Before to perform the "Unlock" or "Read Codes" operation You must check IMEI Certi status and MIPI status.
Type: *#0011# and check attentively
*#06# IMEI CHECK
*#0*# TOUCH CHECK
MIPI device fail - means, that device has hardware problem and after unlocking/entering codes network may be disabled (inactive)!
Cert fail - means, that IMEI is damaged or written incorrect IMEI Cert, so also after unlocking/entering codes network may be disabled (inactive)!
Type: *#0011# and check attentively
*#06# IMEI CHECK
*#0*# TOUCH CHECK
MIPI device fail - means, that device has hardware problem and after unlocking/entering codes network may be disabled (inactive)!
Cert fail - means, that IMEI is damaged or written incorrect IMEI Cert, so also after unlocking/entering codes network may be disabled (inactive)!
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