Emmc RT809H and Sony kd55x8505c SK Hynix H26M52103FMR

saud

Hello guys
The problem is I have this tv with almost dead Emmc if I hold Vol - and Power button for about 40 sec. it goes in Recovery mod but does not want to boot from USB . I read the Emmc H26M52103FMR 16Gb and shows that User date is damaged corrupted. I have bought the same Emmc I copied all Boo1 Boot 2 and CSD_EXT file 512 kb from oem old emmc and the user date 14.6Gb from another dump but same model TV. Reballing reading and writing went without any problems but when I soldered back on PCB the TV does not go even in Recovery mod totally dead.I found out that when RT809H copied Emmc content with BGA socket RT-BGA169-01 V2.5 change boot config byte in CSD_EXT file and the CPU does not know from where and which boot to choose so the question is here do I have to change the CID and CSD in the new Emmc which is the same as the OEM but I have decoded the oem emmc and the new in the new is written that is made it by Toshiba Sandisk and one another company in the old one is written that is OEM emmc and not secure card emmc.
Is there someone who succeed in repairing this emmc or the problem is still available ?
In my opinion the software of RT809h Is not good enough because there is no way to change CID of the emmc not able to change CSD_EXT file and when is reading and saving the date change some bytes in CSD_EXT register.
Maybe I did a mistake with this programmer because it's capabilities are very limited ..
I hope there is someone who bump into the same problem with RT809H and this socket V2.5.
I have sent a few question to Ifix.cn.com but let's see what is going one these days.
in other words this programmer is pointless ..
Best Regards

352558561

The view of an old repairman; Rt809 series products are well-known among Chinese repairmen, of course; This product is only developed for existing products in China, and there may be deficiencies in the application of some foreign products. If there are good products, you can also recommend them to us.

晨星电器

352558561 2022-7-15 21:04
The view of an old repairman; Rt809 series products are well-known among Chinese repairmen, of cours ...

That's right. That's it

技术支持008

The full name for ECSD is EXT_CSD, which stands for "extended Register" and is the special register configuration file that corresponds to your eMMC chip. For example, the eMMC chip's boot mode, storage structure, boot storage and other special information Settings, storage area. This area can be rewritten only partially, as detailed in the eMMC standard.

saud

技术支持008 2022-7-16 09:35
The full name for ECSD is EXT_CSD, which stands for "extended Register" and is the special register  ...

Does this mean the RT809H developer is just Chinese junk that you shouldn't waste your money on?

saud

Does this mean the RT809H developer is just Chinese junk that you shouldn't waste your money on?

saud

Dear Sir / Madam, Chinese Engineers !
I managed to fix both my Sony android TVs! I was able to program the eMMC chips correctly but not with your RT809H programmer. Unfortunately, your programmer does not have that option! I wrote the software on a new eMMC with a „Easy-Jtag plus box“ with an adapter. Now both my TVs are working perfectly normal!
EMMC chips Sony Android TVs  can not be written with RT809H ! I tried writen these  eMMC chip with RT809H through ISP, that connected, I could see the eMMC- I could read and write to it, but the my Sony TV didn't turn on, it didn't show any signs of life.
I had the same problem with programming eMMC chips with Panasonic TVs! So Yours RT809H programmer has major flaws. My opinion is that you have a problem with the program. Your program does not allow correct chip partitioning and RPMB settings! Dear friends, you need to compare the operating program of your RT909 H programmer with the program of "Easy-Jtag plus box" programmer and repair Yours program.

saud

352558561 2022-7-15 21:04
The view of an old repairman; Rt809 series products are well-known among Chinese repairmen, of cours ...

Dear Friend !
EMMC chips Sony Android TVs  can not be written with programmer RT809H, Mainboards 1-894-596-22. 1-894-595-12  
and others !  I tried writen these eMMC chip with RT809H through ISP, that connected, I could see the eMMC.
I could read and write to it  but after writing the my Sony TV didn't turn on, it didn't show any signs of life.
I had the same problem with programming eMMC chips with Panasonic TVs! So Ifix RT809H programmer has major flaws,
he can't do writen this eMMC chips!

I managed to fix  my Sony android TVs! I was able to program the eMMC Sony Android TV chips correctly but not with
RT809H programmer. I wrote the software on a new eMMC with a „Easy-Jtag plus box“ with an adapter. Now my  Sony TVs
are working perfectly normal! My opinion RT809H  have a problem with the operating program? Operating program RT809H
does not allow correct chip partitioning and RPMB settings! Engineers-programmers at the IFix company who make the
operating program for the RT809H need to compare this operating program with the program of "Easy-Jtag plus box".
I think that the programmer RT809H would get more possibilities!