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I am a beginner in dead boot repairing software work. Recently a China keypad mobile (coolsand) was dead by wrong rom flashing. Now PC is not recognising that phone since it is dead boot.  This mobile has RX, TX, VCC, GND, printed points on motherboard. Can I connect it with my easyjtag plus & repair the dead boot phone by flashing it original backup rom which in .bin format. My main concern is where is RX, TX points in my easyjtag plus box. Is it ethernet port present in the front side of the box?
in General questions by (180 points)

1 Answer

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Hello. Easy jtag software dont support working with uart interface. If its nand or emmc memory, you can connect directly to memory and flash dump (if you have it). Also if you have software that works with coolsand cpu, you can use easy jtag uart port for connection.
by (198k points)
Rj45 port in easyjtag plus is used for UART port, right?
Yes, its simple uart.
Can you guide me which is TX, RX pin in RJ45 jtag plus? If a phone has RX, TX  for flashing software, is there any way to flash it. I searched on YouTube & found that maricle box can flash phone which has RX, TX. But I don't want invest in another box just for flashing few keypad phones.
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