Re: cello c55sfs4k firmware problem
sorry forgot to mention the update file name is 6520-0.1.115_boot_and_full_aml_upgrade.img.user.signed
Michaelrobbo
Member
Last Activity: 03-24-2022, 12:56 PM
Joined: 03-10-2020
Location: Liverpool
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cello c55sfs4k firmware problem
bit of a weird one long story short firmware corrupted on my cello tv so wont but into android tried getting a replacement motherboard on ebay but they keep coming with hiya security on them i wrote to cello and they sent me the usb with the firmware on but for the life of me cant get the firmware to load it says to plug in the usb and keep hold of menu on the tv and boot but i get the little robot on the screen then it just boots in to recovery any idea??? the update file name is 6520-0.1.115_boot_and_full_aml_upgrade.img -
Re: Panasonic 65fx700b intermittent tcon problem
Got a copy of the 65inch tcon epprom if any one needs itLeave a comment:
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Re: Panasonic 65fx700b intermittent tcon problem
Caps to removes are c410 to c419 and c400 to c409...Last edited by Michaelrobbo; 04-28-2020, 06:10 PM.Leave a comment:
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Re: Panasonic 65fx700b intermittent tcon problem
Can confirm the problem was with the dc-dc ic part number sw50212 but couldn't source one it would only work when heated so was failing not the solder so to fix I got a working board off a 55inch and did an epprom swap and removed some capacitors hope this helps people with the same problemLeave a comment:
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Re: Panasonic 65fx700b intermittent tcon problem
Heres a picture on what it would do after the TV would warm up you then turned it off and on and then it would work this will fix this problem models also effected are 65fxw724...Leave a comment:
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Re: Panasonic 65fx700b intermittent tcon problem
Finally managed to sort this if anyone has the same problem you order a tcon for the 55fx700b 6871l-5478a and your remove 2 sets of caps from the board will put the numbers up tomorrow then use a ch341 programmer to read the epprom of the previous 5491a board and flash it to the new board or just do a chip swap with 24a32 epprom on the board. Now the TV runs great known issues with this model of TV and the tcons are near impossible to get hold ofLeave a comment:
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Re: any got a r850-1hn clean bios
[url]https://drive.google.com/open?id=1UahgW-3d126UCBXtqSuj1RX20zkwSn9M[/url]Re: any got a r850-1hn clean bios<br...0zkwSn9M[/url]Leave a comment:
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any got a r850-1hn clean bios
need a bios for a tecra r850-1hn if anyone has it -
Re: Panasonic 65fx700b intermittent tcon problem
Do you know anyone in the UK that could do it and how much? Reakon I'd do any damage swapping the tco. With the 55 inch model maybe if I swapped the epprom chip over of the old one if all the other parts match uoLeave a comment:
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Panasonic 65fx700b intermittent tcon problem
Bought the TV about a month ago faulty as it would take about an hour to turn on turns out it was the tcon board as with a reflow has been working great for a month but now the problem is returning upon looking for a replacement there are none on the Internet looked everywhere the only board I can find close is for a 55fx700b which has the same sub model which is a 6870C-0757A but a different main part number mine is a 6871L-5491A and the one for the 55fx700b is a 6871l-5478h anyone had any joy in swapping theses or repaired the original board any help would be appreciated -
Re: New Members - please post your introductions here
Hi am Michael am 25 from Liverpool United Kingdom and been fixing tvs for as long as I can remember got it from me dad who used to fix crts and VHS back in the dayLeave a comment:
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