I have an issue with every build I've tried of MIUI 8 (Stable versions), but not with the developer versions of MIUI 9.
The phone will not connect to UMTS/3G networks with either sim. LTE works fine, and there's no GSM where I live so I can't test that.
It will connect for a moment when first booting up the phone, then immediately disconnect and stay disconnected. It can't find 3G networks when searching either.
Again, this doesn't happen on MIUI 9 builds, but I figure this big of a bug, they would never release it as stable. Can anyone else let me know if they've had this problem?
Hello, I`m having same issue, here in this way. In town there are many repeaters. Here is no problem, in germany many 4G-Networks are working in band 20 (800 mhz). In areas, where no 4G/lte is possible, the mi mix2 (china stable miui8 and china dev miui9) the mix2 can not connect to 3G/UMTS. A smartphone Redmi note 4 with this SIMCard connects to 3G/UMTS and gets connection data to HSDPA+. The mi mix icon diasappears and there is a "emergency" Icon. Then the mi mix2 connect only to GSM and after 1-2 minutes get Data to EDGE. But at this place it is possible to connect to 3G. I rebooted the device many times, changes sim to other slot. Tried China dev and stable. Last test with XIAOMI.EU and EPICROM for MIX2 are sad. Same issue
Many MIX2-User have this effect. I have this effect on Sim-Cards from provider Telefonica/O2. I have tried 3 Sim-cards from provider O2. No 3G - Connect.
In germanys-forums the is a hint to define "force 3G-Connects". Some user writes, that they do not have this effect with this definition.
Does have XIAOMI a 3G-Bug with new MIMIX2??
holger1308 said:
Hello, I`m having same issue, here in this way. In town there are many repeaters. Here is no problem, in germany many 4G-Networks are working in band 20 (800 mhz). In areas, where no 4G/lte is possible, the mi mix2 (china stable miui8 and china dev miui9) the mix2 can not connect to 3G/UMTS. A smartphone Redmi note 4 with this SIMCard connects to 3G/UMTS and gets connection data to HSDPA+. The mi mix icon diasappears and there is a "emergency" Icon. Then the mi mix2 connect only to GSM and after 1-2 minutes get Data to EDGE. But at this place it is possible to connect to 3G. I rebooted the device many times, changes sim to other slot. Tried China dev and stable. Last test with XIAOMI.EU and EPICROM for MIX2 are sad. Same issue
Many MIX2-User have this effect. I have this effect on Sim-Cards from provider Telefonica/O2. I have tried 3 Sim-cards from provider O2. No 3G - Connect.
In germanys-forums the is a hint to define "force 3G-Connects". Some user writes, that they do not have this effect with this definition.
Does have XIAOMI a 3G-Bug with new MIMIX2??
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You can install the Miui9 radio and it fixes it.
duraaraa said:
You can install the Miui9 radio and it fixes it.
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Which Radio Version and wehre to get? I am on miui9 beta and having same issue with this o2 card... It is very anoying.
el3c said:
Which Radio Version and wehre to get? I am on miui9 beta and having same issue with this o2 card... It is very anoying.
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If you're on MIUI 9 beta, you already have the radio I'm talking about.
duraaraa said:
If you're on MIUI 9 beta, you already have the radio I'm talking about.
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okay, it doenst fixed that
The default Setting for this SIM is: LTE/TD-SCDMA/WCDMA... this is almost wrong, because we havent TD-SCDMA in Germany, i ve switched to LTE/UMTS RPL ...this seems to work better with my o2 card.
Sometimes the connection breaks down from LTE or LTE+ to H+ ...but after the break down, i have no data connection. If i activate flight mode and re enable data, i also get H+ but for now with data connecting. This is very frustrating
Also that my Settings to LTE/UMTS are removed after a reboot or i switch to the second sim. Any suggestions to fix it permanent to LTE/UMTS ?
Did anyone tried MI MIX 2 Global - Version?´ Bug exists still there?
I am on 9.1
I set it on LTE/TD-SCDMA/GSM. I live in Germany too and have a O2 card.
GSM is slower than UMTS cause it's older. But it works without problems.
Now I trying with LTE/TD-SCDMA/UMTS. I have to say that I have some problems too.
Targosch said:
Now I trying with LTE/TD-SCDMA/UMTS. I have to say that I have some problems too.
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we dont have TD-SCDMA in Germany so, this setting is false... TD-SCDMA is a chinese or asian network standard
el3c said:
we dont have TD-SCDMA in Germany so, this setting is false... TD-SCDMA is a chinese or asian network standard
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Should I take LTE/UMTS?
Targosch said:
Should I take LTE/UMTS?
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yep, this seems to works best and also breaks down to gsm if there is no other network available... but...
sim 1 + data card : o2
sim 2 as voice card: D1
if i make a call with sim 1 / D1 my first sim as data sim loose the data connection, even it is connected to a lte network...strange thing today i had a conf call over sim2 for about 4 hours, while this time i didnt recieve any mail or whatsapp.
but if i set sim 2 / D1 as data card and make a voice call, this card wont loose data....strange, maybe a o2 issue?
edit: made a test with D1 as data and if make a call with the o2 card, also d1 loose data instant
I have a new (2.nd) MI MIX 2. And: I have the same Problem. O2 is switching vom GSM/EDGE to UMTS an gets no Connect. Then only "EMRGENCY CALLs". And then GSM again. o2 is provider. roaming is on.
With second SIM (Vodafone) there is no problem. Is there a fix for that problem? One member wrote there is a new "radio". Where to find it?
Same SIM (o2) in a REDMI NOTE 4 (LTE Band 20 800 MHZ) is "ok". It is an MI MIX 2 - Problem!
I have the MIUI 9 Global.
MI MIX2 with O2 and no LTE and no 3G/UMTS??? Joke?
holger1308 said:
I have a new (2.nd) MI MIX 2. And: I have the same Problem. O2 is switching vom GSM/EDGE to UMTS an gets no Connect. Then only "EMRGENCY CALLs". And then GSM again. o2 is provider. roaming is on.
With second SIM (Vodafone) there is no problem. Is there a fix for that problem? One member wrote there is a new "radio". Where to find it?
Same SIM (o2) in a REDMI NOTE 4 (LTE Band 20 800 MHZ) is "ok". It is an MI MIX 2 - Problem!
I have the MIUI 9 Global.
MI MIX2 with O2 and no LTE and no 3G/UMTS??? Joke?
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change network to LTE/UMTS PRL ...then it should work better PRL = prefered roaming list; go to settings -> about phone -> tap several times on the info about internal storage -> the network app will appear, now you can change network settings... until next boot, then you have to set it again
maybe mix 2 has a problem with national roaming?! cause o2 uses national roaming -> their own network and the network from e-plus
Yes, the MIX 2 does have issues with switching to anything other than LTE. Even when it says it switched to H or H+ there is actually no reception at all and it takes a few minutes for it to recover. Really annoying, hopefully the engineers fix this issue as soon as possible. Pretty inexcusable bug for such a device.
Hello, Switching to " LTE/UMTS PRL" has the effect, only UMTS/3G-Connections are possible. No LTE/4G. Provider: German O2.
XIAOMI might have to fix this bug.
Q: Has anyone took a Message to [email protected] ?? http://en.miui.com/forum.php?mod=bugfeedback&fid=5&page=1
holger1308 said:
Hello, Switching to " LTE/UMTS PRL" has the effect, only UMTS/3G-Connections are possible. No LTE/4G. Provider: German O2.
XIAOMI might have to fix this bug.
Q: Has anyone took a Message to [email protected] ?? http://en.miui.com/forum.php?mod=bugfeedback&fid=5&page=1
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LTE/UMTS PRL fixed that for me totaly ... i dont had any issues since them! I am also getting LTE and LTE-A with o2 and i am travelling a lot due to my job in germany.
i think its also problem with o2 and national roaming. if you search for this problem in google, you will find the same issue reports from other devices within in the o2 network. I did never had the same problems with my other D1 card in the same device.
LTE/UMTS does not work for me.
Since yesterday I use LTE/TD-SCDMA/UMTS and it works fine.
Provider: O2 Germany
It looks like 3G/HSPA doesn't work when roaming (possibly local roaming too). LTE works fine. In the UK I can get internet all the time regardless of connection type. I travelled abroad and only LTE worked using my UK SIM. This also happens on AOSP based ROMs since I'm using Resurrection Remix and still experienced the issue.
Mr_Bartek said:
It looks like 3G/HSPA doesn't work when roaming (possibly local roaming too). LTE works fine. In the UK I can get internet all the time regardless of connection type. I travelled abroad and only LTE worked using my UK SIM. This also happens on AOSP based ROMs since I'm using Resurrection Remix and still experienced the issue.
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Yes, this is clearly a firmware-level issue. They need to fix their modem.
Hi, i have a problem with my mi6 and network provider T mobile from Croatia. When i hit call button on 3g network i have a drop of signal and cant make a call or recive one. On 2g network everthing works fine. I tried with other network providers and mi6 works like a charm. Something is beetwin mi6 and t mobile provider. I tried to change sim, try all roms (china, global, eu rom) and allways the same.
Today i tried to put sim card in new mi mix 2 and phone is working with my sim and can make a call on 3g.
Do you have any solution?
Can i install mi mix2 rom on mi 6, or modem driver?
.... Thanks for answer....
Same issue.
Calls only works ok when in 2g Mode (on 3g always the call drops).
Any solution?
me too. i used the mi5 and mi6 and same problem. i use 2 sim cards. when the first sim is in 2g or 4g never had problems. when i put sim card in 3g, i have problems about once a day with missed calls , no network (ccant make phone calls or receive calls).
i changed the sim card changed roms, and still nothing. its drivingg me crazy. i like xiaomi but these are serious problems.
im in global version miui 9. I live in europe. it happened wiith miui 8 also in xiaomi mi5.
Anyone have suggestions how to resolve this please?
still having this problem. any advice?
still unsolved
problem solved selecting gsm only in second sim with this command *#*#4636#*#*
Hi guys just got redmi note 8 pro and almost every time I go out of reach of wifi my mobile data doesn't work. It happens also if I manually tuen off wifi. I have the H+ icon like it is connected but I don't have data connection. The issue is resolved if I go in and out of airplane mode then I have data connection again. If I just turn off and on data connection in the quick settings it does nothing. APN settings are set and working ok.
MIUI global 11.0.3.
did u find any solution.....
if you are using any 3rd party VPN or using custom DNS then please disable them and try again.
I had the same issue. I emailed Xiaomi's support and also posted it in the Mi community forum. Followed everything (except factory resetting the phone) but nothing was working.
Finally, I was able to find a solution that has fixed this issue for me (I've spent almost a day and haven't experienced it yet).
I was using a single SIM card on my phone. My SIM card only supported 3G network. After trying all the solutions, I grabbed another SIM card (of another network provider) and put it in the second SIM slot. This new SIM card also supports 4G LTE.
At this moment, my phone has 2 SIM cards. One supports only 3G and the other also supports 4G LTE. Though my default mobile data is still set to my original SIM card (3G).
After using two sims simultaneously, I've not experienced this issue again.
So I assume that Redmi note 8 Pro has a bug that doesn't allow mobile data to work properly if there is a single 3G SIM card present in the phone.
I have the same issue.
Works for sometime then suddenly no internet even when it's showing 4G+ sign. I have to turn off the data then on again to get it working which is annoying.
Same issue even with dual sim installed.
I use one sim card for calls and another for data on my mi10t pro. The problem is that the data connection disappearing while I'm on call. I've tried mani things- changed the places of the sim cards, activated dual 4G, and VoLte on both sims, tried to change different settings, but can't fix that... Is there any solution?
agama721 said:
I use one sim card for calls and another for data on my mi10t pro. The problem is that the data connection disappearing while I'm on call. I've tried mani things- changed the places of the sim cards, activated dual 4G, and VoLte on both sims, tried to change different settings, but can't fix that... Is there any solution?
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This only works on CN ROM which is the China miui this happened to me on the Poco f2 pro on global no data when on a call when u have 2 Sims but on China miui the data works
Ismail.A said:
This only works on CN ROM which is the China miui this happened to me on the Poco f2 pro on global no data when on a call when u have 2 Sims but on China miui the data works
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It's strange... Is there any solution to fix it? Like a custom rom or something? And is it the same with the global roms of all mi phones?
agama721 said:
It's strange... Is there any solution to fix it? Like a custom rom or something? And is it the same with the global roms of all mi phones?
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Click to collapse
I tried most of the custom ROMs only one that works is CN ROM
I see... Really strange, if the device supports this option...
I'm on Lebara mobile which uses Vodafone. I'm only getting 4G, sporadically get H+ but not always. I have set my preferred network to LTE.
Greetings,
I have got a Pixel 6P device from the UK Google Store.
Since then I had to move to Hungary and started using the device with local carrier T-mobile (Telekom Hungary) and using physical and esim also.
Both of the SIM cards has connectivity issues. The signal suddenly drops to zero, and I only get a carrier notification SMS for a missed call.
My network signal usually really bad. I also tried using 5G near a 5G tower but it just won't connect.
I tried to connect to VoLTE or Vowifi but both of them is disabled on the phone. However the carrier has enabled it for both SIM card and I have got the confirmation messages of it.
I tired factory reset and SIM card replecament with no luck, problem is still there. Carrier just said that that everything is fine at their side...
I have waited for the december update, and I did the update with ADB sideload.
Now the connectivity problem is still there, and I have got another big problem.
When I get a call, and pick it up I don't hear the caller and caller can't hear me neither.
If I put the phone to loud speaker and back to normal then I get voice in both sides, tried phone restart but it won't solve the issue.
Has anyone encouterd with this problems and managed to solve it?
By the way after the a December Update my battery life has been significantly better.
Thanks
Hi,
I´m experiencing the same issue on P6 (non-Pro). How did you sort that out?
I remember reading on here that somoen in uk was on three network which is certified with Google but if you use the pixel 6 and pixel 6 pro on smarty which uses three won't work on pixel 6 or 6 pro
https://support.google.com/pixelphone/thread/146634713/would-it-be-possible-to-have-5g-please?hl=en this was link that's simlar I did check t mobile to see if they sold the pixel they seem to sell it sorry I didn't or couldn't help