Dump of UN46B8500 Need help/info

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juusso
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Re: Dump of UN46B8500 Need help/info

Post by juusso » Sun Jun 17, 2012 10:01 am

Damn. Apologize. This shouldnt happen.

What is the debug output on exlink cable? This may not help to revive tvs, w/o reflashing uboot and unlocked kernel before to flash exe.img , but helps to know what's wrong... No jtag howtos here. But if you're skilled you get support here.
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kpkev
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Re: Dump of UN46B8500 Need help/info

Post by kpkev » Sun Jun 17, 2012 10:09 am

so is there any chance i can flash it with like a jtag setup. i am pretty handy with a soldering iron.

kpkev
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Re: Dump of UN46B8500 Need help/info

Post by kpkev » Sun Jun 17, 2012 10:20 am

when i open serial port in putty there is nothing happening. the tv has a blue light on and when power in pluged in it automaticly tries to start the tv but goes to a black screen.
Am i missing something with the ex-link how do i use it.

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juusso
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Re: Dump of UN46B8500 Need help/info

Post by juusso » Sun Jun 17, 2012 12:47 pm

If you set rs232 debug before to flash and your cable is working with proper pinoit, then you should see some debug info.

the treatment of this brick is used mainboard from sane tvs model, I don't believe the software way Is possible. Bad I haven't warned you before that this what we made was really experimental and can have such consecuences. Really sorry about that.
LE40B653T5W,UE40D6750,UE65Q8C
Have questions? Read SamyGO Wiki, Search on forum first!
FFB (v0.8), FFB for CI+ . Get root on: C series, D series, E series, F series, H series. rooting K series, exeDSP/exeTV patches[C/D/E/F/H]

DO NOT EVER INSTALL FIRMWARE UPGRADE

kpkev
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Re: Dump of UN46B8500 Need help/info

Post by kpkev » Sun Jun 17, 2012 7:44 pm

ok i have located the flash chip i think(PMC Pm39LV010-70JCE) data sheet http://doc.chipfind.ru/html/pmc/pm39lv01070jce.html

I can get to the WE,CE,OE,V+,gnd to solder with no problems.

what program can i use to flash my dump over and what should be the connections from the chip pins to the lpt port. like CE to what pin on the lpt and so on.
I have some experience flashing xbox 360 nands and dvd drive firmware so i am not tottaly in the dark.

any help or suggestions would be greatly appreciated.
Kevin

kpkev
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Re: Dump of UN46B8500 Need help/info

Post by kpkev » Sun Jun 17, 2012 8:22 pm

update after further inspection i determined that it was the wrong chip.
the right one is http://www.datasheetdir.com/KFH8GH6U4M+NAND-Flash

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Re: Dump of UN46B8500 Need help/info

Post by arris69 » Sun Jun 17, 2012 8:35 pm

kpkev wrote:update after further inspection i determined that it was the wrong chip.
the right one is http://www.datasheetdir.com/KFH8GH6U4M+NAND-Flash
i think you'll need not just special program, also the firmware must be in OTF format.
dunno that someone ever did this with samsung onenand chip at home :cry:

kpkev
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Re: Dump of UN46B8500 Need help/info

Post by kpkev » Sun Jun 17, 2012 9:04 pm

http://img820.imageshack.us/img820/4779 ... 144247.jpg
This is an image of the chips on the mainboard.
When I made the dump was there a special format it was done in or could I do a byte by byte rewite to the chip using the dump I made. I only flashed block 10. Could I rewrite just that block?
I also need to figure out the alternative pinouts.

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Re: Dump of UN46B8500 Need help/info

Post by arris69 » Sun Jun 17, 2012 9:12 pm

kpkev wrote:http://img820.imageshack.us/img820/4779 ... 144247.jpg
This is an image of the chips on the mainboard.
When I made the dump was there a special format it was done in or could I do a byte by byte rewite to the chip using the dump I made. I only flashed block 10. Could I rewrite just that block?
I also need to figure out the alternative pinouts.
you made the dump from linux vfs layer (at os level) this is totally other format as on the raw chip...
some hw specialist maybe can tell you more exact things.

kpkev
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Re: Dump of UN46B8500 Need help/info

Post by kpkev » Sun Jun 17, 2012 9:17 pm

Do you know of anyone on the forum that has the technical know how possibly?

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