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Hello , i'm a french TV repairman , and I'm new on your forum .I've a RT809H , when I've a mainboard with a NAND Tsop48 I can desolder it , read it and solder it again .But on the smart-tv the soft is biggest and in bga IC .On many mainboard SAMSUNG i find testpin :FA_TX , FA_RX , USB_SEL ,EEPROM_GND , EEPROM_SCL , EEPROM_SDA , EEPROM_WP ,H_RESET , SUB_SDA , SUB_SCL . I'm looking for a method to dump the software of the mainboards SAMSUNG smart TV without desolder the BGA memory with the RT809H ISP cable .
If someone of you use this method I would be very happy to have some advice .
Thanks
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