Hi,
i owend a H6470 with FW 2800. All Questions in connection of Downgrade are answered for me. But now i have another question:
In Service-Menu i closed the OTN-Funktion, also the OTA. On my I-Net-Router i do the same, and then, Yout*be isnt runnig yet, also Amaz*nPrime. OK, i can set the IP-adresse for this Apps in "Whitelist", so they connectet to the I-Net and still working. But, after downgrade to another FW, i must do an update for Yout*be, also Amaz*nPrime an others that they work.
And this "Update" is an new Firmware, isn't it? Or is it possible, only update this Apps without a new Firm to work? Otherwise i lost my root, you know.
Please, an easy to understand answer. Thanks
Greetz
P.S.: Please excused my English, i hope u understand what i mean.
App functionality after FW-downgrade
Re: App functionality after FW-downgrade
BAD router, bad user. No idea. Here works as a charm 

I do NOT support "latest fw" at ALL. If you have one you should block updates on router and wait for it to STOP being "latest":)
If you want me to help you please paste FULL log(s) to "spoiler"/"code" bbcodes or provide link(s) to pasted file(s) on https://pastebin.com Otherwise "NO HELP"!!!
If you want root DISABLE internet access to your device!!!!
DO NOT EVER INSTALL FIRMWARE UPGRADE !!!!
If you want me to help you please paste FULL log(s) to "spoiler"/"code" bbcodes or provide link(s) to pasted file(s) on https://pastebin.com Otherwise "NO HELP"!!!
If you want root DISABLE internet access to your device!!!!
DO NOT EVER INSTALL FIRMWARE UPGRADE !!!!
Re: App functionality after FW-downgrade
ok, once more.
Amoz*nPrime works right now. Thats not the Problem.
A view weeks ago, i want to use Prime, and the App says to me, "i need an actually Version, please update". So, on my stupid, i alow my TV to do so, and FW goes to 2800. And Prime runs fine.
Now the Question again: If i downgrade and upgrade to, exemplary, 2750, Prime comes again and want a update for work. Can i update this App standalone to run fine without a Firmwareupdate? Otherwise i can't go the way of SamyGO, because my wife is using Prime to look "Love-Storys"...
Amoz*nPrime works right now. Thats not the Problem.
A view weeks ago, i want to use Prime, and the App says to me, "i need an actually Version, please update". So, on my stupid, i alow my TV to do so, and FW goes to 2800. And Prime runs fine.
Now the Question again: If i downgrade and upgrade to, exemplary, 2750, Prime comes again and want a update for work. Can i update this App standalone to run fine without a Firmwareupdate? Otherwise i can't go the way of SamyGO, because my wife is using Prime to look "Love-Storys"...