I’m afraid I didn’t quite understand your hardware setup. Could you clarify whether you connect the Navio2 UART port to the Reach M+ S1 port or Reach M+ USB port?
If you could send the photos it would be very helpful.
The full system report can be downloaded from the Reach. It contains logs about the condition of all parts of the system. For example, you can share it with me so that I can check out the temperature of the unit.
The UART port is always powered. However, if Navio2 isn’t provided with sufficient power itself, it won’t be able to provide enough power for the UART port.
At this point am thinking this is a hardware issue with power , have tried separately , only usb power or only S1 power both heat up reach M+ to like 170F
This usually indicates that power circuitry of the unit has been damages. There may be several reasons for that such as improper powering or overheating of the module caused by poor ventilation.
I saw your email, let’t continue the conversation there to check how we can help.