Please tell us some basic information before asking for help:
Firmware Version: android 11
Rooted or not: No
Frequency of Occurrence: Constantly in a loop
APP Name & APP Version (If your issue relates to the app):
After Android 11 upgrade my the network constantly disconnects and reconnects in a loop when 4g is selected. This doesn't happen when I remove 4g and only select 2g,3g
Tried factory reset and, still no luck. Have attached recorded behaviour. Pls see the mobile network on top right corner.