Hi guys,
finally i got my B03 A2017G bootloader unlocked. Here is how I did it:
1. enable developer menu -> settings -> about phone tap 7 times on the build number
2. go to developer options -> enable oem unlock
3. backup your recovery and boot with axon7backup (axon7backup -d -p X) - get axon7backup from here:
http://devhost.xda-developers.com/Ienb
4. flash twrp-3.0.2-2 with axon7root (rename the file as recovery.img and put it in the same directory as the axon7root.exe and execute axon7root -p X -r) - get axon7root from here:
http://devhost.xda-developers.com/aPiC get twrp-3.0.2-2 from here:
http://devhost.xda-developers.com/dgWW
5. boot into twrp, hold power and volume up until you are in twrp
6. execute: - get the aboot.img from here:
https://mega.nz/#F!rcFCQZ7C!vn457hU1zDwc0uVpvm5otw
Code:
#copy necessary files to internal sd card
adb push aboot.img /sdcard/
adb push fastboot_unlock.img /sdcard/
#make a backup to your internal sd of the partitions we are going to modify
adb shell dd if=/dev/block/bootdevice/by-name/fbop of=/sdcard/fbop_lock.img
adb shell dd if=/dev/block/bootdevice/by-name/aboot of=/sdcard/aboot_lock.img
#copy them to your pc
adb pull /sdcard/fbop_lock.img
adb pull /sdcard/aboot_lock.img
#flash the proper fastboot and aboot file
adb shell dd if=/sdcard/fastboot_unlock.img of=/dev/block/bootdevice/by-name/fbop
adb shell dd if=/sdcard/aboot.img of=/dev/block/bootdevice/by-name/aboot
#boot to fastboot
adb reboot bootloader
7.
8. follow instructions on your phone
9. boot into twrp -> vol up + power button
10. wipe data
11. enjoy the unlocked device
Hope this helps a few guys