TCL 65S450F no logo, bleeping sounds?

[nomoresonys]

Worked for me, brought me here: https://faserf-my.sharepoint.com/per...2FT800T02&ga=1

[Diah]

go to this post and click on the link T800T02

[Diah]

I can't download that. It forwards me to a Microsoft page and wants me to login?

what had this to do with Microsoft.. i downloaded and extracted it and its correct at end you have 2 firmware version with format .img just rename all into V999.img

use firefox browser as i do , all other are rubbish and work as advertising machine.

my Firefox had the extinsion addon ( ublock origin )

[sam_sam_sam]

I can't download that. It forwards me to a Microsoft page and wants me to login?

Yes and you have to have access to this program to be able to access it “Office 365 services”

Unfortunately I do not have access to this program anymore because I did not renew it when it expired

[CapLeaker]

hmmm i thought you did fixed it with firmware LOL

go here and download the first T800-img unzig iz´t and put iz in formatted USB fat32 plug tv out from wall and insert the stick... press power key and keep pressing while you plug it in wall.. release the power untill you see on screen upgrade...
you may need also to rename the file to V999 good luck

I can't download that. It forwards me to a Microsoft page and wants me to login?

[Diah]

i figured I'll try it and see what happens.

hmmm i thought you did fixed it with firmware LOL

go here and download the first T800-img unzig iz´t and put iz in formatted USB fat32 plug tv out from wall and insert the stick... press power key and keep pressing while you plug it in wall.. release the power untill you see on screen upgrade...
you may need also to rename the file to V999 good luck

[CapLeaker]

Good price for a new board.

i figured I'll try it and see what happens.

[CapLeaker]

Canada shopping sucks so bad. I get things directly from China sometimes within 4-5 days lol. Did I mention I'm banned from Canada for life. Oh well

problem with Canada is that we are taxed to death. Duty for this, tax for that, then you need a broker... another fee. A lot of times if we Canadians buy from the states, by the end everything is said and done, it costs double what the price actually was. Lithium batteries are the worst. Go to Mouser, Digikey, Allied etc. None ship those little lithium batteries to Canada. I tried once with Allied 6 years or more, and the shipping was a whopping US$80! For a coin cell battery with tabs on it! All because it had to go UPS ground and special shipping etc. It's nuts.
China stuff isn't cheap here anymore either. Our government did really great the last 9 years making sure every Canadian is getting hoodwinked.

[nomoresonys]

Good price for a new board.

[EazyBone]

Canada shopping sucks so bad. I get things directly from China sometimes within 4-5 days lol. Did I mention I'm banned from Canada for life. Oh well

[CapLeaker]

Hopefully it will cooperate better than this tv has, fingers crossed.

I still don't get the LVDS to come on. Found a new main board on Fleabay for CAD$60 incl. shipping. Should have it in 2 weeks.

[nomoresonys]

Hopefully it will cooperate better than this tv has, fingers crossed.

[CapLeaker]

Getting interesting again,

Unless we find the right FW for that board, I think the TV will never run like it supposed to. At the same time I would like for the screen to come on and just display “something” to verify the panel is good. The brains work, but there is absolutely sweet diddly squat on the LVDS. I may have a little time to work on that thing today. If all measures fail, I need a new board to continue .
Arrrgh! I broke the slider nut on my metal lathe! Come on! Apart it goes. Dayum. I still have to shorten 8 out of ten wheel bolts for my car and get about 1/8” machined off.

[nomoresonys]

Getting interesting again,

[Diah]

The only label on the main board is on my post 66

its T800

[CapLeaker]

at yours case need firmware as ,img format not zip.. so it will be downgrade if the version you found less than the one now on the set.
write there at xda,,, it was there .img but no more to download... the threat owner look he is from asia and have access to TCL easy to give you one after you upload there the SW label of yours MB

The only label on the main board is on my post 66

[Diah]

at yours case need firmware as ,img format not zip.. so it will be downgrade if the version you found less than the one now on the set.
write there at xda,,, it was there .img but no more to download... the threat owner look he is from asia and have access to TCL easy to give you one after you upload there the SW label of yours MB

[Diah]

we found it... Amlogic Soc called T800 platform or Just T

go to XDA and dounload as zip to put it on root usb stick and use the method of the power key as i explained before for example V127

[Diah]

I am going to try Diah's other trick first.

before you go for debranding , let us try to wake up the Soc GPU, as yours set working now 100% but with out GPU output.
use external source HDMI with yours TV HIDMI input with function ARC , play movie how long you can..... beside it also put several JPG Photos with 1080P resolution on USB root and insert it in USB Port same time... the idea to make the Soc crazy with sources which it need GPU. this could help to repair its self and switched it on.

other things as you want to test the panel... show here please the clear high resolution photo of the panel edge boards specially to the area of 2 LVDS sockets

[CapLeaker]

Towards the bottom they have options, one says get more help-amazon support, boy howdy there's nothing like trying to go thru 2 entities to get one piece of firmware or do you need more? I noticed it's there but not clickable on that screen, lol=nightmare https://support.tcl.com/troubleshoot...arch=156097362

I am going to try Diah's other trick first. I never seen such a poor support on a TV . No wonder Amazon said to put it into the . FireTV my @$$.
So far I cannot proof that the screen is shorted, since I don't see anything happening on the LVDS. If Dihs other trick doesn't work I am going to try a new main board and see what that does.