Develop Bugs

wifi

How is everyone's WiFi on their phone? My phone wants to always lock onto 5g instead of the 2.4. My 5g signal isn't strong enough to cover the whole house, but yet it keeps trying the 5g. Can this be changed?

funeralplanner said:
How is everyone's WiFi on their phone? My phone wants to always lock onto 5g instead of the 2.4. My 5g signal isn't strong enough to cover the whole house, but yet it keeps trying the 5g. Can this be changed?
Click to expand...
Click to collapse
wifi/advanced/wifi band unless your on a lg8 rom
Sent from my SPH-L710 using xda premium

I just forgot the 5g band and I have much better signal.

solehjeff said:
wifi/advanced/wifi band unless your on a lg8 rom
Sent from my SPH-L710 using xda premium
Click to expand...
Click to collapse
Has anyone found a solution to getting wifi band selection back on stock LG8? I had turned off 5ghz before the update and now only have the ability to connect to 2.4ghz. What kind of update doesn't take into account that someone might have elected to turn off one of the frequencies so it should reset to auto???
Thx in advance for any suggestions

Roninllc said:
Has anyone found a solution to getting wifi band selection back on stock LG8? I had turned off 5ghz before the update and now only have the ability to connect to 2.4ghz. What kind of update doesn't take into account that someone might have elected to turn off one of the frequencies so it should reset to auto???
Thx in advance for any suggestions
Click to expand...
Click to collapse
Freeza posted a fix for this in the development section.
Sent from my SPH-L710 using xda premium

Straight talk help!

Hi I have a huge problem I have a gs3 (tmobile, unlocked, rooted) I use it with straight talk tmobile and for the first month n a half it was great fast and everything was jus perfect but then I just started getting really slow n crappy speeds. I did everything I could with apns and everything is fine on that end according to the straight talk but still slow speeds. I i can't pin point exactly what's the problem because I don't recall what I did to cause this or made note of it as soon as it happened.I've also never went over 2gb of data or the 100mb cap they have so it's not that either. I've flashed ROMS like cm10 n aokp n hell fire n such n wicked's rom also but I also upgraded to jelly bean around the same Time. So idk what exactly the problem is.. can someone anyone help me out of lead me in the right direction to get this solved? Thanks in advance n happy holidays!
Sent from my SGH-T999 using xda app-developers app

dnpmoney45 said:
Hi I have a huge problem I have a gs3 (tmobile, unlocked, rooted) I use it with straight talk tmobile and for the first month n a half it was great fast and everything was jus perfect but then I just started getting really slow n crappy speeds. I did everything I could with apns and everything is fine on that end according to the straight talk but still slow speeds. I i can't pin point exactly what's the problem because I don't recall what I did to cause this or made note of it as soon as it happened.I've also never went over 2gb of data or the 100mb cap they have so it's not that either. I've flashed ROMS like cm10 n aokp n hell fire n such n wicked's rom also but I also upgraded to jelly bean around the same Time. So idk what exactly the problem is.. can someone anyone help me out of lead me in the right direction to get this solved? Thanks in advance n happy holidays!
Sent from my SGH-T999 using xda app-developers app
Click to expand...
Click to collapse
I would call them and tell them to reset the network.

Thanks!!! so just call them up and ask to have my network reset? I spent 2 hours with them today going through all the settings and stuff so I don't mind doing the same. Also i noticed when I go to about phone it says I'm on edge:2 is that a problem with my end or theirs?
Sent from my SGH-T999 using xda premium

dnpmoney45 said:
Thanks!!! so just call them up and ask to have my network reset? I spent 2 hours with them today going through all the settings and stuff so I don't mind doing the same. Also i noticed when I go to about phone it says I'm on edge:2 is that a problem with my end or theirs?
Sent from my SGH-T999 using xda premium
Click to expand...
Click to collapse
If it says EDGE.. Means you are using 2G network. Your HSPA 3g/4g is off. You can change them in network mode.

chingoo04 said:
If it says EDGE.. Means you are using 2G network. Your HSPA 3g/4g is off. You can change them in network mode.
Click to expand...
Click to collapse
Thanks it was that problem but it wasnt that easily fixed. I checked my IMEI and it was 0 so i had to restore that first and then boom everything is up n running seeing the 4G in the top box is so reassuring. Thanks everyone that helped or said anything it was much appreciated and welcomed!!

[Q] Is this blocked IMEI on my Note 2? im confused :(

Im a little confused and im wondering if someone can help me out or if someone is going through the same thing i am.... :crying::crying::crying:
So i just got a Galaxy Note 2 from my fathers friend at work and i am wondering is this considered when they say being a blocked IMEI cause its a little confusing...
So I have T-Mobile and i received the Note 2 it is not rooted or anything and the IMEI matches the same in the "About Device" and in the back behind the battery so anyways i go and pop my micro sim card in and notice right away it gets no service it just has a circle with a horizontal line accross like seen on the pics and the lock screen just says "Searching".. i go into mobile networks and try to manually select the T-mobile network and it just gets stuck on "Registering to T-Mobile" then i get an error in my notifications that says "No Service Selected Network (T-Mobile) not available" so right away im assuming that the IMEI must be bad so i call T-Mobile give them the IMEI and they tell me its NOT blocked so now it gets confusing.
while i was still messing with it i decided to turn ON wi-fi and all of a sudden the wi-fi calling feature turns on and viola! the circle with the horizontal line changes to empty service bars and in the notifications dropdown it now says T-Mobile so i go on and make a call IT WORKS! send a text IT WORKS receive calls and texts ALSO WORK! now isnt that wierd?
what do you guys think might be wrong with the phone is the IMEI really blocked but if it is will i be able to make calls and send and receive texts i dont understand please some one help me any advice will be appreciated.. :fingers-crossed:
Thanks (here are pics of screen shots)

Try switching the phone to 2g only ! *#*#4636#*#*.
MIGHT BE signal problem in your area
Sent from my iPad using Tapatalk HD

I actually tried that and it dont work..... but now something wierd happened... it start working good In certain areas and then it cuts off
Sent from my SGH-T889 using xda premium

Try calling tmobile with a differnt phone.
Sent from my SGH-T889 using xda app-developers app

Generally, when your IMEI is blocked, you'll have bars and even data. Your phone just won't work. So I doubt it's that. The fact that WiFi calling works tells me that the SIM reader works. Do you know if the phone was taken apart? Maybe the antenna is messed up. Id just try going somewhere else to use your phone and try.
Possibly root and flash different modem?
Sent from my SGH-T889 using xda app-developers app

You_got_owned123 said:
Generally, when your IMEI is blocked, you'll have bars and even data. Your phone just won't work. So I doubt it's that. The fact that WiFi calling works tells me that the SIM reader works. Do you know if the phone was taken apart? Maybe the antenna is messed up. Id just try going somewhere else to use your phone and try.
Possibly root and flash different modem?
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
The sim card reader does work cause sometimes out of the blues the phone will register on the network and im able to use it fully as it should and then it goes back to having the little circle with a line accross it.... today it behaved preety good it gave me a good amount of time of usage but it would still randomly cut off and come back on..... as far as being opened im starting to think it maybe was opened or something cause it doesnt have the "VOID" sticker on the screw in the back like it should..... and maybe what u said about flashing a different modem how can I check what modem I have now?? Cause the phone was rooted and had a custom rom but I restored it back to stock with Odin not sure if doing that will restore the stock modem or not.
Thanks for all your help :thumbup:
Sent from my SGH-T889 using xda premium

DROID_ROCKS_IFONE said:
The sim card reader does work cause sometimes out of the blues the phone will register on the network and im able to use it fully as it should and then it goes back to having the little circle with a line accross it.... today it behaved preety good it gave me a good amount of time of usage but it would still randomly cut off and come back on..... as far as being opened im starting to think it maybe was opened or something cause it doesnt have the "VOID" sticker on the screw in the back like it should..... and maybe what u said about flashing a different modem how can I check what modem I have now?? Cause the phone was rooted and had a custom rom but I restored it back to stock with Odin not sure if doing that will restore the stock modem or not.
Thanks for all your help :thumbup:
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
I don't think there actually is a void sticker.. When I opened mine up, I didn't find one . I could have just over looked it possibly. Just try flashing JediM14. Comes with everything you need much better than stock. I'm thinking maybe tmobile is working on your area so you have intermittent service. Could be anything. I'll try to help you look into it. The sticky for the modem, ,facotry img and such is in android development. I think the sticky thread is in top three. It's obvious
Sent from my SGH-T889 using xda app-developers app

When you odin flashed back to stock did you then run all available ota's?
Sent from my SGH-T889 using xda premium

moto211 said:
When you odin flashed back to stock did you then run all available ota's?
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
Yea I tried that and it said there was no available updates.... im currently running build JZO54K.T889UVBMB4 is that the latest one??
Sent from my SGH-T889 using xda premium

You_got_owned123 said:
Just try flashing JediM14. Comes with everything you need much better than stock. I'm thinking maybe tmobile is working on your area so you have intermittent service. Could be anything. I'll try to help you look into it. The sticky for the modem, ,facotry img and such is in android development.
Click to expand...
Click to collapse
Does that rom JediM14 flash a different modem when I flash it..... and ive heard about the canadian T889v modem will that work on my phone? Excuse the noob question im not that experienced in this so dont wanna brick my phone or anything
Sent from my SGH-T889 using xda premium

DROID_ROCKS_IFONE said:
Does that rom JediM14 flash a different modem when I flash it..... and ive heard about the canadian T889v modem will that work on my phone? Excuse the noob question im not that experienced in this so dont wanna brick my phone or anything
Sent from my SGH-T889 using xda premium
Click to expand...
Click to collapse
im having same issue but i can actually make calls and get text, the data side isnt working , sometimes it kicks in but its more on no data than on
im calling for a replacement tomorrow this was a replacement from a bad usb port phone i sent 2 days ago , tried everything and i know its not network cuz everyone in my house has t mobile . hope you figure it out as i gave up

JediM14 comes with the new MD1 firmware. Everything is for Tmobile. During installation, I think aroma gives you options for modem..not completely sure . but if you have tmobile, I'd stick with tmobile modem. Does anyone else have tmobile at your house you can compare signal to?
Sent from my SGH-T889 using xda app-developers app

JediM14 comes with the new MD1 firmware. Everything is for Tmobile. During installation, I think aroma gives you options for modem..not completely sure . but if you have tmobile, I'd stick with tmobile modem. Does anyone else have tmobile at your house you can compare signal to?
Sent from my SGH-T889 using xda app-developers app
Click to expand...
Click to collapse
I actually just updated to the OTA MD1 update and still the same and my wife has T-Mobile aswell she has an iphone 5 and she never looses service here, not too mention we get LTE already in our area but she always has full or almost full bars, as for me as im typing this now this is what mines looks like but yet yesterday in the night I was getting service and 4g LTE
Im starting to think maybe its a hardware problem with my cellular antenna cause my wi-fi antenna works just perfect or what else might it be?
Sent from my SGH-T889 using xda premium

As long as you're stock and unrooted, you might be able to get a warranty replacement. I know you're not the original owner but it really depends on the rep that you get on the phone. If you get the right rep they'll warranty it based on the fact that no matter who originally purchased the phone, there's no way it could be more than a year old. Or, if you have the premium handset protection, you should be able to get it covered under the extended warranty that it offers.
Sent from my SGH-T889 using xda premium

Call Tmobile and tell them your situation. They'll reset your connection to the towers and it might help. They've done that for me. Just ask for like a connection reset. Even better if you just told them what's happening.
Sent from my SGH-T889 using xda app-developers app

Could be antena problem. Had that happen to me with my skyrocket. The one end was not connecting to the right place. Somebody accidentally cut it off when I had the speaker fixed.

droidbabyxda said:
Could be antena problem. Had that happen to me with my skyrocket. The one end was not connecting to the right place. Somebody accidentally cut it off when I had the speaker fixed.
Click to expand...
Click to collapse
Could be this. I bought a replacement loudspeaker that was apparently for the T889 (which it wasn't)..[Most loudspeaker modules that say they are for the T889 are missing the third contact.] It was a missing a antenna contact which totally killed my reception. Try to take it apart and look at the loudspeaker. There should be three white tab looking things on the module itself. If there's only two, then that's most likely the problem.

official cyanogen 11 nightlies now available!

CM 11 nightlies (kitkat) are now available for download for the Sprint LG G2 LS980 from the cyanogen website.
Don't know how stable they are yet but gotta love having another rom to download and test!
http://download.cyanogenmod.org/?device=ls980
Known issues:
LTE/CDMA handoff
NFC ( can send files to another phone but can't read tags )
Google Hangouts video from front camera is flipped
Link to change log:
http://changelog.bbqdroid.org/#/ls980/next

In general g2 discussion a couple of people tried the first nightly and couldn't get it to boot
Sent from my LG-LS980 using xda app-developers app

Wowie! Official support? I'm quite surprised.

Yeah I can't even get that to flash and a lot of other people can't
Sent from my LG-LS980 using XDA Premium 4 mobile app

Up and running with philz custom cwm. http://forum.xda-developers.com/showthread.php?t=2554053

That's weird that's what I'm using
[edit] just saw there was an update to Philz, I'll try that
Sent from my LG-LS980 using XDA Premium 4 mobile app

kc3 said:
That's weird that's what I'm using
[edit] just saw there was an update to Philz, I'll try that
Sent from my LG-LS980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I'm using the Dec 4th version I think. Also I turned off loki support since we don't need it.

jsteelm said:
Up and running with philz custom cwm. http://forum.xda-developers.com/showthread.php?t=2554053
Click to expand...
Click to collapse
you get phone/3g data? I can only get LTE on it.

riggsandroid said:
you get phone/3g data? I can only get LTE on it.
Click to expand...
Click to collapse
Oh to have your problem haha. Yes I have 3g on it. Sprint hasn't finished updating the Raleigh area, so I get spotty LTE. In fact, due to their handoff bug, I only get lte for a few seconds before it switches back to 3g (on previous roms)

jsteelm said:
Oh to have your problem haha. Yes I have 3g on it. Sprint hasn't finished updating the Raleigh area, so I get spotty LTE. In fact, due to their handoff bug, I only get lte for a few seconds before it switches back to 3g (on previous roms)
Click to expand...
Click to collapse
interesting. i can't get calls or sms to work.
makes it pretty much useless to me.
i wonder what the deal is...
UPDATE
used the pa gapps mini modular package and i was good to go. got sms and 3g, etc.
after about 15 mins of using, i lose it.
weird...

riggsandroid said:
interesting. i can't get calls or sms to work.
makes it pretty much useless to me.
i wonder what the deal is...
Click to expand...
Click to collapse
Which baseband you got? I doubt we have different ones, since the phone I think only has 2 modems out.
Edit: After looking at the post here http://forum.xda-developers.com/showthread.php?t=2451426 I don't know how to distinguish v7 and v8. Regardless, I highly doubt that's the issue.
Have you tried changing your Preferred network type? Mine is set to "Global" On occasion, I've seen Data enabled turned off seemingly spontaneously on other devices, sooo check that too
Here's mine (attachment):

They fixed the twrp script on the 12/11 nightly...should work now

jsteelm said:
Which baseband you got? I doubt we have different ones, since the phone I think only has 2 modems out.
Edit: After looking at the post here http://forum.xda-developers.com/showthread.php?t=2451426 I don't know how to distinguish v7 and v8. Regardless, I highly doubt that's the issue.
Have you tried changing your Preferred network type? Mine is set to "Global" On occasion, I've seen Data enabled turned off seemingly spontaneously on other devices, sooo check that too
Here's mine (attachment):
Click to expand...
Click to collapse
actually when i reflashed with new gapps I had Global/3g/2g/LTE as my network options. after it goes out, all I have is LTE/3g/2g and anything but LTE kills radio.
I wonder whats going on. Maybe google is restoring some type of data?
i know the guy who flashed yesterday and had it working, lost data after some time, and I wonder if he ran into same issue I had.

riggsandroid said:
actually when i reflashed with new gapps I had Global/3g/2g/LTE as my network options. after it goes out, all I have is LTE/3g/2g and anything but LTE kills radio.
I wonder whats going on. Maybe google is restoring some type of data?
i know the guy who flashed yesterday and had it working, lost data after some time, and I wonder if he ran into same issue I had.
Click to expand...
Click to collapse
It sounds like the ROM doesn't know how/when to fall back onto 3g to answer phone calls. Did you try 3G or 1x only to test calls?
Sent from my LG-LS980

Ascertion said:
It sounds like the ROM doesn't know how/when to fall back onto 3g to answer phone calls. Did you try 3G or 1x only to test calls?
Sent from my LG-LS980
Click to expand...
Click to collapse
it switched fine initially. showed 3g in status bar, sent SMS. started a call.
once the preferred network changes, anything but LTE kills the radio. "Emergency Calls Only" is what the status is in the quicktiles. With a blank radio signal indicator.

riggsandroid said:
it switched fine initially. showed 3g in status bar, sent SMS. started a call.
once the preferred network changes, anything but LTE kills the radio. "Emergency Calls Only" is what the status is in the quicktiles. With a blank radio signal indicator.
Click to expand...
Click to collapse
so i can go into the *#*#4636#*#* menu via the dialer and change the radio mode to EvDO only and get 3g and can make calls and send SMS. If I choose CDMA/LTE it transitions to the LTE network then ****s the bed and won't send SMS or make phone calls. It does send MMS and have fully functioning data on LTE. However, then its just a tablet.
I'm going to wipe and reflash again, as I did mess with a whole bunch of crap now and see if I can get anything figured out.
Any ideas?

Guys with data issues try the apn backup and restore method. Some one needs to get the stock .xml out of a stock rom
Sent from my LG-LS980 using XDA Premium 4 mobile app

xblackvalorx said:
Guys with data issues try the apn backup and restore method. Some one needs to get the stock .xml out of a stock rom
Sent from my LG-LS980 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Its not apn
Sent from my LG-LS980 using XDA Premium 4 mobile app

jsteelm said:
Which baseband you got? I doubt we have different ones, since the phone I think only has 2 modems out.
Edit: After looking at the post here http://forum.xda-developers.com/showthread.php?t=2451426 I don't know how to distinguish v7 and v8. Regardless, I highly doubt that's the issue.
Have you tried changing your Preferred network type? Mine is set to "Global" On occasion, I've seen Data enabled turned off seemingly spontaneously on other devices, sooo check that too
Here's mine (attachment):
Click to expand...
Click to collapse
Baseband display number is the same from ZV7 to ZV8, hoping LG gives us an actual name for the next one.

What version of gapps are you guys using for this?

[Q] At&t S3 On MetroPCS LTE/TmobileLTE

Hi guys, i have a s3 i747 that has been unlocked and ready to be used on other gsm networks.
I went to a metropcs store and had the phone activated and sim card inserted, my imei was connected fine and everything went great.
I instantly had EDGE(1x or 2g) and even after hours of searching and phone calls to metropcs all i can find is APN solutions that dont work.
I currently live in Dallas/Ft Worth so i know the LTE coverage for Metropcs/Tmo is amazing it just ill not connect to LTE.
How do i get LTE to work on this device ??
Phone Specs
Has root
Unlocked
S3 i747 from At&t
Worked fine on At&T for LTE
Su keeps for closing at start because it says security issues
Stock rom on 4.3 but it says custom build under about settings for some reason.
Data speed is about 0.09-0.10mbps
Any help would be great. Sorry if this is a repost of other types of threads but i never found answers and did not want to re awaken old threads.

macklin345 said:
Hi guys, i have a s3 i747 that has been unlocked and ready to be used on other gsm networks.
I went to a metropcs store and had the phone activated and sim card inserted, my imei was connected fine and everything went great.
I instantly had EDGE(1x or 2g) and even after hours of searching and phone calls to metropcs all i can find is APN solutions that dont work.
I currently live in Dallas/Ft Worth so i know the LTE coverage for Metropcs/Tmo is amazing it just ill not connect to LTE.
How do i get LTE to work on this device ??
Phone Specs
Has root
Unlocked
S3 i747 from At&t
Worked fine on At&T for LTE
Su keeps for closing at start because it says security issues
Stock rom on 4.3 but it says custom build under about settings for some reason.
Data speed is about 0.09-0.10mbps
Any help would be great. Sorry if this is a repost of other types of threads but i never found answers and did not want to re awaken old threads.
Click to expand...
Click to collapse
This issue seems popular this week.
If it's like the others, it's an issue from unlocking. the nv file gets damaged. The solution so far is to use nv-reader-writer to copy another phone's nv file and replace yours with it.

have you tested *#*#4636#*#* method? just mess around with the preferred network and see
I'm on Tmobile and worked fine with LTE

Where could i find a nv file for the s3 i747?

pcshano said:
have you tested *#*#4636#*#* method? just mess around with the preferred network and see
I'm on Tmobile and worked fine with LTE
Click to expand...
Click to collapse
I have a little, i am now trying it will report back thanks guys.

macklin345 said:
Where could i find a nv file for the s3 i747?
Click to expand...
Click to collapse
either your own backup of imei or your friend's

pcshano said:
have you tested *#*#4636#*#* method? just mess around with the preferred network and see
I'm on Tmobile and worked fine with LTE
Click to expand...
Click to collapse
pcshano said:
either your own backup of imei or your friend's
Click to expand...
Click to collapse
So when i switch to wcdma it gets 4g but some reason my phone gets no signal, then gets barely any and it says emergency calls only. This is highly frustrating. Is there a guide for NV??

macklin345 said:
So when i switch to wcdma it gets 4g but some reason my phone gets no signal, then gets barely any and it says emergency calls only. This is highly frustrating. Is there a guide for NV??
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=2374063

I am in dallas and have the exact same issue. Same phone. I will research this more and if you find out anything, PM me.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

brad65807 said:
I am in dallas and have the exact same issue. Same phone. I will research this more and if you find out anything, PM me.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
Look on the post above yours, the solution is there.

Will this give me LTE? I am able to get h+ but my phone does love to set on edge.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

brad65807 said:
Will this give me LTE? I am able to get h+ but my phone does love to set on edge.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
You do realize 4g and LTE are the same thing?

BWolf56 said:
You do realize 4g and LTE are the same thing?
Click to expand...
Click to collapse
false. 4g is hspa+ and LTE is LTE.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

Jakeuten said:
false. 4g is hspa+ and LTE is LTE.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
he meant if you're on AOSP, then 4G = LTE.

brad65807 said:
I am in dallas and have the exact same issue. Same phone. I will research this more and if you find out anything, PM me.
hey man its very frustrating ive been trying to find every thing i can to solve this issue, i will keep in touch if i solve it brother
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
BWolf56 said:
Look on the post above yours, the solution is there.
Click to expand...
Click to collapse
Sir, i tried to use the nv tool but it keeps saying phone wont connect.
i have the drivers installed, it sees my ports for the phone, i go to connect and it does, but when i click read device it fails. Ive had no boxes checked, one box checked and both boxes for spc and fast read(i think it is) checked. No Go either way. Any suggestions for this? Then i can see if the NV Writer is a solution. Also i can use my own NV file right??? Or would that just be a corrupted file being reloaded ?? If thats the case how do i find a clean NV file for a Samsung Galaxy S3 i747 for AT&T??? Thanks again for the help brother

I would think you would need to load an NV of a different s3. I will try to load my NV here in a few and see what happens. PM me also
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app

Ok guys i tried some settings. a guy i know tried to inject the AWS for Tmobiles band freq. and it didnt work.
SOooooooooo im thinking we might have to skip AT&T phones on metro/tmo and get a tmo phone or a AT&T phone that supports AWS band freq.

brad65807 said:
Will this give me LTE? I am able to get h+ but my phone does love to set on edge.
Sent from my SAMSUNG-SGH-I747 using XDA Free mobile app
Click to expand...
Click to collapse
Wait....How are you getting 4g ?? it might not be LTE but da*m its faster than Edge. Could you tell me your apn, and your settings if you changed anything since you first switched to metropcs.
Like dial star, hash(number sign)twice, the 4636 and star,hash star, hash and go to device info, then screen shot, then scroll down and screen shot again where i can see "set preferred network"
also man are you sure you have the S3 I747 from AT&T??

Make sure you are checking your connection in Settings > About Device > Status > Network Type
You cant always trust what's displayed in the status bar. Especially when using a custom rom or using a device on a different network than it was intended for.

Yea man I know. I've checked everything and says edge still.
I think it's based on your radio and kernel. Brad what kernel and radio you using.?
I'm on 4.3 Rooted and stock.