Use LG KE500 cable
Then press connect button intro SGOLD3 tool.
Then select firmware
then press write.
See my few days ago worked log;
Welcome to Z3X LG Multi Platform TOOL
Current OS : Windows Seven SP1 BUILD:6/7601
Welcome to Sgold3 Module!!
Disconnected.
TIP: Please reconnect phone battery / power source.
Disconnected.
TIP: Please reconnect phone battery / power source.
Count supported models - 140
Loading module , please wait...
PMB8810 Module 1.0b started. SW: Ver 3.7.1.4
Connecting to LG GB220 in UART Mode (COM4 ,921600)
Please reconnect battery, press and hold power button...
Phone found! (MCUMB8810) prebooting...
Release power button. Booting...
Reading info...
Flash ID: 0x8981
BOOT Stage Finished , sending authority...
Reading ...
Backup Saved AS:C:\Program Files\Z3X\LG\LGI_SG3\BACKUP\LG GB220_autobackup_03022013_180330.eep
Analising EEPROM...
Phone IMEI:3557xxxxxxxxxxxxxx
Unlock codes:
NCK[0]: 0000000000000000
NCK[1]: 0000000000000000
NCK[2]: 0013169183265490
NCK[3]: 0013169183265490
NCK[4]: 0013169183265490
NCK[5]: 0013169183265490
NCK[6]: 0013169183265490
NCK[7]: 0013169183265490
TIP: For additional codes , select Read Codes option and click Unlock button
Finished in 18 seconds
Found firmware version marker...
Found firmware version marker...
Opening "GB220AT-00-V10a-202-01-JUL-14-2009+2_Bin.bin"...
Erasing Main Firmware...
Erasing done!
Writing Main Firmware...
Writing done!
Finished in 27 minutes 47 seconds.
Hope helps
flash it another file and check with hardware
i have changed 2 files but same problem, pls help me urgent.
change rf ic mean pa
bro i wanna discuss before changing pa, this problem may come form EEPROM?