backing up license key

Hello,

I bought a hAP lite hardware with license level 4. I’m going to experiment with putting lede on top of it. So I’ve created a backup of my license key via /system license output. My question is if at a later time I preflash the device back to routeros how am I supposed to transfer the key back to the device? The format of the key in the backup file doesn’t seem suitable for direct entering via the gui ?

I think you can read the answer here.

https://wiki.mikrotik.com/wiki/Manual:License

Great that you remember this part. So you can go back to routeros.
Don’t forget to take backup of the hole nand, before you do anything.