LTE not working properly on AEX 5.7 - Lenovo ZUK Z2 (Plus) Questions & Answers

i flashed AEX 5.7 on my Lenovo ZUK Z2 plus but the LTE network is very weak/non existing sometimes.
Most often after enabling Mobile data, when i run a Speedtest app it shows me error.
But after 3-4 min Speedtest starts running.
Is this normal for this to happen i am tired of not able to open webpages and not loading Instagram also Youtube app does not work.

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Mobile data(4G,3G) issue on Z1 Compact

I have got this weird problem on my Z1 compact that sometime you cannot open playstore, cannot surf on web on chrome and certain app never work and give message of no date connection while at the same time whatsapp, line and certain voice calling app over the internet work fine and also when i tether mobile data with pc ..everything work and internet is absolutely fine.. I have tried many stock 4.4.2 and 4.4.4 ROMS but still same problem...I have tried to change internet setting from lte/4g to 3g but still having have same issue.
When i use simcard in moto G everything run great and fast with no data issue..can anyone tell me how to fix it or i should try aosp ROMs?

[Q] TMO M9 Weird Wifi behavior

So this is weird. My wife and I just picked up two brand new M9's from T-Mobile this afternoon.
We're able to connect to the wifi with our new phones without any trouble, but the wifi is sporadically slow. SpeedTest shows download speeds around 14.21 Mbps from the phone, but 64Mbps from my laptop for SpeedTest. Google services seem to go really slow:
Google Play application icons are slow to load
Google Now's initial setup hangs at a blue circle loading with gray background
Google Music takes a good 5 minutes of buffering to start playing a song
Browsing to google.com periodically times out in Chrome: "Google CHrome could not load the webpage because www.google.com took too long to respond."
I'm also noticing that despite connecting to wifi, there's still the 4G icon in the status bar - with my old M7, if you connected to Wifi, the 4G/2G indicator disappeared. Is this behavior normal for Sense 7?
EDIT: I've tried the following, and things seem like they may be a little better. I'm not sure which is the potential fix though:
Disable Power saver mode
Disable WiFi optimization
I grabbed a spare WiFi AP that is dual band, 5GHz seemed to go faster, but I'm not sure if that's because it's inherently faster than 2.4GHz
EDIT EDIT: Just kidding, I'm still having issues.
I don't know about the wifi going slow but the 4G icon will stay even if you're connected to wifi. I haven't had any problems with mine going slow on wifi and I have the T-Mobile version also
The weird part is that slowness is too broad... it almost seems like certain services are having issues. I could get to google on Wi-Fi and twitter would update, but Gmail, facebook, instagram, and hangouts wouldn't work.
Disconnecting from Wifi (and reverting to cellular data) "fixes" the issue.
pezhore said:
The weird part is that slowness is too broad... it almost seems like certain services are having issues. I could get to google on Wi-Fi and twitter would update, but Gmail, facebook, instagram, and hangouts wouldn't work.
Disconnecting from Wifi (and reverting to cellular data) "fixes" the issue.
Click to expand...
Click to collapse
Check to make sure in the advanced wifi settings that Wi-Fi frequency band is set to either auto or 5g. Usually the wifi will have the same name but the 5g will simply say "-5g" after the name. If you are connected to the 2.4g you will be slower. Here is a screenshot of my speedtests on the same network but different frequency.
5g= 209.53 down and 21.01 up
2.4g= 44.77 down and 21.13 up
both on my wifi just different frequency...

Slow cellular download speed's

i am getting slow cellular speeds around 5mbits when i am downloading from playstore, browsing facebook, 9gag etc. but when i run a speedtest i get over 30mbits.
is there something limiting the speeds because the phone can easily get to 100mbits but will still download at 5mbits from the playstore
oh and this happened on oos rom's and cm14.1 rom's. both nougat and marshmallow
nothing?

Mobile Data Problems

Hi,
i have massive problems with mobile data on my Mi Max 128GB.
Even if i have LTE or HSDPA+ very often the internet connection is not responsive. When i do a speedtest i get 30-60 MBit, so speed and network isn't the problem. But when i then open a webpage, facebook or whatever there is no response sometimes. And when i look at the statusbar (where i turned on to show the currect data speed) i see something like 2-5 Kbit/s...
Baseband is A.2.1.c4-00013-1212_1915_a95f291 and i'm on 8.2.2.0 MIUI by xiaomi.eu (but this happens with other roms too).
Ideas anyone?
Thanks

Slow 4G Speeds, connectivity issues. Modem, Baseband

Basically the Redmi note 5 Pro and Ai are really slow for internet speeds, unstable I compared it to Samsung S7. This post talks about the same problem.
https://forum.xda-developers.com/redmi-note-5-pro/how-to/low-signal-poor-4g-speeds-t3777925
It was so slow i was going to sell this.
When using a custom roms, the LTE connection would turn off even tho it was turned on, you click it and it says turn off LTE connection even tho it's already stopped working, no LTE icon present. Then after turning it off and turning it back on it works again, till it randomly disconnects itself again. Restarting the phone while LTE was working would normally mean it had the same problem when phone started up, LTE icon missing internet not working you click on it and it says turn it off, it's on but not working.
MIUI didn't seem to disconnect those issues above still hopelessly slow speeds however.
I found someone else who suggested flashing a modem to fix it, however this didn't work for me as there's a massive list modems i tried and didn't fix it below. Had to use aeroplane mode after each modem flash and turn it off and wait a bit before turning on LTE to get a connection.
What did fix it was this post i came across from another person.
As far as I see it's issue with MIUI9. What is my conclusion so far is, with MIUI9, there is an issue with network switching like from 4g to 2g or 3g and the phone gets briefly disconnected from network . This is more often when you use data than voice.
I use two sim cards so I've currently got my data sim set to LTE only and my calling sim is just on WCDMA as soon as i did that my download speeds match my S7 just as fast which wasn't even close to been possible before i did this. So i'm convinced that the persons post is correct and it keeps disconnecting from 4G to try and connect to 3G and results in an unstable connection. That and i ran speedtests against all those modems listed and couldn't get these speeds.
It might be possible to set my calling sim to WCDMA/LTE and data to only LTE not tested so far, so its working but if i lose LTE connection it would normally drop to WCDMA so with LTE only that could be problematic. Doesn't seem to disconnect anymore and maintains the LTE during phone restarting.
This is a list of all the modem, baseband files i tried.
These where from China rom.
9.5.16.0
8.8.9
8.8.3
8.6.28
8.6.21
8.6.16
The rest were Global, Stable and Beta
10.0.1.0
9.6.4.0
9.6.3.0
9.5.17
9.5.14.0
9.5.13.0
9.5.6.0
9.2.7.0
8.9.20
8.9.13
8.9.6
8.8.30
8.8.23
8.8.16
8.8.2
8.7.26
8.7.12
8.7.5
I just got the Mi 8 Lite yesterday. The speeds showing for mobile data on the phone are really slow... and downloads from the Play Store take forever (a few seconds for each MB). Trying to download the Android 9.0 update was painfully slow. Eventually I resorted to putting the SIM back into my old device and using that as a hotspot to update my phone via "wi-fi".
I have now placed the SIM back into the Mi 8 Lite and the mobile speeds are still slow. I'm really confused, however, because when I use the Mi 8 Lite as a hotspot to share the data with my old device, the downloads on that phone are quick.
So it seems that the Mi 8 Lite is just struggling to make internal use of the data speed that it is actually receiving from my network... it still transfers the full speed to other devices via the hotspot.
Any suggestions?

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