📵 Redmi Note 11: Why is my phone showing No Service?

Since the SIM works perfectly in another phone, the issue appears to be specific to the Redmi Note 11. Start by resetting the network settings and restarting the device. Check for pending MIUI/system updates and make sure the correct network mode is selected. You can also manually select your network operator instead of using automatic selection. If the problem continues, remove and reinsert the SIM and check whether the SIM tray is damaged or loose. If none of these steps help, the antenna, SIM reader, or network-related hardware may need inspection by a qualified technician.

My Redmi Note 11 randomly shows No Service for several minutes at a time even in areas with normally strong network coverage. Restarting the phone brings the signal back temporarily before it disappears again later in the day. The SIM works fine in another phone I tested it in.