how to get your cell lte/5g signal working again on your Samsung galaxy fold 3 4 s20 s21 s22 s23 etc

Go to dialer and dial *#2263#

1. Option 1 band selection sim
2. Select CLEAR ALL BANDS
3. select LTE BAND PREFERENCE
4. Select next page to get to band71 and select it
5. Go main
6. Nr5g band preference
7. Select both b41 and b71 options
8. Select BLOCK SET AP option
9. Apply band configuration.
10. Click 3 menu dots at top and end.

Pop out your sim reinsert it and good to go.


FYI. This will need to be done again if device is factory reset.