Lenovo vibe p1 a42 imei repair guide
 

hi..
first of all you can root it with 2 methods
1st one is to unlock bootloader with this command
fastboot oem unlock


2nd flash twrp+super su


but i suggest u to flash prerooted firmware
https://cloud.mail.ru/public/5hQ2/qB...%20busybox.rar


then active diag with these commands


adb shell
su
setprop sys.usb.config diag,adb



and after all last step is to write your default imei with any qlm tool



jaber gsm

tabriz
iran

hi this file brick my phone