Mar 14, 2013

TP-Link TL-MR3020 JTAG Repair

Serial Connection Pins

1. Tx
2. Rx
3. Gnd
4. Vcc (3.3 V)


setenv serverip

tftpboot 0x80000000 openwrt-ar71xx-generic-tl-mr3020-v1-squashfs-factory.bin

erase 0x9f020000 +0x3c0000

cp.b 0x80000000 0x9f020000 0x3c0000

bootm 0x9f020000

Reset IP Address

uci set network.lan.ipaddr=
uci set network.lan.gateway=
uci set network.lan.dns=
uci commit
/etc/init.d/network restart


This is not JTAG connection / repair.
This is a serial connection and with this connection the router can be reflashed only if it have a valid bootloader.
This router have a U-boot bootloader.

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