Why am I unable to unlock Bootloader on i9250 using the Fastboot tool?

LeonHuang

New member
Oct 18, 2014
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Failed to unlock bootloader on i9250 using fastboot tool

my Galaxy Nexus repeatedly auto-reboot, I don't know what is going on, probably, a kernel service is broken. I tried to unlock bootloader in fastboot mode using fastboot tool.

below is the printed message:

F:\i9250\platform-tools>fastboot oem unlock

... OKAY [ 21.025s]

finished. total time: 21.025s

the phone indicated the bootloader was unlocked, and status was okay. but, the phone didn't ease the data and self reboot. I restarted phone or restarted bootloader, it was still locked. I tried so many times, still failed to really unlock bootloader.

the original system version was 4.0.4, a couple of months later, it was automatically updated to 4.2.1. I checked the module versions, as follows:

bootloader: PRIMELA03 (it was old version in 4.0.4)

baseband: I9250xxLH1 (the new version in 4.2.1)

Android version 4.2.1

how to correctly unlock the bootloader?

Thanks in advance!

Leon
 

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