Network Type 276 Unknown | Or Unsupported

Sometimes, your carrier pushes an update that changes how network bands are identified.

Ensure the setting is set to "Unspecified" (which allows the phone to choose the best available). Step 4: Toggle the "Preferred Network Type" Force the phone to re-identify the tower: Open the Phone dialer and type *#*#4636#*#* . Tap Phone Information .

Under "Set Preferred Network Type," switch it to something else (e.g., LTE only) for 30 seconds, then switch it back to the default (usually ). Final Thoughts network type 276 unknown or unsupported

In the Android ecosystem, every radio technology—from 2G (GSM) to 5G (NR)—is assigned a specific integer constant. These constants tell the Operating System (OS) how to handle data packets, signal strength reporting, and power management.

If none of the above works, the issue may lie with your SIM card hardware. In that case, visiting your carrier’s store for a SIM swap is the final step. Sometimes, your carrier pushes an update that changes

Are you running a custom Android ROM (like LineageOS, crDroid, or a Pixel Experience port)?

Virtualization software (VMware, VirtualBox) or packet capture tools (Wireshark/WinPcap) can sometimes trigger this if the virtual bridge is misconfigured. 3. Troubleshooting Steps Step 1: Identify the Hardware Tap Phone Information

If the error is software-based, clearing your network configuration can help: Open as Administrator. Type netsh winsock reset and press Enter. Type netsh int ip reset and press Enter. Restart your computer. Step 4: Check for Protocol Filters