Same here plus the orientation isn't working (I've tested it with other roms and it's not the phone).
Change to ubers kernel... it has fixed the screen off problem while on call
Sent from my SAMSUNG-SGH-I727 using Tapatalk...
find the post here on the forum with the edited vold.fstab and open a cmd and write this down... it works only with gingerbread version... NOT FRYO (put the sdswap file on c so the bellow code will work)
I'm sorry buy i don't know. They are usualy in england i think. You can send them your device. Try to google for jtag repair.
Sent from my GT-I9100 using xda premium
you can buy or make a small device that makes your phone go to download mod...