Sorry, i'm little newbie about flashing and OpenWRT tips.
I tried to flash my Archer MR200 v1 locked from Orange Network.
I already read the information : [OpenWrt Wiki] TP-Link Archer MR200 v1
and try to make my own files, copy the bootloader from Orange Stock firmware to the OpenWrt firmware and get the ArcherC2V1_tp_recovery.bin
but, after flash my own ArcherC2V1_tp_recovery.bin with TFTP my device is bricked only one LED is on.
I can make one for you later. The command is in the wiki. Probably just need to do it carefully. I simply used a hex editor to do this as i can see the raw data. This is how i know that instead of 200 bytes to cut, you cut 400 bytes which can only mean that you cut it twice.
Forgot to mention that you will need to rebuild the entire rom before you can flash it back. You need to include the last 3 partitions or it will have errors. This is why it is important to make a backup of original.
i'm back, and sorry for the delay because i have problem on delivery for CH341 programmer,
Finally, i unbrick my device and OpenWRT is installed (*)
I can't found the backup for my device, so, i read the flash from chip before, then modify the correct bytes for bootloader section (copy from Orange stock firmware)
Then write back, and device working.
so, is not possible to open Orange Webui ?
i think that install OpenWrt on the router can access Orange Webui and OpenWrt both, but different Ip only ?
And, i try to install back the Orange Stock firmware.bin (file size: 52.2MB) from Settings > Device > Firmware Upgrade but it shows Upload failed, so why i think also the "Temp Space 28.14MB" can't receive this firmware.