Question about AVM FRITZ!Box 7583

Attention - IMPORTANT 👆👆 for users of IPTV (SUNRISE, SWISSCOM etc... ) Please do NOT install firmware 7.50 (complete - for FB 7583 = 167.7.50) !!! 👆👆😠 I suspect(!!) that this also applies to FritzBoxes 7390/ 7490 / 7590. The TV boxes request parameters (section: 'jasonii' ) in the settings, which is NOT taken over by the new firmware !!!. When I replaced the Sunrise FB, I always imported the settings into the next higher firmware. reported - account locked -. After more than 3 hours on the phone with the Sunrise support (super people), I took the FritzBox and analysed the '.export' file of the settings - result: NOT ALL settings are adopted. So I DOWNGRADE the firmware back to version 7.31 - everything works again 🤷‍♂️😰😰 puhhhhh -. exactly how the downgrade works is explained well on the avm.support page. A downgrade back to version 7.29 is currently offered. no problem, I had saved the file with version 7.31 ... This result was reported to AVM support - the ticket is still 'in progress'. So far, unfortunately, not good - but mistakes can happen in software development, even those that slip through QA. (in this case, the provider versions were not on the radar) - human 🤷‍♂️👆 Greetings Rainer