If you followed the advice above, but still cannot connect the App to your phone, then you can try resetting the connection by following the steps below:
Unpair shaver: Long-press the ON/OFF button on your shaver for 8 seconds to disconnect if from the app. The Bluetooth symbol and the notification symbol should blink together for four seconds, indicating that the devices have been successfully unpaired.
Unpair phone: Go to 'Settings' on your phone and select Bluetooth. Then select the Shaver S7921 and press 'forget' or 'unpair'.
Note: These instructions may differ by smartphone. Please check your phone manual for more information.
If you have tried the advice above, but are still unable to solve this problem, then please contact us for further support.