| Low volume | – Replace with a new battery and discard the old one- Replace the earmold to prevent earwax blockage- Reattach the microphone cover to prevent earwax obstruction- Use a dehumidifier or send to the factory for maintenance- Test your hearing and adjust the volume |
| Feedback / Whistling | – Replace the microphone cover to avoid obstruction- Turn off feedback and check its effect on overall sound- Adjust the earmold to fit the ear canal properly- Replace the earmold if it is too loose- Test again / use a small vent or full-ear mold |
| High power consumption | – Use a dehumidifier or send to the factory for maintenance- If the user has severe hearing loss and uses a Bluetooth hearing aid connected to multiple apps, consult a specialist for free: 02-115-0568- Use only genuine batteries |
| Noise | – Replace the microphone cover to prevent obstruction- Adjust software settings to reduce background noise |
| No function / Not working | – Replace with a new battery- Replace the earmold to avoid moisture or earwax blockage |
| Computer cannot connect | – Check compatibility between the hearing aid and app/software- Make sure rechargeable hearing aids are turned on- Consult for a hearing aid check: 02-115-0568 |