Sometimes system dead after a Gatts link connections for production

[Summer Lee]

It seems the whole system turns down occasionally after start a GATTS link connection with mobile App for a 51822 module when beacon. But the voltages of the module is OK.

I use the softdevice with S110 8.0.0 version for production. I don't know why it happens.

Can anyone give me any suggestion?

[Kenneth]

Have you checked the app_error_handler() for any asserts? 

By default the project will execute a system reset when there is an assert, if you define DEBUG in your project, then you should be able to identify file, line number, and error code causing the assert in the app_error_handler().

Best regards,
KEnneth

[Summer Lee]

Thanks. I use a WDT timer to avoid the stuck. But I still want to know that whether it has any possible issues about GATTS process?