TP-LINK TL-MR3420

[mksquashfs4] 根目錄做成 root.squashfs-raw
[dd] loader-tl-mr3420-v1.gz + vmlinux-tl-mr3420-v1.okli = kernel-tl-mr3420-v1.bin

• loader 4630 bytes，佔用 7680 bytes
• vmlinux 928400 bytes，佔用 928768 bytes

[mktplinkfw] header + kernel-tl-mr3420-v1.bin + root.squashfs-raw (2957496B) = openwrt-ar71xx-generic-tl-mr3420-v1-squashfs-sysupgrade.bin

• header 512 bytes
• kernel 936448 bytes

https://redacacia.me/2013/03/07/debrick-your-tl-mr3420-router-with-a-serial-ttl-cable/

https://forum.archive.openwrt.org/viewtopic.php?id=32512&p=1#p146315 

Gargoyle 預設密碼：admin

UART 接頭 SJ1	Tx	Rx	GND	VCC
					Tx 10K VCC pull-up
接出線	Rx	Tx	GND	VCC
USB UART 線	綠	白	黑	紅