Hi. I have installed openwrt on the router with TFTP. Now I want to restore the original firmware, but i can't. i have not done the full flash memory dump. What i have tried:
Download firmware from the tplink download center. It is file about 57MB in size (why it is so huge?). When i flash this image with TFTP, router becomes non-functional, all leds are blinking. Then I flash openwrt with TFTP, routers works.
In openwrt docs for mr200 v1, i found " mr200_back_to_stock.bin", i flashed this with TFTP (router becomes non-functional), then i flashed as in point 1, same result - router becomes non-functional. Then i restored openwrt, router works.
Is it possible to restore the original stock firmware? What i need to do? Full dump of memory of untouched router memory, then write it to my router? Where can I find it? Is it possible to restore with firmware from tplink download center (maybe should i need extract the image from this huge file?)
Question: Why did you installed OpenWrt in the first place, without saving the old memory dumps?
And why you want to go back now?
Within the documentation is clearly written: "...there is no going back. Recovery is ('only') possible by using a CH340a Programmer or a Raspberry Pi, SOIC8 connector/adapter is required, refer to Backing Up your Router for more information."
Next you need to know if your router was 'carrier specific' or not. (I can not find anywhere how to find that out.)
If your device was 'carrier specific', i doubt you can even go back without any (known) backup.
When not 'carrier specific', you tried(2) the file "mr200_back_to_stock.bin" by tftp, but it should be done within the OpenWrt Backup Flash option (Web gui).
(https://openwrt.org/toh/tp-link/archer_mr200?s[]=mr200#reverting_to_stock_firmware)
If this works, next install latest OEM firmware.
If your device was 'carrier specific' there is nowhere a file to restore (some specific data was on the router itself and is gone without a backup, like mac addresses and or config-data for wlan etc.).
Full memory dump is only there if you made it before flashing the router with something else.
Hopefully the restore within OpenWrt with the "mr200_back_to_stock.bin" file does work.