I unlocked my bootloader in the past but I needed to relock to update my stock firmware. I relocked it by flashing this https://www.dropbox.com/s/bq29i4f6vmlxptk/Xperia_U_ST25i_Relock_Bootloader.ftf . Now, is my bootloader still unlocked? If not how can I unlock and after that come to my current setup? Will a TB backup do it?
Anyone?
I understand that by installing stock rom I loose root.
But how do I relock the bootloader?
Why would you want to relock your bootloader? There is no need for it.
To answer your question:
fastboot oem lock
In fastboot mode off course.
Sent from my One Plus One
I'm trying to flash a stock rom on my phone, but it doesn't work. I unlocked OEM unlocking and don't understand why it's not working.
So I have not really been on here since last spring when the g5 was rooted, and once more in the early winter, to do Prime's upgrade to the h83020a.
When I did that upgrade, the 20a, I was just trying to bring the device back to a semi stock state, with locked bootloader, and no root.
It took away root, but the bootloader is still unlocked.
If I just wanted to relock the bootloader, what would I have to do if I am on 20a, no root? In the past I would just dive into the dev section, but I do not have a urge to become an 'expert' on the device, if I am giving it back to Tmob this week.
Can anyone point me to the thread, that would help me with the process of relocking the bootloader, without pooching the phone?
Thanks in advance
Tmobilesucksass said:
So I have not really been on here since last spring when the g5 was rooted, and once more in the early winter, to do Prime's upgrade to the h83020a.
When I did that upgrade, the 20a, I was just trying to bring the device back to a semi stock state, with locked bootloader, and no root.
It took away root, but the bootloader is still unlocked.
If I just wanted to relock the bootloader, what would I have to do if I am on 20a, no root? In the past I would just dive into the dev section, but I do not have a urge to become an 'expert' on the device, if I am giving it back to Tmob this week.
Can anyone point me to the thread, that would help me with the process of relocking the bootloader, without pooching the phone?
Thanks in advance
Click to expand...
Click to collapse
If you're running stock, unrooted Ron and haven't made any system changes, all you need to do is use ADB to boot to Fastboot mode:
Code:
ADB reboot bootloader
Once in Fastboot mode type:
Code:
Fastboot OEM lock
Then you will have a locked bootloader again. Just make sure you're running 100% stock first, because if not and you relock the bootloader it could brick it.
jeffsga88 said:
If you're running stock, unrooted Ron and haven't made any system changes, all you need to do is use ADB to boot to Fastboot mode:
Code:
ADB reboot bootloader
Once in Fastboot mode type:
Code:
Fastboot OEM lock
Then you will have a locked bootloader again. Just make sure you're running 100% stock first, because if not and you relock the bootloader it could brick it.
Click to expand...
Click to collapse
Thanks, man. 'Prime said the same thing. I had TWRP before 20a, so just to be sure, I'm going to reflash with LGUP, and than do the adb as he suggested, also.
Is there anyway to get an unlocked bootloader? I am still running stock nougat with bootloader v4. Can I flash G930U and unlock bootloader that way? I really just want to install custom ROMS. I have no need for regular root.
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