Invalid sim

[StrangeT9X]

Hello I have problem with my Z3. Every single sim card it's blocked in my phone.

Invalid card - only emergency call.

Any ideas how to fix it? I'm used repair option on PC but still nothing.

[MarlonUk1]

was your phone locked to a specific carrier? or was it bought unlocked?

remember all phone bought from a carrier will only support that networks simcards.

[StrangeT9X]

I bought unbranding phone. I have this phone maybe 6 months. Everything was okay but not now. Im still using this same card. Sim card working in others phone.

[MarlonUk1]

ok , what was the last thing you did when you experience the problem?

if you did perform a software upgrade before. try to perform a software repair using Xperia Companion ( just one more try)

try to boot in safe mode. ( this will disable 3rd party apps making sure it is not an app that is causing this)

change your network types ( try gsm only or wcdma only first)

configure your APN. (connect to wifi and download APN settings)