Hi,
You may remember me from this post or this.
I have a "NAS" with a openwrt 14 as stock firm. Here it is.
The model is SSK cloud F100. There's no custom rom for this device, but it has a mt7620n.
I tried several things to improve the performance with no success (low knowledge).
It would be great to update to v21, for instance. My questions:
-Do I have any chance of success if I flash an Archer c20 firm or other mt7620n firm?
-Can I be sure of unbricking my device using the stock firm and the serial connection if I try a custom build?
Thank you one more time...