yashsingh1/xdaforums huggingface dataset:
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] giacominos:
I gave up today, after a few updates, the last a few days ago 11.0.50 the problem was still there, it's not low audio, screen bleeding or other things that can be ignored. Not even Sim data can save you since Android choose to connect to wifi if present and the phone doesn't know it's not connected so Data can't kick in.

The phone is going back to amazon . An official statement from Xiaomi was due, such an issue should be fixed in days not months and if it's an hardware issue better told it now and call back the bad units.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] prasanthsd:
Any idea if Poco m2 pro (I guess based on the same hardware) has the same issue?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] lm_kevin:
Edit: It didnt solve the problem , it started doing it again afte 4 days of being ok

I don't know if this is really the solution for everyone or even a Permanent one for me but I was having the same issue in my 9s and I remember I had a similar issue when I had my mi a1 and it was solved not using any previous Google back up when setting up the phone for the first time .

So I did that, a factory reset and then I set it up with my Google account but I chose to skip restoring previous back up from any phone it's a little bit annoying to set up every app and loose most settings but it has been 3 days free from the wifi issue when the last 2 weeks I had it.

Maybe this is not the solution and it's a placebo and i will have the issue (I will report if that happens) but in the time it has worked.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] blowy666:
Have you taken a look into the log files of your router, if your phone really doesn't reconnect? ?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Thanks for the info, I restored a backup, because I had missing edit icon in the status bar.

Let's see if we have feedback from other users about this
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] lm_kevin:
Yeah , the log shows no constant reconnections.

I dont know why this helped but it did at least for me , i hope it helps somebody and confirm if this is somewhat a solution.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] lm_kevin:
Update: It didnt solve the problem , it started doing it again afte 4 days of being ok........fuuuuuu
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Thanks for updating us, you saved me from a factory reset, as I wanted to try :)
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] Smartie083:
This still looks like a software problem to me then.. I doubt that hardware errors will stop after a factory reset and just come back a few days later..
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
It seems that (finally) some 9s received 11.0.11.0 that fix this bug!
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] gsmyth:
Can you link to a source?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Sure, check post #15:

https://c.mi.com/thread-3281006-1-0.html
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] gsmyth:
Thanks, looks promising.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Yes it is! After 4 months it seems that they finally patched this bug :)
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] llinuxx:
Redmi Note 9, Note 9S & Note 9 Pro camera dust issue -

xdaforums.com/redmi-note-9-pro/help/redmi-note-9s-9-pro-dust-camera-lens-t4134449

from mi forumc.mi.com/thread-3278540-1-0.html

c.mi.com/thread-3239907-1-1.html

No need for more info - just google it.

Just bug after bug :)
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] gsmyth:
This is a different issue to the subject of this thread. There is an existing thread regarding the camera dust issue.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] cenovita:
Hi guys, I just read though most of this thread and I just want to confirm.

There is no solution for the wifi reconnection problem (meaning you have to turn off and on to recover the wifi connectivity).

I have a Redmin Note 8 Pro (yesterday I got MIUI 12 upgrade and the issue persist).

Thanks in advance.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] gsmyth:
Check post #303, this issue seems to have been fixed in the latest beta rom update. There had been a fix implemented in miui11 but it seemed to be more of a patch (as it didnt stop the disconnection). It just meant that you didnt need to switch wifi off and on again manually to reconnect, the patch automatically reconnected after it disconnection occurred.

However in the link in the post above, users seemed to be reporting that it seemed to be fully fixed, ie no more disconnections.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Check post 69 in same thread. The issue is not fixed. And as mentioned many times before it cant be fixed in software since its a hardware issue.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Are you sure it is an hardware issue? Do you have any source to confirm that?

As far as I know custom ROMs do not have this issue

---------- Post added at 05:04 PM ---------- Previous post was at 04:37 PM ----------

https://c.mi.com/thread-3297891-1-1.html

please check post #26, #29, #48. It seems to be fixed.

I asked the guy who reported that it isn't working if he can confirm it
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
This issue is fixed in the Snapdragon 732G soc. As you all know the note 9s uses Snapdragon 730G which has the issue.

New poco x3 phone uses 732g chip so that should be wifi issue free.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Please provide details about hardware issue, if you have any.

PS: 9s has Snapdragon 720G
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] Naroyas:
I have the update 11.0.11.0 since the Beta and ererything is now fine. The logs of my router (FritzBox 7950) are now clean. No irregular reconnect or other strange things.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Apologies got the Snapdragons mixed. 720 was one with issues and its replacement 732 fixes issues. This was mentioned many pages back about the hardware problem.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Please provide changelog for Snapdragon 732 then, otherwise it's just an unverified rumor (as it was at the time it was mentioned).

Real facts are that wifi bug is fixed in 11.0.11.0 and in custom ROMs
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] lm_kevin:
Got tired of this issue , installed custom rom and not coming back to miui ever.

And yes Custom rom has 0 wifi issues for those saying its a hardware thing.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] nicorac:
MIUI 11.0.5.0-QJZMIXM fixed the issue for me on my Redmi Note 9 Pro Global + Fritzbox 7530
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
11.0.5.0 only added a workaround, it isn't still fixed properly
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] nicorac:
Well, that's ok for me because it works and haven't (noticeably) changed the battery usage.

It's better than nothing ;)
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Yes it is, at least now it is usable :)
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
MIUI12 beta for 9S is available. Let's see if the patch is still there
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Bug finally fixed in V11.0.7.0 QJZMIXM (redmi note 9 pro joyeuse)
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] pwnaz:
Are u sure? In changelog only shows security patch xD :confused: :(
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
yes, I confirm, no more reconnections. Access point log is finally clean :)
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
issue is still present.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
model/version?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] kevindd992002:
I have a redmi 9c with miui 12 and have the exact same problem. What is the workaround to this stupid issue?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] malowz:
I got a 9T with the same problem. happening for a long time...

still trying to find the source. i have huawei fiber receiver, tplink to router/wifi, (tried a few others, same thing happens)

phone is unlocked, have magisk and edXposed, miui 12 debloated.

maybe there is something in common between the phones/wifi with this problem.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] kevindd992002:
Is there a workaround though?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
You can try to disable Group Key Update Period (set interval to 0).

Please note that disabling key update could possibly cause security issues on your network.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] kevindd992002:
Right. I have mine set at 3600 with my Ubiquiti AP's. I can return this phone and have a refund though. Does it happen for all phones of the same model though? Or are there just "lemons"?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
All phones in redmi note 9 serie have/had this issue. It was fixed in 9s and now in 9 pro (after more than 5 months...)
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
its still not fixed.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Device/version Please?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] kevindd992002:
If it'a fixed already, why can't Xioami implement the fix to all of their cellphone models? Sigh.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
After 9s fix it tooks around 1 month to fix also 9 pro... They are so slow... Bugs like this one should be fixed in days, not in months...
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] kevindd992002:
Exactly! They have stupid and lame support overall! You get what you pay for really.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Note 9s

Version: V11.0.4.0.QJWEUXM (MIUI11)
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] gsmyth:
It seems they still haven't pushed the update to that variant (EEA) for some reason. The global software has been updated to 11.0.11.0, which is the version which is said to have finally fixed the wifi issue.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] kevindd992002:
Any alternative to the redmi 9c that's not xiaomi but is in the same price range and specs? I gave up and returned the redmi 9c.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] gsmyth:
What was wrong with it?

Realme C3 is in a similar price range.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] kevindd992002:
Well, it had the same exact wifi issue as described in this thread (which is why I posted here). I cannot bear turning the wifi off and on every after the device wakes from sleep. That is not something I'm comfortable doing with a phone. It'a very lame doing that. I'm very disappointed Xiaomi cannot solve such a small but very annoying issue.

---------- Post added at 09:57 AM ---------- Previous post was at 09:55 AM ----------

Oh and btw, I had 12.0.5.0 on that device and that didn't fix the wifi issue. If 11.0.11.0 fixed the issue for the Note 9S, why isn't that fix implemented on all MIUI 12 builds?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
because the issue is not fixed and it cannot be fixed without a hardware revision. they are making changes in software to mask the issue but its not a proper fix.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] kevindd992002:
How are you certain that it's a hardware issue though?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Its mentioned on xaiomi forums and on Qualcomm support for this particular phone. Its to do with Xiaomis implementation of the chipset.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Link please?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] kevindd992002:
Yes, link please.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Links have been provided by me and others multiple times in this thread. Re-read the whole thread and you can see whats going on.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Ok, you only posted some link of xiaomi's forum, where some random people say it is an hardware issue, without any evidence.

Please provide evidence (official statements from Xiaomi or Qualcomm), if you have any.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] blowy666:
Hmm...if this is true, I wonder why there are many users (me inclusive) where the log files of the router doesn't show constantly reconnects of the device any longer after flashing the 11.0.11.0 FW?

Are the developers of Xiaomi able to hide the reconnects on the routers log file?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] lm_kevin:
Custom rom here.. no wifi problem at all. Software problem.

btw my phone had the issue when it was on miui
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Too many issues with the phone and now its got a vpn issue too. Its insane they cant fix simple issues like this and create more problems with updates.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] malowz:
i had this problem for a while now in my Mi 9T, but yesterday update apparently fixed it. WiFi is much better now :fingers-crossed:
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Odd why they not releasing an update for my phone
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] galaxy6220:
I note that from your other thread that your VPN issue was fixed after you deleted and re installed the app.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Update to 12 is now available but i havent updated it yet. Anyone done it and checked if wifi is fixed?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Updated to miui 12. Battery life seems worse. Wifi issue still present
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] gsmyth:
I'm finding battery life the same if not a bit better, was expecting it to be worse as it usually is when updates come. How did you check your wifi issue, router logs?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Router log and general operation. Wifi sometimes not connected when phone wakes up but then reconnects.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] malowz:
I've updated my Mi 9T a few days ago, the problem disappeared. but after 3 days, the problem started to show up again, and now, is back as usual, most of the time it come back from sleep, wifi does not work. need to wait a bit for it to came back to life.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Wont ever be properly fixed without a hardware revision.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] malowz:
I installed Lineage OS, the problem didn't show up anymore.

installed all the apps previously installed, everything still working fine after a week.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] hasandroid:
Hi, I plan to buy Note 9 pro, but this wifi problem prevents me to do so. Is this issue still present on 11.0.11 or only fixed for some people?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] gsmyth:
Im on global MIUI 12.0.2 now and havent experienced any wifi related issues in a long time now. ( and I spend the vast majority of my time working at home connected to my home wifi.)

If there was a work around software patch implemented, ive not noticed any negative impact of it in terms of connection/reconnection or battery life.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
Im on miui 12 issue still happens. But iv said this years ago its a hardware issue and never will be fixed.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] simone982:
Can you please share your access point settings or logs from your access point, so we can try to help you?

Probably it's something about your AP settings or you have a defective device, since it was finally fixed from version V11.0.7.0 on QJZMIXM
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
not the access point, its happening on multiple ones. looks like xiaomi getting the huawei treatment now so serves them right for putting out dodgy hardware.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
i can confirm this issue is fixed in the redmi note 10.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] blowy666:
You own a Redmi Note 10?

Where have you bought it?

All I can find on the net is a MI Note 10, and the REDMI Note 10 was announced only a few hours ago?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] slybunda:
review sample at gsmarena. asked them to check and confirmed it is working fine.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] cimdrap:
Keep us updated
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] Segadorn:
For 2 days now i have not experienced the issue again. This is wath i have done:

-Updated to 11.0.5 MIUI.

-Dissabled Wifi Assistant

I am going to go like this for one more day and then enable Wifi Assistant to see if the issue appears again.

I am in a 5g Wifi.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] cimdrap:
Yes but when you go away from your wifi range (go out from your home) do it will pass to mobile data? Should you remember everytime to change it manually?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] skezza:
Definitely a problem, although not the most serious issue I've ever encountered on a phone and you could easily fix with Automagic or something if you were absolutely desperate but I'll patiently await Xiaomi fix this via an update. At the end of the day, this is their mid-range big hitter.... if it's swamped with reports of broken WiFi.... people will stop buying. Money talks.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] Segadorn:
It pass to mobile data and then goes back to wifi when you are in range again.

As i understand it, Wifi Assistant dont manage mobile data, just manage the wifi if it loses signal to other wifi more powerful so you never lost connectivity. If you lose wifi completely the phone engages mobile data automatically.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] cimdrap:
I swithed off that option too... Let's see

I reported the bug through the feedback app hoping we are a lot doing it

Edit: no way! Keeps dropping
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] skezza:
Mine wasn't on in the first place. Still occurred.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] cimdrap:
I've been contacted by MI assistence service on whatsapp, when i get the problem i have to take a screen record and a log to send him back
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] skezza:
Sounds like Xiaomi are all over this like a rash and that's a good sign. At the end of the day.... bugs happen in all brands and there's a snobbery over brands like Xiaomi (oh they're Chinese and don't care). I've owned low budget, mid budget and premium flagships and I've had issues in all of them that were usually resolved.... this isn't a serious issue really.... it'll get resolved and in the meantime toggle your wifi or screen occasionally, sorted.

Galaxy S I9000: GPS never worked out of the box.... and no amount of these weird fixes online could resolve it.

Nexus 4: First one fizzed from the earpiece. Was replaced by Google for free.

S7 Edge: Pink line appeared down one side (replaced by Samsung), Compass never worked (always faced S when N, N when S) and pedometer was hit and miss.

In the grand scheme of things, Xiaomi will fix this WiFi bug and the device will be knocking on the door of the perfect mid-to-upper mid ranger.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] DjXavy:
Good news everyone!

Yesterday I connected to a 802.11n wifi, and so far I didn't experience issues.

Before that, I was connected to a 802.11ac wifi and I had issues everyday.

Its seems that the problem happens only when connected to an ac wifi.

I will report back after a few more days to confirm it.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] skezza:
I can also test this as my router has split bands (intentionally)
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] cimdrap:
Damn MI assistance service is waiting for my log and now everything is working ok
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] Segadorn:
Hahaha, i am in the same boat. I have not experienced the issue for few days now.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] cimdrap:
Ok it happened another 2 times, but after 1 minute i wake up the device it reconnect normally, but the problem is that it stays offline while in standby
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] skezza:
I experience on both 2.4GHz and 5GHz, so it's not that.

Has anyone cleared the data to the WiFi app? Wonder if it's a config issue or something really stupid.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] skezza:
It screams software issue. Nothing makes me think it's a hardware issue. Wi-Fi hardware issues are usually erratic.... disconnecting when the phone gets too hot, random disconnects at unexpected times, flickering re-connects etc...

The WiFi connection is very stable once connected and the issue only appears when the phone is left for a long time. I'm trying an experiment this morning with WhatsApp web. So far it's not lost connection while connected. It's some kind of daft sleep mode or power saving measure or something. Maybe they are turning the polling down incredibly low?
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] Naroyas:
What I have found so far on the internet and to recap in a nutshell is that:

- the issue occurs in both, 2,4ghz and 5ghz seperate networks or together in one SSID

- Switching the wifi standards 802.11a/b/g/n/ac has not really an effect

- Likewise changeing the Private DNS option or the use of a static IP in the network

In the Mi Community are already some other threads regarding this big Bug. A german android forum also trys to find the cause. And even a german review is mentioning this Bug. Unfortunately I have just registered here and can't post any links, but with Google you can quickly find the corresponding pages.

Many of the users have a FritzBox and they are very popular in germany. It's not an problem of the FritzBox because every other divice is working. Only the Note 9S has this problem.

The Note 9S is so far the only device available on the German/international market with a Qualcomm 720G, which makes the theory of a driver bug somehow likely. The realme 6 Pro, which also has it built in, is currently not available in markets where the Fritzbox is so strongly represented as in Germany and from this direction I haven't heard of any problems. Fritzbox is trying hard to keep all routers up to date with the latest software and the WiFi driver of the 720G might not work with certain new network standards or protocols:confused:
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] skezza:
Drivers are only software. Let's not over-complicate anything. If it's a hardware issue with 720G then you'd have an entire series of phones getting binned/recalled.

If it's a driver issue, it's no less straightforward to fix than any other software bug.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] skezza:
So my WhatsApp experiment failed unfortunately. Was working fine then after 2 hours of sleeping the WiFi cut. I've now tried a new trick using Automagic. Simple flow:

Periodic Timer (currently set at 30 mins)

IF WiFi Enabled

WiFi State Off

2 second sleep

WiFi State On.

Should hack fix it for now.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] Livingliv:
Anyone has root Access on their 9s yet? I own a Mi 8 se and had similar problems. Fixed it by editing a file in root directory to prefer 5ghz connection.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] skezza:
The dirty hack I've posted above hacks it. To be clear, not a fix... very much a hack.
[Redmi Note 9S / Note 9 Pro (Indian Model) Question] cimdrap:
Nice!

I'm not root yet, hopefully someone could test.

Which edit is it?