Re-Stocking TP-link MR200 archer

the other option is to use an external programmer to read/write the bios. You may need to desolder or use a soic8 clip to do this

So this one is correct and it shouldn't brick my router? I have MR200 (o2-cz) too.

as long as your router is the same with his and must be version 1, then yes.