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U Just have to Open the The Board under the battery Unscrewing 8 Screws.
Remove the Blank Plastic sticker Film and then there will be 6 Pinouts u have to Solder the RUIM Socket there and Assemble the Phone
then u have to Change the ROM Variable # 855 (Interger Value)
Where
0 = RUIM Mode (Removable User Identity Module based Connection)
1 = NVM Mode (Non Volatile Memory based Connection)
2 = RUIM if Available (means) First Priority to RUIM then NVM
I am Using Mode 2 so when i insert any 3 Party RUIM of
Tata Indiacome or Reliance Telecom the Phone Swithced to that Network and when i remove RUIM and Reboot it uses NVM and gets into Previou State.
Remeber I am using Verizon and i dont have to Change the Radio ROM i am using Verizon Phone made RUIM Based into Reliance Infocomm in India using RUIM Card.
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