| Won't turn on / no power | Power supply, battery protection or charging circuit fault. We test the battery and the board before quoting. |
| Not charging | Worn or damaged USB port, charging IC or battery. Ports and charging circuits are replaced at board level. |
| Bluetooth or Wi-Fi drops, won't pair | Firmware state, antenna or wireless module fault. We reset, update and test before any hardware work. |
| No sound on one side / crackling | Driver, flex cable or amplifier output fault. Drivers and cables are checked one by one. |
| Noise cancelling not working | Microphone or ANC circuit fault, often after moisture or a drop. |
| Soundbar: no TV sound over HDMI ARC / eARC | HDMI board or port damage, CEC settings or power-surge damage. We test with our own TVs and sources. |
| Liquid damage | Switch off and don't charge. Bring it in quickly. We clean the board and assess corrosion before quoting. |