they said around rm300.

s-on or s-off?

Did you use revone

Reboot to boot loader and see the first line under UNLOCKED

It's best you post a screenshot here as it seem the boot loader has been relocked and quite possibly the unlock boot loader procedure was done using the htcdev method which means you may have a hard time with the monkeys at HTC SC to change the camera or parts

Looks like you are S-ON as stated from the picture posted its very likely that the root was done using the htcdev method and the warranty is void
Suggestion is go for tribunal and insist that nothing is wrong with the set apart from the sh*tty camera module and that the manufacturer was negligent in ensuring that proper testing was done for functional camera prior to selling to market - say also that this PHENOMENON is prevalent in practically 7 out of 10 HTC One worldwide and while other countries provide a simple fix or replace procedure only the monkeys in HTC Malaysia and their blockhead policy differ in their support

The camera module is separate and connected to a daughterboard. Why charge you for the mainboard???

For that you need a custom ROM like the ARHD 30 and edit in sense 5

Only for HTC Malaysia units by SiS/Brightstar. AP obviously not covered.

Xirality sold yours? what you upgrade to.

Let me guess...all also had camera issues? Wow you are one hardcore HTC One supporter.