Xiaomi Mi Router 4A Gigabit Edition (R4AG/R4A Gigabit) -- fully supported and flashable with OpenWRTInvasion

Yes, i believe thats the way to turn it off.

Might get backported as 21.02 is not fully out yet.

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hello do you think all the bugs in will be gone in the official release? I'm currently using 15 meters lan cable now to connect my mir4ag to the internet because the WiFi bridge has a bug on wifi speeds it drops like hell and the packet loss is always there...

@db260179 updated to 19.07.8

Thank you.

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Does 19.07.8 support 802.11r 802.11k 802.11v? Im trying to use the latest rc4 but wifi keeps dropping after some time, i need r/k/v so roaming working seamless with other 2 Mir3, 1 UAP + 1UAP-AC

I currently using @db260179 latest build and I think i will stick to his build because it's stable...RC3 and RC4 it's losing internet connection by itself even though i'm not doing anything

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Searching for MT7621 disconnect problem, have found a issue on github about country setting.. Remove country from my config, seems to be stable for now

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Thanks for info, I've been suffering a lot of disconnections since moving from Samsung Galaxy Note 8 to S21 Ultra and so far (although v. early days observations) this appears to help reduce reconnects from aforementioned newer device...

FYI, I'm currently running a custom build (with EEE/flow control edits) of @db260179 19.07.x code from about 190 days ago...

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Since removal of setting "country", no more clients disconnect
OpenWrt 21.02.0-rc4 r16256-2d5ee43dc6

How can the setting be removed?

MT7621 - Clients disconnecting · Issue #430 · openwrt/mt76 · GitHub

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via ssh

uci del wireless.radio0.country
uci del wireless.radio1.country
uci commit
wifi reload
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Can you use all 5 GHz cnannels?

I bricked my 4A Gigabit by flashing this one. Can somebody can provide a stable .bin on v19.07.8?

What did you do?
It is working on my device

OK, I was made fool by WIFI interfaces that were turned off after reboot ;)))

It's working as well, thanks to the contributors!

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im on channel=auto
since its working i will not try anything else.. lol
but in previous tests i think some channels dont work
im happy now with stable wifi on this ap

Hello,

just getting in this thread as a Xiaomi 4A Gigabit arrived here.

I noticed one thing at the original firmware boot, that it mentions CPU0 to 3. OTOH, everywhere I checked about the number of cores, the information is that the CPU is dual-core (like, for instance, here: https://openwrt.org/inbox/toh/xiaomi/xiaomi_mi_router_4a_gigabit_edition).

Even in the OpenWRT boot log which is at the router page, there are conflicting hints:

by one side, in U-Boot:

"ASIC MT7621A DualCore (MAC to MT7530 Mode)"

and in the Linux kernel:

[ 0.000000] CPU0 revision is: 0001992f (MIPS 1004Kc)
(...)
[ 0.105963] CPU1 revision is: 0001992f (MIPS 1004Kc)
(...)
[ 0.205999] CPU2 revision is: 0001992f (MIPS 1004Kc)
(...)
[ 0.287100] CPU3 revision is: 0001992f (MIPS 1004Kc)

May I hope that this CPU could be quad-core?

Thanks,
Luiz

It has two virtual and two physical cores afaik.

MT7621A has 2 cores / 4 threads, see https://wikidevi.wi-cat.ru/MediaTek_MT7621

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