Great,you have bootloader with working TFTP.
You cant flash sysupgrade image,you need TFTP image that has first 128k padded.
I will prepare one today,I did not include that image because there are 840N v5 with bootloader that will.completely wipe your flash when trying to TFTP.
Stock firmware also has padded images like that for TFTP
Yep I have that, actually. I've been playing around with it for quite some time since version 4.
My default setting that causes the LEAST issues (but still a lot), is
uci set wireless.@wifi-iface.disassoc_low_ack=0
uci set wireless.@wifi-iface.max_inactivity=86401
uci set wireless.@wifi-iface.skip_inactivity_poll=1
uci set wireless.@wifi-iface.wpa_group_rekey=0
uci commit wireless
with txpower at 20 (100mw, horrible range).
Is it feasible you think to build it with the mediatek blobs? (lede thread I started above)
I doubt you will be able to use Mediateks blobs.
I think that Mediateks drivers don't use mac80211 and cfg80211 like the mainline kernel does for anything 802.11 as standard.
They use patched old kernel version in which they basically completely bypass them.
Yes I have made MTK wifi driver blob work, I want to run it on my VoCore2 and other LEDE device. But currently it still have critical bugs, its speed will become low after minutes. I am still working on this but I guess the process is a bit slow.. There are ten thousands of code need to clean up. If you are interesting help boost this, email me at email@example.com. Later I will public a firmware on my blog so everybody could test the blob...I was planing to make it perfect then public