LoPy4 stopped working, gets hot

[HenroRitchie]

Re: [LoPy stopped working](gets hot)

Hi All

This is in the continuance of the previous thread of Lopy4 units getting hot and spitting out garbage on the COM port.

Exactly the same as - https://forum.pycom.io/topic/2255/lopy-stopped-working-gets-hot-broken

Both my units failed in the field while on the same Pysense board. Is there any way to get them to work again or they gonners? What could be the cause - and how to prevent this in future?