Raspberry Pi 4 EEPROM update

Some USB devices will cause the Pi to hang with a "firmware transaction timeout" error

This update is MANDATORY for any system using a TRM240 modem

Step 1 - Change the update stream from default to latest

# Check the current details

# Update the stream
sed -i s/default/latest/ /etc/default/rpi-eeprom-update

# Check the details again to see that it's changed streams

Step 2 - Trigger the update and reboot

rpi-eeprom-update -a

Step 3 - Check the update was successful


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