Trying to update the firmware in my Mooshimeter from Android 5.02 on HTC M7 . I had trouble getting my phone to connect to the meter while in bootloader mode so I un-installed mooshimeter software and re-installed. I was able to connect to mooshimeter while in boatloader mode and upload new firmware but after “programming” I got the error message “invalid Firmware”. I put in new batteries and ran the programmer again. It would run but I still couldn’t get past the invalid firmware message. I had to reboot my phone to get the message to go away and get access to the app. Works now.