Connecting a matek f405 CTR to FS-iA6B receiver

Hi Krewett
Thanks for replying.
I tried again with a Turnigy X6B and I get similar results.
I tried a ‘status’ in the CLI and I get:

status

System Uptime: 20 seconds
Current Time: 2018-09-29T14:07:30.368+00:00
Voltage: 0 * 0.1V (0S battery - NOT PRESENT)
CPU Clock=168MHz, Vref=3.30V, Core temp=30degC, GYRO=MPU6000, ACC=MPU6000, BARO=BMP280
SD card: Startup failed
Stack size: 2048, Stack address: 0x1000fff0
I2C Errors: 2, config size: 2562, max available config: 16384
CPU:7%, cycle time: 129, GYRO rate: 7751, RX rate: 33, System rate: 9
Arming disable flags: RXLOSS CLI MSP

I tried again with the FS-i6B I get the following:

status

System Uptime: 73 seconds
Current Time: 2018-09-29T13:59:48.219+00:00
Voltage: 0 * 0.1V (0S battery - NOT PRESENT)
CPU Clock=168MHz, Vref=3.30V, Core temp=30degC, GYRO=MPU6000, ACC=MPU6000, BARO=BMP280
SD card: Startup failed
Stack size: 2048, Stack address: 0x1000fff0
I2C Errors: 1, config size: 2562, max available config: 16384
CPU:7%, cycle time: 126, GYRO rate: 7936, RX rate: 33, System rate: 9
Arming disable flags: RXLOSS CLI MSP
I note that it says there are I2C Errors, but I don’t know what thatmeans

Here are a couple of pictures of the board.