Affected Products or Services
Lumia 630, RM-976, RM-977, Lumia 630 Dual SIM, RM-978, RM-979
Steps for fixing the problem that Lumia 630 or Lumia 630 Dual SIM has no incoming or outgoing audio during the phone call.
- Switch off the phone.
- Remove the battery and SIM card.
- Insert the SIM card and install the battery.
- Switch power on.
- If audio is still missing you may need to reset the device to factory settings (Settings > About > Reset your phone).
- After reseting the phone, please ensure that the date and time are correct (Settings > date+time).
This is a SW issue. You do not need replace any component due to this issue.
Nokia is targeting to solve this in the next SW release.