I upgrade bootloader and firmware to my tracker. Now only have GPS value, accelerometer and battery voltage, but no other sensors. With Rak Serial Port Tool I see, BME I2C WRITE ERROR, and BME I2C READ ERROR for four times, at last BME680 set sensor settings ERROR.
Where are you using RAK7205? indoor or outdoor?
RAK7205 will send GPS payload only when it get a valid GPS position. So if you are using RAK7205 indoor, there is no GPS signal and no GPS payload will be sent.
It is outdoor, in the same place where always is in when I am testing the device; The same place where it was working before, now say No GPS Signal found !!