BLE DISCONNECTION PROBLEM

[Nasib]

Hi, I am using the UART over BLE example + a timer interrupt + a pwm signal. And I am facing the following problem (error launched by my phone app: )



This happens sometimes and with different apps, so somehow sometimes there is an issue during the connection. 

Can you identify this problem? 

Thanks a lot . 

[Simonr]

Hi Nasib

This seems to be the infamous 133 error present in some Android phones. This rarely happens anymore, but still occurs in some Android phones. If you're using our Android BLE Library I suggest adding some retries when trying to connect to a device or if you're using another library for your Android app, add a delay when connecting to a device.

Best regards,

Simon

[Nasib]

Thanks Simonr, i am using two different android phones with Android 10 version. I see this error in my own app but sometimes also in nordic tools app. 

What do you mean with some delay when connecting? after the connection? how thic could help with this problem? 

Thank you so much for your help.