Flashing corrupted modem firmware. Fix: Re-flash the complete stock firmware via dload method. If persistent, you need to restore the NVram partition using professional tools like HCU Client or Miracle Box (advanced users only).
If you just need to clear software glitches without a full flash, try a Hard Reset Turn off the phone. Power + Volume Up until the logo appears. Clear Data > Factory Reset and type "yes" to confirm. or region for your HONOR X7b firmware? How to Choose the Right Firmware for Your Honor X7b Firmware HONOR X7b
The firmware must manage the (4G version) or Dimensity 6020 (5G version) chipsets, which are optimized for efficiency rather than raw power. Flashing corrupted modem firmware