Hi, I have several sensors with parity control. My easyesp discovered them, but the value is not correct. Is any chance to use this sensor in my system?

Hi,
I also have this error when I try update firmware through www:

URI: /update
Method: GET
Arguments: 0

Is any possibility to do this in this way?
Currently, I have mega-20191208 and I try update my sonoff 4CH