Before installing OpenWrt on my ZTE MF286A I backed up stock firmware as described here (Method 2). It was a good step-by-step guide. Now I want to go back to stock firmware, I have 130MB of saved mtd's from 0 to 15 and I've searched everywhere but couldn't find any tips on how to correctly flash these back to router.
Please explain how it's done, or maybe point me to the instructions that I somehow missed.