can u repair xperia arc? I have this 0% battery problem

[Q] What kind of failure is this 0% battery issue?
[A] This is an unrecoverable hardware failure on the fuel gauge controller of the Arc/Neo. On our research, we concluded that no software can correct this.


please quote price for parts and repair.

repair for
fuel gauge chip?
or
replace motherboard.

Ref:
http://forum.xda-developers.com/showthread.php?t=1312398

Thanks for your reply.
I can on the phone and it works if i connect it to the charger.
If i do not connect to the charger, phone will boot as normal. once the phone starts, it will show battery as 0% and will shut down.
So after many people tried to fix the problem, they say it is hardware problem.

the choise of repair is.
1. repair/replace bq27520 system-side Li-Ion battery fuel gauge microcontroller chip
2. change motherboard.

do you know how much it will cost to replace motherboard for xperia arc?



ps. Regarding to brick, the phone is not brick yet as i know how to unbrick the phone.

also tried already.
installed stock firmware. upgrade firmware, upgrade to latest ICS, Flash to custom rom, all also never fix the problem.

Do u charge for checking the problem?
Also after run jtag still problem occur, do i need to pay?