Develop Bugs

Switching lte on

Hi friends who ever bought the t-mobile galaxy note can u try this option to check whether u can change the settings for data connection .I have a galaxy s3 where I used to this option to switch off lte to conserve battery .it worked fine.if this process works and u get the options to change connection type then you are good to buy t-mobile galaxy note 2 to use lte on at&t because I heard both t-mobile and at&t note versions has same chip inside but lte is temporarily disabled in t-mobile version .
1) With phone on, take off back cover and press your SIM card so it releases from the spring. It won't come all the way out as it's blocked by the battery. This seems fine - I didn't bother trying to force it out as I didn't want to break anything...
2) Once you see the message that the SIM card is removed, go to the dialer and dial *#2263#
3) You should see a menu with band selections. The current setting is "Automatic". If you switch to "GSM All", you will be EDGE (2G). If you switch to "WCDMA All", you will be on HSPA+ (3G, though AT&T and others call it 4G) and you will have lte too
4) Press the SIM card back into place until it clicks. For whatever reason the phone will not recognize it until you reboot. Upon reboot you should see your new setting in effect.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Great, let me do this now so I'll ready when Tmobile turns on LTE in 2 years
Sent from my SPH-L900 using xda app-developers app

Fwiw I believe you can do this without rebooting.
At least when switching the gsm radio bands. I often check 1900 mhz in my area of nyc by doing #*2263#
I have done this for Lte and it just says no service. Perhaps I should get at&t to show up but this far it hasn't worked.
I'm interested in what other people know about this!

If I click the SIM it doesn't come out enough (hits the battery) to tell me SIM removed . No dice on that approach for me.

shook187 said:
Great, let me do this now so I'll ready when Tmobile turns on LTE in 2 years
Sent from my SPH-L900 using xda app-developers app
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Lmao be cool dude he just posting his findings. Tmobile told me we would need to get a lte sim when it becomes available anyway.
Sent from my SGH-T889 using xda premium

konceptz said:
Fwiw I believe you can do this without rebooting.
At least when switching the gsm radio bands. I often check 1900 mhz in my area of nyc by doing #*2263#
I have done this for Lte and it just says no service. Perhaps I should get at&t to show up but this far it hasn't worked.
I'm interested in what other people know about this!
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you dont have to remove the sim totally just push it it will come out and it show up on the phone that sim is not connected .

deathpulse said:
If I click the SIM it doesn't come out enough (hits the battery) to tell me SIM removed . No dice on that approach for me.
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The same thing happened to me.
Sent from my SGH-T889 using xda premium

try this i have made tutorial of how u can access the option .if u get those options on the note 2 .then u r good to use at&t on t-mobile galaxy note 2 .you can reverse the process again with the same procedure .please post the screenshots of your note 2 after changing the options .here is the link
https://www.youtube.com/watch?v=ET8AsBvGH4c
thanq
Jerry D said:
The same thing happened to me.
Sent from my SGH-T889 using xda premium
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You can select bands from any Samsung Galaxy device (that I've tried) by entering this code into the dialer. *#*#197328640#*#*
A menu pops up which give you lots of options. To get to band options, choose Debug Screen, Phone Control, Network Control, Band Selection. Don't get excited, every device I've seen has an LTE option in there, but that doesn't mean your phone has LTE hardware.

Another for the SIM not coming out far enough. Also, with the *#197328640#, the 'Debug Screen' was under UMTS.
My GN2 is carrier unlocked and I have the SIM from my AT&T iPhone4 in it. I'm not sure that SIM would even be LTE compatible anyhow since all I had with the iPhone4 was 3G.

Wallcrawler said:
Another for the SIM not coming out far enough. Also, with the *#197328640#, the 'Debug Screen' was under UMTS.
My GN2 is carrier unlocked and I have the SIM from my AT&T iPhone4 in it. I'm not sure that SIM would even be LTE compatible anyhow since all I had with the iPhone4 was 3G.
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confirmed that it does have LTE after debug screen, showing UMTS, CDMA, LTE, SIM, run EFS SYNC() as options

Does that mean you have LTE working on At&t now???
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ekerbuddyeker said:
Does that mean you have LTE working on At&t now???
Sent from my SGH-T889 using xda app-developers app
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i try but get no signal guess we have to wait

any update if its working on att

i dont think it ever will lol

If the battery blocks the SIM, can't you just take the SIM out, boot up the phone with no SIM, and do the same thing?

If this T-Mobile version physically HAS the LTE radio that AT&T uses, does anyone know what it would take to get it working on AT&T's LTE?

play2lose said:
If this T-Mobile version physically HAS the LTE radio that AT&T uses, does anyone know what it would take to get it working on AT&T's LTE?
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Well first we _still_ need to get a working lte at&t sim card into the phone and see what happens.

I have one, of course not with me. Will try tonight and report back.
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Just tried it. LTE is an option but I can figure out if there is anyway to enable it. Open for suggestions?
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I can only access H+ and not LTE

I recently got a LTE sim card, and an LTE data plan with Fido. 4G worked for about 5 seconds (I even did a speed test) and then now it's permanently on H+.
APN is set to LTEmobile.APN but when I change to Network Mode LTE/GSM, my signal goes blank and stays like that until I go back to GSM/WCDMA, which doesn't make any sense.
I'm using Task's 10/28 Build, which is the only build that doesn't have black screen unlock.
I tried updating to his latest 4.2 but LTE still didn't work.
Any ideas on what is wrong?

Sepharite said:
I recently got a LTE sim card, and an LTE data plan with Fido. 4G worked for about 5 seconds (I even did a speed test) and then now it's permanently on H+.
APN is set to LTEmobile.APN but when I change to Network Mode LTE/GSM, my signal goes blank and stays like that until I go back to GSM/WCDMA, which doesn't make any sense.
I'm using Task's 10/28 Build, which is the only build that doesn't have black screen unlock.
I tried updating to his latest 4.2 but LTE still didn't work.
Any ideas on what is wrong?
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Please invest $10 and get a LTE sim card from FIDO it will work with LTE sim card.

ysr84 said:
Please invest $10 and get a LTE sim card from FIDO it will work with LTE sim card.
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did you not read what he said? He has an LTE sim card. To the OP try a google search and see if there are any different apn's. Its not rom related because task650 gets LTE speeds with his rom. Or if your phone is unlocked and you know someone else that has the same phone or LTE sim card pop it in and try it out
Sent from my SGH-I747M using xda premium

I'm suffering the same problem on rogers. Going to flash back to stock rooted to fix the problem, then try again. I'll do this tomorrow as its getting late.
Sent from my Nexus 7 using xda app-developers app

Download LTE on/off from the play store and switch to lte only, I'm on fido and I had the same problem
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pjcordi said:
Download LTE on/off from the play store and switch to lte only, I'm on fido and I had the same problem
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Tried it but didn't connect to lte.
Sent from my Nexus 7 using xda app-developers app

Some ROMs have incorrect Fido/Rogers APN settings; I'd go over what's in the ltemobile.apn settings and compare it to a known good set (such as the ones in the stock ROM).

Soft bricked my phone by going back to rooted stock ROM through Odin. Guessing I should have formated system. Anyways fixed it up. Got lte working on rooted stock. Then when to miui no lte. Read that lte is a problem with many on this ROM so I lose. Hope I can get it working eventually when off stock.
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onei0077 said:
Soft bricked my phone by going back to rooted stock ROM through Odin. Guessing I should have formated system. Anyways fixed it up. Got lte working on rooted stock. Then when to miui no lte. Read that lte is a problem with many on this ROM so I lose. Hope I can get it working eventually when off stock.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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Carriers use different labels for H+/LTE - ROMs differ in how they interpret the actual signal speed.
Some ROMs accurately reflect the network speed, some don't.
Some carriers promote/sell speeds that they cannot provide in every area.
There are many possible explanations as to why you are experiencing this.
You should provide your ROM, carrier, APN settings, network speedtest results, etc. for more in-depth answers.

Mobile data not working

has anyone had the issue where their phone won't connect back to 3g data?
when I reboot my phone 3g will work until wifi kicks in. after I turn wifi off 3g comes back, I can call and text but will not download any data.
I have tried Odin back to stock. wiped everything including recovery. I have tried flashing every combination of modems and kernels. all same.
however one thing I will note. I have not been able to get a successful modem flashed in Odin. it keeps failing. so I flash in twrp.
I also wiped the activation data via ##732# or something like that. had sprint reactivate my phone too..
perhaps someone could shed some light on this?
-Wizzle

I just got my Note 2 like 5 days ago and mine does the same thing. Its very annoying and its gonna be exchanged today for that and other reasons.
Sent from my SCH-I535 using xda premium

hmm. I wonder if it's network related..
is your phone stock?
-Wizzle

Okay here is the skinny. It is network related. My wife's stock s3 does the same thing. If you are in an area without lte and your phone under mobile settings is selected to lte/evdo/cdma it will connect to ephrd13. Which is enhanced 3g. When you come off wifi or a phone call sometime it will not reconnect. You can toggle data a few times and it will reconnect.
To solve this issue, under mobile settings I select evdo only setting being that I do not have lte in my area. There is no change in speed between the 2 3g networks.
This info is from self diagnosing the rooted note 2, a stock photon, and a stock s3.
I have had sprint reset the phones as well as the ##data# trick.
Sent from my SPH-L900 using xda app-developers app

I had this problem as well.. Very annoying..
-TeaM VeNuM Like A Boss
-Galaxy Note II Edition

pongoface said:
Okay here is the skinny. It is network related. My wife's stock s3 does the same thing. If you are in an area without lte and your phone under mobile settings is selected to lte/evdo/cdma it will connect to ephrd13. Which is enhanced 3g. When you come off wifi or a phone call sometime it will not reconnect. You can toggle data a few times and it will reconnect.
To solve this issue, under mobile settings I select evdo only setting being that I do not have lte in my area. There is no change in speed between the 2 3g networks.
This info is from self diagnosing the rooted note 2, a stock photon, and a stock s3.
I have had sprint reset the phones as well as the ##data# trick.
Sent from my SPH-L900 using xda app-developers app
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yeah I did the ## thing. however it came back. so someone from sprint called me to see if Iwas happy with the support and I told them I was still having data issues. He told me that he would put my ticket in priority and after an hour everything has been working better so far...
but we'll see
-Wizzle

Yes changing to evdo so far has helped alot. I really appreciate the info. Thank you.
Sent from my SCH-I535 using xda premium

musclehead84 said:
Yes changing to evdo so far has helped alot. I really appreciate the info. Thank you.
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I will try this as well. Thank you.
-Wizzle

When I say evdo only I meant cdma only. Ehrpd13 is the handshaking 3g for lte. Some areas have lte in the towers but no ehrpd13 so the lte is not turned on yet. Basically ehrpd13 and lte are like cookies and cream lol.
Sent from my SPH-L900 using xda app-developers app

pongoface said:
When I say evdo only I meant cdma only. Ehrpd13 is the handshaking 3g for lte. Some areas have lte in the towers but no ehrpd13 so the lte is not turned on yet. Basically ehrpd13 and lte are like cookies and cream lol.
Sent from my SPH-L900 using xda app-developers app
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yeah I figured cdma. it works much better so far. but then I'll need to turn on lte eventually when you area gets it.
-Wizzle

wizzlewizzle said:
yeah I figured cdma. it works much better so far. but then I'll need to turn on lte eventually when you area gets it.
-Wizzle
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The problem is my area does have it but at my house its very weak. My ohone wikl display 4g but it wont download anything untio it switches to 3g.
Sent from my SPH-L900 using xda premium

When the 4g network matures as it will the 4g will get better as the 3g.
You can always go to I think s4gru.com. That site shows when and where lte will become available. Plus they will be able to help you better there than xda.
As for sprint customer service, they are laughable at best. 4 people I spoke with didn't know what ehrpd13 was lol.
Sent from my SPH-L900 using xda app-developers app

musclehead84 said:
The problem is my area does have it but at my house its very weak. My ohone wikl display 4g but it wont download anything untio it switches to 3g.
Sent from my SPH-L900 using xda premium
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I hear ya. it's basically like not even having 4g.
-Wizzle

LTE to 3G

So im really not sure.. Baseically the m7 switches from lte to 3g after awhile and never switches back even on stock rom
Ive flashed stock and factory it, still didnt fix
Ive flashed original radios and rom, still nothing
Ive called verizon they have "refreshed" my connection.. Still no dice
Ive always gotten lte anywhere i went, just dont understand why its acting this way
Anything else to try?
Sent from my M7 using xda app-developers app

Dieregard, its verizon itself.
Sent from my M7 using xda app-developers app

I have been having the same issue. Did you get it resolved? I was thinking it was the sim card, was that the case?
Sent from my HTC6500LVW using Tapatalk

mrbracht said:
I have been having the same issue. Did you get it resolved? I was thinking it was the sim card, was that the case?
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I had this issue and went and got a new sim card. It fixed the problem.:good:

I will request a new sim, the lady said it wasnt the sim..well now im going to demand one, thankyou
Editt New sim is on the way
Sent from my M7 using xda app-developers app

Try turning off your data, turning on airplane mode, then turning data back on and turning off airplane mode. That normally works for me. It gets the phone to rescan for towers, and it switches back over to 4G.
If the new SIM works let me know, I might have to try that.
Sent from my HTC6500LVW using Tapatalk

Yes new sim works :thumbup:
Sent from my HTC6500LVW using xda app-developers app

It could also just be a weak 4G signal. Notice how Verizon likes to brag about their coverage but not speed; that's because they put up a few antennas every few miles and run them at high power. The LTE network just isn't as dense as 3G, so you have these signal gaps everywhere where the phone is on the border line between 3G and 4G. AT&T and T-Mobile stomp all over Verizon's 4G where they have coverage.

Signal dropping constantly

So my mom has this phone, and me and my sister have HTC ones. Our phones work fine at home, and we just got Lte coverage a few days ago, so that's been nice. However, my mom's phone recently has been dropping basically every call no matter where she is or how much service it says she has. The signal bars show a red x, and usually given time the service will come back, but sometimes it takes a restart. I've tried updating profile and prl, and the best the people at the sprint store could do was tell me that there is supposed to be a software update coming to fix it. The phone is completely stock. It doesn't seem like the network cause the other phones work fine. Has anyone else had this issue? Any ideas on what we could try?

TriBeard said:
So my mom has this phone, and me and my sister have HTC ones. Our phones work fine at home, and we just got Lte coverage a few days ago, so that's been nice. However, my mom's phone recently has been dropping basically every call no matter where she is or how much service it says she has. The signal bars show a red x, and usually given time the service will come back, but sometimes it takes a restart. I've tried updating profile and prl, and the best the people at the sprint store could do was tell me that there is supposed to be a software update coming to fix it. The phone is completely stock. It doesn't seem like the network cause the other phones work fine. Has anyone else had this issue? Any ideas on what we could try?
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You must have weak LTE signal. Go to Settings>More>Mobile Networks and tick it to CDMA. If she wants LTE she'll have to do this manually.
Sorry but it's just the way this phone is.
Sent from my LG-LS970 using XDA Premium 4 mobile app

engine95 said:
You must have weak LTE signal. Go to Settings>More>Mobile Networks and tick it to CDMA. If she wants LTE she'll have to do this manually.
Sorry but it's just the way this phone is.
Sent from my LG-LS970 using XDA Premium 4 mobile app
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I'll give that a try and see how it works. Why does this phone have an issue with it and the others don't seem to?

TriBeard said:
I'll give that a try and see how it works. Why does this phone have an issue with it and the others don't seem to?
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It's just the way some phones are. My wife has the HTC One also, and she has to change hers too.
Sent from my LG-LS970 using XDA Premium 4 mobile app

Well, I changed the mode to CDMA only, but no dice. It doesn't make a difference. Any other suggestions?

TriBeard said:
Well, I changed the mode to CDMA only, but no dice. It doesn't make a difference. Any other suggestions?
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You can try to flash the ZVC radio from here. http://forum.xda-developers.com/showthread.php?t=2230106 but you'd have to root/unlock.
Other option is to LGNPST in the same thread under "Additional info". That's about all I got.
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