Question Network Issue - unable to register to 2g/3g - Xiaomi Mi 11

Hi. I don't know how to fix this. I have mi 11 cn version flashed with eu rom.i have 5g and lte signal for both sim cards but they can't make or get in coming calls( my network tries to go back to 2g/3g signal to make a call). I tried both my sim cards to another phone and they are working just fine. I was able to manually switch them to both 2g and 3g with the other phone. I did the *#3646 thing to manually choose a network but it still doesn't work. Tried to reset this a couple of time and even reverted back to cn rom still no luck.

Haven't studied this in detail so not even sure if it is even an issue. But I heard china 5G or 4G etc networks and phones use certain radio bands that are different than in US or Europe or other continents. Perhaps this is why your phone has no 5G reception...?

i have 5g reception.the one that is not working are 2g and 3g.this was working before.im not sure if it it due to eu rom.i know the signal are good because i tried my sim card on a different phone and all receptions are working.

eidelon1301 said:
i have 5g reception.the one that is not working are 2g and 3g.this was working before.im not sure if it it due to eu rom.i know the signal are good because i tried my sim card on a different phone and all receptions are working.
Click to expand...
Click to collapse
Check your apn settings....they may be wrong

apn settings are correct

Related

no Phonesignal available since Update to 20070327_WM5_AKU3.3.1_LVSW_v1.24_WWE

Hello,
i got a Big problem, since i updated my trinity to 20070327_WM5_AKU3.3.1_LVSW_v1.24_WWE, my phone provider is E-plus ( Germany) and i got two sim cards, one delivered with the trinity (umts) and another gsm card. But with both i can´t get a connection to my Phone provider.
I also tried to install a rom, which has worked in the past DOPODASIA_WWE_1.23.707.6_6275_1.35.00.11_108_Ship and
HTC_WWE_1.23.405.2_103_6275_1.38.00.11_108_GPS but no success.
Only with the original rom, it will find a signal, but only for few seconds and then it disapears again, or it keeps changing from G to 3G and back, when the UMTS card is inserted.
But the connection isn´t stable.
In the meantime i tried all roms which i got, but none of the are stable.
By the way, the GSM card works fine in my other mobile Phone.
So it´s defently no problem by my provider.
Try manually disabling the 3g and using only GSM.
Thanks, it seems that this solved my problem.
But i´m wondering, it worked before with UMTS, that means that i got
3G on Top, in the past and didn´t experienced any problems.
But now not even with the original Rom without GPS, i can get a connection using 3G.
But nevertheless with GSM it works fine, i appreciate!
Try getting a 3g connection on an another phone and with the same provider because it may be a network/provider issue and nothing to do with your phone.
my other phone is a sony-ericsson k750i, so it´s not UMTS capable.
But i can try to switch back to umts later, to see if this is a provider problem.
thanks and regards

3g Issue - UNUSUAL

Basically, my N1 when on stock worked perfectly with 3g, yes sometimes it was a bit patchy but it worked. I am using my old blackberry sim (UK), with the internet converted from bberry internet to normal.
Everything was going fine until I put my brother's orange sim in my phone (UK) [he also has a stock nexus, although at the time i was on 5.0.0.3 CM] to see if it was just his phone which had a 3g issue. I never managed to pick up 3g while his sim was in my phone, even though 2 blackberry bolds sitting next to it with orange sims in had perfect 3g.
ANYWAY THATS NOT THE ISSUE.
After replacing my sim in my phone, Ive never since had 3g, ever, even on routes I know the signal is immense.
What I want to know is 1) what would swapping sims have done to the phone, 2) what I can do to possibly reverse it so I can enjoy my 3g again
CM .6
Desire CAM + OC/UV
Cheers
I haven't had this same problem but if I were you I would go to your carrier and get a replacement SIM card. The last time I had a weird issue like this I replaced my SIM and all of a sudden I got pure 3G signals everywhere where I hadn't before. If you get the new SIM and it still doesn't work, try wiping and install a completely different ROM (perferably stock) and see what happens.
Hope this helps!
Sellitus said:
I haven't had this same problem but if I were you I would go to your carrier and get a replacement SIM card. The last time I had a weird issue like this I replaced my SIM and all of a sudden I got pure 3G signals everywhere where I hadn't before. If you get the new SIM and it still doesn't work, try wiping and install a completely different ROM (perferably stock) and see what happens.
Hope this helps!
Click to expand...
Click to collapse
But before I put my brothers sim in my phone, my sim worked perfectly fine, so I was thinking it was more likely to be phone than my sim?
Anyone have any ideas?
his sim seems to have disabled 3g somehow in your phone, though I've never heard me that before. have you gone into the info menu and seen if your 3g is still enabled? *#*#4636#*#* on your dialpad.
WHOOPs, yeah I had it off [while we were testing etc] and sort of forgot :/ Which setting is it meant to be on, GSM/CDMA auto?
you want it to be on WCDMA Preferred.
I've set it correctly now, and am getting 'H'. I didn't actually realise that it is a type of 3g network, however I am SURE It used to say '3g'. UK O2 if it makes a difference.
well H stands for HSDPA which is what some ROMs show. so have you flashed to a different custom ROM? either way you are getting correct high speed network, so no worries. my nexus only says 3G even when i'm on HSDPA.
RogerPodacter said:
well H stands for HSDPA which is what some ROMs show. so have you flashed to a different custom ROM? either way you are getting correct high speed network, so no worries. my nexus only says 3G even when i'm on HSDPA.
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Click to collapse
Yeah, CM 5.0.6, although I did see a real 3g today *strokes phone* goooood boy

[Q] 3g problems nexus one

hello every body
i have this problem with my nexus one when i am connected to 3g service (umts,hsdpa,Etc'). i can't make calls or receive any calls, i can't use the internet (data) or get sms and Etc'. but i have full bars reception. when i check the vi in setting to "use only 2g" the phone work great.
i tried everything downgrade/upgrade roms,radios. i tried to go back to my first backup and even do PASSIMG but nothing help i googled it every where but nothing
please some one can help???
without 3g the smartphone is useless
thanks,
shushkis
What network you on? I would at least see how old the sim card is.
Lots of time if you have an older sim card it just can't handle a newer system.
I am connected through Orange IL
and i tried switching sims even with other networks.
and more the phone worked fine at the beginning it just happened i remember i switch to one of CY roms and it happened
Have you tried a full wipe and reinstall the rom?
yes of course i tried customized roms and stock roms but nothing helped
I would check your apn settings...
apn connected to taking or getting calls?
i thought it's just for internet connection
Its just a guess.
If its a problem on multiple ROMs, its likely to be either hardware or settings. Settings are cheaper and easier to test, and that's the only setting I can think of...?
Of course, doing a full wipe (including system), installing a new ROM, and testing before you restore any apps and settings may be another way to test, but since the apn settings are pre-baked into most ROMs, it wouldn't rule our the apn...?
OK I tried to put apn settings and it didnt help
you say hardware?
but when I check in settings "use only 2g" the transceiver works great .
maybe the nexus have two transceiver one for 2g and one for 3g?
seems un-logical
No there are two radios one for 3g and one for 2g because 2g is for calls and 3g for data but when 3G is unavailable the phone will use the 2g for the data.
The Same Trouble
shushkis,
I have the same trouble, my 3G connection works so bad, but if I use only 2g connection, all works good... I have no idea what happend with my N1. I have a N1 for 3G 850 (AT&T) model.
Thanks for advantage.
So maybe the problem is the hardware? if the N1 have two inidvidul transcivers?
I have also the same problem. I've tried many different roms and radios. I use 900/2100 3G. What's strang is that 3G works perfectly at home, but when moving to another tower I get emergency calls only warning. 2g works fine.
I just started having 3G issues at home. With 3G on the phone reboots like once an hour, but on 2G I've gone days without a reboot. My 3G signal is not the best at home, but I don't know why that would make the phone reboot. I'm on T-Mo USA.
bobbyphoenix said:
I just started having 3G issues at home. With 3G on the phone reboots like once an hour, but on 2G I've gone days without a reboot. My 3G signal is not the best at home, but I don't know why that would make the phone reboot. I'm on T-Mo USA.
Click to expand...
Click to collapse
Go get a new SIM card...
danger-rat said:
Go get a new SIM card...
Click to expand...
Click to collapse
The one I'm using is only a couple months old, and it works well in my Desire HD, and my Moto Defy. It's only the N1, but I guess maybe it could be that. I'll look into more.
If it's only a few months old, then it may nor be the SIM that is the problem. I suggested it because a number of T-Mo users were having similar problems after a recent network upgrade, and a new SIM seems to fix the issue for most...

4G LTE issue not working

I've got a big problem with my 4G connection... I have WIND (IT) as carrier
When I activate 4G mode, the icon appears on the notification bar, but the connection doesn't work.
I have CM11 and I tried different ROMs, also tried to relock bootloader and return to stock FW, but nothing changed
The APN is correct and it works perfectly with 3G connection
I have the same problem. 3G and LTE are not working. The signal in status bar is showing that there is signal but technically there isn't.
I talked to my network carrier, the told me to change my sim card but the problem remains.
acceleron said:
I have the same problem. 3G and LTE are not working. The signal in status bar is showing that there is signal but technically there isn't.
I talked to my network carrier, the told me to change my sim card but the problem remains.
Click to expand...
Click to collapse
Any devices are only capable of connecting to a specific set of bands. Please make sure the place of yours / carrier supports and make use of the bands that XSP supports.
This should be a rare case, since XSP supports a handful of 4G LTE bands. Therefore, this reply of mine is a useless post. Lol
You might want to check your APN to see if it is correct.
Everything with the APN is correct. The problem is with the phone.
Even after flashing sony official stock rom the problem continues...
acceleron said:
Everything with the APN is correct. The problem is with the phone.
Even after flashing sony official stock rom the problem continues...
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Click to collapse
Well then i have no idea at all
I think it's hardware problem.

Question Big issue, No Data during a call.

So One thing I discovered on this new phone of mine is that although working perfectly there is a major flaw in the way Internet data works during a phone call.
Any time you make a call, the phone downgrades the active signal from 5G/4G to H or E ( GSM).
Which in turns cuts off the data.
If I force 5G or 4G, then the phone call cannot be made. It just disconnects.
I have tried all settings, Volte enable/disable with no joy.
Some have said it's a carrier limitation, but it's not, cause in my iPhone, the very same simcard works just fine and the Internet is usable during a call.
Also tried with dual Simcard setup. As in the settings, the phone allows to use one simcard for data and one for call. Still not working.
Can someone please tell me if there is a solution please, or can you try your phone while on the call to see if Internet works as this feature is detrimental to me keeping the phone. If this doesn't work I will be selling the phone and getting a realme replacement.. Xiaomis sometimes suck with their non existent support.
Thanks
Evo400 said:
So One thing I discovered on this new phone of mine is that although working perfectly there is a major flaw in the way Internet data works during a phone call.
Any time you make a call, the phone downgrades the active signal from 5G/4G to H or E ( GSM).
Which in turns cuts off the data.
If I force 5G or 4G, then the phone call cannot be made. It just disconnects.
I have tried all settings, Volte enable/disable with no joy.
Some have said it's a carrier limitation, but it's not, cause in my iPhone, the very same simcard works just fine and the Internet is usable during a call.
Also tried with dual Simcard setup. As in the settings, the phone allows to use one simcard for data and one for call. Still not working.
Can someone please tell me if there is a solution please, or can you try your phone while on the call to see if Internet works as this feature is detrimental to me keeping the phone. If this doesn't work I will be selling the phone and getting a realme replacement.. Xiaomis sometimes suck with their non existent support.
Thanks
Click to expand...
Click to collapse
This comes from the operator who has not yet communicated with Xiaomi.
Same case with 2 operators on the same phone.
What version of rom?
NOSS8 said:
This comes from the operator who has not yet communicated with Xiaomi.
Same case with 2 operators on the same phone.
What version of rom?
Click to expand...
Click to collapse
Global ROM 13.0.4
I can't see an operator fault if they have Volte services enabled and this simcard works flawlessly on other android systems.
As a matter of fact, any SimCard i have tried, so far 3 providers and the phone does the same thing. As soonest the call is made it downgrades the signal to H while full 5G or 4G is available??
Evo400 said:
Global ROM 13.0.4
I can't see an operator fault if they have Volte services enabled and this simcard works flawlessly on other android systems.
As a matter of fact, any SimCard i have tried, so far 3 providers and the phone does the same thing. As soonest the call is made it downgrades the signal to H while full 5G or 4G is available??
Click to expand...
Click to collapse
the operator must provide the necessary information for each brand and phone to activate Volte and Wowifi.
On my 11t pro everything works with SFR and nothing with FREE because Free has not yet transmitted the information necessary to activate the services.
So went to see the operator. They sell Xiaomi phones. 3 network ( Three EU)
The phones in the stores are working just fine, no issues at all. And my phone simply just isnt.I have tried every possible setting and still not working.
See the screenshot below. As I'm typing this I'm on a super fast full signal 5G connection. As soon as I make a phone call, the phone will downgrade to E or H+ which is horrible. This network signal switching is also laggy, and If 2g signal is poor I cannot even make a call.
Evo400 said:
So went to see the operator. They sell Xiaomi phones. 3 network ( Three EU)
The phones in the stores are working just fine, no issues at all. And my phone simply just isnt.I have tried every possible setting and still not working.
See the screenshot below. As I'm typing this I'm on a super fast full signal 5G connection. As soon as I make a phone call, the phone will downgrade to E or H+ which is horrible. This network signal switching is also laggy, and If 2g signal is poor I cannot even make a call.
Click to expand...
Click to collapse
Does the "Use VoLTE" switch appear in the SIM card settings?
If not you can try the Dialer Code *#*#869434#*#*. That only will make this switch appear, but sometimes this is enough. It should also show the little VoLTE-Badge next to the signal strength (see screenshot).
Deleted
I just had another look and on your 1st post it says the SIM is named "3 IRL", as far as I know Three Ireland does not offer VoLTE at all.
So it will always drop to 3G/H+ or 2G/E ... on every phone.
mici01 said:
I just had another look and on your 1st post it says the SIM is named "3 IRL", as far as I know Three Ireland does not offer VoLTE at all.
So it will always drop to 3G/H+ or 2G/E ... on every phone.
Click to expand...
Click to collapse
5G connection should support this naturally. If I put this simcard Into an iPhone or Galaxy the 5G connection stays on regardless.
Anyway even with Vodafone this doesn't work,so I'm thinking it either a phone limitation or a phone is fooked
Evo400 said:
5G connection should support this naturally. If I put this simcard Into an iPhone or Galaxy the 5G connection stays on regardless.
Anyway even with Vodafone this doesn't work,so I'm thinking it either a phone limitation or a phone is fooked
Click to expand...
Click to collapse
No, for VoNR your phone still needs the same configs as with VoLTE. Though only a few operators support VoNR as of now.

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