Solved: Cannot lock new bootloader! "Please fully flash the signed version before lock the phone"

I'm trying to follow this: https://motorola-global-portal.custhelp.com/app/standalone/bootloader/recovery-images

But it fails in the first command "astboot flash gpt.bin partition. I get

target reported max download size of 268435456 bytes
Send "partition" (32 KB)...
GOOD [ s 0.005]
written 'partition '...
(bootloader) Preflash validation failed
FAILED (remote failure)
Finish. total time: 0.142 s

Looking around the Web, XDA and this forum, I found this: https://forums.lenovo.com/t5/MOTOROLA-Android-Developer/GUIDE-Osprey-BOOTLOADER-LOCK/td-p/3374644

But even once, when I write "fastboot oem begin lock" I get:

...
(bootloader) Please fully flash version signed before phone is locked!
GOOD [ s 0.022]
Finish. total time: 0.022 s

So I tried to put the ROM, but even once, I get the same errors.

I just want to lock it again. Can someone help me?

Thank you!

Oh! Now I got it!

So, just in case a person is confused, as if I was, here's how. First, find the right ROM. Then go into fastboot.

fastboot oem lock start

You will get the message that has the title "Please full flash version signed before locking the phone" (which should have been obvious I know, but I thought it was an error). However, after that this message that you Flash the ROM as you would. For me it was:

fastboot flash partition gpt.bin
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash system system.img_sparsechunk.0
fastboot flash system system.img_sparsechunk.1
fastboot flash system system.img_sparsechunk.2
fastboot flash system system.img_sparsechunk.3
fastboot flash system system.img_sparsechunk.4
fastboot flash system system.img_sparsechunk.5
fastboot flash system system.img_sparsechunk.6
fastboot flash system system.img_sparsechunk.7
fastboot flash system system.img_sparsechunk.8
fastboot flash system system.img_sparsechunk.99
fastboot flash modem NO - HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot erase userdata

To finish the block I did

fastboot oem lock

And that's all!

Tags: Motorola Phones

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