Baseband Unknown Fix Qualcomm [ PLUS × ANTHOLOGY ]

When your Android OS starts, it queries the baseband. If the OS receives no response (due to corrupted firmware, wrong partition mapping, or a failed update), it labels the state as

Baseband refers to the firmware that controls the cellular connectivity on a mobile device. It's responsible for establishing and maintaining communication between the device and the cellular network. The baseband firmware is usually provided by the device manufacturer or the cellular network provider and is specific to the device's modem. baseband unknown fix qualcomm

If software fails, inspect hardware: