BLE DFU fails after 4 seconds

[Andre N]

Hello,

I am using a custom app that uses Nordic's DFU library to update my device.

It works most of the time but for some users, the process fails about 4 seconds after it starts.

I have no idea what can be causing the bug because i cannot replicate it, but i think it is weird that for some people the BLE connection drops roughly at the same time.

Do you have an idea of what could be the cause?

Thank You

[Amanda Hsieh]

Hi, 

It's hard to say what could be the cause, but I would suggest you compare the sniffer log with the success and failure cases to see what differences in behavior are.  That might help you debug. 

Regards,
Amanda H.