Dumping, unbricking or downgrading firmware by soldering wires inside TV

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szt
Posts: 56
Joined: Wed Jun 24, 2015 10:27 pm

Dumping, unbricking or downgrading firmware by soldering wires inside TV

Post by szt » Sat May 27, 2017 2:38 am

How exactly this can be done? There must be some NAND flash memory somewhere. It is possible to reprogram flash memory using good old LPT port from the PC? I can make some stuff with ATMEGA controller btw

Look https://www.youtube.com/watch?v=1ZiH8WVkatg here how people do PS3 downgrading. I want to do something like this. Where to solder wires?

sectroyer
Official SamyGO Developer
Posts: 5743
Joined: Wed May 04, 2011 5:10 pm

Re: Dumping, unbricking or downgrading firmware by soldering wires inside TV

Post by sectroyer » Mon May 29, 2017 4:46 pm

No known way :)
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 http://ctrlv.it/ Otherwise "NO HELP"!!!
If you want root DISABLE internet access to your device!!!!
DO NOT EVER INSTALL FIRMWARE UPGRADE !!!!

szt
Posts: 56
Joined: Wed Jun 24, 2015 10:27 pm

Re: Dumping, unbricking or downgrading firmware by soldering wires inside TV

Post by szt » Tue May 30, 2017 9:41 pm

I see here viewtopic.php?f=91&t=10691&p=90789 some guys dumped some stuff from TV (in "hardware" way). How did they do it?
flowswitch wrote:
Tue May 31, 2016 9:10 am
Our reckless team have dumped both SPI flash and eMMC from 55J5500. Here are some pieces (a full dump is too big, 4GB)
Any tips, guides?

szt
Posts: 56
Joined: Wed Jun 24, 2015 10:27 pm

Re: Dumping, unbricking or downgrading firmware by soldering wires inside TV

Post by szt » Tue May 30, 2017 11:05 pm

bugficks maybe you have some ideas?

Feuerbard
Posts: 27
Joined: Thu Jul 26, 2012 1:33 am

Re: Dumping, unbricking or downgrading firmware by soldering wires inside TV

Post by Feuerbard » Wed Aug 08, 2018 2:47 am

buy emmc programmer like rt809H (not recommended) or UFPI and ISP adapter and you can (not easily but possible ) dumped and restored samsung firmwares from latest tv ,and possible firmware downgrade (with hdcp and ci+ key loss easily and with restore keys not easily )

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