Database Users

serious issue on SGS-2 and 3g internet

i own a samsung galaxy s2 ordered from uk,
everything working fine except for this serious issue that i have been trying to resolve till now.
i have a monthly internet subscription from my carrier and it always been working fine on my iphone ( i mean here connecting through the 3g network ). but in the S2 .. i have to use Edge to be able to access the internet ( the mobile network mode must be set to GSM only ). whenever i switch the network mode to GSM\WCDMA auto , the 3g icon appears but when it tries to connect to internet, the phone automatically switch to Flight mode and i loose the network signal. and this happens all the time. till now i am only able to connect to the internet by switching the mobile network mode to GSM only which only uses Edge network .
i have tried every possible thing to resolve this issue but nothing worked for me. please help

What country are you in? What carrier are you on? What bands do they use?

location location location.
Where are you from?
And what frequency does operators in your region operate.

just curious, have you tried hard/factory reset?

i am from saudi arabia and i am using Mobily network.
mobily is using HSDPA network as well as Edge network.
i did a software reset and still the same issue.
phone information:
Baseband version I9100XXKDH
Kernel version 2.6.35.7--I9100XWKDD-CL161513
Build Number GINGERBREAD.XWKDD

crazy idea - is there any blocking going on in SA or with that carrier? Have you used another not carrier supplied smartphone successfully on that network?

I have been always using their 3g network on my iphone. And still there network only on edge connection on the s2. What i have noticed is that the saved apn sometimes shows up and sometimes disappears

omnia_owner said:
i own a samsung galaxy s2 ordered from uk,
everything working fine except for this serious issue that i have been trying to resolve till now.
i have a monthly internet subscription from my carrier and it always been working fine on my iphone ( i mean here connecting through the 3g network ). but in the S2 .. i have to use Edge to be able to access the internet ( the mobile network mode must be set to GSM only ). whenever i switch the network mode to GSM\WCDMA auto , the 3g icon appears but when it tries to connect to internet, the phone automatically switch to Flight mode and i loose the network signal. and this happens all the time. till now i am only able to connect to the internet by switching the mobile network mode to GSM only which only uses Edge network .
i have tried every possible thing to resolve this issue but nothing worked for me. please help
Click to expand...
Click to collapse
Hi, very similar issue here.
For this four days since I have got my GS2 everything was just fine. The data connection and 3G speed was great. Yesterday, all of the sudden all got crappy. Could not display any web pages. It starting to display page but after few seconds pop-up window appear which say "Data connectivity problem. The server failed to communicate. Try again later"
Interesting that my gmail, market, xda app working fine as normal.
I'm in Ireland on O2 now.
Baseband version I9100XXKDH
Kernel version 2.6.35.7--I9100XWKDD-CL161513
Build Number GINGERBREAD.XWKDD
Can someone help to solve the problem, please. Is it possible that something with the hardware is wrong? Broken?
I'll perform the factory reset and will let you know.

i just managed to flash my device with the latest EXE1 dated May 3.
and i am still facing the exact same problem.

omnia_owner said:
i just managed to flash my device with the latest EXE1 dated May 3.
and i am still facing the exact same problem.
Click to expand...
Click to collapse
Maybe we should ask for replacement...

I have same issue, and for Ihrrob, your other application are working fine because what i noticed on my mobile that 3G & 2G connection is there but not permenant that's why WIFI hotspot always disconnect and VOIP applications are not working.

Hassanalaa said:
I have same issue, and for Ihrrob, your other application are working fine because what i noticed on my mobile that 3G & 2G connection is there but not permenant that's why WIFI hotspot always disconnect and VOIP applications are not working.
Click to expand...
Click to collapse
You are right the 3G/2G connection is there but not permanent.
If I press the Internet icon the home page, which is 'Google' appears (sometimes) immediately. I think this is because the page is very light. If I try to open a regular page it loads 1/3 of the content or nothing.

i just hope it is a software bug not a hardware problem

Type on the dialpad *#*#4636#*#* and force the phone to HSDPA only on the dropdown menu. This is a hidden menu on the phone.

Isn't this carrier related?

amtrakcn said:
Isn't this carrier related?
Click to expand...
Click to collapse
Unfortunately not.
I have spoke to the rep in the store. They reset all settings for me but it didn't help.
Just to double check if he wasn't wrong I've put the sim card in to my N900 and all data worked fine.
Bad, bad...

omnia_owner said:
i am from saudi arabia and i am using Mobily network.
mobily is using HSDPA network as well as Edge network.
i did a software reset and still the same issue.
phone information:
Baseband version I9100XXKDH
Kernel version 2.6.35.7--I9100XWKDD-CL161513
Build Number GINGERBREAD.XWKDD
Click to expand...
Click to collapse
I'm on Mobily network in Riyadh, and 2G/3G is working fine for me. I stay on 2G most of the time to save battery, but have tested 3G and got around 3mbps.
I have the same Baseband, Kernel and Build number (rooted)
Are you using "Market Enabeler"? It can change your APN settings, and you need to restore the provider setting.

just rooted my device.
still same weird issue.
issue again: simply whenever my device tries to connect to H+ , the device automatically enters flight mode and automatically disable flight mode so that the signal bars come back without H+ and when i check back the saved APN i see nothing there ( thought i was there before ). and this strange behavior disappears when i switch the mode from GSM/WCDMA auto TO GSM only .. after i do this the device connects regularly to Edge network and i can browse the net.
so basicaly for me i will be only able to use the device on Edge instead of HSDPA or 3G.
im really hoping for help from here because i don't think i will find any help outside of this expert community.
regards

try to make it on obligatory 3G (WCDMA only) and check if the problem still there ..

still same problem juffo
i have noticed that another post are poping up talking about almost the same issure.
i hope a new firmware will fix this

reply plz

i have 3g sim its service provider "zain KW"
work of sim only is to run internet
in aurora ics how does 3g connect.

sorry man , u aren't clear . can you be little more descriptive . i means what problem are you facing with 3g?

waseemkhan said:
i have 3g sim its service provider "zain KW"
work of sim only is to run internet
in aurora ics how does 3g connect.
Click to expand...
Click to collapse
[offtopic]You also could consider better title for your topic.[/offtopic]
About your problem, there should be nothing special to use internet with 3G.
Like "Saunalahti" users maybe you should tick "roaming" on in the settings menu.

plz check and reply
i have installed aurora 2.10 and also with new kernel test 2.10.
i have always two problam
one problam with 3g sim
but i couldn't understand yet why my 3g sim is not connecting with internet
i have already checked all options.
Second problam in 2g sim
It does not give service provier name "no service" on status bar.
signal bar colour always white when i connect wifi then signal bar colour is changed into the gray colour.but my main issue is 3g sim which not running internet and rebooting again and again while setting.

waseemkhan said:
i have installed aurora 2.10 and also with new kernel test 2.10.
i have always two problam
one problam with 3g sim
but i couldn't understand yet why my 3g sim is not connecting with internet
i have already checked all options.
Second problam in 2g sim
It does not give service provier name "no service" on status bar.
signal bar colour always white when i connect wifi then signal bar colour is changed into the gray colour.but my main issue is 3g sim which not running internet and rebooting again and again while setting.
Click to expand...
Click to collapse
the best thing for you to do right now is to first check the sim on any other handset . it would just take few minutes . i am saying this because your problem is pretty weird and i think problem is without your sim . have u tried any other rom ?

didn't work yet
yes i have already checked official it's also show same problem,and
Sim is working also in usb stick.
Can you explain about apns setting?

Another hint is the APN settings. I recall I have 1 SIM which is only data and can be used in 3G USB provided by carrier. But when I put this "data-sim" into my U8800, it doesn't work, tho it recogonizes the carrier name but not able to connect to the internet at all.
It turns out I have to rename the APN to another one if you use a 3rd party 3G internet device. Hope this helps...

[Q] problem on 2g network[SGY]

why sometime when i try to active data it does not show the icon on status bar? , BTW i try to switch plane mode n turn off back .but still does not work..can anyone solve my problrm plz .

wanyakuza said:
why sometime when i try to active data it does not show the icon on status bar? , BTW i try to switch plane mode n turn off back .but still does not work..can anyone solve my problrm plz .
Click to expand...
Click to collapse
Sometimes its due to carrier.You can try changing your kernel.

san122 said:
Sometimes its due to carrier.You can try changing your kernel.
Click to expand...
Click to collapse
wht u mean by carrier?

wanyakuza said:
wht u mean by carrier?
Click to expand...
Click to collapse
carrier = the network operator you are signed to - the company you pay your phone bill to
you wont get 2g if
you have not enabled 2g in phone settings/your phone is not set for 2g in apn settings (you can force only 2g network connection if you dont have 3g)
your carrier doesnt support 2g (my carrier only supports 3g and 4g)
you have no signal
you dont have imei (dial *#06# and it will show your imei - if it is blank you have lost imei and need to change rom/kernel/flash ril fix)
you dont have a 2g data plan

marcussmith2626 said:
carrier = the network operator you are signed to - the company you pay your phone bill to
you wont get 2g if
you have not enabled 2g in phone settings/your phone is not set for 2g in apn settings (you can force only 2g network connection if you dont have 3g)
your carrier doesnt support 2g (my carrier only supports 3g and 4g)
you have no signal
you dont have imei (dial *#06# and it will show your imei - if it is blank you have lost imei and need to change rom/kernel/flash ril fix)
you dont have a 2g data plan
Click to expand...
Click to collapse
but in my apn setting it show 'maxis 3g internet' which mean this support on 3g or both?

wanyakuza said:
but in my apn setting it show 'maxis 3g internet' which mean this support on 3g or both?
Click to expand...
Click to collapse
only your provider and you will know what services you get
2g is near enough obsolute where I am when it comes to internet - only calls still remain on some networks on 2g - you will have to contact your carrier provider

marcussmith2626 said:
only your provider and you will know what services you get
2g is near enough obsolute where I am when it comes to internet - only calls still remain on some networks on 2g - you will have to contact your carrier provider
Click to expand...
Click to collapse
BTW , i want to ask u why when i was flash bacem tweak n change the volt , it still does not effect my battery..?,n when i check terminal emulator it show not found

wanyakuza said:
BTW , i want to ask u why when i was flash bacem tweak n change the volt , it still does not effect my battery..?,n when i check terminal emulator it show not found
Click to expand...
Click to collapse
i dont use it - maybe it requires busybox or the kernel doesnt support it
custom kernel maybe undervolted anyway so there probably isnt much point to it

SM-N9005 doesn't switching back to 4G

any can help, my NOTE 3 doesn't switching back 4G from 3G ,i have to restart the phone,then 4G back . i m on VODAFONE UK ,i did change the new sim card,but the problem is the same .
CSC : N9005DBTENB2
thank you so much

chg1282002 said:
any can help, my NOTE 3 doesn't switching back 4G from 3G ,i have to restart the phone,then 4G back . i m on VODAFONE UK ,i did change the new sim card,but the problem is the same .
CSC : N9005DBTENB2
thank you so much
Click to expand...
Click to collapse
Possibly more of an Network issue than a phone issue, if it does it again, try switching to Airplane mode or toggle data on/off see if it works.
EDIT: I had data drop outs on my N3 and still have them on my N5, from what I can gather drop outs are a 4.4.2 issue. But as I said, it's possible it's your actual network also (PS: I have Three UK and O2)

radicalisto said:
Possibly more of an Network issue than a phone issue, if it does it again, try switching to Airplane mode or toggle data on/off see if it works.
EDIT: I had data drop outs on my N3 and still have them on my N5, from what I can gather drop outs are a 4.4.2 issue. But as I said, it's possible it's your actual network also (PS: I have Three UK and O2)
Click to expand...
Click to collapse
i did try it switching to Airplane mode or toggle data on/off but nothing work . when i m on 4G make a phone call after call and it will switching back 4G . and did Factory / Hard reset the phone ,just same .......and after change new sim card from vodafone when i connect my home wifi it asked me password again for wifi ,is that normal ?

chg1282002 said:
i did try it switching to Airplane mode or toggle data on/off but nothing work . when i m on 4G make a phone call after call and it will switching back 4G . and did Factory / Hard reset the phone ,just same .......and after change new sim card from vodafone when i connect my home wifi it asked me password again for wifi ,is that normal ?
Click to expand...
Click to collapse
4G/LTE doesn't work during phone calls as the UK does not have LTE calling yet. so that behaviour is normal, I'd put it down to a network issue if it's not switching automatically after a call is placed.

radicalisto said:
4G/LTE doesn't work during phone calls as the UK does not have LTE calling yet. so that behaviour is normal, I'd put it down to a network issue if it's not switching automatically after a call is placed.
Click to expand...
Click to collapse
the phone is european model original from germany,do i really need do the Network operator search ? but i did and set it to automatic . i try manual it too,but doesn't work ........
maybe time to thinking about leave vodafone because paid for 4G service and get very bad service ,normal in my flat i had two bar of 4G .
cheers

Why do i have always H+ indicator instead of 4g/4g+

Hey,
I have s8 g950f rooted with renovate ice 11.1 and velocity kernel installed on my device.
My problem is , that almost everywhere i am the signal indicator shows only H+ and not 4g/4g+.
My sim card is 4G, my plan is 4G too ..
I do not know what the problem is, i checked the APN settings through my carrier and all seems to be good, also there is no save power enabled on the phone.
I tried multiple times to do format, or flash again the rom but nothing changed.
Another trick i tried is to flash a CSC Selection 2.0 for G950F S8 for my country, also nothing has changed.
Another issue i step into is that when i enable LTE only on the sim settings is i cannot call someone neither someone, and i cannot connect to the internet with my plan .
If anyone knows the solution to all this please REPLY to me to see your answer faster. Thanks in advanced :good::good: