JY-UQ135N4G Firmware

[coban]

Hello folks,

I've also had a Joying JY-UQ135N4G in my VW Sharan for a few days and would like to update it.
But I'm not sure which file I really need.
There are some with "Old UI" & "New UI", and then there is one that apparently brings the system to Android 12, etc.
To be honest, I'm a little unsure, can you show me what the difference is.
I wrote to "europe@joyingauto.com" (already twice) but didn't get an answer, so I'm a bit disappointed.

With the latest firmware (2022-8-15) you can apparently no longer change the boot logo, but I want that,
so please give me the second to last firmware link.
Of course, it would be even better if I could load both firmwares and later decide to go with the last version.

Thank you for your support

Coban

Here are my technical specifications Pictures for the system:










PS: Is it really possible to bring this radio to Android 12?
In the network circulating a lot of things that call this a fake, do you have more detailed information about it?