If you mean the charging port , basically you can but you need to remove the old one from the motherboard and to solder the new one on it. You need skill for that. Anyway you can order one from eBay or some other site.
I think not no matter that both are 3500 mah of capacity. The S8+ the battey is taller and the S9+ the battey is wider. Just order original one from eBay for example or some local store in your country.
I had similiar problem like yours. Tryed everything but nothing worked. Only the USB option worked for me, but with using a usb stick 2.0 not 3.0 . I losted many hours trying with the usb stick 3.0, but nothing. So download the OS from internet and boot it on the usb stick 2.0 (16gb stick or more) and try again to boot the stick. I used balenaEtcher to flash the OS on the usb stick.
With that size of the screen 85” will be pretty impossible to find out. If you get lucky and find on some site it will be very expensive. It’s better to get a new one TV that rather buy a LCD display for that model. Too I believe that you will not find out :/ I checked anyway on some sites which I know and nothing.
@jdw1 I replyed back in the comment section on youtube :) Yes i cleaned the old thermal paste then baked for 10 mins at 200 C not more then applied a new one thermal paste ARCTIC
@Jon Yes i checked every connector several times and still nothing. I believe that my card is dead. It will be great if you can send to me your 4850 video card ^^
I tryed on my HD 4850 baked it for 10 mins 200 C and now the card is complete dead. The mac doesn’t want to turn on after this procedure. It starts without the video card. So i guess i will need to buy a replacement one.
@jdw1 I replyed back in the comment section on youtube :) Yes i cleaned the old thermal paste then baked for 10 mins at 200 C not more then applied a new one thermal paste ARCTIC
@jabbott0 Please email me - dominatorpc@tutanota.com for the card . Thank you in advance mate.
@Jon Yes i checked every connector several times and still nothing. I believe that my card is dead. It will be great if you can send to me your 4850 video card ^^
I tryed on my HD 4850 baked it for 10 mins 200 C and now the card is complete dead. The mac doesn’t want to turn on after this procedure. It starts without the video card. So i guess i will need to buy a replacement one.