GD87 sim error pls help???
 

Hi all,
i have a Panasonic GD87 set which has "sim error" pb.Before i had never seen like that pb.so if any body have seen before like that pls help me for repair such as pb.

proxy_gsm

1,downgrade to A22 version
2,unlock with crack2d
3,flash to A53

end

is not nacesery to do all this (is not simlock),just flash the phone