Develop Bugs

[Q] Unlocked TMO N2 on AT&T data/gps issues

Hey guys, i recently purchased a used TMO Note 2 to replace my wife's AT&T N2 after she dropped it off the roof of her car. It came unlocked and works for the most part, but recently she's been complaining of slow or non-existent data and GPS taking forever to locate(If at all).
My initial plan was to root the phone and install new radios specific to AT&T. After reading through various postings, it looks like a lot of you have unlocked the TMO N2 for AT&T use and are having great success. Is rooting the best plan to improve the data connection? Are there other solutions I might try? What have you guys done to improve data on your unlocked N2?

SilverStone641 said:
Hey guys, i recently purchased a used TMO Note 2 to replace my wife's AT&T N2 after she dropped it off the roof of her car. It came unlocked and works for the most part, but recently she's been complaining of slow or non-existent data and GPS taking forever to locate(If at all).
My initial plan was to root the phone and install new radios specific to AT&T. After reading through various postings, it looks like a lot of you have unlocked the TMO N2 for AT&T use and are having great success. Is rooting the best plan to improve the data connection? Are there other solutions I might try? What have you guys done to improve data on your unlocked N2?
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im using tmobile note 2 on att network without any issue and lte works..do not flash att modem.it will not work,might even brick ur phone.only thing u need to do is to add lte apn.
go to mobile network setting and add apn.search online for att lte apn setting and just add that.

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mintu123 said:
im using tmobile note 2 on att network without any issue and lte works..do not flash att modem.it will not work,might even brick ur phone.only thing u need to do is to add lte apn.
go to mobile network setting and add apn.search online for att lte apn setting and just add that.
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howd u get lte to work ?are u actually att sim or straight talk on att?

bigfdaddy2 said:
howd u get lte to work ?are u actually att sim or straight talk on att?
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I actually bought it off Craigslist unlocked, so I'm not sure what method was used to make it work. I'm using the same ATT sim that we used in her previous phone.
I ended up going into the APN settings and restoring defaults. That seemed to improve her connection immediately. not sure if it'll stick, but time will tell.
Thanks for all the help guys!

Running T-mobile on ATT note 2

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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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.

Unlocked Sprint Note 5 issues.

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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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.

T-Mobile Stock Rom on SM-N9300?

Hey guys, long time xda user and flasher here. I bought the chinese/hk model N9300ZHU, I was wondering if I can somehow flash the STOCK T-Mobile firmware on it through ODIN or would I have to root it and just flash a rooted tmo Rom through TWRP instead of ODIN? Any help and insight would be appreciated !

Bump. Anyone?

Hello, I dont have the answer to your question, but I am thinking about buying the SM- N9300 for AT&T here in the USA. Just wondering how has it been working for you? LTE, apps, connections, etc. Should I have any concerns? Thanks

jeraldbro said:
Hello, I dont have the answer to your question, but I am thinking about buying the SM- N9300 for AT&T here in the USA. Just wondering how has it been working for you? LTE, apps, connections, etc. Should I have any concerns? Thanks
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Everything is fine as far as connections and network go. I just wanted it to show LTE instead of 4g. Anything thing I miss is VoLTE and Wi-Fi calling. I saw a root method for tmo and at&t users where you can flash sprints files through ODIN and have Wi-Fi calling work but dunno if the 9300 supports all this.

Okay, thanks......Ive also read that its a little difficult to put your Google account on there. Something between China & Google. But i guess some people have managed to put Gapps on there somehow. Is 4g considered LTE here in the states?
Sent from my Nexus 6P using XDA-Developers mobile app

jeraldbro said:
Okay, thanks......Ive also read that its a little difficult to put your Google account on there. Something between China & Google. But i guess some people have managed to put Gapps on there somehow. Is 4g considered LTE here in the states?
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Yes,4g is.cinsidered LTE here.

Unlocking 4G service on n910p Outside the USA

Hi
i have a couple of questions here , how can i access USB settings on n910p
cyanogenmod rom 5.1.1
becuse i want to try this on it .
and i want to know is the phone hardware locked when it comes to the frequency it supports ?
becuse we have LTE B3 (1800) in my Country , and the phone supporte LTE band 2(1900), 4(1700/2100), 5(850), 12(700), 17(700)
so i want to try and unlock the 4g service if it's possible.

Let me give you an insight about your query...
1. I'm too using an unlocked N910P with a GSM SIM like you where the 4G bands present in my country are not supported by this phone's hardware.
2. I've tried the post that you are referring to in the past but wasn't able to do anything because the software QSPT couldn't find my phone. Tried several times but with no success.
3. You can access USB Settings using Iodene Tools or Galaxy Tools. It has now become a paid software so the developer has removed it from XDA. (Search on XDA to find some threads related to it. You might get help from someone).
In short, it's almost next to impossible to unlock the bands as there's a high possibility that some tempering must have been done with the motherboard to unlock it, especially if the phone you got came with some Chinese firmware on it.
You can always try to check if it works for you or not.

robinhood1808 said:
Let me give you an insight about your query...
1. I'm too using an unlocked N910P with a GSM SIM like you where the 4G bands present in my country are not supported by this phone's hardware.
2. I've tried the post that you are referring to in the past but wasn't able to do anything because the software QSPT couldn't find my phone. Tried several times but with no success.
3. You can access USB Settings using Iodene Tools or Galaxy Tools. It has now become a paid software so the developer has removed it from XDA. (Search on XDA to find some threads related to it. You might get help from someone).
In short, it's almost next to impossible to unlock the bands as there's a high possibility that some tempering must have been done with the motherboard to unlock it, especially if the phone you got came with some Chinese firmware on it.
You can always try to check if it works for you or not.
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Click to collapse
Thank you for your explanations. I have something to ask.
I bought N910P. It was on Lollipop and 4G/LTE network was fine. But then I upgraded to Marshmallow via Odin. And now, there's only 3G with setting already to 4G/LTE. What is this problem related to?
Thanks.

rayyahidayat said:
Thank you for your explanations. I have something to ask.
I bought N910P. It was on Lollipop and 4G/LTE network was fine. But then I upgraded to Marshmallow via Odin. And now, there's only 3G with setting already to 4G/LTE. What is this problem related to?
Thanks.
Click to expand...
Click to collapse
See, the 4G icon that you witnessed after purchasing N910P was just a false indication. In reality, the network was 3G. Even when I got this phone, it was on Lollipop and it used to show 4G and the funny part was that I wasn't even using 4G then.
I've seen many users getting confused regarding this matter.
The only option available is that the network providers of your country start 4G services in the band that is supported in US (which again is highly u).

robinhood1808 said:
See, the 4G icon that you witnessed after purchasing N910P was just a false indication. In reality, the network was 3G. Even when I got this phone, it was on Lollipop and it used to show 4G and the funny part was that I wasn't even using 4G then.
I've seen many users getting confused regarding this matter.
The only option available is that the network providers of your country start 4G services in the band that is supported in US (which again is highly u).
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I see that now.
Sad tho...but yes, satisfied with your kind explanation.
Thanks a bunch, mate! :laugh:

rayyahidayat said:
Thank you for your explanations. I have something to ask.
I bought N910P. It was on Lollipop and 4G/LTE network was fine. But then I upgraded to Marshmallow via Odin. And now, there's only 3G with setting already to 4G/LTE. What is this problem related to?
Thanks.
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That 4G icon you were seeing was just HSPA+ but not actually 4G. If you see LTE then you can assume that you are on actual 4G.

sukesh1090 said:
That 4G icon you were seeing was just HSPA+ but not actually 4G. If you see LTE then you can assume that you are on actual 4G.
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Got it!
I'll see my actual mobile data usage to make it sure.
Thanks dude!

same issue. i have note 4 910p
rooted with dr.ketans rom. all networls working fine. but no network for JIO sim. please help me.

Did you find a solution, plz?

jam97 said:
Did you find a solution, plz?
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Hey jam, i just happened to notice you here. Is this the root of the problem i was trying to help you with? I take it you have jio? I hope you find a solution?

aaron74 said:
Hey jam, i just happened to notice you here. Is this the root of the problem i was trying to help you with? I take it you have jio? I hope you find a solution?
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Hi,
Yes exactly but even before and with another carrier and I just started a new thread, hope someone will help me out.
Thank you sir,
Sent from my SM-N910P using Tapatalk