Pre Req
If u Want ICS Upgrade than Flash Stock RUU from Bootloader, Before Unlocking Bootloader
Links for ICS RUU:
AP Mirror #2
AP Mirror #3
After downloading the file, rename it to "PH98IMG.zip" (no quotes)
Place the renamed file onto the root of the SD Card
Power down your device
Reboot into the bootloader by holding VOL DOWN + Power
The flashing process should begin automatically
HTC Sync: http://dl4.htc.com/m...up_3.0.5606.exe
HTC Super Tool: http://forum.xda-dev...d.php?t=1343114
Enable USB Debug on Rezound
Use Charge Only mode when connected to PC
Exit HTC Sync on PC
GSM Patch: http://dl.dropbox.co...STOCKGSMFIX.zip
Once u have got the ICS, Use Rezound All in one Tool to Unlock Bootoader,
Than Load Aaron Recovery from the Same tool
Reboot into Recovey
Wipe All Data Factory Reset
Install GSM patch from Recovery
Reboot Phone
Insert Ur GSM SIM Card & Start Using Call, SMS & DATA
U may need to Dial *#*#4636#*#* to Switch been 3G & Edge
USSD Code When u Dial code its not working, But Balance is Shown after u make Calls & SMS