sorry if i ask this again... will it work with a non root devices ? and is there any risk to erase all my personal data?
Click to expand...
Click to collapse
As Romman0 said, your data will be safe. The bootloader contains boot info for 3 different partitions; Android, Recovery, and Download/Odin Mode. Modifying one partition doesn't necessarily modify another. If you find an Odin package that is only the recovery image, Android partition (where root is located, if rooted) is unchanged
Sent from my SGH-I777 using xda app-developers app

A little help with my moto g

I have had my moto g for a while now and I am quite tempted to root it. But then having an unlocked bootloader would not allow me to receive any Ota updates if I am not wrong. Is there any way to receive updates with an unlocked bootloader because once I unlock my bootloader, I am not going to relock it again..

r1punjay said:
I have had my moto g for a while now and I am quite tempted to root it. But then having an unlocked bootloader would not allow me to receive any Ota updates if I am not wrong. Is there any way to receive updates with an unlocked bootloader because once I unlock my bootloader, I am not going to relock it again..
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Click to collapse
You will get OTA updates in rooted phone and you can Install it if you have stock recovery... You can't install OTA update If you have custom recovery like cwm or twrp...
Sent from my XT1032 using XDA Premium 4 mobile app

padhu1989 said:
You will get OTA updates in rooted phone and you can Install it if you have stock recovery... You can't install OTA update If you have custom recovery like cwm or twrp...
Sent from my XT1032 using XDA Premium 4 mobile app
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So that means before updating I need to revert back to the stock recovery before updating.Also can I download the entire Asian stock firmware and then flash only the recovery using adb?Thanks for your help.

r1punjay said:
So that means before updating I need to revert back to the stock recovery before updating.Also can I download the entire Asian stock firmware and then flash only the recovery using adb?Thanks for your help.
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Click to collapse
Flashing recvery wont work, you need t go back to full stock rom , update it, and do flash custom recoery and root it.. I tried long back flashing stock recovery and update, but that didnt work for me...

padhu1989 said:
Flashing recvery wont work, you need t go back to full stock rom , update it, and do flash custom recoery and root it.. I tried long back flashing stock recovery and update, but that didnt work for me...
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Thanks..
Also is there any possibility to keep a backup of all apps along with data included before unlocking bootloader and rooting?

r1punjay said:
Thanks..
Also is there any possibility to keep a backup of all apps along with data included before unlocking bootloader and rooting?
Click to expand...
Click to collapse
Use Go Backup Pro.. or any good backup app in play store..

Install custom recovery without usb debuging?

Hi
Is there any way to install a custom recovery on a Sony L without USB debugging?
Actually it doesn't boot to android and i need recovery and aroma fm to copy some files of mine.
Can i install cwm or twrp or... by flash tools or etc?
I'm on stock rom with locked bootloader probabely

HamidZaeri said:
Hi
Is there any way to install a custom recovery on a Sony L without USB debugging?
Actually it doesn't boot to android and i need recovery and aroma fm to copy some files of mine.
Can i install cwm or twrp or... by flash tools or etc?
I'm on stock rom with locked bootloader probabely
Click to expand...
Click to collapse
when your bootloader is locked...you will need to flash stockrom
Sent from my Xperia T using XDA Free mobile app

SdtBarbarossa said:
when your bootloader is locked...you will need to flash stockrom
Sent from my Xperia T using XDA Free mobile app
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Click to collapse
Can i unlock BL without wiping my data and access to android.
My C2105 situation:
- No access to android system (forgotten pattern)
- Stock ROM and probably locked Bootloader
- Need to install a custom recovery without wiping my data
???

HamidZaeri said:
Can i unlock BL without wiping my data and access to android.
My C2105 situation:
- No access to android system (forgotten pattern)
- Stock ROM and probably locked Bootloader
- Need to install a custom recovery without wiping my data
???
Click to expand...
Click to collapse
if you flash stockrom with flashtool your sdcard0 will not getting overrided
Sent from my Xperia T using XDA Free mobile app

SdtBarbarossa said:
if you flash stockrom with flashtool your sdcard0 will not getting overrided
Sent from my Xperia T using XDA Free mobile app
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What about my forgotten pattern?

HamidZaeri said:
What about my forgotten pattern?
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Click to collapse
if you remember the security question try that...
Sent from my Xperia T using XDA Free mobile app

SdtBarbarossa said:
if you remember the security question try that...
Sent from my Xperia T using XDA Free mobile app
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Click to collapse
No, I need a method to install a custom recovery without any Root or Usb Debugging and only by flash tools or fastboot mode or etc.

HamidZaeri said:
No, I need a method to install a custom recovery without any Root or Usb Debugging and only by flash tools or fastboot mode or etc.
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unlock your bootloader....then flash a custom kernel with recovery.... but bro your phone will not boot then... but you can acess all your files with aroma-fm
Sent from my Xperia T using XDA Free mobile app

SdtBarbarossa said:
unlock your bootloader....then flash a custom kernel with recovery.... but bro your phone will not boot then... but you can acess all your files with aroma-fm
Sent from my Xperia T using XDA Free mobile app
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Click to collapse
Thanks
"unlock your bootloader"
Doesn't it wipe my data?
"then flash a custom kernel with recovery"
what recovery you mean? How should I install a custom recovery first?

HamidZaeri said:
Thanks
"unlock your bootloader"
Doesn't it wipe my data?
"then flash a custom kernel with recovery"
what recovery you mean? How should I install a custom recovery first?
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Click to collapse
unlocking your bootloader will only wipe all apps and settings...i guess you want your datas from sdcard0 (internal storage) like pictures eg? if you want a special app or app datas....better remember your pattern lock
Sent from my Xperia T using XDA Free mobile app

SdtBarbarossa said:
unlocking your bootloader will only wipe all apps and settings...i guess you want your datas from sdcard0 (internal storage) like pictures eg? if you want a special app or app datas....better remember your pattern lock
Sent from my Xperia T using XDA Free mobile app
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Click to collapse
And What about the second part:
"then flash a custom kernel with recovery"
what recovery you mean? How should I install a custom recovery first?

HamidZaeri said:
And What about the second part:
"then flash a custom kernel with recovery"
what recovery you mean? How should I install a custom recovery first?
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Click to collapse
after unlocking bootloader flash TZ4.14 boot.img with flashtool (simply extract boot.img from the zip and flash with flashtool)
TZ4.14 have a inbuild philz recovery
Sent from my Xperia T using XDA Free mobile app

Flashing stock ftf doesn't wipe your internal storage. If you want to save your apps too, then uncheck DATA partition while flashing. Your phone will boot, password/pattern will be removed and all settings set to default.

abhi007.john said:
Flashing stock ftf doesn't wipe your internal storage. If you want to save your apps too, then uncheck DATA partition while flashing. Your phone will boot, password/pattern will be removed and all settings set to default.
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Click to collapse
Are you sure about that? Have you tried it?
You mean it WIPE nothing but only pattern and pass?

HamidZaeri said:
Are you sure about that? Have you tried it?
You mean it WIPE nothing but only pattern and pass?
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Click to collapse
Yes, I have done it countless times. It wipes the system partition thus removing the pattern lock and the system apps.
User apps are not removed if you uncheck the data partition.

abhi007.john said:
Yes, I have done it countless times. It wipes the system partition thus removing the pattern lock and the system apps.
User apps are not removed if you uncheck the data partition.
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Click to collapse
tried that. didn't work.
pattern saved in data partition.

HamidZaeri said:
tried that. didn't work.
pattern saved in data partition.
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Click to collapse
In that case you should unlock your bootloader and install a custom recovery