Baseband Unknown Fix Qualcomm -

When fastboot fails, use Emergency Download Mode (9008).

If your bootloader is unlocked and you have a custom recovery: Boot into TWRP. Select Restore. baseband unknown fix qualcomm

The story of a "Baseband Unknown" error on a Qualcomm-powered device is often a tale of a software experiment gone wrong, resulting in a phone that can no longer make calls, send texts, or recognize SIM cards. The Disappearing Signal When fastboot fails, use Emergency Download Mode (9008)

The persist partition stores Bluetooth/Wi-Fi/IMEI calibration. When fastboot fails

(This only works if you have a known good backup.)