PS: on my original EDID Reader pin 7 of the DIP 8 socket was also grounded with pin 4 but I guess there is no need to include pin 7 since it already worked on our HDMi Reader where it wasn't connected either. Pin 7 is the Write Protect pin of a 24c02 eeprom. And according to the datasheet it must be connected to Vcc or to Vss (gnd). Better not ground this pin because it will allow to overwrite the existing data. And when pin 7 is high it is Write Protected. But only the upper half of its memory 80h-FFh. But it also depends on the chip that was used in the LCD panel. Reading however normally never should cause any risk to the present data of our LCD chip memory.

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Addendum!: It must even be possible to readout the 'Bios'chips on LCD screens by connecting the HDMi reader 8 DIP socket to the 30 pins or 40 pins LVDS connectors as here follows, making it also a so called EDID reader! (which stands for Extended Display Identification Data)! But keep in mind to only provide the right maximum LCD LVDS voltage being 3.3V or 5V depending on the screen used. Which is easy when the voltage is set first on the universal programmer before reading the chip data. Again only 4 pins are needed. GND=pin 1 on the 30 pin LVDS, pin 10 on the 40 pin LVDS connector and pin 4 of our DIP 8 socket. VEEDID = pin 4 on both LVDS connectors and also pin 8 of our DIP 8 socket. EDID CLK = pin 6 on both the LVDS connectors and also on our DIP 8 socket. And last but not least EDID DATA = pin 7 on both LVDS connectors and pin 5 on our DIP 8 socket in our programmer. Data measured from an original existing EDID copy cable that worked exellent on my RT809H!

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Understood dicksy. But can't you also just order online from Aliexpress on the links I gave in above comment? Or do you mean that now also the post offices are closed in your country too, and no one delivers at your doorstep because of the pandemic now? The electronic shop in my town doesn't have any of the items so I always need to order online. And then just wait several weeks for the items to arrive.

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thank you very much mr albert.these days we are quarantined because of pandemic.all the shops are closed.after this i will make your tool and let you know the result.thanks again

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Yes of course by selecting a 24c0X eeprom it must work on your programmer too dicksy! I haven't got a rt809F programmer myself, so haven't tested this but I'm sure you can read and likely write to the HDMi ports this way too! As long as there is a 2 wire communicating eeprom in your device that answers.

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