???

[Lisiok77]

Hi ,my sekend sim not working in my s10.Show invalid card,otherwise stiil can't  catch the net

[Pugs1957]

It may be the card is faulty. Does it work in the other sim card socket or try the sim card in another phone.

If the sim card does work you have a faulty sim card reader.

[Lisiok77]

Only doesn't work in the first.on other phones is ok

[Lisiok77]

On two it works normally

[Pugs1957]

Hmmm strange. Try resetting your mobile network connections and while you're at it, clear system cache. If the problem is still there try running the phone in safe mode in case an app is the culprit.