how to enter TP LINK RE200 V4 TFTP MODE?
You have to solder serial next to mains prongs.
No bootloader setting to enable it (no way to have two boot options)
Tell us what state your device is in, lets proceed from there.
I own one to test your concepts if needed.
i flash openwrt from stock web interface.It still fine.Secondly, I flash wrong image openwrt factory image instead of openwrt system upgrade image from openwrt. It showing like boot loop.
boot up first all led are green and then all led are green except wifi led are red. Showing like this again and again.
Was the image prepped ?
If not, you've bricked it...
Do you have unbrick method?
flash writer, and a flash dump from a working device.
Caldata is at the end, you can flash oem bin.
not if it's a brick, because OP forgot to add the boot loader to the openwrt image ?
unless you mean flash writer, when you say flash ...
The real calibration data can hopefully be recovered, with a flash-writer, before reflashing a functional image.