Database Users

galaxy tab 10.1 data roaming

i just bought a galaxy tab 4g from tmobile which i then unlocked successfully. I then took a sim that i have roaming from another country and insert it in the tablet. I try to roam on ATT and tmobile but neither worked. The data roaming setting is check. The sim has data roaming because it works in a phone and is roaming. Is there an issue with the device or the OS?

dondragon2 said:
i just bought a galaxy tab 4g from tmobile which i then unlocked successfully. I then took a sim that i have roaming from another country and insert it in the tablet. I try to roam on ATT and tmobile but neither worked. The data roaming setting is check. The sim has data roaming because it works in a phone and is roaming. Is there an issue with the device or the OS?
Click to expand...
Click to collapse
I have not tried Roaming with an international SIM on mine. I have a Rogers branded 4G Tab (really a 3G+), it is unlocked and has an AT&T SIM in it. I don't have an international SIM available to test if the roaming works, but I don't see why it shouldn't.
What I don't know is, if the Radio in Tmobile's version is different than that of Roger's.
Questions:
- Does your international SIM roam on Tmobile or AT&T in your phone?
- Does it roam on 2G, 3G, 3G+?
It's possible that your international SIM is only able to roam on AT&T and your tab may not have the band required... again, not knowing the difference in Radios between 2 versions. I'll google...
---------- Post added at 04:12 PM ---------- Previous post was at 03:48 PM ----------
Quick search shows this.
Rogers Branded Tab:
GSM Bands:850/900/1800/1900 MHz
HSPA Bands:850/1900/2100 MHz
T-Mobile Branded Tab:
Band (frequency):
850 MHz;900 MHz;1800 MHz;1900 MHz;
UMTS: Band I (2100);UMTS: Band IV (1700/2100);UMTS: Band V (850)
If i had to guess, i'd say your SIM is trying to to roam on AT&T UMTS, which probably won't work on T-Mobile's Tab. Trying forcing it down to GSM (2G), that should work.
Let us know...

[Q] 4 G LTE and 3G not working on Yureka

hi,
i bought a yureka, everything is great. its just that i'm unable to use 3G or LTE on my device.
it always shows edge. on my device. and runs 2G
in mobile networks preferred network type is LTE. and i have LTE service in my area.
on phone info *#*#4636#*#* By default the preferred network comes as LTE/GSM auto(PRL) and network type shows EDGE.
i have tried changing the preferred network to WCDMA preferred, then radio on/off, still network type shows as EDGE.
i have unlocked the boot loader and then flashed the modem (NONHLOS.bin) from Rohan A joshi thread in XDA yu yureka.
still im unable to use 3G or LTE.
the SIM is perfectly fine, if i put the SIM in some other phone like iphone, everything works fine.
can someone please help me i will be thankful.

Try WCDMA Only
---------- Post added at 01:38 PM ---------- Previous post was at 01:38 PM ----------
Or disabling one sim which isn't meant for internet

I am also having the same problem only edge,and phone info shows as "gsm only " no matter what I do its not changing to wcdma or any other options help
Sent from my AO5510 using Tapatalk

N'ayam Amarsh'e said:
Try WCDMA Only
---------- Post added at 01:38 PM ---------- Previous post was at 01:38 PM ----------
Or disabling one sim which isn't meant for internet
Click to expand...
Click to collapse
tried , but didnt work.

tommy2601 said:
I am also having the same problem only edge,and phone info shows as "gsm only " no matter what I do its not changing to wcdma or any other options help
Sent from my AO5510 using Tapatalk
Click to expand...
Click to collapse
incase you find the fix, please let me know also...

In my phone I also do the same process on phone info *#*#4636#*#* By default the preferred network comes as LTE/GSM auto(PRL) and network type shows EDGE.
i have tried changing the preferred network to WCDMA preferred, then radio on/off, still network type shows as EDGE.
still im unable to use 3G or LTE.
the SIM is perfectly fine, if i put the SIM in some other phone like iphone, everything works fine.
How to fix this problem?

pijus_cool said:
In my phone I also do the same process on phone info *#*#4636#*#* By default the preferred network comes as LTE/GSM auto(PRL) and network type shows EDGE.
i have tried changing the preferred network to WCDMA preferred, then radio on/off, still network type shows as EDGE.
still im unable to use 3G or LTE.
the SIM is perfectly fine, if i put the SIM in some other phone like iphone, everything works fine.
How to fix this problem?
Click to expand...
Click to collapse
no idea, im also still waiting for any reply

Partial solution found.... On LTE sim slot i. e. Sim no. 1 using *#4636#*#* and then select wcdma will change the network to 3g.
But 2nd sim the wcdma option not activate.

Same problem for me too
I'm also facing the same problem. Selecting WCDMA only option is not working. It always comes back to GSM only mode. End result no 3G and hence no internet. Only whatsapp is working. Should I ask for replacement. 10 days is not over for me yet..

Finally 3G actually work on YUREKA
Finally after lots of hit and trials I got solution.
Two things you need to do.
First
a.select default type as WCDMA only
b. enter *#*#4636#*#* from keypad.
c. Go to Phone Information and turn off radio.
d. Now select WCDMA only and click on turn on radio
Second
Delete ur APN settings and set the setting manually as per
your service provider. search setting on google.
Finally MY YUREKA WORKING ACTUALLY ON 3G NETWORK
Note : Preferably do all settings on SIM 1 inserted in LTE slot

WCDMA only
I did that. Fortunately this time I'm able to select WCDMA only. Device started working in 3G. Now when I go home, again 3G is gone.
Did that selecting WCDMA only again. 3G is back.
Every time I need to do this like selecting data connectivity/Wifi. I'm getting sick of this. Unfortunately 10 days period is also over

Finally 3G working..
Hey Guys,
If anyone here still facing problem with the 3G connection.
Deactivate your Mobile Data Connection.
Try going to APN setting remove the Proxy Value and Port Value then Save it.
Finally, activate your Connection.
Its working for me.

This is not a bug
check on forum
that problem of APN

how to set a default network?
soodrohit said:
hi,
i bought a yureka, everything is great. its just that i'm unable to use 3G or LTE on my device.
it always shows edge. on my device. and runs 2G
in mobile networks preferred network type is LTE. and i have LTE service in my area.
on phone info *#*#4636#*#* By default the preferred network comes as LTE/GSM auto(PRL) and network type shows EDGE.
i have tried changing the preferred network to WCDMA preferred, then radio on/off, still network type shows as EDGE.
i have unlocked the boot loader and then flashed the modem (NONHLOS.bin) from Rohan A joshi thread in XDA yu yureka.
still im unable to use 3G or LTE.
the SIM is perfectly fine, if i put the SIM in some other phone like iphone, everything works fine.
can someone please help me i will be thankful.
Click to expand...
Click to collapse
hello,
i dialed in *#*#4636#*#* and got that menu the first time i turned off radio and selected wcdma only and turned on radio then rebooted.
i dont know why but it says no network available.
so i changed it back to lte/gsm after switching off radio and then switched it back on. i got the network back still on 2g.
but now everytime i reboot it goes back to wcdma only and no network available..
how do i make lte/gsm the default network so that i dont have to keep switching networks when my phone boots up

soodrohit said:
hi,
i bought a yureka, everything is great. its just that i'm unable to use 3G or LTE on my device.
it always shows edge. on my device. and runs 2G
in mobile networks preferred network type is LTE. and i have LTE service in my area.
on phone info *#*#4636#*#* By default the preferred network comes as LTE/GSM auto(PRL) and network type shows EDGE.
i have tried changing the preferred network to WCDMA preferred, then radio on/off, still network type shows as EDGE.
i have unlocked the boot loader and then flashed the modem (NONHLOS.bin) from Rohan A joshi thread in XDA yu yureka.
still im unable to use 3G or LTE.
the SIM is perfectly fine, if i put the SIM in some other phone like iphone, everything works fine.
can someone please help me i will be thankful.
Click to expand...
Click to collapse
I have had this problem too in a while. But I guess it go resolved somehow.
First there is SIM 1 which is only good enough to run 3G or LTE networks.
I tried a lot to run it.
Sometimes switching on and off the airplane mode gave me the 3G connection.
Not sure about LTE, the national capital still doesn't support LTE.:good:
Give it a try!

Guys first of all you need to know that only SIM 1 supports 4G LTE.
and both sim slots supports 3G but you need to get activate 3G Services on your number.
i am using 3G of Aircel and its working fine for me(Sim2).

pijus_cool said:
Partial solution found.... On LTE sim slot i. e. Sim no. 1 using *#4636#*#* and then select wcdma will change the network to 3g.
But 2nd sim the wcdma option not activate.
Click to expand...
Click to collapse
I just changed to WCDMA only and 3g started working.
My issue was 3G will work for a day then changes to 2G. Then I have to remove the sim and change slot for 3G to work. Will wait and see how long this will remain 3G.

Good 2 know
anuragk098 said:
Guys first of all you need to know that only SIM 1 supports 4G LTE.
and both sim slots supports 3G but you need to get activate 3G Services on your number.
i am using 3G of Aircel and its working fine for me(Sim2).
Click to expand...
Click to collapse
Hey Anurag, Can you please post the APN details of Aircel that you have on the Yureka? I have tried that *#*#46 etc and changing SIM from SIM1 slot to SIM2 slot. No difference. Still on EDGE.
Thanks,
Kiran.

Setting as mine:
Name: Aircel
APN: aircelgprs
MCC: 405
MNC: 810
APN type: default,supl
APN protocol: IPv4
APN roaming protocol: IPv4
if still not working go to your nearest aircel service station..
powerrangerkiran said:
Hey Anurag, Can you please post the APN details of Aircel that you have on the Yureka? I have tried that *#*#46 etc and changing SIM from SIM1 slot to SIM2 slot. No difference. Still on EDGE.
Thanks,
Kiran.
Click to expand...
Click to collapse

anuragk098 said:
Setting as mine:
Name: Aircel
APN: aircelgprs
MCC: 405
MNC: 810
APN type: default,supl
APN protocol: IPv4
APN roaming protocol: IPv4
if still not working go to your nearest aircel service station..
Click to expand...
Click to collapse
Thanks Anurag. There was some issue that even though it was same setting that I had, I still could not get 3G. Anyway, I upgraded to Lollipop and the problem has been resolved. Now I can get it to work on 3G Speed itself. Same APN "aircelgprs".

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
Click to expand...
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

network issue

After flashing cm11 I directly enter into the lollipop ROM and later to nougat ROM.Now I can't connect to a network for a time:crying:
I could connect to 3g network when I standing but if I sit it will lost ...
In 4g the network is perfect but I could not get or give a call.I used Idea airtel bsnl sim.I changed to various ROM like miui aicp Resurrection remix experience etc....
Please help me to solve it bros

Did u change GSM/WCDMA to GSM/WCDMA/LTE in sim mobile network settings

avi avinash said:
Did u change GSM/WCDMA to GSM/WCDMA/LTE in sim mobile network settings
Click to expand...
Click to collapse
Thanks for your reply
But that is not the problem
I switched between LTE gsm wdcma but it doesn't working.
I changed 5 sims in it.No change.And at last I came to stock ROM no change for now.
Some time I got network in some place only

install network signal guru from play store and lock the sim otherwise it keep changing to sim 1 and sim 2 and then in setting of that sim clear all forcings.....ur ploblem will be solved.....
best of luck

rajgabbar said:
install network signal guru from play store and lock the sim otherwise it keep changing to sim 1 and sim 2 and then in setting of that sim clear all forcings.....ur ploblem will be solved.....
best of luck
Click to expand...
Click to collapse
Tnx for your reply bro
But the problem is still remaining
I got good connection in 4G up to -104 db
But no connection in righter 2G & 3G in my phone
I can't place call due to the absence of volte in lenovo a6k
In my idea network
I believe that the devs can fix this problem
Tnx for the support

then dial *#*#4636#*#* and select first option and choose turn off radio and then select lte only option and again turn on radio and reboot
---------- Post added at 10:33 PM ---------- Previous post was at 10:32 PM ----------
if the problem persist then in the same menu go to settings and choose band options there......make sure right one is choosen there

Can't make or receive calls

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