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??
Click to expand...
Click to collapse
You can install the Miui9 radio and it fixes it.
duraaraa said:
You can install the Miui9 radio and it fixes it.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
Should I take LTE/UMTS?
Targosch said:
Should I take LTE/UMTS?
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
Yes, this is clearly a firmware-level issue. They need to fix their modem.
Related
Hello,
thanks to buzzdev's great tool (you are the greatest!) my MDA Pro German now accepts all SIM cards. However, with every SIM card I tried (Eplus/BASE, o2 with UMTS enabled) I never get access to UMTS, even in the center of my town. With the T-Mobile SIM however, UMTS works immediately. Has anybody else experienced this problem? I also tried to hard reset and skip the customization.
Greetings from Bonn, Germany
Andreas
i also have bought a german mda pro and unlocked it. i am using it in austria and umts works correctly.
Re: MDA Pro German unlocked; UMTS still only works with T-Mo
stupiddog said:
Hello,
thanks to buzzdev's great tool (you are the greatest!) my MDA Pro German now accepts all SIM cards. However, with every SIM card I tried (Eplus/BASE, o2 with UMTS enabled) I never get access to UMTS, even in the center of my town. With the T-Mobile SIM however, UMTS works immediately. Has anybody else experienced this problem? I also tried to hard reset and skip the customization.
Greetings from Bonn, Germany
Andreas
Click to expand...
Click to collapse
Maybe you should check if the other providers:
- supports UMTS
- your connection settings are right
- you need a special account to use UMTS
- UMTS is available in your area with that provider
If T-Mobile enabes UMTS for you doesn't mean all providers do.
Re: MDA Pro German unlocked; UMTS still only works with T-Mo
vondutch said:
Maybe you should check if the other providers:
- supports UMTS
- your connection settings are right
- you need a special account to use UMTS
- UMTS is available in your area with that provider.
Click to expand...
Click to collapse
Yes, I ordered the UMTS option which caused all my SIM-Cards to be replaced by USIMs. The town I live in is medium-sized (300,000 inhabitants), and I checked about eight places - no success. (Typically, UMTS is available in every German town which has about 50,000 inhabitants or more)
What happenes is quite weird: When I switch the phone on, enter my PIN and connect to the network, the UMTS Symbol ("U") appears for about one or two seconds. Then it disappears, the connection gets lost, and the phone reconnects by GSM. It seems that the phone (or the provider?) throws me out just after a successfull UMTS connect.
I also verified that the GPRS/3G connection is set up correctly (APN surfo2, no username and password).
Greetings,
Andreas
you probably already have checked the radio band settings, but its worth a try. have you enabled umts band in telefon - einstellungen?
loopback said:
you probably already have checked the radio band settings, but its worth a try. have you enabled umts band in telefon - einstellungen?
Click to expand...
Click to collapse
Yes, UMTS is not disabled; I also tried "WCDMA only", but then no connection can be established.
hmmm, have you tried a hardreset and/or a new/different rom?
loopback said:
hmmm, have you tried a hardreset and/or a new/different rom?
Click to expand...
Click to collapse
Yes, I thought that maybe there was some stupid locking in the T-Mobile GER ROM, so I used the latest Qtek German ROM, I also tried the O2 XDA Exec Launch ROM (UK), but nothing changed.
Re: MDA Pro German unlocked; UMTS still only works with T-Mo
stupiddog said:
I also verified that the GPRS/3G connection is set up correctly (APN surfo2, no username and password).
Greetings,
Andreas
Click to expand...
Click to collapse
Are you sure there should be no username/password ? http://www.taniwha.org.uk/gprs.html suggests that it should be guest/guest.
Re: MDA Pro German unlocked; UMTS still only works with T-Mo
kevino said:
Are you sure there should be no username/password ? http://www.taniwha.org.uk/gprs.html suggests that it should be guest/guest.
Click to expand...
Click to collapse
Yes, the website you mentioned is a bit outdated. The official o2 Website (Germany) http://www.o2online.de/o2/kunden/technikundeinst/umts/tools/manuell/index.html states that username/password are "nicht notwendig" (=not necessary).
Ah well, I thought it was worth a mention.
Good luck
i guess the question for another radio rom is obsolete.
so i think your last solution is to get a contract with tmobile j/k
im sorry, i think i wont be able to help you....
loopback said:
im sorry, i think i wont be able to help you....
Click to expand...
Click to collapse
That's ok, thanks for trying anyway I'll post again if I find a solution.
does anybody knows if there is an autoconfigurator for italian telephone providers?
Dear Friends,
Since last 5 days I am using Mokee Release Rom in my redmi 1s,
Before two days i am facing network issue in my sim 2 (in sim 2 not using net).
So what is the best solution for it ? can any one guide me properly.
I tried uninstall rom and again install rom
sa.1985 said:
Dear Friends,
Since last 5 days I am using Mokee Release Rom in my redmi 1s,
Before two days i am facing network issue in my sim 2 (in sim 2 not using net).
So what is the best solution for it ? can any one guide me properly.
I tried uninstall rom and again install rom
Click to expand...
Click to collapse
While i wals on mokee i didnt faced any prob. ...please tell more specifically about your problem..(like low call volume, no signal, no internet bla bla)
unkown rockstar said:
While i wals on mokee i didnt faced any prob. ...please tell more specifically about your problem..(like low call volume, no signal, no internet bla bla)
Click to expand...
Click to collapse
I found an issue read narration below.
Sim 1 - (gsm-wcdma) - Using internet
Sim 2 - gsm - Not using net.
When i proffered Gsm - Wcdma network in sim 1 then Facing Network issue, But when i proffered only Gsm in Sim 1 then not facing any issue of network.
so anyone tell me what's going wrong.
try to flash TheBeast kernel,before you do that you should wipr Cache and divlik then flash a Kernel_Compatibility_Patch_Updated package
sa.1985 said:
I found an issue read narration below.
Sim 1 - (gsm-wcdma) - Using internet
Sim 2 - gsm - Not using net.
When i proffered Gsm - Wcdma network in sim 1 then Facing Network issue, But when i proffered only Gsm in Sim 1 then not facing any issue of network.
so anyone tell me what's going wrong.
Click to expand...
Click to collapse
Have you checked your sim performance in other cell phone? You said network issue so first sort this question if your sim can support 3g in your area(to be precise room) since I used Vodafone and I had issues with 3g but 2g worked fine. I later realised that Vodafone had poor 3g reception in my room.
Check your fone with other sim card which has good coverage in your area.
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#*#*
Hey there,
I just moved to Germany with my mi5s.
I know the device doesn't support LTE band 20 (800Mhz), so in some places I'm stuck with 3G.
But it happened to me twice that I coudn't even make normal phone calls. I'm not sure whether that was a bug in LOS 15.1. But it made me wonder: Maybe there is a better configuration for mi5s in a "band-20" place like Germany?
My current setting is "TD-SCDMA/GSM/WCDMA/LTE".
Can anyone recommend any other setting, or should I keep it as is?
Cheers,
Linus X.
Linus X. said:
Hey there,
I just moved to Germany with my mi5s.
I know the device doesn't support LTE band 20 (800Mhz), so in some places I'm stuck with 3G.
But it happened to me twice that I coudn't even make normal phone calls. I'm not sure whether that was a bug in LOS 15.1. But it made me wonder: Maybe there is a better configuration for mi5s in a "band-20" place like Germany?
My current setting is "TD-SCDMA/GSM/WCDMA/LTE".
Can anyone recommend any other setting, or should I keep it as is?
Cheers,
Linus X.
Click to expand...
Click to collapse
There is no way to enable band 20 as you probably know But you can use GSM/WCDMA/LTE setting and maybe it will be more stable for phone calls.
In Serbia we also have band 3 and band 20 4G, so sometimes we are restricted to 2G or 3G. I am using proposed settings and I have good signal
predragiPredrag said:
you can use GSM/WCDMA/LTE setting and maybe it will be more stable for phone calls.
Click to expand...
Click to collapse
Thanks for your advice.
I'm using this setting now and internet connection seems okay.
But I have a different issue: Often phone calls get inerrupted as soon as the other person picks up. Really annoying! I then switch to "GSM only" and can call normally. But obviously that's not a solution.
Any ideas?
Cheers,
Linus X.
You can try with LOS 16, I am using it and I don't have issues with network or call quality. I am living in city where there is enough 4g antennas for band 3.
Make sure VoLTE is not enabled, nor is Wifi calling.
Hello everyone, first of all I would like to apologize because I am French and I don't speak English very well, but I think you are my last hope for the trouble I am currently experiencing.
I own a Samsung Galaxy Note 10+ (SM-N975F) with a Rom Surcouche Operator Bouygues Telecom :
- N975FXXU4CTE9/N975FBOG4CTE9/N975FXXU4CTE9
I wanted to remove my Bouygues Telecom Rom Operator to install a Samsung Rom Stock without any overlayer operator. The operation is well finished so I am now on the Samsung Rom Stock:
- N975FXXS6DTI5/N975FOXM6DDTH7/N975FXXS6DTI5
Except that since this change of Rom I have almost no more 4G+ where I live knowing that before I was always in 4G+ So I would like to know why just by having changed the Rom I lost my 4G+. ( Worries which lasts since September 21st, 2020 ) I wanted to go back but I passed from a bootloader 4 to a bootloader 6
Knowing that I'm with the Free operator, I tested my Free SIM card in my wife's Samsung, I'm getting 4G+ so the problem is not my SIM card, I also sent my phone to Samsung, the phone has no hardware anomaly so it's from the change of Rom, I tried to reinstall the same problem, I also made the wipe I tried everything ...
I also have at home a 4G+ router with a 4G+ plan with the operator Free and I am in 4G+ at full speed ...
I hope to get some help from you because on the French forums I don't have a single answer ... Thanks in advance for your help and sorry again for my english
Test the internet speed on both phones using your sim's data plan with speedtest. If the speed is the same in both then the problem of the 4G indicator is only aesthetic.
Hello bigcalvin, unfortunately I have tested but the speed is not the same at all in 4G+ I go up to 235Mb/s while in H+ I go up to 3Mb/s so there is no problem with the 4G indicator
thominekevin76000 said:
Hello bigcalvin, unfortunately I have tested but the speed is not the same at all in 4G+ I go up to 235Mb/s while in H+ I go up to 3Mb/s so there is no problem with the 4G indicator
Click to expand...
Click to collapse
Have you tried in different areas? What it seems like, is that the stock Samsung ROM is not compatible with your carrier. With system on a chip (SoC), carriers can turn off bands that they don't need, or as a means of locking you into their network.
Sent from my SM-N976V using Tapatalk
Honestly I'm not going to lie to you I've tried everything I've tried a Bouygues télécom rom (bog) a SFR rom (sfr) a France télécom rom (ftm) and a Samsung stock France rom (xef) with my old Bouygues télécom rom (bog) bootloader 4 I always get the 4G+ since I changed my rom and I switched to bootloader 6 I never get the 4G/4G+ again and I sometimes get the 4G+ logos but there are 10 seconds left and then switch to the H+. ..
Hello, sorry for the double post but I don't know where to find help you wouldn't have a solution to my problem? Thanks in advance
I don't understand anything anymore on this phone knowing that my wife and at free and I can receive the 4g very well. I have a 4g router, I can receive the 4g free and my phone since the update doesn't receive anything anymore, I have to go out of my house and walk a good 100 meters to hope to receive the 4g whereas I didn't have this problem before I made the really strange update...
No one would have a solution to give me or manipulation to do I take all the information.
Try a "reset network settings" if you haven't already.
Clear the system cache on the boot menu; it never hurts to do so.
Hi, thank you for your answer unfortunately I have already reset the network settings I have also done the factory settings system cache also reinstallation of a new rom I had to do it about twenty times but still nothing :/
thominekevin76000 said:
Hi, thank you for your answer unfortunately I have already reset the network settings I have also done the factory settings system cache also reinstallation of a new rom I had to do it about twenty times but still nothing :/
Click to expand...
Click to collapse
Yeah pretty basic stuff... that's all I got
Most likely a settings issue but you probably know more than myself at this point to troubleshoot this problem.
Try doing Google searches and view the results for other Samsung phone models and years.
Most times I can find a solution like this or trip over it as an indirect result while searching.
Some of the Samsung software issues have been around for years...
I've already searched everything on google I'm French I've searched on English forums and everything but I can't find anything at all.
I am in France with the mobile operator "Free" which uses the frequencies 700mhz/1800mhz/2600mhz I would like to know if there is a possibility on this phone to choose the frequency that I want one by one I have the impression that it is my 700mhz frequency that has a problem on my phone :/
By using the free App 'Shortcut Master (Lite) from Google Play, you can get access to the Network Settings. In there you can make Band Selection, allowing you to test network connections and performance per band (=frequency) or combinations of bands.
See following thread: https://forum.xda-developers.com/ga...guide-hidden-network-settings-exynos-t3995501
Hope this helps!
Hello OnnoJ, unfortunately I have already tested with this application so it doesn't work. However I compared everything with my wife's phone a Samsung so I have exactly the same settings as on her phone ...
I have to go out of my house and walk a good 200 meters to hope to get 4G, however I specify that before I made this famous update I was always in 4G at home inside and outside of the house and this is not a concern of the mobile operator because otherwise my wife would have exactly the same problem as I have now and I would also have exactly the same problem on my 4G router ...
I think I've done everything and above all I've tested everything and unfortunately I had Samsung on the phone and they put the blame on the operator whereas as explained above my 4G router and my wife's phone have exactly the same mobile operator so they would have the same problem as me ... ...
I would try to revert to the newest firmware that your carrier uses, just to see if the issue is about the bands, search for the latest firm for your carrier, provided that it is of an equal or higher bootloader version to the one you currently have installed, that is what I would do
@thominekevin76000.
Not saying it may help you, but the application works fine for me to access network settings. I use it all the time, as it helps me at home and at work to make the optimum band selection for that specific location to prevent hopping between different cell towers and to have a stable and fastest possible 4G+ connection. CellMapper app allows me to see connection possibilities with the various cell towers and their power.
Hello winol, I can't go back to my old Rom because I had a bootloader of 4 and now I switched to a bootloader of 6 so I can't go back :/)