Unable To Scan WI-FI Networks (24.04.1-1) on redmi note 9 (merlin)

gpatel-fr

hello

you can trigger a rescan from command line using

sudo iw dev wlan0 scan

note that if it succeeds, there a big amount of information generated (redirect output to a file in this case), if not the output should fit on the phone screen, post the capture here !

lolo

@gpatel-fr said in Unable To Scan WI-FI Networks (24.04.1-1) on redmi note 9 (merlin):

sudo iw dev wlan0 scan

command failed: No such device (-19)

gpatel-fr

@lolo

wow this phone has 2 wifi interfaces, amazing. As a wild take, could you try with wlan1 ?
(Edit wlan2 -> wlan1)

I take it that you are using 20.04 OTA-11 (stable) ?

Also this bug is concerning, could you have been hit by it ?

uxes

are you sure that you habe correct android version under UT?

lolo

No i'm not sure to have the good android version. How can i check it ?

Vlad Nirky

@lolo
What is the Model of your phone printed at the back?
https://devices.ubuntu-touch.io/device/merlin/

Vlad Nirky

@lolo
If it's global
https://xiaomirom.com/en/download/redmi-10x-4g-note-9-merlin-stable-V12.5.4.0.RJOMIXM/
Choose the Fastboot ROM
But there are specific ROM for models for India, Indonesia, Russia, Turkey, EEA, Global, China.

Ruesaga

Something broke in stable at some point preventing wifi scanning on Redmi note 9 pro and Redmi 9 (from my testing). Use the ubports installer to reflash and select 24.04/daily and wifi will be working OK

Vlad Nirky

@Ruesaga
I have two Xiaomi Redmi Note 9 Pro.
One for tests (and back up) and one for my daily use. (20.04 several OTA, and actually one on 24.04-1.x Stable and the other under 24.04-2.x)
I have flashed with ubport installer more than 30 times each one.
Starting from the right Android Stock ROM, I never had any problem with any parts of those phones. All is working well.
As UT is talking with Halium (10 in my case) and Halium is talking to previous Android parts left in place during install, the previous Android MUST be the right one. Not near, not another.
Now, I can only refer to my experience...
My FAI device, the mobile network from Orange.

Ruesaga

@Vlad-Nirky Thank you for this response, Its interesting to hear. I have a similar set up too, one note 9 pro for daily use and one for a back up and testing I installed the stock roms but versions 12.0.2.0 and I think I also tried 12.0.1.0 so now I'm interested in trying the stock rom you mention above. Compatibility I've been finding is good other than the odd sound issues and slow switch from home wifi to mobile data when I leave the house, sometimes i have to toggle data off and back on, so I'm interested if changing the stock rom improves those areas. I will try this on my backup when I have the time

Vlad Nirky

@Ruesaga
I find that these phones work really well with UT. My preferred ROM for the 9 Pro is the joyeuse_global_images_V12.0.1.0.QJZMIXM_20201107.0000.00_10.0_global_eb964f842a
But recommended is 12.0.3