recently i have unlocked bootloader and root my phone, but didnt flash to any custom rom.

running on global 8.0.2.0

if i update OTA, will it lock my bootloader and i need to redo the process again?

if i choose for edl (the only option) to update to latest 8.0.5.0, will it clear all my phone data and app??

yes it came with global.

if i use fastboot to flash, wouldn't it relock the bootloader again since it will replace with original .mbn file ?

thanks guys, finally managed to flash successfully.
i used the modified twrp and flash using latest recovery file .. i believe with this twrp, future flash no need to delete the mbn file ...

ref
http://en.miui.com/thread-283146-1-1.html

anyone face issue with video call quality ?

im frequent line video call user. however, i noticed the video call quality within app is very poor compare to if i use the camera function.

compared with my another phone. both the camera function and app video call quality should be the same