Very poor resolution after GPSMAP 8412 update!

Hello, everyone,
I'm from Bulgaria. I have a GPSMAP 8412xsv with a LiveScope Plus System with GLS10 black box and LVS34, as well as a PS30 probe.
Today, through Active Captain, I made the last update of my 8412 to version v.35.10.
Everything went ok.
But after the reboot I found that my screen has horrible image quality. The fish images are blurry and very low quality. It's like they're out of focus. Until the previous version of the software everything was fine and I was very satisfied.
Now I don't know what to do. Is there any way I can get back the old version of the software? Or should I wait for a new update to fix this? I'm asking for help.