MGL Avionics quality EFIS glass cockpit systems for Experimental light sport aircraft
MGL Avionics EFIS
iEFIS Gen 3
MGL Avionics - Stratomaster Flight instruments
aircraft instruments EFIS
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Download the latest iEFIS firmware: EXP3.bin


  1. Save the EXP3.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.



This website is operated by Rainbow Aircraft, Inc (dba MGL Avionics) - North American distributor of MGL Avionics products
Tel: 877-835-9464  |  International: +1-310-534-2509 | 3401 Airport Drive Ste E, Torrance, CA 90505

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