Sim problem (Samsung a13)

[john3838]

Description:

I recently factory reseted my phone because I forgot my password but now neither of my sims work. They both say "unknown number". Anyone know how to fix this?

Things I have tried: Restarting my phone, using another phone and turning my sim off, resting network settings and turning sim on and off.

Device Name: Samsung a13

Device Model Number: SM-A137F/DSN

Best regards, 

[arianwen27]

What exactly says unknown number? As in, what's telling you that?

Can you make and receive calls or is that not working?

[john3838]

When I go to sim manager, it says unknown number under my sim. I can't receive sms, make or receive calls

[arianwen27]

Have you tried removing your sims, making sure the contacts are clean with a cloth and putting them back in? They might just not be reading correctly

[john3838]

Yes

[arianwen27]

You could try resetting mobile network settings. In general management within settings

[john3838]

I've tried that too

[Tourbillon De La Vie]

Where did you get the phone from originally

[john3838]

Samsung store

[Piper123]

Can you make and receive calls using those sims and do they show the number ok on the recipients device?

If yes, wouldn't worry about it.