Hello,

Im trying to downgrade one of our installation made of M900 antennas. Their actual firmware is 650B2 and i willing to downgrade them back to 530B2, but it's not working.

I've been trying with the master of a clusters, differents antenna that are outside of multi-cell, desactivated my firewall, changed my network, tried differents switch, but still nothing works (even when im trying to upgrade one that is in 530B2 to 650B2 it wont work).

3 weeks ago one of my collegues did downgrade one of our installation and it worked fine.

Is there any suggestions that could help ?

(im putting https://dect.snom.com in "update server address" ; 530 in "required version" ; 02 in "required branch")

PS: the reason we decided to downgrade is because with the 650B2 our client had somes problems, but with 530B2 firmware everything works fine.

Thank you !