Download the latest iEFIS firmware: EXP2.bin

Instructions:

1. Save the EXP2.bin file to your PC
2. Copy to your SD Card (to root folder - not inside any subdirectory)
3. Insert SD card in iEFIS with power OFF
4. Switch iEFIS power ON
5. Wait while software loads. iEFIS will boot up as normal after software is loaded. It may take a minute.