Hello Everyone
I have Galaxy S3 i747m from Rogers. I went to Europe for holidays. I unlocked my phone in Poland. After that phone was working ok but internet was very slow. It was working on Edge although everywhere was LTE range. I was changing carriers-sim cards but was the same problem. Then I went to UK. There my phone stopped reading any network especially when I was in the building. My current carrier is O2. My phone sometimes says not registered on network or says nothing. I have no connection at all. I dont know what to do now.
I flashed a new rom from this forum Hyperdrive which is nice but it didnt change anything. I was also installing those two files ..modem_XXDME4__ and modem+ddemg2 but my phone stopped working at all. So I had to format and flash a rom again.
Please help me guys because I want to destroy this phone with an AXE. I give up.
Not sure what the situation is in Europe, but I had a similar problem when I bought an unlocked i747M and attempted to use it on my AT&T network in the US.
Phone calls were fine, but way slow data connectivity.
US LTE does not support International/Canadian phones. Something with the modem and bands used here vs Canada.
Might be the same situation where you are. The modem may not be compatible with the European network bands.
I know DocHoliday77 helped me with mine. He made it very clear you CAN NOT change the modem version. I have the US version now and all is fine.
That's the only thing I can think of too tbh. That or something is corrupt or there's some sort of hardware issue. Sorry, I know that doesn't help much.... Hopefully someone else may have thoughts to add...
Sent from my SAMSUNG-SGH-T999 using Tapatalk
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Hi,
I bought a Samsung Galaxy S in the states tha was unlocked. Everything worked fine, but I only used the original provider who was at&t. Now I'm in Spain, and Ingot a data plan with Movistar. Calls and messages work fine, as well as the internet as long as I have wifi. The 3g doesn't work, and it is a problem of the phone because I've tried the SIM card on other phones and it works fine. I've tried unlocking the phone again and nothing changes, I need help pleaseeeee! Idk what to do and I can't afford to buy a new phone right now.:crying:
Thanks for your help!!!!!!!!
Felixsanz said:
Hi,
I bought a Samsung Galaxy S in the states tha was unlocked. Everything worked fine, but I only used the original provider who was at&t. Now I'm in Spain, and Ingot a data plan with Movistar. Calls and messages work fine, as well as the internet as long as I have wifi. The 3g doesn't work, and it is a problem of the phone because I've tried the SIM card on other phones and it works fine. I've tried unlocking the phone again and nothing changes, I need help pleaseeeee! Idk what to do and I can't afford to buy a new phone right now.:crying:
Thanks for your help!!!!!!!!
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Are you sure its a GSM network? As far as I know, the galaxy s is incompatible with cdma networks. I could be wrong tho.
Sent from my LG-P930
Movistar in Spain uses GSM, not CDMA, but the bands are not the same for 3G, that'e your problem. You won't get 3G on Europe, only in the US with AT&T, Canada with almost any carrier, and any country from Mexico to Argentina.
Maybe in Australia/India you can have 3G, I don't know, but there are some members with a Glide from India, they can answer this better than me.
Thank you, I'm stupid, I should havechecked that before buying the phone
rani9990 said:
Are you sure its a GSM network? As far as I know, the galaxy s is incompatible with cdma networks. I could be wrong tho.
Sent from my LG-P930
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On the samsung galaxy s captivate it says:
Network Technology EDGE, GSM, HSDPA, UMTS
Does that change anything?
Felixsanz said:
On the samsung galaxy s captivate it says:
Network Technology EDGE, GSM, HSDPA, UMTS
Does that change anything?
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Click to collapse
I think I may have good news for you, check this:
http://www.unlockit.co.nz/mobilesettings/settings.php?id=27
There's a good chance you have to set the APN settings manually, the above link shows you how to do this. These are the settings that tell your phone how to get onto the data network, if those are not already in the phone or set automatically. Give it a try, your problem has occurred more often and this was the solution!
Setting the APN manually should get internet working, but since the phone doesn't support the bands needed for 3G in Spain, that won't solve the 2G only problem. Still, working 2G data should make it at least fairly usable until you acquire a phone that supports your local bands.
Perhaps not in Spain then, but it works elsewhere in Europe. I live in The Netherlands and I get 3G. Haven't looked into the frequency bands, but it all works perfectly here. There are several other European users here, and I've never read anything about not having 3G because of frequency band issues.
Sent from my SAMSUNG-SGH-I927R using xda app-developers app
Evil Alex said:
I think I may have good news for you, check this:
There's a good chance you have to set the APN settings manually, the above link shows you how to do this. These are the settings that tell your phone how to get onto the data network, if those are not already in the phone or set automatically. Give it a try, your problem has occurred more often and this was the solution!
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Click to collapse
that was awesom man I did exactly what you told me and the 3g started working right away! I wish I could hit the thanks button more than once!
You're welcome, enjoy your awesome phone
Sent from my SAMSUNG-SGH-I927R using xda app-developers app
Hey everyone, I managed to get an SGH-i317. I live in Italy, thus I had to unlock it - through the hidden menu in Android 4.1.1 - to actually make use of it. Now everything radio-related works fine, except for the fact I can't get 4G LTE internet connection. The phone will only reach H+.
I recon this is a problem with i317's modem, as it probably can only interface with AT&T's 4G band, and my guess is using an N7105 modem might address this issue... assuming it is possible to flash an N7105 modem on a i317 with no hassle.
Now, I've tried to look for something about his topic, but the vague answers I found only confused me even more. Might I ask for help, mates?
Cheers.
OthrandorEvel said:
Hey everyone, I managed to get an SGH-i317. I live in Italy, thus I had to unlock it - through the hidden menu in Android 4.1.1 - to actually make use of it. Now everything radio-related works fine, except for the fact I can't get 4G LTE internet connection. The phone will only reach H+.
I recon this is a problem with i317's modem, as it probably can only interface with AT&T's 4G band, and my guess is using an N7105 modem might address this issue... assuming it is possible to flash an N7105 modem on a i317 with no hassle.
Now, I've tried to look for something about his topic, but the vague answers I found only confused me even more. Might I ask for help, mates?
Cheers.
Click to expand...
Click to collapse
Confirming my thought, the i317 works on LTE bands 17 and 4, while in my country LTE is only on bands 3, 7 and 20 - which the N7105 supports.
[UPDATE] I just tried flashing an N7105 modem on my i317... no signal whatsoever, reverted back to AT&T...
Any help?
Hello everyone.
I'm sorry if i write bad English because I'm not really good at it. Sorry in advance.
I have a ATT Note 2 which i bought from a friend and i unlocked it by using the free method from the forms.
When i first unlocked it my phone went to lte signal and my data was working fine and i was getting lte speeds.
I made a phone call which usually drops the single to HSPA+ aka 4g/3g but for some reason my phone doesn't go back to lte after.
I even called t-mobile they said they see my phone was on lte but they don't know why it's not going back to lte.
If anyone here running Tmobile sim in Att note 2 and still getting lte speeds after phone call is made please provide me some instructions as because I've tried everything possible i can from the forms. I've been trying for almost more then 3 to 4 months i still haven't found any solution to this problems.
If anyone can help me out that will be great.
Thank you and sorry for my bad English.
That's odd, mine is unlocked and I use Tmobile but I dont have those problems... maybe it's the modem, could be reception... sorry to head you're having issues dude.
FREE BUMP
justforgot said:
Hello everyone.
I'm sorry if i write bad English because I'm not really good at it. Sorry in advance.
I have a ATT Note 2 which i bought from a friend and i unlocked it by using the free method from the forms.
When i first unlocked it my phone went to lte signal and my data was working fine and i was getting lte speeds.
I made a phone call which usually drops the single to HSPA+ aka 4g/3g but for some reason my phone doesn't go back to lte after.
I even called t-mobile they said they see my phone was on lte but they don't know why it's not going back to lte.
If anyone here running Tmobile sim in Att note 2 and still getting lte speeds after phone call is made please provide me some instructions as because I've tried everything possible i can from the forms. I've been trying for almost more then 3 to 4 months i still haven't found any solution to this problems.
If anyone can help me out that will be great.
Thank you and sorry for my bad English.
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I'd verify the APN and make sure you have the most recent modem flashed.
CharliexCharger said:
I'd verify the APN and make sure you have the most recent modem flashed.
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Click to collapse
First things first, what solutions have you tried? If we don't know what you've tried it won't help much. Also what method did you use to unlock it?
If you used the free unlock then you have the J2 modem - that's the earliest stock AT&T modem. Since you were able to downgrade, I'm assuming you can upgrade too. Depending on your location (whether t-mobile is using the refarmed AT&T bands or using their own) you can use the latest modem or you can search for a t-mobile modem.
But speed is what matters, not what icon is displayed. Check the phone status under the settings menu to see the actual network type you're connected to.
I have a ATT sgh-i747 4.4.2 KitKat unlocked and I use for Carrier Claro PR the connection to 4G lost in a few minutes from start up I can not do a call or use internet only wifi, I put apn from Claro PR LTE but nothing, I go to ServiceMode and in band selection are in Automatic I change to GSM all and works but in edge network for internet too slow but I can do any call, then I change to WCDMA all but not work I use WCDMA 850mhz only this works 4G, I use LTE all but only internet connection, what I can do to have all connection works including LTE. Thanks, if someone can help me will be apreciate.
Did it ever work properly on that carrier. If so, when did this start, and did you do anything to the device (flashing, modding, etc) just before it started?
DocHoliday77 said:
Did it ever work properly on that carrier. If so, when did this start, and did you do anything to the device (flashing, modding, etc) just before it started?
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HI Doc thanks for respond, I bought this phone used and phone have version 4.3 with PhilipTouch Recovery but system not have root or SuperSU then I flash stock recovery to use the update.cfg rename it to.zip and now are 4.4.2 stock rom official but in 4.3 same issue with network, I copy from my fathers phone att s3 NVfiles with QPST and I flashed to mine and put again my imei but nothing, what do you really think what happened in you're experience?
Im not really sure, but since you bought it used you should check to make sure the imei isnt blacklisted.
Does your fathers S3 work on the same network? Try swapping SIM cards. Test your card in his device and your device with his card.
DocHoliday77 said:
Im not really sure, but since you bought it used you should check to make sure the imei isnt blacklisted.
Does your fathers S3 work on the same network? Try swapping SIM cards. Test your card in his device and your device with his card.
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Click to collapse
My fathers phone is from ATT network, but I put my imei from my broken phone Galaxy s3 and is not black listed and is from Claro PR Network but let me see if my father give me again his phone because he don't want any body touch it and i dont know if is unlocked, I had to beg, and it was a miracle that gave me the phone to extract from his phone the nvfiles last time, you know if I can try something else DocHoliday??? Thanks.:good:
If you changed the original IMEI that's exactly why you are experiencing problems.
Anything but the original one assigned to the device will most likely cause problems. Even if its from another device that's the same model.
Sent from my SGH-T999 using Tapatalk
So my brother gave my his old Sprint Galaxy Note 5, which he had unlocked so that I could use it on AT&T. We had to set up the new APN to work with GSM instead of CDMA. The issue is that it cannot access 4G bands, just 3G. There are some other minor issues as well, such as location based services. I was looking into flashing AT&T firmware onto the phone, but cannot seem to find a way to do it online. I may not have scoured hard enough, or it may not be able to be done.
Would anyone be able to shed some light on this for me? I would prefer not to brick the phone by attempting something when I clearly do not have enough information about the subject. Could it just be an APN issue? Or will the phone just be stuck on a lower speed band? Any help would be appreciated.
Thanks.
The modem will only be able to access the 3G network as AT&T uses different LTE bands then Sprint.
I just found that out a little earlier today. Forgot to delete this thread. Thank you for your reply though.
ZionMirem said:
I just found that out a little earlier today. Forgot to delete this thread. Thank you for your reply though.
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You might be able to force the network bands with an app. No promises.
Well crap, just got mine unlocked to do the same thing. Guess I'm better off selling it and getting the att version. Was hoping the N7 took off so people would dump their N5 but looks like people will be keeping it.
Sent from my SM-T810 using Tapatalk
ZionMirem said:
So my brother gave my his old Sprint Galaxy Note 5, which he had unlocked so that I could use it on AT&T. We had to set up the new APN to work with GSM instead of CDMA. The issue is that it cannot access 4G bands, just 3G. There are some other minor issues as well, such as location based services. I was looking into flashing AT&T firmware onto the phone, but cannot seem to find a way to do it online. I may not have scoured hard enough, or it may not be able to be done.
Would anyone be able to shed some light on this for me? I would prefer not to brick the phone by attempting something when I clearly do not have enough information about the subject. Could it just be an APN issue? Or will the phone just be stuck on a lower speed band? Any help would be appreciated.
Thanks.
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Click to collapse
It does support the AT&T LTE bands, call AT&T and have them put in the IMEI into the system to allow LET access. Since it's a Sprint phone it's not in their system as a 4G/LTE device. I got mine working but seems it has a difficult time getting into LTM mode, I have the correct APN setup and 3G works fine.