I got the Bootloader Unlock code and I unlocked my Mate 7 using the command "Fastboot oem unlock <code>" and it showed "done". I repeated the command and it showed "remote: already user unlocked", which convinces me that the bootloader is finally unlocked.
However, when I tried to flash TWRP recovery using "fastboot flash recovery twrp_2.8.7.0_mate7_5.1.img", I still get the same error "FAILED (remote: image verification error)". I have checked the XDA pages and the TWRP version seems to be right, as I used the link (
https://basketbuild.com/devs/asyan4ik/hwmt7_l09) given on this post only.
Sequence as follows:
Fastboot Flash Recovery twrp_2.8.7.0_mate7_5.1.img
target reported max download size of 471859200 bytes
sending 'recovery' (12644 KB)...
OKAY [ 1.384s]
writing 'recovery'...
FAILED (remote: image verification error)
finished. total time: 1.404s
Is there a separate TWRP version for MT7-TL10 version? If yes, can someone provide the link, please?
This is very frustrating because it's a great phone and not being able to root is very limiting!