Can't make or receive calls - Xiaomi Mi A1 Questions & Answers

Hi,
Since I got the phone, I was unable to receive or make outgoing calls on my MI A1.
Data and txt msging works and I have tried separate sim cards that work in a different phone and was unable to call from the MI A1 so it isn't my sim card that is the problem.
I have tried putting my sim in both the first and the second slot to no avail.
When I have it set to 4g or 2g it begins a call and it hangs up automatically after a minute if I use 3g it is unable to make a call and instantly hangs up.
The phone is running 8.0.0 version of Android.
Thanks in advance for any advice.

Wolf_Knight said:
Hi,
Since I got the phone, I was unable to receive or make outgoing calls on my MI A1.
Data and txt msging works and I have tried separate sim cards that work in a different phone and was unable to call from the MI A1 so it isn't my sim card that is the problem.
I have tried putting my sim in both the first and the second slot to no avail.
When I have it set to 4g or 2g it begins a call and it hangs up automatically after a minute if I use 3g it is unable to make a call and instantly hangs up.
The phone is running 8.0.0 version of Android.
Thanks in advance for any advice.
Click to expand...
Click to collapse
Check your APN settings in the phone, my network provider did not send them automatically and I had to input them in manually, when I checked my APN it was blank!

kudos1uk said:
Check your APN settings in the phone, my network provider did not send them automatically and I had to input them in manually, when I checked my APN it was blank!
Click to expand...
Click to collapse
I went into network settings and checked my APN settings, they weren't blank. However, I tried and made a new APN that my provider uses, still no luck when calling.
While in the network setting I tried choosing a network and registered my provider's network. This time I got the error notification "Selected network is unavailable" with the dailer giving me "Mobile network not available"
Is it possible that calling is not supported, but 4g and data are?

Wolf_Knight said:
I went into network settings and checked my APN settings, they weren't blank. However, I tried and made a new APN that my provider uses, still no luck when calling.
While in the network setting I tried choosing a network and registered my provider's network. This time I got the error notification "Selected network is unavailable" with the dailer giving me "Mobile network not available"
Is it possible that calling is not supported, but 4g and data are?
Click to expand...
Click to collapse
What country are you in and what band does your provider use?
Also what A1 do you have, it's printed on the back of phone: MDI2 (India) & MDG2 (Global)?
If it's global it will also have a big red sticker on both sides of the box saying "Global Version".
Even with a global phone, still check the bands your provider uses matches the bands your phone has.
MDI2 has limited bands, no band 20 for instance which would stop it connecting in many country's.
---------- Post added at 22:50 ---------- Previous post was at 22:49 ----------
Sorry I just read you have data so it cant be the bands Mmmmmmm.

kudos1uk said:
What country are you in and what band does your provider use?
Also what A1 do you have, it's printed on the back of phone: MDI2 (India) & MDG2 (Global)?
If it's global it will also have a big red sticker on both sides of the box saying "Global Version".
Even with a global phone, still check the bands your provider uses matches the bands your phone has.
MDI2 has limited bands, no band 20 for instance which would stop it connecting in many country's.
---------- Post added at 22:50 ---------- Previous post was at 22:49 ----------
Sorry I just read you have data so it cant be the bands Mmmmmmm.
Click to expand...
Click to collapse
My provider is US t-mobile.
On Amazon it said global and unlocked.
Model number on the back is MDG2

Wolf_Knight said:
My provider is US t-mobile.
On Amazon it said global and unlocked.
Model number on the back is MDG2
Click to expand...
Click to collapse
You should be OK the global supports:
Mode Band
GSM B2, B3, B5, B8
UMTS B1, B2, B5, B8
FDD-LTE B1, B3, B4, B5, B7, B8, B20
TDD-LTE B38, B40
See here for more info: https://forum.xda-developers.com/mi-a1/help/mi-a1-tmobile-california-usa-t3692455

Wolf_Knight said:
My provider is US t-mobile.
On Amazon it said global and unlocked.
Model number on the back is MDG2
Click to expand...
Click to collapse
Did you ever figure it out? I'm on t-mobile in the US also and calls only work sometimes. I notice that when making or receiving a call the 4G indicator in the status bar will disappear. Seems like the phone is switching to a different band just to make calls and sometimes it can't switch fast enough so the call is missed.

KHANrad_SIN said:
Did you ever figure it out? I'm on t-mobile in the US also and calls only work sometimes. I notice that when making or receiving a call the 4G indicator in the status bar will disappear. Seems like the phone is switching to a different band just to make calls and sometimes it can't switch fast enough so the call is missed.
Click to expand...
Click to collapse
Nope, I returned it.

Mine worked perfectly for nearly a year, and started this about a month ago after an update. So I can no longer return it, but it's pretty useless without calling capability. Anybody else have any ideas?

I have the same problem.

Lorwik said:
I have the same problem.
Click to expand...
Click to collapse
did you ever figure anything out? i'm having this issue too now

jchart91 said:
did you ever figure anything out? i'm having this issue too now
Click to expand...
Click to collapse
No

Related

No 4G/LTE with SM-G935FD

I have a new SM-G935FD purchased in the UAE. The software version is MMB29K.G935FXXU1APD1. The phone has a "United Arab Emirates" section in the About page.
I travel a lot. I generally use a local SIM when I am in a country for some time. Right now I am in France. I am using a SIM from Bouygues Telecom but I have no 4G/LTE service at all. The phone is connecting at H+ and also at 3G, but it is not showing 4G/LTE at all.
I will be in several other European countries as well as the US soon. I specifically purchased this phone because it has all the LTE bands for the countries I spend time in. This same SIM does give me LTE connections on Bouygues when I use it in my old phone (a Motorola X 2nd Gen). I had expected this phone to just work on LTE everywhere that I typically go.
I have looked through these forums and see a thread or two about others with LTE problems. But no clear solutions.
I have tried various apps such as LTE Discovery (no luck) as well as 4G LTE Switcher - using that if I set "LTE only", I get no service at all, and then have to reboot the phone before I get service back.
Is there something I need to do to get LTE?
Thanks.
Have you put the SIM in the correct slot?
liquidguru said:
Have you put the SIM in the correct slot?
Click to expand...
Click to collapse
Yes, the bottom slot. The SDcard is in the top slot. The SIM is showing in the phone as "SIM1".
Strange. I have a G935FD and it works with LTE no problems. I've used it in Singapore and Indonesia, with different SIMs and all work.
In Settings - Mobile Networks - Network Mode, it's set to LTE/3G/2G?
liquidguru said:
Strange. I have a G935FD and it works with LTE no problems. I've used it in Singapore and Indonesia, with different SIMs and all work.
In Settings - Mobile Networks - Network Mode, it's set to LTE/3G/2G?
Click to expand...
Click to collapse
Yes it is. I've tried changing to one of the non-LTE modes and back, but no change.
In the About device / Status / SIM Card status page, I see Mobile network type as UTMS. Shouldn't that have LTE and, if so, how do I change it?
Mine says the same, but I'm only connected to 3G at the moment, so I don't know if it's normal it not. I have a 4G card in, but I'm out of my area's 4G network range.
Edit: Actually I was connected to my wifi. Now I'm connected to my 3G and it says HSPA+ now
Edit again: Ok, so my phone is jumping between 3G and H+, which is what's changing.
liquidguru said:
Mine says the same, but I'm only connected to 3G at the moment, so I don't know if it's normal it not. I have a 4G card in, but I'm out of my area's 4G network range.
Edit: Actually I was connected to my wifi. Now I'm connected to my 3G and it says HSPA+ now
Edit again: Ok, so my phone is jumping between 3G and H+, which is what's changing.
Click to expand...
Click to collapse
Ah, mine is doing the same. I see Mobile network type jumping between UMTS and HSPA+ if I watch for a while. Obviously that field is a status field, not a setting field.
Thing is, I am in an area with full LTE coverage.
At least you seem to be confirming that this should work. Still need to figure out what the problem is.
I have the same Problem in Spain. With a Vodafone Card I dont have 4G Connection (The same card in a the Galaxy S5 of my wife works with 4G). But with a Yoigo Card I have 4G Connection. The software version is MMB29K.G935FXXU1BPH6. The phone has a "United Arab Emirates" section in the About page too. Any Idea?
Thanks

UMI Super 3G instead of 4G

Hi,
did anyone using Umi Super have any problems with using 4G at 800MHz? Im on giffgaff and even though Umi Super is supposed to work at 4G under 800MHz (thats what the specification states) i cant manage to make it work. I have perfect 4G coverage, 4G sim, 4G tariff, even gave my sim to a friend with S7 edge and it worked on his phone. Maybe new update will fix that? I tried with different sim from different operator (LYCA) and it works but 4G in LYCA is at 2100MHz so I didnt really check the 800. I tried everything and still nothing. Did anyone have similar problem?
I actually bought 2 phones of the same model so I decided to check if 4G worked on the other one and as I put the sim card in I just remembered something and realized same thing happened with my phone. When I put the SIM card in for the first time it DID automatically go to 4G, ok, when I looked for available networks it found O2 4G, granted BUT!!! when i got to "preferred network type" there is only 3G to pick, and THE MOMENT I PICK IT there is not possible to go back. Every network I find from that moment is only 2G or 3G. Now i reckon that a software problem right? See attachments
It is a software bug and I think I sort it out after flashing the phone. For now I sorted out the problem using Networks app by Philipp Mangalov and switching network to LTE/GSM auto
Well it seems the data part of the UMI SUPER is not so super, is it? I face a similar problem but worse. The 4G band of 800 doesn't work(despite being advertized by UMI as supported) but luckily the band of 2100 works without any issues. The problem comes when I'm out of 2100 band coverage and phone must switch to 3G - then I lose all data connectivity completely. So basically whenever I'm out of 4G 2100 coverage(which is often) I am without any connectivity! Anyone facing the same? Solution?
Indopilot said:
Well it seems the data part of the UMI SUPER is not so super, is it? I face a similar problem but worse. The 4G band of 800 doesn't work(despite being advertized by UMI as supported) but luckily the band of 2100 works without any issues. The problem comes when I'm out of 2100 band coverage and phone must switch to 3G - then I lose all data connectivity completely. So basically whenever I'm out of 4G 2100 coverage(which is often) I am without any connectivity! Anyone facing the same? Solution?
Click to expand...
Click to collapse
I only have 3G and the phone shows that I have internet, but when I try to actually use the data it just says no connection on apps.
zbysogi said:
Hi,
did anyone using Umi Super have any problems with using 4G at 800MHz? Im on giffgaff and even though Umi Super is supposed to work at 4G under 800MHz (thats what the specification states) i cant manage to make it work. I have perfect 4G coverage, 4G sim, 4G tariff, even gave my sim to a friend with S7 edge and it worked on his phone. Maybe new update will fix that? I tried with different sim from different operator (LYCA) and it works but 4G in LYCA is at 2100MHz so I didnt really check the 800. I tried everything and still nothing. Did anyone have similar problem?
Click to expand...
Click to collapse
I don't have this issue at all. My UMi Super connects perfectly to my 4g network under 800MHz without an issue here in Uganda. You can install the MTK Engineering app from the play store and check the band compatibility on ur device and you can also set the mode using the same app under android settings.
You could also try updating to the latest OTA which is 20160810 or the one before it by downloading the files from forum post here and saving them to ur phone and updating manually if you don't have the current OTA
sachak said:
I don't have this issue at all. My UMi Super connects perfectly to my 4g network under 800MHz without an issue here in Uganda. You can install the MTK Engineering app from the play store and check the band compatibility on ur device and you can also set the mode using the same app under android settings.
You could also try updating to the latest OTA which is 20160810 or the one before it by downloading the files from forum post here and saving them to ur phone and updating manually if you don't have the current OTA
Click to expand...
Click to collapse
GravityBox is a perfect solution for this problem. You can set up an icon in notification bar allowing You to toggle between 2G/3G/4G
zbysogi said:
I actually bought 2 phones of the same model so I decided to check if 4G worked on the other one and as I put the sim card in I just remembered something and realized same thing happened with my phone. When I put the SIM card in for the first time it DID automatically go to 4G, ok, when I looked for available networks it found O2 4G, granted BUT!!! when i got to "preferred network type" there is only 3G to pick, and THE MOMENT I PICK IT there is not possible to go back. Every network I find from that moment is only 2G or 3G. Now i reckon that a software problem right? See attachments
Click to expand...
Click to collapse
same problem
This is indeed a software issue, one I have come accross many times - using an app to toggle between the service types is the best workaround!
There are many apps that work to resolve this, some great ones have already been mentioned.
TerryWebbs said:
This is indeed a software issue, one I have come accross many times - using an app to toggle between the service types is the best workaround!
There are many apps that work to resolve this, some great ones have already been mentioned.
Click to expand...
Click to collapse
Could you tell me some app that resolve this?
Thanks
I've got a UMI Super and had this issue as well:
try this app:
Network by Philipp Mangelow
https://play.google.com/store/apps/details?id=de.mangelow.network
4g Umi Super on Giff Gaff
You need Giff Gaff settings in access point name. If you try and use O2 4g it doesn't work even though Giff Gaff uses O2 network. Settings are really easy to input but MUST be Giff Gaff not O2.
zbysogi said:
I actually bought 2 phones of the same model so I decided to check if 4G worked on the other one and as I put the sim card in I just remembered something and realized same thing happened with my phone. When I put the SIM card in for the first time it DID automatically go to 4G, ok, when I looked for available networks it found O2 4G, granted BUT!!! when i got to "preferred network type" there is only 3G to pick, and THE MOMENT I PICK IT there is not possible to go back. Every network I find from that moment is only 2G or 3G. Now i reckon that a software problem right? See attachments
Click to expand...
Click to collapse
There is a fix on rooted phones by using GravityBox and switching between 2G/3G/4G
Thread can be closed.
4G on a Umi Super on GiffGaff.
zbysogi said:
There is a fix on rooted phones by using GravityBox and switching between 2G/3G/4G
Thread can be closed.
Click to expand...
Click to collapse
All that's needed is GiffGaff settings inputing manually. Very easy to do. O2 settings that the phone recognises when a GiffGaff sim is used WILL NOT WORK. The Network is O2 but the APN settings for GiffGaff are totally different.
All you guys that think you know what you're doing obviously don't.
No need to Root or use GravityBox or any other App.
Maz Jones said:
All that's needed is GiffGaff settings inputing manually. Very easy to do. O2 settings that the phone recognises when a GiffGaff sim is used WILL NOT WORK. The Network is O2 but the APN settings for GiffGaff are totally different.
All you guys that think you know what you're doing obviously don't.
No need to Root or use GravityBox or any other App.
Click to expand...
Click to collapse
Well said. I just shake my head in despair when I see how totally clueless people try to be teachers and Internet gurus with very limited knowledge about the task at hand. These comments should come with warning stickers.
For those who want to be able to switch between 3G/4G and LTE only, use this nifty little APK that I've attached below. It will allow you to enter engineer mode without using the dial code.
Hi
This is a bug implemented in Android 7.0.
I had the same.
1 Just force in your parameters 2G/3G networks
2 wait for network authentification (no more excalamtion mark)
3 go back to 4G
Every thing will be OK to next switch off or plane mode.
Rgds,
LTE band 7 (2600) not working
I recently received my new Umi Super and updated to the last firmware V7.01_20170413, everything works fine except for the 4G. I live in an area where band 7 (2600) is available but the phone can't connect to it. Of course, my preferred network type is set to 4G/3G/2G (auto).
I read a lot about the issue on the internet but I can't find a solution.
I checked the BandMode on the phone by dialing *#*#3646633#*#*, band 7 is included and checked. However, when I tried to remove the other LTE bands and keep only band 7, I got a message explaining that the list can't be empty ("Failed. The band is changed from not null to null, it is illegal"), though the list was not completely empty because band 7 was still selected.
Also, I tried to change the radio band by dialing *#*#4636#*#*, but process com.android.phone stopped working when I pressed "select radio band", even after I cleared cache in phone and sim apps.
Can anyone tell me how to fix the problem and get connected to 4G.
BTW, Network by Philipp Mangelow is not available anymore. Switching between 3G/2G and 4G/3G/2G settings doesn't fix the issue. I tried the giffgaff settings, but the APN gets deleted as soon as I try to save it.
Thanks
bemo00 said:
I recently received my new Umi Super and updated to the last firmware V7.01_20170413, everything works fine except for the 4G. I live in an area where band 7 (2600) is available but the phone can't connect to it. Of course, my preferred network type is set to 4G/3G/2G (auto).
I read a lot about the issue on the internet but I can't find a solution.
I checked the BandMode on the phone by dialing *#*#3646633#*#*, band 7 is included and checked. However, when I tried to remove the other LTE bands and keep only band 7, I got a message explaining that the list can't be empty ("Failed. The band is changed from not null to null, it is illegal"), though the list was not completely empty because band 7 was still selected.
Also, I tried to change the radio band by dialing *#*#4636#*#*, but process com.android.phone stopped working when I pressed "select radio band", even after I cleared cache in phone and sim apps.
Can anyone tell me how to fix the problem and get connected to 4G.
BTW, Network by Philipp Mangelow is not available anymore. Switching between 3G/2G and 4G/3G/2G settings doesn't fix the issue. I tried the giffgaff settings, but the APN gets deleted as soon as I try to save it.
Thanks
Click to expand...
Click to collapse
You may try to force 3G and then try to force 4G
You may try to user another IMEI number from a UMI device with 2600 support (of course backup/write down the original one before just in case)
http://www.ucc.co.ug/data/imei/2
After the update to Nougat 7.x how long does it take to do a full recharge?
Do you still have fast charge feature (< 1 hour) or do you lost it like all users reported so far?
What about your GPS? Do you have a fast fix after cleaning history and is it reliable (not losing signal often?).
SimurghXDA said:
You may try to force 3G and then try to force 4G
You may try to user another IMEI number from a UMI device with 2600 support (of course backup/write down the original one before just in case)
http://www.ucc.co.ug/data/imei/2
After the update to Nougat 7.x how long does it take to do a full recharge?
Do you still have fast charge feature (< 1 hour) or do you lost it like all users reported so far?
What about your GPS? Do you have a fast fix after cleaning history and is it reliable (not losing signal often?).
Click to expand...
Click to collapse
Is it safe to change the IMEI number? and where can I find another number for a UMI device?
GPS is working fine, it fixes pretty fast, but I'm not sure about interruption in the signal because I haven't used it enough yet

Nexus 6p GSM signal not working

Brothers , Need your help !!!
Got a Nexus 6p from US , model is A1 H1511 which has less radio bands compared to the global version A2 - H1512 .
Problem :- GSM radios are not working , Unable to call or receive calls. Seems like the bands are still set to US frequencies
Solution Tried (with no luck yet) :
> *#*#4636 and tried to change bands
> As per some forums tried flashing Chroma ROM
> CM 14 rom
> Latest Radio bands and most of the old ones
> Bitdomo's pure nexus rom and other roms
still no luck , Can anyone suggest anything on this . Looking forward for your support . Thanx
ramrock007 said:
Brothers , Need your help !!!
Got a Nexus 6p from US , model is A1 H1511 which has less radio bands compared to the global version A2 - H1512 .
Problem :- GSM radios are not working , Unable to call or receive calls. Seems like the bands are still set to US frequencies
Click to expand...
Click to collapse
Is the phone used? Which carrier are you on? What is your current Baseband version? Have you tried creating a new APN profile based on the carrier? Have you tried a known working SIM from a DIFFERENT carrier, and then swapping your's back. Why did you bring the International model into the conversation unless it applies somehow?
Hi, i have thé same trouble with my model buyed in switzerland.
When i'm be back from Thaïlande, After 2 days, m'y GSM signal die.
I tryed hard reset, *#*#4636#*#*, flash thé rom with an older one .....Nothing happen.....
Restore Factory setting, another sim, Nothing happen.
It's very frustrating..
I hope someone have a solution.
Thanks guys
v12xke said:
Is the phone used? Which carrier are you on? What is your current Baseband version? Have you tried creating a new APN profile based on the carrier? Have you tried a known working SIM from a DIFFERENT carrier, and then swapping your's back. Why did you bring the International model into the conversation unless it applies somehow?
Click to expand...
Click to collapse
> My Uncle had given it to me during his last visit here in India from the US, He has upgraded to Pixel. He had bought it from Google store.
> Indian Carrier Airtel/Vodafone/Jio tried all
> Baseband Version 3.79
> Jio carrier is Only LTE with Band 3,5 and 40. But the main band i.e Band 40 is not included in the North American Nexus 6P so signal strength not that gr8 . So using a GSM sim would be an ideal choice here.
Comparison of Radio bands supported by Nexus 6p versions
North America: A1 - H1511
GSM/EDGE: 850/900/1800/1900MHz
UMTS/WCDMA: B1/2/4/5/8
CDMA: BC0/1/10
LTE (FDD): B2/3/4/5/7/12/13/17/25/26/29/30
LTE (TDD): B41
CA DL: B2-B2, B2-B4, B2-B5, B2-B12, B2-B13, B2-B17, B2-B29, B4-B4, B4-B5, B4-B13, B4-B17, B4-B29, B41-B41
Rest of world: A2 - H1512
GSM/EDGE: 850/900/1800/1900MHz
UMTS/WCDMA: B1/2/4/5/6/8/9/19
TD-SCDMA: 34/39
CDMA: BC0/1
LTE (FDD): B1/2/3/4/5/7/8/9/17/19/20/28
LTE (TDD): B38/B39/40/41
CA DL: B1-B5, B1-B8, B1-B19, B3-B3, B3-B5, B3-B7, B3-B8, B3-B19, B3-B20, B3-B28, B5-B7, B7-B7, B7-B20, B7-B28, B39-B39, B40-B40, B41-B41
> M not planning to give it back to my uncle :silly: . And have read on forums that people do have resolved such issue's while flashing chroma and other roms . tried all that but no luck yet.
Fred92100 said:
Hi, i have thé same trouble with my model buyed in switzerland.
When i'm be back from Thaïlande, After 2 days, m'y GSM signal die.
I tryed hard reset, *#*#4636#*#*, flash thé rom with an older one .....Nothing happen.....
Restore Factory setting, another sim, Nothing happen.
It's very frustrating..
I hope someone have a solution.
Thanks guys
Click to expand...
Click to collapse
Ya Fred, I can understand your frustration. As I can't use this phone my Primary, for now, is a windows phone.
WP10 does not have any apps to be used and this is not having signals to make calls..
ramrock007 said:
Ya Fred, I can understand your frustration. As I can't use this phone my Primary, for now, is a windows phone.
WP10 does not have any apps to be used and this is not having signals to make calls..
Click to expand...
Click to collapse
Dude you're not alone.....facing similar problem here...
I live in India and In my case the signal comes and goes in every 5 minutes or so automatically. But after the signal loss it sometimes shows "No Service" and sometimes "emergency calls only" in the Network Tile in Quick settings.. But with both the error it also shows the network name like:- "No Service-Network name" and "Emergency calls only-network name" ?.. And also while there is signal I'm not able to make/get any calls or messages from my telenor and jio sim but in airtel I get signal for more long time than the others(max 1hr I got ) and also I can make/get calls 'MOST OF THE TIMES' through Airtel and 'NOT A SINGLE TIME' with the others...:crying:
Really frustrated. Did an upgrade to android O dp4 still the same issue.. Was there in N too..Also did a factory reset on N but no success... Imei shows in my about phone in sim information...
And btw I also have H1511 model factory unlocked purchased from US.... Same like yours... Did you find any fix??
Thanks!!!
Sent from my Nexus 6P using XDA Labs

Problem with 4G signal @ Dutch vodafone 800, 1800, 2600 MHz

Hello,
I have the following problem: I can't get a 4G signal with my provider.
Vodafone Netherlands uses 800, 1800, 2600 MHz for 4G connection.
I have bought my telephone at flosmall . com
It should work, or do I forget something?
Can somebody explain this?
I had the same.
I tried some 4g signals apps to check my connection. This one seemed to fix it: https://play.google.com/store/apps/details?id=com.mcstealthapps3.networksignalsearch
Let me know if it worked for you!
I have trieded with the app but nothing changed.
But still on 3G...
I need to ask this.
Is your SIM card even 4G capable? If its older than 3-4 years it might not be.
I don't know anything about vodafone, but try googling, for one of my providers I actually needed to activate 4G on their website after logging in to my account.
Also. Settings -> Dual SIM & mobile networks. Is network mode set to 4G priority and Celluar data to correct SIM card if you are using dual setup.
Yes the sim card is capable with 4G (was using it on Lumia 950XL).
Have contacted Vodafone about the problem.
But the will only support devices that Vodafone Netherlands will be sell.
Have tried to flash lineage rom, but nothing change about the signal.
(stock Rom was from groschopp)
I also have a Le Pro 3 (x720) on the same network in the Netherlands and I have no issues with 4g.
I am currently using the Grossoshop-Rom (Build-number WAXCNFN5902011181S).
You can download several signal apps in the play-store to see if Band 20 is available to you, this is the one used in my region for 4g Vodafone.
I assume you set the preferred network type to 4G?
It's working now
Have called Vodafone again for some extra information about the frequency band for 4G.
But nobody could help me, there was one person that say i can give you a other simcard type maybe it will help. (I say how will it help if 4G works on a other phone with the same sim card, but let's just test it)
Afterwards the call, visited the shop for a other sim card
Doing the sim in slot 1 nothing changed, same 3G signal.
Was thinking this the last try and do the sim card in slot 2 and after 10 minutes i have LTE signal.
Trying slot 1 again but only 3G. changed back to slot 2 and solved.
Have earlier check slot 2 with me "older" sim card and only 3G was showing up.
I have noticed stock ROMs have better signals than say CM
88Gamer88 said:
It's working now
Have called Vodafone again for some extra information about the frequency band for 4G.
But nobody could help me, there was one person that say i can give you a other simcard type maybe it will help. (I say how will it help if 4G works on a other phone with the same sim card, but let's just test it)
Afterwards the call, visited the shop for a other sim card
Doing the sim in slot 1 nothing changed, same 3G signal.
Was thinking this the last try and do the sim card in slot 2 and after 10 minutes i have LTE signal.
Trying slot 1 again but only 3G. changed back to slot 2 and solved.
Have earlier check slot 2 with me "older" sim card and only 3G was showing up.
Click to expand...
Click to collapse
Same think, only H+ with Dutch Vodafone, put my SIM in slot 2 (hot swap) and immediately it turned on 4G :good:
(stock ROM 23s)
i have same issue in spain with x720 on simyo: no work 4g, only h+
i put on sim2 and nothing change
flammjager said:
i have same issue in spain with x720 on simyo: no work 4g, only h+
i put on sim2 and nothing change
Click to expand...
Click to collapse
You need to enter the APN settings for your provider's data coverage in the Mobile data section of Settings.
sk8223 said:
You need to enter the APN settings for your provider's data coverage in the Mobile data section of Settings.
Click to expand...
Click to collapse
apn is on and correctly
flammjager said:
apn is on and correctly
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Click to collapse
Are you on a custom ROM? Maybe it did something to the modem. If so, you need to return to a stock ROM and try.
The phone has all the bands it needs to work on your carrier, and my carrier as well. My SIM already had the APN settings for my carrier on it, and I connected to LTE right away on my x722. I'm on a vendor ROM, which is pretty much just stock eUI. I can't fathom why it doesn't work for you if you're still on stock. Have you tried the SIM in other phones?
I also have this problem in Romania with my LeECO Le Pro3, but with Orange 800,1800 and 2600Mhz. The only solution for this problem was to manualy search and select the 4G operator network. Although in settings/network operator it was on 4G/3G/2G(Auto) by default, my phone was stuck in H+/H/3G until i manualy search and select 4G. If you are sure your SIM is 4G and you have the corect APN you can try this but you will have to search and select for several times manualy to work. I find this solution very uncomfortable because every time you restart your phone or put it in airplain mode, you will have to repeat manual searches and register in 4G.
my x720 doesn't have the correct bands active. i activated them with qpst but only actived and running in sim2 (sim 1 actived but no gain lte signal)
ah! i'm on 20s
88Gamer88 said:
Hello,
I have the following problem: I can't get a 4G signal with my provider.
Vodafone Netherlands uses 800, 1800, 2600 MHz for 4G connection.
I have bought my telephone at flosmall . com
It should work, or do I forget something?
Can somebody explain this?
Click to expand...
Click to collapse
Do you own the X722?
Hello, I have problem with 4G, with Android 8.1
When I back Android 8.1 I have 4G Signal.
---------- Post added at 09:09 PM ---------- Previous post was at 08:57 PM ----------
Hi, after I install All Android custom 8.1
I try install android 7.1 (AICP 12.1) I have LTE Signal
When I back Android 8.1 and select Only LTE, I don't have any signal (4g,3g etcc) I have chage to "Global" and I have H+ signal

Note fe won't get 4g lte. 3g only.

Hi there! My note fe can only get 3g. My model is n935k and I am a current an ATT user. I tried to force the phone to LTE only but when I did that, the phone was totally out of service. No network and no call service. I thought note fe LTE band will be worldwide, so is there any setting that I missed?
Tim007super said:
Hi there! My note fe can only get 3g. My model is n935k and I am a current an ATT user. I tried to force the phone to LTE only but when I did that, the phone was totally out of service. No network and no call service. I thought note fe LTE band will be worldwide, so is there any setting that I missed?
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Click to collapse
1. make sure your APN is ATT Nextgenphone (should have been auto-configured when you booted phone the first time) 2. Try reseting your network settings (this will remove bluetooth and wifi settings) settings->general management->reset->reset network settings and/or 3.Call ATT and make sure your account is (still) provisioned for LTE. i have the same model as you do and have no problem getting LTE service. picture below shows i'm connecting to LTE Bands 2, 4, 5 & 17.
I reset the network setting and still doesn't work. The apn is nextgenphone.
cortez.i said:
1. make sure your APN is ATT Nextgenphone (should have been auto-configured when you booted phone the first time) 2. Try reseting your network settings (this will remove bluetooth and wifi settings) settings->general management->reset->reset network settings and/or 3.Call ATT and make sure your account is (still) provisioned for LTE. i have the same model as you do and have no problem getting LTE service. picture below shows i'm connecting to LTE Bands 2, 4, 5 & 17.
Click to expand...
Click to collapse
May I see your apn setting?
fellow note fe user in north america here.
no issue with lte. but @cortez.i what LTE log app is that? and also how did you customize your icons on the status bar?
LTE Discovery from the play store... Substratum theme for Samsung (Swift Dark) for icons.
Tim007super said:
May I see your apn setting?
Click to expand...
Click to collapse
It's the same as on att website. Pic attached
cortez.i said:
It's the same as on att website. Pic attached
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Click to collapse
I tried ways you told me and the phone is still connected to 3g
cortez.i said:
It's the same as on att website. Pic attached
Click to expand...
Click to collapse
And I have tried some app like force phone to switch to lte. After forcing the phone to lte, the phone signal is lost and become emergency call only.
I had the same exact problem and I'm also on AT&T. Restarting the phone fixed it, at least for now.
mb523 said:
I had the same exact problem and I'm also on AT&T. Restarting the phone fixed it, at least for now.
Click to expand...
Click to collapse
sigh, I restarted it and it still showed 3g
Tim007super said:
sigh, I restarted it and it still showed 3g
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Click to collapse
if you haven't done this already, consider trying another SIM. I'd also post screen shots of your configurations; could be something we've missed in our attempts to help you resolve your issues.

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