Hi all,
i have a 8310 contac service set for service.i have tried to repair it by twister,prodigy,griffin etc but i can't remove contac service,but i have found a strange things when i done full factory setting by software then its power up successfully but then if i put battery inside set & go for power on then it shows contac service.so pls help me for repair this pb.
i have tried by various version so pls help me by exact solution.
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