Dear Sir!
1.) Did you understand me well? Did you read my previous text and see photos? I tried another Panasonic TNPH 1077 1A mainboard. I did everything according to your instructions.
I cut the DO.CMD and CLK conductors leading from the eMMC chip to the main processor. I also grounded the quartz crystal of the main processor. My RT809H programmer managed to do a READ eMMC chip. Dump software from the eMMC chip is stored on my computer.But when I tried to do WRITE with the new software my programmer couldn't do it. I had a problem like in the attached photos. I have tried WRITE a few times and I always get the same! On the display of my laptop I see the information off the error and that I have a CRC error! What is a CRC error? Do you know that?
2.) Writing eMMC chip an my RT809H programmer not only stops but the program completely blocks! See the photo! Does this seem like a serious mistake? Why is this happening? Maybe the eMMC chip is faulty or the program in it is locked in some way? If the chip is faulty why can READ be done and WRITE cannot. If the chip is faulty can the RT809H show a chip error? (My old NAND programmer "Pro-man" can show it)
3.) I watched on You tube your movie how you successfully did WRITING on the mainboard TNPH1077 1A. I have no doubt about you at all! Was your Panasonic mainboard TNPH1077 1A completely correct when you tested it? To note, both mainboards I tried to fix were defective from before! Panasonic TV with these mainboards stands in st-by and cannot be turned on with remote control or manual controls. With the remote control st-by red LED flashes but the TV does not turn on. After a few minutes on st-by TV gives error code X13, which indicates a malfunction in eMMC (this is a malfunction in the software, so they claim from the Panasonic service).
4.) After an unsuccessful attempt at writing (WRITE) I can no longer do READ at all, which I could have done earlier! I get a read interruption report and error info! Now my TV no longer blinks erorr code X13 with a delay, but immediately starts flashing continuously red!
5.) My colleague , service technician from Ukraine claims to me that the RT809H programmer cannot solve this problem and that the only real solution is to replace the eMMC chip with a new and programmed one. He does this successfully and repairs Panasonic mainboards: TNPH1077, TNPH1111, TNPH1100 and TNPH1120. However it is too expensive for me and it doesn’t pay off for me. I still think that with the RT809H this problem can be solved somehow. Please help me!
6.) Let me mention: I recently bought this RT809H programmer in China via Aliexpress. Maybe my programmer is a fake? Maybe a Chinese seller cheated on me and sent me trash?
If that is true, I have to complain and make disputes against that seller, let him return my money to me!
Best regards!
Saud
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