*Fix* Slow WIFI with Bluetooth enabled

[bertiespeed]

Since the Redmi 8 don't have 5ghz Wifi capability we are stuck with 2.4ghz wifi and on my 2 Redmi 8 devices with Bluetooth enabled that kills the speeds to about 5mb. Apperently Bluetooth and 2.4ghz wifi run off same hardware or software and don't appear to play nice together..

I use multiple different wifi connections a day and was a problem for me. Anyway so this was the workaround that fixed the problem for me and my device. Pretty simple and straight forward and suppose it could work on other devices with same issue..


Always only try this at your own risk.. *As Root is Required*

First off: I'm located in Canada, could be different in another region.

I have a unlocked bootloader
latest stable Xiaomi.eu rom for the Redmi 8 installed
Official TWRP installed..

2: *Root Required*
Download and Install latest version of Magisk and flash via TWRP

3: Download and install Service Disabler from Playstore and Grant su permission after opening the app .

4: Search for Google Play Services and click on that .

5: Scroll down the list till you find NearbyMessagesService and click it to disable it permanently.

6: Now Make sure you have Google's "Nearby" functionality disabled

Go-to your Google account - Device connections - Devices - Show Notifications off.

Now back to settings - Passwords and security - Location - Scanning - turn all off

And reboot.


Now my other device is on stock MIUI and I haven't tried this on stock rom as of yet. It's my wife's device so if she lets me I will test this on her device as same issue is present.

In time I will try to see if this "fix" will retain if I unroot the device after..

*Update* this will continue to work if you unroot device.

*Update* when I installed latest Xiaomi.eu rom 11.0.10 sometimes it don't work till I reboot. Not sure why yet.

 

[ahmedsheme]

thanks for sharing
but for me I just changed the Channel used in my router and everything works fine

 

[shirruy]

Since the Redmi 8 don't have 5ghz Wifi capability we are stuck with 2.4ghz wifi and on my 2 Redmi 8 devices with Bluetooth enabled that kills the speeds to about 5mb. Apperently Bluetooth and 2.4ghz wifi run off same hardware or software and don't appear to play nice together..

I use multiple different wifi connections a day and was a problem for me. Anyway so this was the workaround that fixed the problem for me and my device. Pretty simple and straight forward and suppose it could work on other devices with same issue..


Always only try this at your own risk.. *As Root is Required*

First off: I'm located in Canada, could be different in another region.

I have a unlocked bootloader
latest stable Xiaomi.eu rom for the Redmi 8 installed
Official TWRP installed..

2: *Root Required*
Download and Install latest version of Magisk and flash via TWRP

3: Download and install Service Disabler from Playstore and Grant su permission after opening the app .

4: Search for Google Play Services and click on that .

5: Scroll down the list till you find NearbyMessagesService and click it to disable it permanently.

6: Now Make sure you have Google's "Nearby" functionality disabled

Go-to your Google account - Device connections - Devices - Show Notifications off.

Now back to settings - Passwords and security - Location - Scanning - turn all off

And reboot.


Now my other device is on stock MIUI and I haven't tried this on stock rom as of yet. It's my wife's device so if she lets me I will test this on her device as same issue is present.

In time I will try to see if this "fix" will retain if I unroot the device after..

*Update* this will continue to work if you unroot device.

Also working for descendant os thanks

 

[ariw182]

thanks for sharing
but for me I just changed the Channel used in my router and everything works fine

i have the same problem, i change the channel in my router, but still the connection is cut half when i turning bluetooth

 

[ahmedsheme]

i have the same problem, i change the channel in my router, but still the connection is cut half when i turning bluetooth

try channel nom 10 or 11

 

[killerscope2]

guys you have slow wifi because your wifi and bluetooth are using 2,4ghz they interfere with eachother you need to download an app like wifi analyzer and go to the last tab then look which channel isnt used and use the channel which isnt used i hope i helped you

 

[AndreAPL]

without root is there any fix?

 

[Skinupanother]

Yes WiFi and Bluetooth in same frequency range but that should not cause problem. My mi 8 lite manages to communicate with my mi band 3 and use WiFi ok. I had an ulefone and that worked ok. I had a blackview and that worked ok. The redmi note 8 pro did not. At first I thought it was maybe a bad chip that was leaking so tried another with same result. So its hardware related or software. But it's not the fact of both using same frequency band. As Bluetooth is not as strong a signal I would have expected that to drop not WiFi.
Xiaomi should have sorted this by now. Miui 12 still hasn't fixed this.

 

[NokiaMokia]

Fix for home wlan use

Yes WiFi and Bluetooth in same frequency range but that should not cause problem. My mi 8 lite manages to communicate with my mi band 3 and use WiFi ok. I had an ulefone and that worked ok. I had a blackview and that worked ok. The redmi note 8 pro did not. At first I thought it was maybe a bad chip that was leaking so tried another with same result. So its hardware related or software. But it's not the fact of both using same frequency band. As Bluetooth is not as strong a signal I would have expected that to drop not WiFi.
Xiaomi should have sorted this by now. Miui 12 still hasn't fixed this.

This is a big problem and Xiaomi should fix in the next update!

However if you mainly use Wifi at home, change the wifi frequency to 5ghz and the problem is gone.
In my modem/router you can do separate 2,4ghz and 5ghz networks (both work at same time), so my Laptop and Xiaomi phones are on 5ghz (a lot better speed in both) and old hardware are in the 2,4ghz network.

Didn't know this before, but now also my laptop wifi speed came from 30-40mb-> 120mb.

 

[AndreAPL]

This is a big problem and Xiaomi should fix in the next update!

However if you mainly use Wifi at home, change the wifi frequency to 5ghz and the problem is gone.
In my modem/router you can do separate 2,4ghz and 5ghz networks (both work at same time), so my Laptop and Xiaomi phones are on 5ghz (a lot better speed in both) and old hardware are in the 2,4ghz network.

Didn't know this before, but now also my laptop wifi speed came from 30-40mb-> 120mb.

Redmi 8 doesn't support 5ghz network as stated in first post ...

 

[SleepDays]

Yes WiFi and Bluetooth in same frequency range but that should not cause problem. My mi 8 lite manages to communicate with my mi band 3 and use WiFi ok. I had an ulefone and that worked ok. I had a blackview and that worked ok. The redmi note 8 pro did not. At first I thought it was maybe a bad chip that was leaking so tried another with same result. So its hardware related or software. But it's not the fact of both using same frequency band. As Bluetooth is not as strong a signal I would have expected that to drop not WiFi.
Xiaomi should have sorted this by now. Miui 12 still hasn't fixed this.

Are you kidding me? Well, what a waste of mobile I have bought ... everything is fine except for something as important as connectivity. Ok Xiaomi ... Does anyone know of any ROM that this failure does not pass? so far all the ones I've tried happen the same ... :crying::crying:

 

[hollol]

I also tried the proposed fix (on latest Stock rom / Android 10) and unfortunately it did not work Any other suggestions how to solve this extremely annoying bug?

 

[kouseralamin]

I also tried the proposed fix (on latest Stock rom / Android 10) and unfortunately it did not work Any other suggestions how to solve this extremely annoying bug?

Install a custom rom like HavocOs

 

[WEDSON]

I have the solution ===>>> youtu . be / WMksEEKXlJY

The problem is interference with Wi-Fi and Bluetooth Scanning.

DISABLES THESE TWO CONFIGURATIONS

On MIUI 11:

SETTINGS >> Passwords & Security >> Location >>> Scanning >>>
Wi-Fi scanning> (OFF)
Bluetooth scanning> (OFF)

On MIUI 12

SETTINGS >>> LOCATION >>> Scanning >>>
Wi-Fi scanning> (OFF)
Bluetooth scanning> (OFF)

This will solve the problem of drops in the wifi.

It is NOT POSSIBLE to use Bluetooth in conjunction with wifi. But with these settings disabled, you can use wifi with better quality (as long as Bluetooth is disabled).

 

[hollol]

I have the solution ===>>> youtu . be / WMksEEKXlJY

Thanks. I watched the video, but unfortunately it is not in English, so I didn't really understand what the actual solution is. For me it seems, that your main "trick" is to switch from 2.4GHz to 5GHz WIFI, is this right?
Would it be possible for you to write a short manual on your steps here in English, that would be great!

Thanks, Lars

 

[WEDSON]

Thanks. I watched the video, but unfortunately it is not in English, so I didn't really understand what the actual solution is. For me it seems, that your main "trick" is to switch from 2.4GHz to 5GHz WIFI, is this right?
Would it be possible for you to write a short manual on your steps here in English, that would be great!

Thanks, Lars

The problem is interference with Wi-Fi and Bluetooth Scanning.

DISABLES THESE TWO CONFIGURATIONS

On MIUI 11:

SETTINGS >> Passwords & Security >> Location >>> Scanning >>>
Wi-Fi scanning> (OFF)
Bluetooth scanning> (OFF)

On MIUI 12

SETTINGS >>> LOCATION >>> Scanning >>>
Wi-Fi scanning> (OFF)
Bluetooth scanning> (OFF)

This will solve the problem of drops in the wifi.

It is NOT POSSIBLE to use Bluetooth in conjunction with wifi. But with these settings disabled, you can use wifi with better quality (as long as Bluetooth is disabled).

 

[hollol]

Thanks for the update.
Have already disables these options, but was hoping to be able to use Bluetooth in conjunction with WIFI, since my smartwatch is always connected to the phone by Bluetooth
So unfortunately no final solution for me :crying:

The problem is interference with Wi-Fi and Bluetooth Scanning.

DISABLES THESE TWO CONFIGURATIONS

On MIUI 11:

SETTINGS >> Passwords & Security >> Location >>> Scanning >>>
Wi-Fi scanning> (OFF)
Bluetooth scanning> (OFF)

On MIUI 12

SETTINGS >>> LOCATION >>> Scanning >>>
Wi-Fi scanning> (OFF)
Bluetooth scanning> (OFF)

This will solve the problem of drops in the wifi.

It is NOT POSSIBLE to use Bluetooth in conjunction with wifi. But with these settings disabled, you can use wifi with better quality (as long as Bluetooth is disabled).

 

[or0m]

try channel nom 10 or 11

It worked!
Thanks for the suggestion, moving from channel 6 to 13 did the trick! I can finally watch videos with Bluetooth speakers.

 

[Tonygan GSM]

Would Xiaomi.EU fix these issues? If so, I'll aim for that ROM!