Keep your EFOY fuel cell up to date and simply download the latest firmware via an Internet connection.
NEW: Recommended firmware version (as of 10/2021): 24.10
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Keep your fuel cell up to date and order the free firmware updater for your home.
Recommended firmware version (status 08/2020):
|EFOY series (silver)||9.27, 11.13|
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¹ EFOY fuel cells with serial number xxxxxx-xxxx- 52801 or higher are shipped with firmware 15.17. For older EFOY fuel cells, firmware 15.16 is the latest version.