No signal bras, only Carrier name after SAM while still working

[T§U]

Guys, can you help me, I have used SAM, while it was working, did all steps. By the end Carrier name is shown, but signal bars are empty and I'm not able to make or receive calls. Any hope for me? Thanks.

[J03Y4G]

Guys, can you help me, I have used SAM, while it was working, did all steps. By the end Carrier name is shown, but signal bars are empty and I'm not able to make or receive calls. Any hope for me? Thanks.

Have you restored or anything since the unlock?

[TitaniumL]

Guys, can you help me, I have used SAM, while it was working, did all steps. By the end Carrier name is shown, but signal bars are empty and I'm not able to make or receive calls. Any hope for me? Thanks.

Have you tried fiddling with data calls/voice etc under settings>network? I switched them off once and couldn't send/receive calls. On again and it worked.