RAK7204: BME I2C Write/Read errors

Hi,

7204 was working ok.
I updated firmware to latest status:RAK7204 Version:3.0.0.12.H.T

Problem: every time I use at+join command I get “BME I2C Write/Read errors”.
See log below.

Extra info: also included the log at bootup, which shows the sensor values correct.
After updating the firmware, I could not update the firmware again…I don’t get the sensor in boot mode again and also when using at+run it respond with error.

Many thanks for your help…

BME I2C Write/Read errors<<<<<<<<<
at+join
OTAA:
DevEui:**********************************
AppEui:*********************************
AppKey:*************************************
OTAA Join Start…
[LoRa]:Join Success
OK
Battery Voltage = 3.601 V
BME I2C WRITE ERROR
BME I2C READ ERROR
BME I2C READ ERROR
BME I2C READ ERROR
BME I2C READ ERROR
BME680 set sensor settings ERROR
BME680 Error.

[LoRa]: send out
[LoRa]: RUI_MCPS_UNCONFIRMED send success
OK
Go to Sleep

Bootup log<<<<<<<<<<<
Selected LoRaWAN 1.0.2 Region: EU868
UART1 work mode: RUI_UART_NORAMAL
BME680 init success.
autosend_interval: 600s
Initialization OK,Current work_mode:LoRaWAN, join_mode:OTAA, Class: A

OTAA Join Start…
[LoRa]:Join Success
OK
Battery Voltage = 3.598 V
BME680 sensor data:
Humidity:29.919 %RH
Temperature:22.46 degree
Pressure:1037.66 hPa
Gas_resistance: 5863 ohms

[LoRa]: send out
[LoRa]: RUI_MCPS_UNCONFIRMED send success
OK
Go to Sleep
OK

These problems arise because the latest firmware is not consistent with the previous BootLoader version of the firmware used. You need to re-burn the latest BootLoader(V3_0_2) and then re-burn the latest firmware to fix it.
Please refer to the online documentation for operating procedures:
https://doc.rakwireless.com/rak7204-lora-environmental-sensor/burning-the-bootloader

Hi I uploaded the new bootloader and installed the latest version. The problem remains (at+join will result in I2C Write/read errors) but somehow it sends the data every intervalperiod once (in my case every 15 minutes)…

Would you have the same problem using it before?Is it normal to send data after your first at+join will result in I2C Write/read errors?

By the way,RAK7204 USES that frequency band, is it convenient for you to take photos for me

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