IodeOS installation on FP3 failed

Dear community,

I tried to install IodéOS in my FP3 (I did successfully with FP4 bevor) using the installer.
First time installation failed, device was booting in FairphoneOS again.
So I tried a second time. Result: bootloop in Fastboot mode.

I’m not able to install any ROM on my FP3 (neither IodéOS nor FairphoneOS), because “Critical partitions are not unlocked” allthough bootloader is open.

Has anybody an idea for solving my problem? I didn´t find…

Kind regards
Felix

AnotherElk could fix the problem: i used an old version of fastboot!
After updating everything went smooth :slightly_smiling_face: