I received this fon for unlock.. After unlocking, set no signal so I decide to flash but I forgot to check the downgrade box. Now cannot turn-on.. Only nokia after flashing faild aborting IMEI at the end..

I tried the following firmware but still no luck

N71 RM-67_Phone_Data_Package_APAC_1_0
RM-67_APAC_PR_dp_v03.00_SW4.0642.1.05
RM-67_EMEA_PR_dp_v03.00_SW4.0642.1.05
RM-67_Phone_Data_Package_APAC_2_0
RM-67_Phone_Data_Package_EMEA_1_0


What firmware should I use to fix this fon? The product code is 0526660.

Thanks