How to Re-Lock Bootloader ASUS Zenfone 2

The trouble after unlock bootloader : Furthermore, such repaired Revised Product will not be covered under the warranty of the Original Product; the software of the repaired Revised Product will not be deemed the software of the Original Product and will not receive ASUS software updates. But we can re-lock the bootloader :D

DWYOR (Do it with your own risks)

Download Resources for Re-lock Bootloader :

1. ASUS Zenfone 2 RAW file (ZE551ML) (Download)(Pass: www.asus-zenfone.com)
2. ASUS Flash Tool 1.14 (Download)(Pass: www.asus-zenfone.com)
3. Download recovery.img, boot.img, droidboot.img (Download)

How to Re-Lock Bootloader:

1. Download files above
2. Install ASUS Flash Tool on your Computer/Laptop
3. Reboot your Zenfone 2 to bootloader (Power+volume up or Here)
4. Open Asus Flash Tool apps
5. Select Model Zenfone 2/ ZE551ML on Drop down menu
6. Select RAW File (Click on Box button)
7. Choose wipe data
8. Connect Zenfone 2 to Laptop/PC
9. Your device will be appear on device list
10. Click Start Button
11. Wait until Finish
12. Download ADB tool and install it (Download)
13. Reboot your Zenfone 2 to Bootloader again
14. Place recovery.img, boot.img and droidboot.img to a folder
15. Open the folder and press shift+right click > open command here
16. Connect your Zenfone 2 to PC/Laptop
17. Type on CMD (press enter after each line):
fastboot flash fastboot droidboot.img
fastboot flash recovery recovery.img
fastboot flash boot boot.img
18. Download Asus Zenfone 2 Ze551ml firmware (Download)
19. Enter recovery (Tutorial Here)
20. Select Apply update from adb
21. Open Ze551ml firmware folder and press shift+right click > open command here
22. Connect your Zenfone 2 to PC/Laptop
23. Type on CMD (press enter after each line):
adb sideload UL-Z00A-WW-2.20.40.97-user.zip
24. Done