A preview and download link are shared via Advance Electronics (Note: Check comments for potential passwords).
A detailed ISP connection photo is available on OneTV-SRT . Full Dump/Firmware: Download MS638 PC822 EMMC Pinout rar
For successful ISP connection without powering the whole board, you often need to ground the Crystal (OSC) pins to "kill" the CPU activity during the read/write process. Download Resources A preview and download link are shared via
Specific pinout and instruction sets can be found on Remont-Main . Software Access Codes Download MS638 PC822 EMMC Pinout rar
Files and diagrams for various models using this chassis (like Manta 60LUA58L) are hosted on OneTV-SRT Downloads .
You can find the pinout diagram and firmware files (.rar) at the following locations: