Mobile Data Not Working (not completely) - Xiaomi Mi Mix 2 Questions & Answers

Hello, I have a rather strange problem with my phone.
After the Update which has just been released (MIUI Global 10.3.1.0 (ODEMIXM)
he began to behave in a strange way my mobile internet.
For example: Youtube, Facebook, Messenger, Google Maps work normally.
And all other applications no longer (even an application to Check system update)
I'm popping up a message: No connection.
I did different things: Reset Internet settings,
change network settings in options (* # * # 4636 # * # *)
and even a hard reset.
if you have questions Yes on Wi-Fi works normally.
Greetings!

Try factory reset first.

mine has similar problems after a call. Some Internet stuff still works, most don't, unless I disable and re-enable mobile internet from the dropdown menu. Did you find a solution, MrKaim?

Same problem in my phone too. The only app which is remain usable of the internet is the Chrome browser. Messeaging apps, navigation, ebay, etc... is always lost somehow the connection: even when I using the app: for example I browsing in the ebay app and after 10mins,its says sonetging got wrong and I can go on only when I turn wifi/adata off and on. And yes, ön my mi mix 2, the problem is still exist on wifi and mobil net too.

Mi Mix 2 Havoc OS 3.7 Mobile Internet
I am facing a similar issue.
Has anyone found a solution for this ?
I'm running a ROM : Havoc OS 3.7 Android 10
Also tried ROM : AICP and Lineage.. Same Issue!
I keep shuffling LTE / 3G it connects sometime but the connection is unstable.
Permanently displays an X in the mobile signal as if there is no mobile data connection.
Please share a solution if anyone has found one.

I realize only some data isn't working but you could save your apns-conf.xml from another setup where you have no data issues and everything works perfect (I always keep one handy) and delete your current apns-conf.xml in /system/etc and system/product/etc and paste the good one in your /system/etc and set permissions on new apns-conf.xml to 0644 using root explorer or whatever root file manager you use then go to settings on your device/networks and internet/mobile network/access point names/ and top right hit the three dot menu select reset to default and wait till you see LTE show in status bar and reboot. If it's an apn issue that will solve it.
My Mix 2 isn't hooked up anymore to a service but I do use it on wifi at home but the apns-conf.xml on stock rom/miui may be slightly different than they are on an AOSP custom rom. I know that's been the case for me on every device I've done this on so be sure if you do give this a shot that you use your miui apns-conf.xml on miui roms and AOSP apn xml on AOSP custom roms so that it will work.
I've been using this process when I have had any data issues at all on my last 3 devices and it's worked 100% every single time when after installing a custom rom I've had no data this works to get LTE going. Credit to spaceminer for this info on the apn delete and swap, data fix as he's who I first learned this from on another forum.

Related

GPRS only working upstream on XDAIIs

Got a weird problem. GPRS only seems to work upstream - not downstream. I can send MMS but not receive. I cannot download any web pages. checked SIM card in another XDA and GPRS works fine so it must be the phone, not the Mobile account.
Upgraded system ROM and Radio to latest:-
ROM : 1.40.00WWE
Radio : 1.12.00
Ext ROM : 1.31.920 WWE
Tried taking out all the add-on applications from extended ROM in case of conflict - but no luck.
Can't find any way to get GPRS download to work. System is logging on as it can pick up an IP address. Just that no data flows down to the device.
Any suggestions?
MMS has different settings to http. Go to you connections manager and copy the details from the other xda which you tested it on
Thanks - but tried that. Copies all settings exactly but still no luck. Loaded IP Dashboard so I can check network settings. Looks like I am getting an IP address from the network - I can ping the default gateway, but no data ever seems to make it through to the browser. That is what made me think it might be an application conflict - hence removing everything from the extended rom - but still no luck. All very strange.
nhawkins01 said:
Thanks - but tried that. Copies all settings exactly but still no luck. Loaded IP Dashboard so I can check network settings. Looks like I am getting an IP address from the network - I can ping the default gateway, but no data ever seems to make it through to the browser. That is what made me think it might be an application conflict - hence removing everything from the extended rom - but still no luck. All very strange.
Click to expand...
Click to collapse
Hi.
I am new in this forum.
I have the same problem as yours since the old ROM then 1.31 and now 1.40+1.12 Radio.
I can connected to the GPRS network but downloading of a page even a mobile site take forever.even download o2 connect also forever.
I have tried my sim card to a mini and all OK no problem but the it only happend on my 2s.
But if I use the CSD connection it seems OK. WHY?
Any workaround, need some expert help here. ???????
Thanks.

[SOLVED] CM7 | Wifi needs a minute to connect | started with nightlys about Jan.

Hi all,
having troubles with my Wifi. It needs a minute to connect and doesn't connect when screen is off eventhough settings are to always on.
I started asking in CM7 nightly thread about my problem but it's better to have a new thread for that.
So far I didn't find a solution.
I tried:
- replace tiwlan_drv.ko with new one by deleting old one
- compared wpa_supplicant, tiwlan.ini and other data in that folder without significant outcome
- tried old 2011.11.16-nightly where it still worked
Anyone got an idea what I have to copy from my old nightly where it still worked?
This is what happened:
measel said:
sorry, for bringing this up again, since I'm the only one having this issue but I just collected a few logs. maybe someone has a clue what is going on there:
Code:
2012-02-13-19-35-37_wifion.txt > when turning wifi on it needs more than a minute to connect
2012-02-13-19-37-37_wifiscan.txt > wifi instantly connects after starting 'wifi analyzer' app or open the wifi settings window
2012-02-13-19-45-25_wifiscreenoff.txt > when screen is of, wifi doesn't connect eventhough settings are to "always on"
/edit: ok i just tried to read the logs myself and I think you can't really see any reason for that behaviour... am i right that the possible settings I have to look for are in the 'tiwlan.ini'?
Maybe someone provide me a backup of his/her tiwlan.ini for comparison... (I don't have any idea what I'm doing but that doesn't mean I couldn't try. )
I added my tiwlan.ini as well
/edit: compared to tiwlan.ini: no differences. Must be something else.
Click to expand...
Click to collapse
measel said:
Could you please check your logs if it needs exactly a minute to connect? could be a proof that there is some setting involved.
Click to expand...
Click to collapse
measel said:
I just went back to an older version: 2011-11-16 and the problem was gone.
Thank you.
/edit: Ok might have bin the wrong folder... did it have to be /data/misc/wifi/? Argh it's hard when one knows nothing. :|
/edit2: I'm so sorry: I compared wrong files and folders (system and data). I come back here, when I really found something. *shame on me*
Click to expand...
Click to collapse
[] AL [] said:
I'd just copy the module tiwlan_drv.ko [in /system/lib/module] from that older nightly and replace it on the newer build first.
Don't forget to set its permissions afterwards..
You can do this with RootExplorer or with Terminal (from the app tray) by entering these 5 lines:
Code:
su
cd /system/lib/module
mount -o remount,rw /system/
chmod 644 tiwlan_drv.ko
chown 0.0 tiwlan_drv.ko
and reboot.
Click to expand...
Click to collapse
none of these solutions worked right?
I have wifi problems too. Wifi in CM7 is crap
No wifi problems here... I'm using my personal home wifi network most of the time, but other networks works well too.
Red lense German Vodafone Froyo based
CM7.2 Nightly 02102012
I have this issue if I configure my Router security to WPA. With open I can connect immediately
crakeron said:
none of these solutions worked right?
I have wifi problems too. Wifi in CM7 is crap
Click to expand...
Click to collapse
can't really say that. It's great in 111116-nightly so I just wanna figure out what I have to change to get the speed back!
Motorola Defy CM72120121, german Froyo base
I have this problem, too.
Nobody else?
Would be great if some devs could please look this up.
SOLUTION
Hello all,
first off: delete wpa_supplicant and everything is fine!
I gave up and did a factory reset/wipe data. After that it worked w/o problems.
> Now I will restore all my apps and check if it's still working afterwards. > still working
> restore wifi access points > NOT WORKING ANYMORE!
> with shame I delete wpa_supplicant > WORKS AGAIN!
I'm so ashamed. :/ Should have done that like months ago.
I go back to my backup and try it there. > deleting the wpa_supplicant worked!!!!
My Wifi has a problem with WRT54G Wireless Router, with Froyo Stock ROM and CM7.1 RC1.5-jordan.
WIFI connect, signal is good but connection is very slow.
On notebooks, the connection is faster with this same router.
In another Wireless routers connection is normal from Defy. The problem is only between Defy x Linksys WRT54G.
I have set Defy and Router to work only in G mode, but the problem persist.
With the same configurations the problem don´t occour with another routers from D-link, Cisco or other.
Anyone know how can I solve it?
Tnks.

[Q] Wifi Not Working On Cyanogenmod 11 - T989

I was able to install CM11. Flashed cm11 on 12/7 and everything has been working great. I was able to update everything. On next morning, wifi signal was there but no access to internet. Wifi is on but it picks up no wifi signals. If I turn on/ off wifi doesn't find anything else. And receive WPS has failed error... if I click in refresh.
I have already daily upgrade nightly builds to up to date build (20131217), but success. same issue. Any idea?
If I do a full wipe and then restore a backup it work for a day, then stops again.
I have the same problem. I dropped the phone on the wooden floor, and thought the wifi just broke, but now I'm confident it's because of bugs in cm11
Considering returning to cm10.3
LE:
Installed BeanStalk with no data/cache wipe and WiFi is still not working.
gust989 said:
I was able to install CM11. Flashed cm11 on 12/7 and everything has been working great. I was able to update everything. On next morning, wifi signal was there but no access to internet. Wifi is on but it picks up no wifi signals. If I turn on/ off wifi doesn't find anything else. And receive WPS has failed error... if I click in refresh.
I have already daily upgrade nightly builds to up to date build (20131217), but success. same issue. Any idea?
If I do a full wipe and then restore a backup it work for a day, then stops again.
Click to expand...
Click to collapse
I updated mine to 1/14/2014 CM11 Nightly and still no Wifi. Anyone have the same experience?
I had the same problem. You can try wiping all data, reinstalling ROM and gapps. Everything but the camcorder works!
Sent from my SAMSUNG-SGH-T989 using xda app-developers app
it solved !!!! ...
Hi to all
I had this problem and i could fix it.
afret install CM 11, go to this address : settings/wi-fi/advanced/wi-fi region code
and change it to fix. for me it works on Europe.
I hope it be useful.
If it works for you, give me Thanks ...
Will try as we speak. Thanks for sharing.
---------- Post added at 08:55 PM ---------- Previous post was at 08:13 PM ----------
I just upgraded to cm 11 build .17 and Wifi just doesnt turn on.
It says turning on... and just hangs.
I've set region to Europe to no avail..
I found a solution. Download SQlite debugger from Play Store. Open the app, then open Setting Storage, then setttings.db, then Global, then scroll down to wifi_display_on and edit the value, change it to 0. Reboot and then you should have wifi working again.
value
adrscu said:
I found a solution. Download SQlite debugger from Play Store. Open the app, then open Setting Storage, then setttings.db, then Global, then scroll down to wifi_display_on and edit the value, change it to 0. Reboot and then you should have wifi working again.
Click to expand...
Click to collapse
Thanks, that worked great. but the setting reverted back to "1" on its own , i changed it back to "0" working again but any idea how to keep it from reverting back?
The value only reverted the one time, hasn't been an issue again.
Samsung Galaxy S Advance - Cyanogenmod 11 wifi connection problem
adrscu said:
I found a solution. Download SQlite debugger from Play Store. Open the app, then open Setting Storage, then setttings.db, then Global, then scroll down to wifi_display_on and edit the value, change it to 0. Reboot and then you should have wifi working again.
Click to expand...
Click to collapse
Downloaded SQlite debugger. Cannot find Setting Storage. Please help.
adrscu said:
I found a solution. Download SQlite debugger from Play Store. Open the app, then open Setting Storage, then setttings.db, then Global, then scroll down to wifi_display_on and edit the value, change it to 1. Reboot and then you should have wifi working again.
Click to expand...
Click to collapse
This totally worked for me. But it stops, and the problem is back again. Checking the settings.db shows it has returned to 0. (wtf!)
Not sure what to do at this point. It's nice to know it's not hardware.
thanks!
i had the same problem. this guide solved my problem. thanks.
Fixed my network problem by removing ad-hoc network
Hey,
I had a problem when I tried to connect to an ad-hoc network I'd setup. The network settings screen would freeze up on me and then..... nothing. I checked the database settings by adb'ing onto my phone (a rooted oppo find 5 by the way). I checked the values of the settings database as described by others. That didn't work so then went to the file containing connection details of known wifi networks
Code:
sudo ./adb shell
[email protected]:/ $ su
1|[email protected]:/ # cd /data/misc/
[email protected]:/data/misc/wifi # ll
First I start a shell on my phone (sudo ./adb shell), then I change from a regular user into the superuser (su) then I go to the directory containing the wifi connection info.
There I opened the file wpa_supplicant.conf and removed the ad-hoc connection that caused my problems. I've also read about people simply removing the file. Downside of that is that you will loose your painstakingly acquired history of known passwords (but I guess in the end that is still better then not having a wifi connection at all....)
Hope this helps somebody
Cheers!
Hi
I have installed cyanogenmod 12 beta 10 on my galaxy s2 i9100
there is no country code option in wifi advance setting.
how can I get my wifi worked?
Rydermuff said:
Thanks, that worked great. but the setting reverted back to "1" on its own , i changed it back to "0" working again but any idea how to keep it from reverting back?
The value only reverted the one time, hasn't been an issue again.
Click to expand...
Click to collapse
May I ask for a absolute path of "settngs.db" file, please? By the way, have you fixed the issue with reverting?
Thank you.
SAHRSOFT said:
Hi to all
I had this problem and i could fix it.
afret install CM 11, go to this address : settings/wi-fi/advanced/wi-fi region code
and change it to fix. for me it works on Europe.
I hope it be useful.
If it works for you, give me Thanks ...
Click to expand...
Click to collapse
Hi Sahrsoft, where are these options on CM 12 (lollipop)? Thanks!!
Hi guys,
Just wanted to tell you that setting wifi_display_on to 0 didn't work for me. Full reset did the trick on my GS4 GT-i9505
adrscu said:
I found a solution. Download SQlite debugger from Play Store. Open the app, then open Setting Storage, then setttings.db, then Global, then scroll down to wifi_display_on and edit the value, change it to 0. Reboot and then you should have wifi working again.
Click to expand...
Click to collapse
Thanks so much dude! I was so close to resetting my phone and this worked perfectly! To those of you who got lost on this I'll try to describe it better... Download SQlite debugger from Play Store or on your PC then transfer the apk to your phone and install Open the app, then press 'App' and scroll down to 'Setting Storage', then 'setttings.db', then 'global', then 'name', now scroll down to 'wifi_display_on' and edit the value to 0, make sure you commit this change by pressing the arrow icon in the top right and accepting. Now reboot and turn on your WIFI!
SAHRSOFT said:
Hi to all
I had this problem and i could fix it.
afret install CM 11, go to this address : settings/wi-fi/advanced/wi-fi region code
and change it to fix. for me it works on Europe.
I hope it be useful.
If it works for you, give me Thanks ...
Click to expand...
Click to collapse
thank you !

Fix for VS986 dropping down from 4G LTE to 3G/H+

I've been working on a fix since a long time now. If you are in SD community then you prolly know me. Anyway I was able to fix this on two of my phones and it's now working fine. I tested for 12 hours now. I'll also tell you in the end what problems I'm seeing. I'm also working on a fix for that.
I noticed that a service is started when the fallback happens but if I kill that service the network also dies. But if you follow the below method it safely starts a new service which kills the one that's responsible for killing the 4G/LTE
1. Upgrade your phone to 13B firmware
2. Root 13B
3. Now download Shortcut Master lite app from play store.
4. Now add these shortcuts to your favorites in the "Shortcut Master lite app". You can search for "LTE" and click on search button
LTEBandSelection
LTETestMain
LTE System Selection
CDMAPreference
5. Now click on "LTEBandSelection" and enable all the bands
6. Save and reboot
7. You now need to enable your data and turn off your wifi. Make sure your phone is in Global mode (in settings >> Mobile networks >> System select)
8. After your phone is rebooted open "Shortcut Master lite" app.
9. Now tap on LTETestMain
10. Select Click on CDMA preference.
Now choose Band preference and select "any"
P_REV_Preference ---> "MOB_P_REV 3
This is important.. EVDO Revision --> Rev A
11. "LTE Connect w/o IMS PDN" must be checked
12. Now go back to your main menu in shortcut master lit app
13. This step is very important. Changing the timeout is important. Tap on LTE System Selection
Except "Scan duration" add a couple zeros to all the other timers. For eg: T_mpsr timer (Min) is 200
The fallback timer will reset itself after reboot. But don't worry the configuration is already updated with the new value. For some reasons the shortcut master lite app is not picking it up.
14. Now finally click on "CDMA preference" in the main menu and make sure it has the value you set in Step 10
At step 10 or 13 your network should go away and your phone should complain about "no network". That's fine. just ignore the message.
Now finally reboot your phone. That's it. You should now have 4G LTE and it won't fallback to 3G or H+
The only problem is when I'm on a call my 4G LTE is dropped to 3G/H+. But after I hang up it goes back to 4G LTE after 12 seconds. I don't know if it's an expected behavior. But I'm trying to see if there is a fix for that.
I tested this with Tmobile. Make sure your APN settings are correct.
Thanks @motorhead_biker., you rock!!!
I am on rooted 11a, flashing stock back and then will go to 13b to try this out. Was waiting for this.....
Isn't this thread a duplicate of http://forum.xda-developers.com/verizon-g4/general/guide-fix-vs986-dropping-to-3g-h-4g-lte-t3272434? Can they be consolidated?
Thread closed as there is already a copy in General and that is where it belongs.
Forum moderator,
matt4321

Disable EAP-SIM auto connection

Hi everyone,
I am stuck on a problem for some time now and still haven't figure out how to resolve it.
I would like to prevent my phone to automatically connect to a EAP-SIM Wifi network. I have enough data and there is a good network where I live. When I walk it switches to the wifi network near me and this is actually worse than the data network.
When I try to look the internet for this, all I found is people trying to enable this feature but nothing on how to unable it (or prevent it to connect to this specific network [FreeWifi_secure, a French mobile network provider]).
What I tried :
Remove ("Forget') the network => It reappear and reconnect every time
Disable my wifi when I'm outside => work, but then, I forgot to activate it back once home. Not the solution I'm looking for
Modify wpa_supplicant.conf (/data/misc/wifi/) and add "disable=1" to the network => the file is always rewritten by the system
Modify wpa_supplicant.conf (/data/misc/wifi/) with update_config=0 => Does not work, the file is always rewritten by the system
Modify wpa_supplicant.conf (/data/misc/wifi/) by commenting "#update_config=1" => Does not work, the file is always rewritten by the system
Change owner of wpa_supplicant.conf (/data/misc/wifi/) from "wifi.wifi" to "system.wifi" => Switched back to "wifi.wifi"
Remove the network from the wpa_supplicant.conf file => Comes back and connect to the wifi
My phone is a rooted Honor 5X (KIW-L21) with the stock rom (build KIW-L21C432B350). It is an Android 6.0.1.
Thank you for your help !

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