Edited by saud at 2020-10-12 17:38
Hello dear friends ! Nice to meet you. I bought the RT809H and installed the software normally. However, I can not to write a Toshiba chip THGBM5G5A1JBAIR with EMMC ISP. Of course, neither reading nor writing is possible. MyRT809H programmer finds this chip in automatic as well as manual search. Andnothing more can! I tried with EMMC_AUTO_ISP and with manual searh as THGBMBG5D1KBAIL_ISP, butin both cases I get the same writing problem . When writing, my programmer startswriting but it immediately stops with the message: "Write error, operationterminated". The program then blocks and whitens and I get a message tolook for a solution on the internet. After I click on it the programautomatically restarts and I have the same problem again, I can't write thischip!To note, I did everything correctly. I found and connected the points:CMD, CLK, D0 and GND. I did not extend the original ISP cable. I cut the CMD,CLK and D0 lines between the eMMC and the main processor. I briefly connectedthe quartz crystal of the main processor to ground. I gave the correct externalsupply voltage to the eMMC chip VCC / VCCQ = 3.3V. Despite all this, I have thesame problem. To note, with other eMMC chips as well as mainboards from anderesLCD TVs I don’t have this problems ! Here is information about the TV and themotherboard with which there is a problem: Panasonic LED TV modelTX-39ASW654 sch. LA51, mainboardTNPH1077 1A, eMMC IC 8903. I want to know what causes it. Please , I ask for your help, thanks in adwance! Thank you.
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