Hi there,
Since a few days, I've got a serious problem with my SGS2, it randomly loss any networks, saying that the flight mode is on. I tried to flash with another firmware ( stock KE7) it change nothing.
Any idea?
This is a firmware issue with the modem. Mine did the same thing. KE7 modem is horrible. I flashed to KF2 modem and I don't have this problem anymore.
Sent from my GT-I9100 using XDA Premium App
i believe this is related to the network itself. for my 2 other phones before, whenever i am AUTO network Mode, many callers used to call me reporting 'My mobile was off'... also with S2 the same issue.
i switched to GSM mode only, LOSING my NETWORK Data SPEED, for this ..
i hope future firmware can solve this with as suggested above, Good RADIOS....
The problem is that i've already tested with another provider's simcard and i've got the same issue. I tried with some firmware (stock KE2, KE7, KF1, Litening 1.4) but it change nothing. I'm from france with 'Virgin" provider if this can help.
Leckmee said:
The problem is that i've already tested with another provider's simcard and i've got the same issue. I tried with some firmware (stock KE2, KE7, KF1, Litening 1.4) but it change nothing. I'm from france with 'Virgin" provider if this can help.
Click to expand...
Click to collapse
lets try to find solution together... i am totally on different network, Etisalat of UAE.
up to now, going to GSM Mode solves this issue but i loose "fast speed network"
I tried GSM Mode only but the issue is still the same.
Actually i'm on:
PDA: I9100XWKE7
PHONE: I9100XXKE4
CSC: I9100XEUKD1
Leckmee said:
I tried GSM Mode only but the issue is still the same.
Actually i'm on:
PDA: I9100XWKE7
PHONE: I9100XXKE4
CSC: I9100XEUKD1
Click to expand...
Click to collapse
i am currently on the same build... in fact i tried all previous builds and even KF1 & KF4 but all were the same
I have this problem with my WiFi network.
The title on this thread doesnt say which kind of network you are talking about.
Data network and phone, wifi network works perfectly.
hazem77 said:
i believe this is related to the network itself. for my 2 other phones before, whenever i am AUTO network Mode, many callers used to call me reporting 'My mobile was off'... also with S2 the same issue.
i switched to GSM mode only, LOSING my NETWORK Data SPEED, for this ..
i hope future firmware can solve this with as suggested above, Good RADIOS....
Click to expand...
Click to collapse
I'm on Orange UK and that happens to me quite often. It's something to do with the network and how it handles the switch from gsm to udma(I think, anyway). Sometimes the network doesn't fully recognize you've switched from one type to the other and reports your phone to be offline. It doesn't usually last long but if someone tries to call me during that time then I'll get a text message when the network catches up to tell me I've missed a call.
DVC1985 said:
I'm on Orange UK and that happens to me quite often. It's something to do with the network and how it handles the switch from gsm to udma(I think, anyway). Sometimes the network doesn't fully recognize you've switched from one type to the other and reports your phone to be offline. It doesn't usually last long but if someone tries to call me during that time then I'll get a text message when the network catches up to tell me I've missed a call.
Click to expand...
Click to collapse
exactly... thats what happens to me too. what do you think is the solution?
What is even worse is sometimes in the middle of a conversation it goes to flight mode!!!!!!!!!!!!!!!!
hazem77 said:
exactly... thats what happens to me too. what do you think is the solution?
Click to expand...
Click to collapse
I don't think the problem can be fixed on the user end. I had the same issues with a Nokia N80 and N97 mini before I switched to the SGS2. It's apparently a common problem that all networks sometimes have and the only way it'll ever really be fixed is if the networks improve how they handle the switch.
I think it also depends on where you live. If you get a constantly good 3G/H signal then in theory the phone should hardly ever need to switch to GSM mode, but if you live in an area where the signal is not so strong then it might switch more often which will cause the problem to be more severe.
You could of course try setting the phone to WCDMA only which will give you good speeds, but then if you drop out of 3G range you'll lose the ability to make & receive calls anyway. It unfortunately seems like a lose/lose situation.
As for the flight mode issue, I really have no clue what is causing that. Have you tried hard resetting and/or flashing new firmware?
hazem77 said:
What is even worse is sometimes in the middle of a conversation it goes to flight mode!!!!!!!!!!!!!!!!
Click to expand...
Click to collapse
Change your phone..
I had the same problem on my first SGS2..everytime when gsm/wcdma auto is selected..phone randomly looses internet connection and radio switches off. In gsm only mode..everything is fine. Got my second SGS2 and phone is perfect..no loss of data connection even in the worst coverage area..
You can read "serious issue on 3g" thread in the general forum and see if you are suffering same symptoms
Sent from my GT-I9100 using Tapatalk
DVC1985 said:
You could of course try setting the phone to WCDMA only which will give you good speeds, but then if you drop out of 3G range you'll lose the ability to make & receive calls anyway. It unfortunately seems like a lose/lose situation.
Click to expand...
Click to collapse
yeaa... thats what i am doing right now and it is working better...
...
@Iznee
i dont think changing the phone might be the issue, i had the same issue on IP4... it might be solved with future radios/ roms...
Related
hi i have a samsung galaxy s2 on three network and i have tried to go through there customer support but tbh what a load of rubbish the guy didnt understand what i was on about.
imageshack.us/photo/my-images/809/screenshotal.png
the image explains what i am on about. it says i have 3 bars of signal but when i try to call or text it will say mobile network unavailable.
i am using Villain ROM 2.4.2 baseband KH3 and Kernal ninph 2.0.5
what can i do to fix this? is it a mobile problem or a network prob?
thanks
borris234 said:
hi i have a samsung galaxy s2 on three network and i have tried to go through there customer support but tbh what a load of rubbish the guy didnt understand what i was on about.
imageshack.us/photo/my-images/809/screenshotal.png
the image explains what i am on about. it says i have 3 bars of signal but when i try to call or text it will say mobile network unavailable.
i am using Villain ROM 2.4.2 baseband KH3 and Kernal ninph 2.0.5
what can i do to fix this? is it a mobile problem or a network prob?
thanks
Click to expand...
Click to collapse
You need to ask the network if they are having problems .
Have you checked /remade your network settings ??
Could be a rom problem a modem problem a sim card problem or even a CSC problem with wrong settings .
Check settings clean sim card that does not help put your phone back to a warranty state flash stock rom and clear rom counter . Test if faulty take to a service centre .
jje
Im on 3 also i have had a few times the same problem mate, lets say maybe 4 or 5 times, it usually happens if i lose my internet connection it still shows me having signal but cant make a call or sms. i got no answer from 3 either
Check the status screen. I get this and when it happens where it should say T-Mobile it says Emergency Calls Only. I figured my SIM card was at fault so wedged some paper behind it to hold it in place and the problem has almost completely stopped.
Sent from my GT-I9100 using Tapatalk
Rub the terminals on the sim card with a rubber to remove any static build up
Sent from my GT-I9100 using XDA App
Are you guys running an I-9100T from 3? All modems from any rom you install won't work with the T. You'll need your stock KF4 modem.
Get it here:
http://forum.xda-developers.com/showpost.php?p=15885779&postcount=329
I had a similar problem. Read more about it here:
http://forum.xda-developers.com/showthread.php?t=1225849
tried going back to kf4 still no luck its only in certain places in me house where it does it everywhere else i have 1 or 2 or none at all bars of signal
3 customer service rang me up told them i wanted cancel the contract bcus of it. they knocked the contract price down from £30 to £25.75 for the text 500 plan with them. bit annoyed that i can only get signal in certain places of me house but cant argue on the price as well as gettin the phone for free
because 3 dont have a 2g network in the UK so if you dont have 3g coverage it will show a network signal but you cant make calls or sms
I'm having the same problem but with o2. I lose signal regularly at home as I live on the perimeter, but when I get signal bars back againwhen i go into town, it tells me that the network is unavailable. I have to switch off and on again to re register and then it works fine again until the next time the signal is dropped... It's annoying in the morning because i can wake up and see full signal on the phone all morning, but people are trying to contact me and not getting through because in reality, the network is not connected! I'm sure o2 have a 2g network, so I would presume it's a phone issue...
Hi all,
I live in France using SFR network and I get the same issue here using KI3 but I had the same problem with KH3.
the behavior on the phone is network seems to be good everytime/everywhere but sometimes people who try to reach me go directly to my voicemail and I receive sms with some delays.
When network works again, I mean I don't see it but I know it because I receive a couple of sms at the same time and a call from my voicemail
it means that my phone seems to be connected to the gsm network but is not, It loose the gsm network...
If you can give me your experience.
thx
I've got the same issue. (tacticman), I'm also on SFR network, i had this since KH3, never before. Now i'm on KI3, it's still here.
I always use CF-Root kernel, i tried to wipe, restore old backups, it does not change anything. I also tried GS II repair tools, nothing too...
The only thing I found to solve (temporarly) the problem, switch to offline mode (mode Hors ligne in FR) and then disable it.
But the problem occurs very often, it's very disturbing.
My IMEI number is still here.
I have galaxy s2 international version with AT&T ....some reason my internet connection on 3g is super super slow....I don't know why? I have tried all kind of stock and custom roms and kernels....anybody know why and have solution to fix this... I will really really appriciate....I can't take this anymore....right now I am on cm7.1 but still the same connection speed........anybody can suggest which rom or anything to do with it....please help me I really need it....I want to fix it....soon as I can....
try KL1 modem, it seems to have good speeds
i have everything on kl1 phone modem csc...it has increased little bit not that much....i don't know why....i might call at&t tomorrow and find out...whats going on....any other suggestion anyone who has this problem........thanks for replying....
thanks
I've read a thread about the fix for that.. look in the general section, i think it is there..
Sent from my GT-I9100 using xda premium
Hi all,
First time poster, long time follower!!
I'm hoping someone can help me here because i have a real headache with my galaxy s2.
When i got it at Christmas everything was perfect. But two weeks later i suddenly lost my 3g. Phone works fine on 2g (except for the slow speed), but i contacted my carrier 3Ireland and they said everything is fine on their end. My APN is perfect, i've tried toggling airplane mode, entering codes, data package checks. You name it and i've tried it.
When i force my phone to select 3g it looses all signal and i have to restart my phone and quickly go back into settings to choose 2g or i will loose signal again.
This is the following on my phone.
Android version 2.3.5
Baseband version I9100XXKI4
Kernel Version [email protected] #2
Build number GINGERBREAD.XWKI8
I've being reading about modem/radios lately, is that just the baseband? Could that be my problem. I'm a noob at this kinda thing.I just want my 3g to come back.
All help is greatly appreciated. Look forward to hearing from you all.
Thanks.
hallo dare said:
Hi all,
First time poster, long time follower!!
I'm hoping someone can help me here because i have a real headache with my galaxy s2.
When i got it at Christmas everything was perfect. But two weeks later i suddenly lost my 3g. Phone works fine on 2g (except for the slow speed), but i contacted my carrier 3Ireland and they said everything is fine on their end. My APN is perfect, i've tried toggling airplane mode, entering codes, data package checks. You name it and i've tried it.
When i force my phone to select 3g it looses all signal and i have to restart my phone and quickly go back into settings to choose 2g or i will loose signal again.
This is the following on my phone.
Android version 2.3.5
Baseband version I9100XXKI4
Kernel Version [email protected] #2
Build number GINGERBREAD.XWKI8
I've being reading about modem/radios lately, is that just the baseband? Could that be my problem. I'm a noob at this kinda thing.I just want my 3g to come back.
All help is greatly appreciated. Look forward to hearing from you all.
Thanks.
Click to expand...
Click to collapse
I having the identical issue on 3Ireland network. No 3G connection at all, only 2g. Changing radio version does not help either.
hallo dare, have you sorted this problem?
amigggooo said:
I having the identical issue on 3Ireland network. No 3G connection at all, only 2g. Changing radio version does not help either.
hallo dare, have you sorted this problem?
Click to expand...
Click to collapse
No joy mate. stuck on poxy 2g. I've tried absolutely everything. Diff sim, phone sent back to Samsung, everything. They all say there's nothing wrong with phone. So i'm lost. Please let me know if things work out for you and vice versa.
hallo dare said:
No joy mate. stuck on poxy 2g. I've tried absolutely everything. Diff sim, phone sent back to Samsung, everything. They all say there's nothing wrong with phone. So i'm lost. Please let me know if things work out for you and vice versa.
Click to expand...
Click to collapse
It would be interesting to know your SGS2 is white version as well as mine.
I have to say that I have another SGS2 but old black version which is perfectly functional on the same 3 network. After playing a very long times with both phones settings, I have a feeling that the core of the problem lies in the "APN type" setting. Changing it's content affects how it connects to network. I have no deep understanding of what is happening behind the scene while changing this option, but there is a possibility that the portion of file system responsible for it somehow been damaged.
It would be great if the developers could tell us if this part of the Android file system is changed while flashing different firmware/radio, or it is persistent?
amigggooo said:
I having the identical issue on 3Ireland network. No 3G connection at all, only 2g. Changing radio version does not help either.
hallo dare, have you sorted this problem?
Click to expand...
Click to collapse
Dial *#*#4636#*#*, go to phone information and see the settings for the radio. It should be at the bottom. Google the settings for the GSM, WCDMA. Mine is currently 'GSM auto PRL'. 'WCDMA Preferred'is also a better option for 3G network.
Sent from my GT-S5830 using xda premium
ace_viknesh said:
Dial *#*#4636#*#*, go to phone information and see the settings for the radio. It should be at the bottom. Google the settings for the GSM, WCDMA. Mine is currently 'GSM auto PRL'. 'WCDMA Preferred'is also a better option for 3G network.
Click to expand...
Click to collapse
Thank you. I fiddled with GSM, WCDMA settings as you said, but no luck.
What is even more interesting is if the network mode is set to "WCDMA only", then I'm not even able to register on 3 network. After an attempt to manually connect to 3 via "Network Operators" menu, it says "Unable to connect. Try later".
Also after connecting via WCDMA, and then reverting back to GSM, the GSM dies as well. The only solution is to restart the phone.
If it is a software bug, then I do not understand why this problem did not go away after flashing different Rom with radio.
amigggooo said:
Thank you. I fiddled with GSM, WCDMA settings as you said, but no luck.
What is even more interesting is if the network mode is set to "WCDMA only", then I'm not even able to register on 3 network. After an attempt to manually connect to 3 via "Network Operators" menu, it says "Unable to connect. Try later".
Also after connecting via WCDMA, and then reverting back to GSM, the GSM dies as well. The only solution is to restart the phone.
If it is a software bug, then I do not understand why this problem did not go away after flashing different Rom with radio.
Click to expand...
Click to collapse
exactly the same for me also, by the way i've a black version
Same problem
Same problem for me in Spain...
WTF happens with this Galaxy S2.First USB voltage problem and now no 3G/HSPA connection.
Any solution, plz??
Samsung: never again
guys....carriers can't sell a device that is advertised as a 3g capable phone. Call them and spit "misleading advertising" mixing "give me a phone that I can actually use" words. You could also add "Release me from my contract, I'm moving to other 3g WORKING carrier".
They'll just freak out.
---------- Post added at 09:16 PM ---------- Previous post was at 09:15 PM ----------
Jahngo said:
Same problem for me in Spain...
WTF happens with this Galaxy S2.First USB voltage problem and now no 3G/HSPA connection.
Any solution, plz??
Samsung: never again
Click to expand...
Click to collapse
It's a carrier problem, not a Samsung problem......
same problem
gastonw said:
guys....carriers can't sell a device that is advertised as a 3g capable phone. Call them and spit "misleading advertising" mixing "give me a phone that I can actually use" words. You could also add "Release me from my contract, I'm moving to other 3g WORKING carrier".
They'll just freak out.
---------- Post added at 09:16 PM ---------- Previous post was at 09:15 PM ----------
It's a carrier problem, not a Samsung problem......
Click to expand...
Click to collapse
First I must say that I love your signature about the gs2 plus
Back to Business, are you completely sure of this? I am having the same problems, no 3g anywhere I've tired 7 different ROMs 3 different kernels, every setting I could find I've toggled and no luck what so ever, I'm on a T-Mobile no contract plan and I have the black I have the international unlocked version
tech.central said:
First I must say that I love your signature about the gs2 plus
Back to Business, are you completely sure of this? I am having the same problems, no 3g anywhere I've tired 7 different ROMs 3 different kernels, every setting I could find I've toggled and no luck what so ever, I'm on a T-Mobile no contract plan and I have the black I have the international unlocked version
Click to expand...
Click to collapse
T-Mobile USA?
If yes, you're probably in a market that they have not yet re-farmed the 1900mhz frequency for HSPA+ yet. The i9100 doesn't get 1700mhz, and the majority of T-Mobile USA's network uses the AWS band, which requires both 1700 and 2100mhz to work for 3g/"4g".
I have searched Google but this problem seems to be unique to my sgs2.
I got my sgs2 from UK a week back. Its O2 branded with latest official firmware (2.3.3 and XXKE7), that's what see from phone info. I am using it on 2g network in Pakistan. The mobile works fine and connected to mobile network quickly after 1st boot. But after sometime, when i woke it up from sleep mode, it had lost mobile network connection and went to emergency calls only. This is continuing to happen everyday. I have noticed that it usually happens when the phone is turned on from prolonged sleep, esp in the morning when i wake it up. The network signals show full strength and it also searches all networks available but when i select my network it says , unable to connect try later. The only resolution is that i have to reboot the phone and it automatically selects the network. however that too doesn't work always and i have to reboot several time. Somebody suggested to kill Dialer and reconnect but it didn't help either.
Please help!!!
muhamadasim said:
I have searched Google but this problem seems to be unique to my sgs2.
I got my sgs2 from UK a week back. Its O2 branded with latest official firmware (2.3.3 and XXKE7), that's what see from phone info. I am using it on 2g network in Pakistan. The mobile works fine and connected to mobile network quickly after 1st boot. But after sometime, when i woke it up from sleep mode, it had lost mobile network connection and went to emergency calls only. This is continuing to happen everyday. I have noticed that it usually happens when the phone is turned on from prolonged sleep, esp in the morning when i wake it up. The network signals show full strength and it also searches all networks available but when i select my network it says , unable to connect try later. The only resolution is that i have to reboot the phone and it automatically selects the network. however that too doesn't work always and i have to reboot several time. Somebody suggested to kill Dialer and reconnect but it didn't help either.
Please help!!!
Click to expand...
Click to collapse
First update phone to newer version.
Second it might be a sim card problem. Especially if it is a very old card. Try with a newer card.
Report back.
Sent from outter space using a Gremlin for delivery!
muhamadasim said:
Please help!!!
Click to expand...
Click to collapse
Upgrade the firmware, but before this make a factory reset. If your phone is branded you can unbrand it if u want
KE7 is very old ( it was released like June) i remember i also had some problems with it, like random reboots and freezes hope it helps
Sent from my GT-I9100 using xda premium
thanks guys and really appreciate your feedback. i was quite worried since i had a lot better experience with xperia x10.
Can you guide me to the best/latest firmware that will also debrand my phone.
muhamadasim said:
thanks guys and really appreciate your feedback. i was quite worried since i had a lot better experience with xperia x10.
Can you guide me to the best/latest firmware that will also debrand my phone.
Click to expand...
Click to collapse
Pick your network/location
Stock Roms .and csc
http://forum.xda-developers.com/showthread.php?t=1075278
jje
follow the thread provided by JJE and follow Intratech's guide to debrand. make sure that important data have been backuped.
report back after the update if problem persists, but i do not think that it will
mariosraptor said:
follow the thread provided by JJE and follow Intratech's guide to debrand. make sure that important data have been backuped.
report back after the update if problem persists, but i do not think that it will
Click to expand...
Click to collapse
JJE/Mario: Guys I have come back after a while since It took me longer to flash the ROM. I have updated it with XXKG5 ROM that I found on Intertech post, but to my astonishment, my problem remains the same. Phone stays on "emergency call only" after wake up or when I move few miles from my place. Sometimes it stays on this mode throughout the day. Strangely, GPRS/Edge works, however I do not see the 2 arrows radio symbol in notification area.
Is my phone damned or there is any hope?
Same problem..
http://forum.xda-developers.com/showthread.php?p=21700974#post21700974
managed to fix it
http://forum.xda-developers.com/showpost.php?p=25509654&postcount=279
worked, but for how long?
nemesis666999 said:
managed to fix it
http://forum.xda-developers.com/showpost.php?p=25509654&postcount=279
Click to expand...
Click to collapse
that worked for me, but the problem had nothing to do with the imei number, if you look carefully. Also I think This is just temporary and it's going to revert back to emergency calls only. I'll let you know when that happens again
I am admittedly a noob when it comes to Android phones. I have had my i777 for a few months now and have successfully bricked it more than once. Having said that, I have found that the answers to my questions have always been on the board somewhere. I am having troubles figuring out where to go with this portion of the issue though. Having tried several different ROMs for my phone, I keep having the same issue. With any ROM, other than stock, I miss phone calls or text messages when my phone is locked and on Wi-Fi at home. If I'm out and about with my phone in my pocket and locked, it works normally. But, if I'm at home working at my desk and the phone is locked, I will not get text messages or phone calls. Notifications from apps like CNN continue, but nothing from the mobile network. I have followed the guide to return to stock and built my own jig that worked to reset my flash counter as I flashed before I read when I got the phone. (Former iPhone user that just assumed it was as easy as a jailbreak, really really dumb on my part)
I am a tech geek. I follow instructions well. I am sure the problem is with my phone and not the ROMs. My question for the forum, is where to begin troubleshooting the issue. I want to be able to use these ROMs.
Some info that may be helpful:
Baseband: I777UCKH7
Kernel: 2.6.35.7
I have tried the following in no particular order:
UCKK6-SHOstockV1.9.2noWipe
Serendipity_8.2
update-unnamed-v2.2.1-full
ICScrewD_2.1
TurkbeyRom-v33
Each has individual issues that I can deal with and learn to fix, but the phone issue I, obviously, cannot get past.
Have you set the phone to keep the wifi active when sleeping or locked?
Miami_Son said:
Have you set the phone to keep the wifi active when sleeping or locked?
Click to expand...
Click to collapse
No I have not. Does the wifi connection prevent the cell network from connecting?
cell network shouldn't disconnect at all if it is, swap it out could be bad phone. Also what is your signal level at your desk at home? Low signal normally causes missing of messages.
Puff3r said:
No I have not. Does the wifi connection prevent the cell network from connecting?
Click to expand...
Click to collapse
No, it doesn't.
Do you use any 3rd party apps like tasker?
When did this issue start? Perhaps there is an issue with the tower that serves your home. How strong is your cellular signal at home? I believe text messages (except MMS) are sent over the cellular network. Your being on wifi shouldn't matter (does being at home with wifi off and the phone locked still cause issues?).
I can't imagine other ROMs causing issues, though. If anything, they would mess up your data network only if they had the wrong APN settings for your area (for example, for a while, people using Unnamed didn't have data issues, except for a few like me who lived in certain areas with Cingular towers). Or maybe the stock modem files are better for you than the ones provided by the ROMs?
Maybe you have an old sim card that somehow has issues? You should be able to get a free one from at&t. Do you have another phone that you can test it with?
nh5 said:
cell network shouldn't disconnect at all if it is, swap it out could be bad phone. Also what is your signal level at your desk at home? Low signal normally causes missing of messages.
Click to expand...
Click to collapse
I keep a minimum of 3 bars and live near the center of a large city. As stated in the op, this is only happening on added ROMs never on stock. I have again reverted to stock (+root), since the op, and confirm that I am getting messages and calls at my desk at home with the phone locked.
****************************Edit for SoCaliTrojan post********************************************
I do not have any additional task managers installed, I've just always used the one built in. As for the SIM card, I am using the one that I got with the i777 at upgrade and get the 4G network when not on wifi, so I think I can rule it out. My wife has a Note that I have been drooling over, guess I will have to "borrow" it for "testing" when she gets home from work.
Also, I notice I am on baseband KH7 with Android version 2.3.4. I see mention of KK6 and 2.3.6 on the forums. I have avoided flashing the baseband, when possible, to keep from possibly bricking the unit. Is it possible that upgrading these could resolve the issue?
That is a very weird problem. Only thing I can suggest is compare the APN settings in root with a custom rom's settings. They should be identical, but check anyway.
Sent from my SGH-I777 using xda premium
Puff3r said:
As for the SIM card, I am using the one that I got with the i777 at upgrade and get the 4G network when not on wifi, so I think I can rule it out.
Click to expand...
Click to collapse
OK, I have to ask since seeing the above, do you have a plain SGSII or a SkyRocket?
Miami_Son said:
OK, I have to ask since seeing the above, do you have a plain SGSII or a SkyRocket?
Click to expand...
Click to collapse
It is branded GalaxySII on the back with model number sgh-i777.
Puff3r said:
It is branded GalaxySII on the back with model number sgh-i777.
Click to expand...
Click to collapse
Then it isn't connecting to 4G networks.
It's labeled as "4g" but really just multiple 3g connections to give you a faster overall speed. But you might want to just try getting a new sim card at your AT&T store, if that doesn't work, try a different modem (like KK6) the whole list/downloads are in the development section.
penguinlogik said:
It's labeled as "4g" but really just multiple 3g connections to give you a faster overall speed. But you might want to just try getting a new sim card at your AT&T store, if that doesn't work, try a different modem (like KK6) the whole list/downloads are in the development section.
Click to expand...
Click to collapse
I made AT&T upgrade me to a n LTE sim card. Our phone disent have LTE but the newer sim cards supposedly will make your speeds faster when LTE does come to your area due to it pushing HSPA+ faster than enhanced backhaul.
You said you live in the center of a big city maybe being surrounded by a lot of tall buildings could be causing havoc on your cell reception.I know at my work I can send and receive messages and calls everywhere except our breakroom but everyone else's phone works fine in the breakroom.
Sent from my GT-I9100 using xda premium
If I was wanting to pit a new modem on my sgs2 att phone what do I need to do?
Sent from my SAMSUNG-SGH-I777 using XDA
I have an unlocked unrooted S3 on Vodafone UK. This issue has been happening for the last few days whereby i have full 3G/H+ connection, but absolutely no data is working. No email, no websites loading, no whatsapp, nothing. The issue goes away as soon as I restart my phone, but then it comes back after a few hours.
Has anyone experienced this, and if so, how have you fixed it?
Go back to your network/phone provider .
Or flash different modem .
jje
I am having this issue too. I may be wrong, but i realise this happens if i turn off my Wifi, the 3G will not want to connect to the 3G network.. Anyone else having such problem?
By the way mine is International version (Location: Singapore)
I'm having a similar problem where I have a good 3G/H/H+ connection but data seems to drop intermittently across all applications - I get the same sort of error message in browsers/facebook/twitter that you receive when you have no signal.
Anyone have anything similar and know of any fix?
I am not having such issue so far. I been updating my SGS3 using over-the-air update. I guess the MODEM has been updated as well.
Go to market and download "fast dormancy"(by gorkhanmoral) then disable it and reboot.
Check if your speed has improved,if it got worse then enable it again.
U need ROOT to use this tool.
I it didn't help, then flash a different modem
This is good modem
Cwm flashable
flame1845 said:
I have an unlocked unrooted S3 on Vodafone UK. This issue has been happening for the last few days whereby i have full 3G/H+ connection, but absolutely no data is working. No email, no websites loading, no whatsapp, nothing. The issue goes away as soon as I restart my phone, but then it comes back after a few hours.
Has anyone experienced this, and if so, how have you fixed it?
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have you got any battery saving app like juice defender installed in your phone?
Is mobile data working at all? or is it constantly "uploading" but never "downloading" (up arrow lights but not down).
If what I just described is your issue then this is a network issue relating to android in general.
Basically your phone will be connected to two radio towers and gets confused as to which one it should use, rebooting or flight mode may help force it onto one tower or you may have to speak to your carriers "high network technical team" or whatever they are called for you to get them to force it onto one tower.
I had this issue on the HTC hero (a long time ago now) and it took 9 months for Orange UK to work out what was going on.
and it took 9 months for Orange UK to work out what was going on.
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Congrats. Orange Luxembourg (my gf's network provider) still hasn't got a clue.. But they seem rather clueless about everything except writing invoices.
Flashing an Asian modem on her S2 made the issue far less prominent since they seem not to get confused by antenna ping-pong. (Tango Luxembourg, my carrier, has this issue too in the main city)