Bootloader Unlock failed

[Florian Bichl]

Hallo everybody,

I am trying to unlock my bootloader. I was entering following command and it didn´t fail:

fastboot oem nubia_unlock NUBIA_NX609J

I got this:

(bootloader) START update nubia fastboot unlock flag!!!
(bootloader) set state to 1 ok!!!
OKAY [  0.060s]
finished. total time: 0.060s

But when I am in bootloader mode it shows following message:

device info:
Secure boot - yes
System is root - 1
Boot is root - 1
Device is root -1
Device state - locked

Because the device is locked I can´t flash a recovery. Can someone help me? How can I fix this?

 

[emeraldexaltation]

Try using a different version of adb, you can download it from the Android SDK site.

Try using a different set of adb drivers. Try the ones supplied by ZTE when you connect the device to your computer. (You would uninstall your current ones and reinstall the ZTE drivers).

Could you also provide me with the firmware version?

Cheers.

 

[Florian Bichl]

I have already tried different adb versions. I am on V1.07 of official ROM (Android 8.1.0)
I am using the official ZTE usb drivers. But it won't work. Also I can't update the firmware over the update Center in the settings. It always get stuck while updating and reboots. Maybe the firmware has some troubles

 

[Florian Bichl]

I fixed my issues. I downloaded Chinese firmware and flashed it. after that I flashed international firmware. now i can unlock my bootloader

 

[emeraldexaltation]

My apologies for the late reply. Awesome to hear that you have managed to fix the issue.

 

[methuselah]

I fixed my issues. I downloaded Chinese firmware and flashed it. after that I flashed international firmware. now i can unlock my bootloader

Great to know man.