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Re: TV D-Series Firmware Downgrade (SamyGO Proof of Concept)

Posted: Mon Jul 10, 2017 6:54 am
by daviddrf
Michal wrote:
Mon Jul 10, 2017 6:43 am
if it were Weltrend I know from experience that neither the LED does not come on you.But everything is possible.If they were an eeprom, I could have sent you the programmed ones.You would have exchanged yourself too.
Thank you Michal for your help. What of this two components is "Weltrend"?:

oneNAND = KFG1GN6W2D
eMMC = SDIN502-2G

Thank you again.

Re: TV D-Series Firmware Downgrade (SamyGO Proof of Concept)

Posted: Mon Jul 10, 2017 7:42 am
by Michal
Not one. Weltrend is chip WT61P .....

Re: TV D-Series Firmware Downgrade (SamyGO Proof of Concept)

Posted: Mon Jul 10, 2017 7:53 am
by daviddrf
Michal wrote:
Mon Jul 10, 2017 7:42 am
Not one. Weltrend is chip WT61P .....
Aha, OK Michal, thank you for the information. So the problem is that we don't know what specific component of my mainboard is defective due the symptoms I described. Is that right?

PD: I've found more videos of programs manipulating NANDs: https://www.youtube.com/watch?v=qeV3GRiXQKI

Re: TV D-Series Firmware Downgrade (SamyGO Proof of Concept)

Posted: Mon Jul 10, 2017 8:28 am
by juusso
From your logs from exlink i am pretty sure your NAND has some problems whether boot partitions or kernel possible are unreadable. Thats why tv goes to bootloop.

Re: TV D-Series Firmware Downgrade (SamyGO Proof of Concept)

Posted: Mon Jul 10, 2017 8:32 am
by Michal
YES, Write me again number mainboard, When I find,I'll send it to you.You do you send your defective,I'll fix it.

Re: TV D-Series Firmware Downgrade (SamyGO Proof of Concept)

Posted: Mon Jul 10, 2017 8:43 am
by daviddrf
Michal wrote:
Mon Jul 10, 2017 8:32 am
YES, Write me again number mainboard, When I find,I'll send it to you.You do you send your defective,I'll fix it.
Thank you a lot Michal. Would be this the right information you need or require?:

Image

I can send you my defective mainboard if you want or need.

Re: TV D-Series Firmware Downgrade (SamyGO Proof of Concept)

Posted: Mon Jul 10, 2017 10:03 am
by Michal
ok I'm going to look

Re: TV D-Series Firmware Downgrade (SamyGO Proof of Concept)

Posted: Mon Jul 10, 2017 10:05 am
by daviddrf
Michal wrote:
Mon Jul 10, 2017 10:03 am
ok I'm going to look
Thank you. What I didn't understand is what you want to do. What's your plan?

Re: TV D-Series Firmware Downgrade (SamyGO Proof of Concept)

Posted: Mon Jul 10, 2017 10:17 am
by Michal
My English is very bad.therefore probably misunderstood.When I find the mainboard,I will send it to you.You will send me the broken.I'll fix it.

Re: TV D-Series Firmware Downgrade (SamyGO Proof of Concept)

Posted: Mon Jul 10, 2017 10:23 am
by daviddrf
Michal wrote:
Mon Jul 10, 2017 10:17 am
My English is very bad.therefore probably misunderstood.When I find the mainboard,I will send it to you.You will send me the broken.I'll fix it.
Ah OK, I can understand you, your English is OK, no problem. If you need more help or information ask me for it. Thank you again.