SONY KDL-65w850c need latest firmware 6.827

[AlexWhat]

In 2022 SONY did "Termination of TV Software Update" for this model.
I did find older firmware but it can't be installed over newer one (rolled back)
Yes, got boot loop during android load so if that will not work then EMMC has to be replaced, I think.

[nomoresonys]

Maybe try these guys, tell them you changed a board and need the firmware that they dropped from their site: https://ca.esupport.sony.com/support...language=en_US

[zomi]

https://community.sony.de/t5/android...57/m-p/3955838

[Diah]

android system.. always have copy saved on partition , if you have bootloop always hard reset will write the firmware back

[AlexWhat]

I did find this " https://www.reddit.com/r/Troubleshoo...screen_anyone/ "

[AlexWhat]

Maybe try these guys, tell them you changed a board and need the firmware that they dropped from their site: https://ca.esupport.sony.com/support...language=en_US

I did contact Sony support and they did supply me with the latest software and all instructions but since the tv had latest software I was not able to upgrade.

[Diah]

at my post 4 i said what it should need,
good Sony give you last firmware.. .. copy it after extract on root USB stick no more than 4Gb formatted in FAT 32 MBR mode ..while TV plugged out from the wall insert thr stich at the side Black USB Port.. hold joystic pushed and pull it down keep this action and plug the tv IN wall release yours Push only after the front LED change from white to green. after it change color count 3..2..1 and releasr you push... leafe it even you have blank screen... you ,may try it several time to work.. thought this is your cheapest way to bring the TV to work again.

i posted here before many ears and it did work with worst condition not as yours... search after.

[AlexWhat]

at my post 4 i said what it should need,
good Sony give you last firmware.. .. copy it after extract on root USB stick no more than 4Gb formatted in FAT 32 MBR mode ..while TV plugged out from the wall insert thr stich at the side Black USB Port.. hold joystic pushed and pull it down keep this action and plug the tv IN wall release yours Push only after the front LED change from white to green. after it change color count 3..2..1 and releasr you push... leafe it even you have blank screen... you ,may try it several time to work.. thought this is your cheapest way to bring the TV to work again.

i posted here before many ears and it did work with worst condition not as yours... search after.

That what it states in (Android software Help.pdf) "If TV was updated to last software release, you cannot update again" and at the end "If does not recover, TV will need a new main board."
After reflash it does not switch to a new flash, it just behaves as before.