When listening to FM radio on the POCO C71 while the device is charging, you will experience interference, resulting in noticeable "sizzling" or static noise. This issue arises due to inherent design limitations of the device, and therefore it cannot be fully optimized or resolved through software or hardware adjustments.
For your reference, here are more details of the issue:
1. The electromagnetic interference generated during the charging process affects the FM signal reception, leading to a disruption in sound quality;
2. To avoid this problem and ensure a clearer and more stable FM listening experience, it is recommended not to charge the device while using the FM radio function. Disconnecting the charger during FM radio use will help prevent unwanted noise and provide better audio performance.