Database Info

[KERNEL] data streaming/VOIP in standby, wifi module for HTC's OTA 2.6.35.10 kernel

Edit 31/07/2011
Updated diff files for gingerbread kernels (HTC and AOSP), and a module for the more recent HTC kernel (2.6.35.10-g308ba26) can be found later in the thread Here.
The current issue...
Note: This isn't related to the sleep mode wifi disconnections caused by MAC addresses that don't begin 00, so far as i'm aware that's been patched for a while now. Wifi remains connected fine in standby mode, but the throughput is only suitable for very light traffic.
Since compiling the cifs module for the HTC official 2.2 kernel on monday i hit a pretty massive problem when listening to music over wifi from a network share - when the screen enters standby, bandwidth drops massively, well below 100kbps. This makes music you're playing from a cifs share over wifi stutter and cut out and basically become pointless.
A little googling and searching these forums i came to find this has been a fairly massive bugbear of the nexus one and htc desire? Any kind of normal bandwidth streaming over wifi is practically useless once that screen goes into standby. Ditto for high speed transfer of large files.
That means difficult VOIP calls, and no internet radio at a decent bitrate, or cifs access to your music library.
Finding a solution...
As luck would have it, the HTC Incredible 2.6.32.15 source code was released on tuesday, and as it's basically the non-GSM variant of the Desire, i was fairly certain the HTC customised bcm4329 source code was the same as the Desire's, and it seems like it is. So armed with HTC's customised bcm4329 module sourcecode and the output of dmesg when the phone was in various states, i had a poke around.
First of all i tried editing the DTIM update interval, so the phone would wait fewer beacons to collect incoming packets while the wifi was in sleep mode, and this improved the situation, barely. In the end i just locked out the phone's deepest wifi sleep mode, PM_MAX, in favour of PM_FAST, the low power mode for wifi used when the screen is active but the phone is relying on the battery alone (There is a third mode, PM_OFF, used when the phone is powered by a usb connection, but as the name implies, all power management is disabled by it, so forget that one).
PM_MAX appears to have a very fixed latency depending upon the DTIM update interval (300ms with DTIM as the default 3), and severely limited bandwidth. PM_FAST appears to be a listen mode or active rx mode, with latency scaling to the bandwidth used. An initial ping at idle will be up to 1000ms (or even no reply) before steadying at 100-300ms. During light streaming it's more of a steady 50-70ms, and during a file transfer it's a very low 5ms. So it looks like PM_FAST keeps the wifi receiver powered up to some extent, and only powers up the transmitter when needed.
You can guess the edit i've made: Essentially my new kernel module tells the phone to keep wifi in low power mode when the screen is switched off, rather than in a full sleep mode.
Just give me the damn kernel module...
Downloads are attached to the bottom of this post.
Files are unsigned, and install with clockworkmod recovery's 'Install zip from sd card' option.
Your wifi driver must match your phone's kernel version. To check your kernel version go to Settings - About Phone - Software Information and look at Kernel version.
Files including _N_ in the name have wifi mode N support for HTC kernels (non HTC kernel versions should include mode N by default).
If you don't see a version of the module that matches your kernel version, post a request in this thread.
The results..
Well obviously now the wifi bandwidth when the screen sleeps is the same as when the screen is active, so streaming data during sleep mode is perfect, wonderful even! However, i was a little concerned with the effect on battery usage when the connection is alive but fully or partially idle.
So i just did some practical testing. Note i'm connected using 802.11g, my router doesn't support mode n, and my signal is a less than ideal -80dBm so i'm probably using a little extra power.
With the original HTC wifi module, my phone lost about 1% charge an hour with wifi permanently enabled, push gmail enabled, and sync for weather and contacts every 15 minutes.
With the new wifi module, and the same conditions (wifi always on, gmail push, sync 15 mins), i lose around 1% an hour still. Excellent, no difference.
60 minutes of 200kbit VBR mp3 playback through the speaker with the screen off used about 8% of my battery.
60 minutes of 800kbit FLAC playback through the speaker with the screen off used up 10% of my battery.
volume was set at roughly 75% for both tests.
I didn't do any testing with the earphones, but i suspect they'd be marginally lower on the power usage.
To conclude, from my brief testing this afternoon i couldn't discern a difference in battery usage when the wifi connection is left on but mostly idle, and when data is streaming it doesn't eat the entire battery charge in minutes.
Note to ROM authors
Any rom authors using 2.6.32.15 who would like to include this module in their rom, you're quite welcome to. You don't need to credit me either, although it would be nice.

This looks like it could be interesting, but I downloaded and tried to install the b/g/n version and Clockwork spits it out, aborting it as a bad zip.
Anyone else succeed in applying this mod?

Quist said:
This looks like it could be interesting, but I downloaded and tried to install the b/g/n version and Clockwork spits it out, aborting it as a bad zip.
Anyone else succeed in applying this mod?
Click to expand...
Click to collapse
Disable sign check?

xmoo said:
Disable sign check?
Click to expand...
Click to collapse
Signature check was disabled. I'm running an unsigned version of Paul's v8 WIP rom (lightning fast by the way).
Anyway, double checked and manually toggled the sign check on and off again, still same results:
Can't open...
(bad)
Installation aborted.

I just downloaded the b/g/n file and rebooted to clockworkmod and it applied without error.
Possibly you have a bad download? does the zip file open on your computer?
I'd recommend you download again, open the zip on your pc to check it downloaded properly, then copy it to your phone. Let me know how you get on.
Edit:
Just reuploaded without the signature (and erroneous boot.img stuffed in each zip by Kitchen), i downloaded and installed both versions to be sure they work. Links are updated in first post.

Works great.
I use "Twonky Server" to view pictures on my TV and the connection was lost as soon as the phone went to sleep mode. No problem now!
Thanks.

Anymore information about g or n mode?
Im still unsure if it would be good to enable n mode... there were some reports about significant higher battery drain.
Can someone compare the g and n versions running on a stock-near rom?
Thanks in advance!

Myshkinbob said:
I just downloaded the b/g/n file and rebooted to clockworkmod and it applied without error.
Possibly you have a bad download? does the zip file open on your computer?
I'd recommend you download again, open the zip on your pc to check it downloaded properly, then copy it to your phone. Let me know how you get on.
Edit:
Just reuploaded without the signature (and erroneous boot.img stuffed in each zip by Kitchen), i downloaded and installed both versions to be sure they work. Links are updated in first post.
Click to expand...
Click to collapse
Before you re-uploaded it, I noticed that when I downloaded it directly to the phone, it was clipping it at 47 kb (both the standard browser and Dolphin). Apparently Rapidshare is doing something strange through the phone browsers.
Anyway, it worked fine even before you re-uploaded. Good one!
Now I just have to figure out why I keep dropping the wifi connection after a while (didn't do that before).

May I ask you such you are using to have those incredible values for battery?
1% with WiFi and Sync (over 3g?)is a dream for me !
Thanks.
Sent from my HTC Desire using XDA App

sjauquet said:
May I ask you such you are using to have those incredible values for battery?
1% with WiFi and Sync (over 3g?)is a dream for me !
Thanks.
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
The wifi signal is only -80dBm, but barely used at idle. My cell signal is amazing though (the cell tower is 100 yards from my flat), and i run the phone in 2G mode with no mobile data. My sync is done over the wifi, not the cell network.

Nice. This is exactly what I want.
Have you looked at 2.6.34.1 kernel by the way? It is the one that most AOSP ROMs in this forum build on and I do not think I have met the latency problems with those ROMs.

tested and works great my friend

A bit more info on the battery usage in this wifi power mode...
I've been out all day and took my other phone, i left the Desire on the desk, 2G 5 bar signal, wifi always on, sync enabled for gmail and weather. Battery was charged to 100 then unplugged.
After 16 hours, battery is at 93, and battery usage breaks down to:
cell standby: 34%
wifi: 33%
phone idle: 33%
That's roughly 2.5% battery usage over 16 hours, from an idling wifi always on connection just doing 15 minute syncs all day, on a fairly poor -80dBm wireless-g network.
I think it's safe to say the power usage differences are negligable compared to the stock wifi module.
Regarding the 2.6.34.2 kernels, i'm not entirely sure if i'd look at them, since they don't include HTC's own kernel changes, i'm a little wary of them working properly with all the features. Part of it is i like the sense-ui too, it seems responsive, and i'm not lacking for free ram, so i'm not sure why people dislike it so much?

I just tried to reproduce the initial effect with the original WiFi module and some music streams. Switching off the screen actually sets my ROM into powersave mode at 245MHz only. Still, I did get smooth streaming without any problems.
Is there any good way to recreate and test this issue? I simply seem not to have it.
Thanks!

I don't suppose this will work on 2.6.34 kernels, will it? I'm trying to find a fix for OpenDesire (CM6 based)...

bemymonkey said:
I don't suppose this will work on 2.6.34 kernels, will it? I'm trying to find a fix for OpenDesire (CM6 based)...
Click to expand...
Click to collapse
I'm afraid not, since the module kernel version has to match the running kernel version.
The HTC roms also use a modified wifi driver with some of their own custom code added for VoIP and a few other things, so i'm not entirely sure the sleep functions are the same in the stock bcm4329 (wifi chipset) driver.
I'll check out the opendesire kernel source and post a patch file to apply to the source if it's possible though.

Myshkinbob said:
I'll check out the opendesire kernel source and post a patch file to apply to the source if it's possible though.
Click to expand...
Click to collapse
That would be AWESOME. Might as well patch Cyanogenmod as you're at it, as all the other AOSP ROMs (including OpenDesire) will receive those changes down the line
I should warn you though: My request has already been met with resistance... some people seem to think that this is actually the way WiFi should work in standby (i.e. it should be connected, but shouldn't actually be able to do anything ). Is a toggle setting (between PSP and CAM) in any way possible?

I thought about a toggle when i first made the patch, but then i'd have to learn to add a /proc interface to the driver to do that. I'm far from a kernel guru, and hadn't touched kernel code in years till i got my Desire last month.
I had trouble locating the new git for opendesire, the old one appears to be closed. So i got hold of the teamdesire 2.6.34.5 CM6 source instead, i expect the two are identical or very close to being so.
While i was looking for the opendesire kernel source git in the rom thread, i noticed the hostility toward altering the wifi power management mode, but at least for the HTC-modified driver it's not a problem. I leave my wifi connected whenever i'm at home, and my results for overnight standby are hard to tell apart. I lose between 5-8% battery over 12 hours of standby depending on txts and pushed emails received.
Here's a patch for the CM6 stock bcm4329 driver. It's power management code is a little different to the HTC-written driver, but it should work fine. I don't really want to wipe my phone to test it on opendesire, so one thing you'll want to test is standby battery usage. I get 6-8mA standby according to CurrentWidget.
To apply it, cd into <kernel source root dir>/drivers/net/wireless/ and copy the .diff there, then do
Code:
patch -p0 < bcm4329_pmfast.diff
then it just needs a make modules with the crosscompile toolchain etc.
Let me know how you get on.

Myshkinbob said:
Here's a patch for the CM6 stock bcm4329 driver. It's power management code is a little different to the HTC-written driver, but it should work fine. I don't really want to wipe my phone to test it on opendesire, so one thing you'll want to test is standby battery usage. I get 6-8mA standby according to CurrentWidget.
To apply it, cd into <kernel source root dir>/drivers/net/wireless/ and copy the .diff there, then do
Code:
patch -p0 < bcm4329_pmfast.diff
then it just needs a make modules with the crosscompile toolchain etc.
Let me know how you get on.
Click to expand...
Click to collapse
I guess I didn't read your previous post carefully enough - thought you were talking about just posting a patch in the form of an update.zip, or a replacement driver file to push via ADB in Recovery...
I think this is a bit over my head . You may not be a kernel guru, but you're talking to an average Windows user here
Let's see if I understood this correctly: This actually patches the source code of the wireless driver by adding/removing code, before compilation? Hmmm, I'd need to learn how to compile Android first, I guess (my experience with compilation is limited to hitting the "Compile & Run" button in Visual Studio)...
Thanks for the hard work though. I'll hit up AdamG and Kali and see if they feel like integrating this...

Oh, sorry
if you're familiar with adb, do an adb shell and then in the console do...
Code:
cat /proc/config.gz > /sdcard/config.gz
then attach that to a reply here. I need the 2.6.34 config to build the module here, then i can just post a zip to apply in the recovery console.

[Q] Very weird power problem, need help with experts

Hi there
I'm very happy with my 8 month old htc desire but now i have very weird power problem, normally my battery get lost about %1-2 per hour.Two days ago my phone have %60 power in night, when I woke up in the morning my phone was shut down. When I look my log file I see %8-10 power lost per hour at night. Here my to do list to solve problem:
- I did change the rom to another one, problem is there
- I change the battery with my friends htc desire, problem is there (anyway battery is fine with my friends phone)
- I change the Radio file to old one, problem is there
Thats the end my knowledge Any suggestion?
ps. so sorry my poor english i hope you understand

1. What ROM are you using?
2. Are you on wifi at night, or just 3g?
3. Did you install any apps?
4. Check which apps are using the juice. It could be anything.

sakai4eva said:
1. What ROM are you using?
2. Are you on wifi at night, or just 3g?
3. Did you install any apps?
4. Check which apps are using the juice. It could be anything.
Click to expand...
Click to collapse
1. I was try sense 3 coolex, insertcoin, CM7 etc.
2. No connection at all, just phone
3. Yes but not much, titanium backup, market access etc.
4. When i check with system manager there is no one using it

Try sticking to a Gingerbread build and then use the power management to track who's using power. It could be your alarm app pulling wakelocks and switching on the screen. Mine does it often enough.
Another way to save battery is to switch to GSM (PRL) in your *#*#4636#*#* config for phone.

Slow Wifi download

Hi, when I download something with my PC/Nexus 5 I usually get download speeds of about 11mbits, but when I try to download files from the Play Store/the Browser on my OPO I have download speeds of ~2mbits... If I download for example 4 files at the same time with the browser it goes to 8mbit... It cant be the fault of the download server, because it gives me full download speed on my other devices...
Anyone who has encountered the same problems/who knows a fix?
Thanks, Tom.

same... Speed test on my one is just slow... I just got it today compared to other wifi or just data transfer seems slow

Change the TCP Congestion Algorithm on your phone, search on how to do it. My wifi speeds are perfectly fine, getting 80Mb/s+ on my wireless n router.

thought it was just me...

I had the same issue. You have to go to settings, WiFi and then click on advanced WiFi and uncheck WiFi Optimization.

Turned WiFi optimization off and back in business.
Now to figure out proper network settings. I find the phone not on 4g when it should be

Gordie88 said:
Turned WiFi optimization off and back in business.
Now to figure out proper network settings. I find the phone not on 4g when it should be
Click to expand...
Click to collapse
I'm glad I could help.

OuncE718 said:
I'm glad I could help.
Click to expand...
Click to collapse
Hi, I know the thread is old but my download speeds are slow with my OPO. And just with my OPO. (Iphone, Ipad, Former HTC One M8 works fine)
I realised it with the Facebook App and in the Google Play Store.
When I open the Store and go e.g. to games section, it shows me the games apps but not their pictures. If I turn off WiFi it works well.
Same in Facebook, I can read the comments but can't see the pictures. Again, turning off WiFi and using my mobile connection works fine.
I turned off the optimization, but it didn't help.
It increased the download speed (Speedtest App from Ookla) to 25 Mbits (from 12 with optimization) but the surfing problem remained the same..no pictures in Google Play Store e.g.
Im getting 40 Mbits with my Ipad 3 (without losing any) and 60 mbits with my Notebook.
I restartet the phone (shut down, wait 10 sec, turn on), turn off and on the wifi optimization, checked my WiFi-Channel with "WiFi Analyzer".
When i turned on the flightmode and then turned on only WifI, I got 55 Mbit download! My connection worked fine for a few minutes and went back to 12 Mbit (with optimization) and 25 Mbit (without optimization)
How can I fix this issue? Surfin with WiFi at home is not possible like that, even when I'm getting 25 Mbit as downloadspeed, which would be more then fine to surf on the phone..
Edit:
Im running the newest: 11.0-XNPH38R

Hey folks!
It's worth checking, take a look into Settings -> Performance -> per-app profiles. Make sure it's unticked.
With that option enabled I had maximum download/upload speed up to 5Mbps and it was driving me crazy, I was thinking of selling 1+. Anyway, disabling per-app profiles saved the day and download speed was as on N5.
Hope it helps.
Pavel

Upgraded from Droid 4 to Mini. Can you help me solve some annoyances?

Wasnt sure where to put this, seems like the Mini is usually included with things involving the Ultra.
So I finally bit the bullet and upgraded to the Droid Mini with Verizon. Thankfully the onscreen keyboard is far superior to my Droid 4.
It is currently unhacked, rooted, etc...All stock, aside from the handful of apps I installed for regular use.
1. my D4 I could freely turn the GPS/Location off/on with the power bar. Turning it back on just sent it right back into working operation. On my Mini it will not let me turn it off completely with the power bar, instead I am forced to go into settings and disable it. That then prompts warnings about how the world will blow up if my phone doesnt know my location. I am then prompted to agree to the notices every time I re-enable GPS/Location. Is there any way to make it behave "silently" like on my D4?
2. Sync and data seems "spotty". The Mini will show full 4g connection, but apps will not sync or update like they would on my D4. Gmail, G-Voice, Facebook, etc. I have to go in and manually update them or I will recieve notifications hours afterwards, and usually all at once. Even browsing Facebook via the browser is spotty. Is there some way to force these things to stay up to date like on my D4? Texting with g-voice and FB worked nearly instantly on the D4. I'm assuming there is some sort of data and battery preservation going on that might need disabled? I do notice that when I drag the menu down from the top it shows my "4g" in Orange, not sure what that means?
3. Chrome browser doesnt seem "touch-friendly". I preferred using the android browser on my D4, and it had the touch menu that would pop up from the sides and allow me to easily move around the web. Chrome seems to browse the web much much bettter, but lacking those touch controls is annoying.
4. The camera app is lacking in options that my D4 had, is an aftermarket camera app my only option?
5. I had an app on my D4 that is apparently no longer available. Is it possible to save it from the D4 and then install it on the Mini?
6. FoxFi wifi no longer works, but it seems to be a known issue at this point.
Overall I'm very happy with the Droid Mini, great performance. I wish it had an SD slot, but otherwise quite happy!

rubenk_ said:
Wasnt sure where to put this, seems like the Mini is usually included with things involving the Ultra.
So I finally bit the bullet and upgraded to the Droid Mini with Verizon. Thankfully the onscreen keyboard is far superior to my Droid 4.
It is currently unhacked, rooted, etc...All stock, aside from the handful of apps I installed for regular use.
1. my D4 I could freely turn the GPS/Location off/on with the power bar. Turning it back on just sent it right back into working operation. On my Mini it will not let me turn it off completely with the power bar, instead I am forced to go into settings and disable it. That then prompts warnings about how the world will blow up if my phone doesnt know my location. I am then prompted to agree to the notices every time I re-enable GPS/Location. Is there any way to make it behave "silently" like on my D4?
2. Sync and data seems "spotty". The Mini will show full 4g connection, but apps will not sync or update like they would on my D4. Gmail, G-Voice, Facebook, etc. I have to go in and manually update them or I will recieve notifications hours afterwards, and usually all at once. Even browsing Facebook via the browser is spotty. Is there some way to force these things to stay up to date like on my D4? Texting with g-voice and FB worked nearly instantly on the D4. I'm assuming there is some sort of data and battery preservation going on that might need disabled? I do notice that when I drag the menu down from the top it shows my "4g" in Orange, not sure what that means?
3. Chrome browser doesnt seem "touch-friendly". I preferred using the android browser on my D4, and it had the touch menu that would pop up from the sides and allow me to easily move around the web. Chrome seems to browse the web much much bettter, but lacking those touch controls is annoying.
4. The camera app is lacking in options that my D4 had, is an aftermarket camera app my only option?
5. I had an app on my D4 that is apparently no longer available. Is it possible to save it from the D4 and then install it on the Mini?
6. FoxFi wifi no longer works, but it seems to be a known issue at this point.
Overall I'm very happy with the Droid Mini, great performance. I wish it had an SD slot, but otherwise quite happy!
Click to expand...
Click to collapse
See my "no root" links. Start with notification toggles for easy settings access. My signature button.

aviwdoowks said:
See my "no root" links. Start with notification toggles for easy settings access. My signature button.
Click to expand...
Click to collapse
Thanks!
Anybody else have some input please?

rubenk_ said:
Wasnt sure where to put this, seems like the Mini is usually included with things involving the Ultra.
So I finally bit the bullet and upgraded to the Droid Mini with Verizon. Thankfully the onscreen keyboard is far superior to my Droid 4.
It is currently unhacked, rooted, etc...All stock, aside from the handful of apps I installed for regular use.
1. my D4 I could freely turn the GPS/Location off/on with the power bar. Turning it back on just sent it right back into working operation. On my Mini it will not let me turn it off completely with the power bar, instead I am forced to go into settings and disable it. That then prompts warnings about how the world will blow up if my phone doesnt know my location. I am then prompted to agree to the notices every time I re-enable GPS/Location. Is there any way to make it behave "silently" like on my D4?
2. Sync and data seems "spotty". The Mini will show full 4g connection, but apps will not sync or update like they would on my D4. Gmail, G-Voice, Facebook, etc. I have to go in and manually update them or I will recieve notifications hours afterwards, and usually all at once. Even browsing Facebook via the browser is spotty. Is there some way to force these things to stay up to date like on my D4? Texting with g-voice and FB worked nearly instantly on the D4. I'm assuming there is some sort of data and battery preservation going on that might need disabled? I do notice that when I drag the menu down from the top it shows my "4g" in Orange, not sure what that means?
3. Chrome browser doesnt seem "touch-friendly". I preferred using the android browser on my D4, and it had the touch menu that would pop up from the sides and allow me to easily move around the web. Chrome seems to browse the web much much bettter, but lacking those touch controls is annoying.
4. The camera app is lacking in options that my D4 had, is an aftermarket camera app my only option?
5. I had an app on my D4 that is apparently no longer available. Is it possible to save it from the D4 and then install it on the Mini?
6. FoxFi wifi no longer works, but it seems to be a known issue at this point.
Overall I'm very happy with the Droid Mini, great performance. I wish it had an SD slot, but otherwise quite happy!
Click to expand...
Click to collapse
Since you requested additional input...
1. Without root, there is no "silent" method of doing this. If you were rooted - easy.
2. No idea. I've heard of a few people having such "sync" issues, and a full reset or a full SBF to stock solved it for them. Haven't had any sync issues personally.
3. Try another browser. Lots of people recommend "Boat browser"
4. AFAIK, no aftermarket camera will be one bit better than the stock camera app.
5. Try to download the APK from somewhere online and manually install it with ADB... Again, if you were rooted, you could easily backup the app from your old phone and restore with TiBu or similar.
6. Nothing you can do about this without root. You can use USB tethering - PDAnet or Clockworkmod tether will work for you.
Good Luck

samwathegreat said:
Since you requested additional input...
1. Without root, there is no "silent" method of doing this. If you were rooted - easy.
2. No idea. I've heard of a few people having such "sync" issues, and a full reset or a full SBF to stock solved it for them. Haven't had any sync issues personally.
3. Try another browser. Lots of people recommend "Boat browser"
4. AFAIK, no aftermarket camera will be one bit better than the stock camera app.
5. Try to download the APK from somewhere online and manually install it with ADB... Again, if you were rooted, you could easily backup the app from your old phone and restore with TiBu or similar.
6. Nothing you can do about this without root. You can use USB tethering - PDAnet or Clockworkmod tether will work for you.
Good Luck
Click to expand...
Click to collapse
Thank you very much!! I am not opposed to rooting the D4 or the Mini. I had my Moto Droid rooted and rommed, so its not completely new territory, i'm just out of the loop lately.
My data seems to have stabilized, think it was just a few reboots needed, but still not trusting it yet. I'll look into the other items you mentioned as well.

4. The google camera app is quite good, and has exposure controls, etc., that the stock Moto camera lacks. https://play.google.com/store/apps/details?id=com.google.android.GoogleCamera

doogald said:
4. The google camera app is quite good, and has exposure controls, etc., that the stock Moto camera lacks. https://play.google.com/store/apps/details?id=com.google.android.GoogleCamera
Click to expand...
Click to collapse
I completely agree I use this app on almost all my devices.

Wifi download's speed using Google services like backup and play store is slow

Hi. Thanks for this guide. I was able to install Android 9 though VPN. I was having a problem with background apps even with adaptative battery off. I solved it by entering at the list of apps/procces and disable the optimization on them. Everything now is ok except WiFi download speed using Google services. Download's speed in Google play store is 0.1 mb/a when normally is 6 mbps on android oreo(previous version). When I turn off the Phone and then i turn on, WhatsApp starts to do a security backup at its normal speed but after a few seconds the download speed is 0.1 mbps.But the strange thing is that on 4g mobile data it downloads normally. I don't know what to do. I cleared the caché and data from Google services and nothing. Is this a bug or something? My Phone is not rooted and the bootloader is locked.
Edit: I reset my phone to default settings. It still has Android 9. The first time did not make difference. The second time the download speed was back to normal but after an hour after the reset it went back to 0.1 mb/s.
Edit: If i turn on airplane mode the download speed is at full speed. Can someone explain me why is this happening pls? Thanks.
EDIT: Solved by turning off location: settings->security and location->location-> turn off by sliding the slider. I don't know if this options have these name. I have my phone in another language. I will update my post. This solution is not a real solution since you turn off location and some apps need it.

It's happening to me too. Will wait for update (on the post or SW).

Here it's happening only on 2.4Ghz network, using 5Ghz it's normal speed... Other devices are working fine on the same 2.4 hotspot, so definitely a bug.
Sent from my Mi A2 Lite using Tapatalk

Found out that if you disable locations services (bt also helps) the download speeds goes back to "normal".

senntennce said:
Found out that if you disable locations services (bt also helps) the download speeds goes back to "normal".
Click to expand...
Click to collapse
I already said that above this post at EDIT

evolveordie1 said:
I already said that above this post at EDIT
Click to expand...
Click to collapse
Sorry! Have not noticed that. There are some bugs that need to be fixed. Will either downgrade out wait a little more to see if a solution/update is provided.