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Downgrade secure firmware V15 it's possible in Flexy - Printable Version

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Downgrade secure firmware V15 it's possible in Flexy - mickaa - 11-12-2025

Hello,
It's possible to downgrade a secure firmware V15 to V14? EDFS file

Should I use firmware 15.0s2 (secure recovery) with SD card method?


RE: Downgrade secure firmware V15 it's possible in Flexy - rik.schuijt - 22-12-2025

Same issue here!


RE: Downgrade secure firmware V15 it's possible in Flexy - Anton - 23-12-2025

Hi,

Sorry for the delay.
It is possible to downgrade from 15x to 14x. However, it's only possible through Ebuddy (recovery process)
There's a new encryption on the FW files for 15x, so it's not possible to downgrade through the FW file and SD card.

BR,
Anton


RE: Downgrade secure firmware V15 it's possible in Flexy - mickaa - 23-12-2025

(23-12-2025, 10:19 AM)Anton Wrote: Hi,

Sorry for the delay.
It is possible to downgrade from 15x to 14x. However, it's only possible through Ebuddy (recovery process)
There's a new encryption on the FW files for 15x, so it's not possible to downgrade through the FW file and SD card.

BR,
Anton
 
Thank you so much, that's great news!
I was able to downgrade to v14 without any problems.