Drop calls

[w1lls]

Ive got s21 ultra an calls keep dropping out aswel as no data, tried sim in other phone works perfect what could the problem be? Its had the latest update just for info

[-Robot-]

If works on other sims I would suggest speaking to your network provider

[BandOfBrothers]

Try a network reset on the phone found in your General Management section under reset @w1lls 

Especially if your sim works fine in other phone's. 

Can you try another networks sim card in your phone and then see what happens. 

There js also a diagnostic tool found in your Samsung Members App.

Occasionally a factory reset after a back up can help however a Samsung Service Centre can assess your phone. 

If I can be of any further help then please don't hesitate. Take care.  😎