Sigaptech.com – If you have previously upgraded your TP-Link MR3420 V5 to OpenWRT and one day want to return to the original firmware, the first thing you should do is try flashing via TFTPD with the original firmware, right?. But the problem is if you do this it will make a soft brick or if on a smartphone it’s called a bootloop.

So later the TP-Link MR3420 V5 will have all the lights on and the WAN lights will turn orange and flash continuously. But don’t worry if you are having this problem I will share how to solve it.
Tools to download
- OpenWRT Firmware
- Firmware Original MR3420
- TFTPD
- WINSCP
- Putty
Just go to the tutorial
How to Restore MR3420 V5 OpenWRT to Original
- If the MR3420 is already bootlooped (I call it that for convenience) make sure to reinstall it to OpenWRT using TFTPD (you must already know how to install it via TFTPD because you have already installed OpenWrt before).
- If you have returned to OpenWRT then change the Original Firmware to code.bin
- Then change the connection of the MR3420 with the laptop using wifi (by default wifi SSID Openwrt)
- Open WinSCP and connect to 192.168.1.1, if it is already open please copy it code.bin to tmp folder folder
- If it has been copied then open PuTTY with IP 192.168.1.1 and type the following script
cd /tmp
press enter < pre>
dd if=code.bin of=tplink.bin skip=256 bs=512
press entermtd -e firmware -r write /tmp/tplink. bin firmware
press enter
Original
- Done
How? Easy isn’t it