flashed new rom and lost lte? - T-Mobile Samsung Galaxy S 4

I flashed the not 442 Google to my m919 and then lost LTE speeds it says connected but speed is 20kb max? On WiFi speeds are regular so I checked and reentered my APN to metro and then T-Mobile. In with metro pcs, I have searched all possible apns but have not had any luck. I attempted to switch back to prior ROM through restore but still had no speed. I am on 3gb plan but the month has rolled over now and I did not have throttle down on prior months of this significance. Any help would be greatly appreciated.

floridahigh said:
I flashed the not 442 Google to my m919 and then lost LTE speeds it says connected but speed is 20kb max? On WiFi speeds are regular so I checked and reentered my APN to metro and then T-Mobile. In with metro pcs, I have searched all possible apns but have not had any luck. I attempted to switch back to prior ROM through restore but still had no speed. I am on 3gb plan but the month has rolled over now and I did not have throttle down on prior months of this significance. Any help would be greatly appreciated.
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What network are you actually on?

Metro pcs
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floridahigh said:
Metro pcs
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My guess is you have the wrong APN settings, which might also include the MCC or the protocol.. Make sure every single entry is what it should be.
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Try these two and still have same result
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Related

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?
Click to expand...
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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
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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.
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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.
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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.
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Click to expand...
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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.

Data speeds

Originally it appeared that I was only having problems with data on certain ROMs but now I'm seeing that its across the board. When I first got the phone and was running ROMs I had great speeds but after flashing a certain ROM my speeds went to hell. Now no matter which ROM I am on my data speeds are awful. Checked apns, tried modems and just recently went all the way back to stock and started from scratch.
Any help would be much appreciated.
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gmac1990 said:
Originally it appeared that I was only having problems with data on certain ROMs but now I'm seeing that its across the board. When I first got the phone and was running ROMs I had great speeds but after flashing a certain ROM my speeds went to hell. Now no matter which ROM I am on my data speeds are awful. Checked apns, tried modems and just recently went all the way back to stock and started from scratch.
Any help would be much appreciated.
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It's the network.
What do you mean?
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gmac1990 said:
What do you mean?
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The network is probably causing the issue.
So its on att's side of things and not mine?
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gmac1990 said:
So its on att's side of things and not mine?
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If it is all roms and stock with multiple modems it is probably ATT. Unless you lost your IMEI. Menu - Settings - About phone - Status - IMEI (if this says 0 you lost it) But if you have any thing besides edge that probably isn't it.
Not that it matters to much but it turns out I went over my data cap (on an unlimited plan they cap at 5gb) so I have been throttled back. ......annoying.
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gmac1990 said:
Not that it matters to much but it turns out I went over my data cap (on an unlimited plan they cap at 5gb) so I have been throttled back. ......annoying.
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Ask ATT to switch your phone to another IMEI then call and switch it back. Make sure they keep unlimited on your plan, but going from phone to phone usually releases the cap.

[Q] APN Settings Or Importer??

When installing Skynote RC9z I forgot to backup my apn's.
Can I get someone to list them for me and how do I set the IPv6 apn.
Plus since I'm on PostPaid I read that I could use MetroPCS apn's, so a list of those please. Thanks
I normally never worry about apn's cause they're automatically restored but I forgot about specifically reading in Skynote thread to backup apn's and forgot.
LoL! Doh on me...
Try going to settings and network and register on network automatically.
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cameljockey1 said:
Try going to settings and network and register on network automatically.
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Yea I downloaded and used HiAPN, really wished I would've backed up my APN's from SkyNote RC9.1 cause I noticed I had a IPv6 LTE APN
I created a MetroPCS APN To tinker around with when I'm in low T-Mobile Coverage Zones that have higher MetroPCS Coverages. Shall be interesting, I was connected to it all night last night using it fine no problems.
n1nj4Lo said:
Yea I downloaded and used HiAPN, really wished I would've backed up my APN's from SkyNote RC9.1 cause I noticed I had a IPv6 LTE APN
I created a MetroPCS APN To tinker around with when I'm in low T-Mobile Coverage Zones that have higher MetroPCS Coverages. Shall be interesting, I was connected to it all night last night using it fine no problems.
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Click to collapse
I just used this link to correct my APN settings on my T-Mobile Note 2
http://support.t-mobile.com/docs/DOC-6763
Or you can just create a new APN.
Just like to add, I was in a no coverage zone I go to a lot and there for half the day switched from the T-Mobile APN getting kbps like back and forth between edge and gprs and decided to try and switch to the MetroPCS APN I manually added and was instantly get 4G and HSPA or lot LTE speeds between 3mbps to 7 and 10 constantly.
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[Q] Enable LTE access on T-Mobile's network

I have an AT&T SGH-I747 running CM11 that I have unlocked and using on T-mobile's network. Unfortunately though I can only access edge and I would like to be able to acces 3g, 4g, or LTE. How would I go about enabling this on my phone? Any help is appreciated.
a sandwhich said:
I have an AT&T SGH-I747 running CM11 that I have unlocked and using on T-mobile's network. Unfortunately though I can only access edge and I would like to be able to acces 3g, 4g, or LTE. How would I go about enabling this on my phone? Any help is appreciated.
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Seems that the problem could be on the APN... Search for them it should be something like fast.t-mobile.com
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TopoX84 said:
Seems that the problem could be on the APN... Search for them it should be something like fast.t-mobile.com
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I have tried several different APN's and none have worked/given me anything more than edge.
a sandwhich said:
I have tried several different APN's and none have worked/given me anything more than edge.
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Click to collapse
My tmobile APN settings... Note - I have an unlocked AT&T HTC ONE
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TopoX84 said:
My tmobile APN settings... Note - I have an unlocked AT&T HTC ONE
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I have tried that one out and nothing has changed. Still stuck on edge. Thanks for the suggestion though.
I used to work for t-mobile and that's the LTE APN...
check on their website the LTE coverage areas around you.
Make a backup of your device and attempt a factory reset.
there were some devices I worked with that the factory reset worked like a magic trick.
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TopoX84 said:
I used to work for t-mobile and that's the LTE APN...
check on their website the LTE coverage areas around you.
Make a backup of your device and attempt a factory reset.
there were some devices I worked with that the factory reset worked like a magic trick.
Sent from my HTC One using xda app-developers app
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Click to collapse
I can't really do a factory reset, as I am currently running CM11 and I was previously on ATT. My friend on Tmobile get's LTE coverage here so I would assume I would be capable of that as well. Or at least get 3g coverage.
a sandwhich said:
I can't really do a factory reset, as I am currently running CM11 and I was previously on ATT. My friend on Tmobile get's LTE coverage here so I would assume I would be capable of that as well. Or at least get 3g coverage.
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I read some old topics where upgrading TWRP or CWM to the latest and 're-flashing was solving the LTE issue this was about 3-4 months ago
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TopoX84 said:
I read some old topics where upgrading TWRP or CWM to the latest and 're-flashing was solving the LTE issue this was about 3-4 months ago
Sent from my HTC One using xda app-developers app
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Hmmm, ok. I have the second to most recent CWM and I reflashed to CM11 again just this morning. Still don't have access.

[Q] i747 question in regards to switching carriers

Hi all,
Just had a quick question, as I am thinking about swapping carriers from AT&T (horrible customer service and technical support). I currently have the AT&T i747, but I am thinking about switching from AT&T to T-Mobile as they are now providing Unlimited Everything for $70 per month. My question is, if I unlock my i747 for T-Mobile, which section in XDA would I go for custom ROMS, Kernels, tools and utilities and such? Would I stay here since the hardware is AT&T or would I need to migrate to the T-Mobile forums? Thanks in advance for your assistance.
In order to enable high speed data on you i747, you'll need to enable AWS frequencies on your s3 and unlock it. You could continue to use d2att ROMs if the model # on your phone does not get changed by using the T-Mobile mod.
You can use either sections, but you need to stick with i747 modems and firmwares.. And if you want to take advantage of T-Mobile's WiFi calling then you need a T-Mobile ROM.. You may or may not have to do the AWS mod. if you live in a refarmed T-Mobile area, then you'll get 4g and 4g lte fine, if not, then you may only get lte with edge being a fall back if you don't do the mod.. I used an i747 with T-Mobile and luckily my area is refarmed so I had 4g and 4g lte with no mods needed
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OK, so I switched to T-Mobile today and my Mobile data and WiFi are picking up only one bar. Do I need to flash or change a modem setting or something?
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jon_yarbrough said:
OK, so I switched to T-Mobile today and my Mobile data and WiFi are picking up only one bar. Do I need to flash or change a modem setting or something?
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Click to collapse
The modem should not affect the wi-fi performance but it will affect data performance.
This thread may help: http://forum.xda-developers.com/showthread.php?t=1771021
jon_yarbrough said:
OK, so I switched to T-Mobile today and my Mobile data and WiFi are picking up only one bar. Do I need to flash or change a modem setting or something?
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Click to collapse
Alot of people overlook the fact that T-Mobile uses which frequencies? Ones that are higher 1700+ mhz and someone like at&t uses 850+ the lower frequencies travel farther and penetrate walls and buildings. In my area if you get T-Mobile it os because you dont want to talk on the phone ever again...
Good luck
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