Legrand 067773/067774 didn't respond to OTA request

[glpotatoe]

Hi !

I have several Legrand devices, and the OTA update for the ones with batteries doesn't work.
I have this error : z2m: Update of 'Commande double sans fil séjour' failed (Device didn't respond to OTA request)
I tried to keep the device alive by clicking on a button every second, I had the same error.

Here is a picture of the concerned devices :

I'm on z2m 1.40.1, and I have a SLZB-06M coordinator with ember adapter.

Update on wired legrand devices works well.