Can't upgrade Xiaomi Router 3G to 21.02 rc3

Installing and Using OpenWrt
1

Hi!
My Xiaomi 3G (v1) router was running 19.07.7 version. When I tried to upgrade it to 21.02 r3 that was downloaded from the official site, I got the following error:

Device xiaomi,mir3g not supported by this image Supported devices: xiaomi,mi-router-3g R3G mir3g xiaomi,mir3g - Image version mismatch: image 1.1, device 1.0. Please wipe config during upgrade (force required) or reinstall. Reason: Config cannot be migrated from swconfig to DSA Image check failed.

Then I perform force upgrade without keeping the setting, and the router didn't came to life. It didn't boot, didn't send any packet on LAN. I could recover 19.07 from the breed bootloader. I also tried Openwrt 21.02 that I compiled by myself with the same result. 21.02 images for Xiaomi router 3Gv2 and 3G PRO gives me the same warning.
What is wrong?

2

Same issue with the 21.02.0 stable as well.

Interestingly, the Table of hardware page still shows 19.07.8 the latest supported version for mi3g

3

Thanks, I downgraded to 19.07.7 as well, but I'm lacking wireless now, I can get the menu entry in LuCI if I create a /etc/config/wireless. Just it makes no sense then, does anyone have a working /etc/config/wireless as template for me ?

4

found one

config wifi-device 'radio0'
	option type 'mac80211'
	option channel '11'
	option hwmode '11g'
	option path 'pci0000:00/0000:00:00.0/0000:01:00.0'
	option htmode 'HT20'
	option disabled '0'

config wifi-iface 'default_radio0'
	option device 'radio0'
	option network 'lan'
	option mode 'ap'
	option ssid 'Gargoyle'
	option encryption 'none'

config wifi-device 'radio1'
	option type 'mac80211'
	option channel '36'
	option hwmode '11a'
	option path 'pci0000:00/0000:00:01.0/0000:02:00.0'
	option htmode 'VHT80'
	option disabled '0'

config wifi-iface 'default_radio1'
	option device 'radio1'
	option network 'lan'
	option mode 'ap'
	option ssid 'Gargoyle'
	option encryption 'none'
5

I have 21.02.0-rc3 running on my R3G, upgraded from 19. I don't use breed though.

6

Since I was still RC3, I thought I'd try... so I just downloaded 21.02.0 sysupgrade file, and installed using LUCI. 21.02 rc3 -> 21.02.0 stable.
Upgraded21.02

All looks OK so far.