Database Info

[Q] Network Dropping

I just want to check in and see if any other Inspire owners are having this issue:
I have noticed that my phone occasionally drops the network connection and doesn't get it back right away. There are two different flavors of this issue that I have experienced:
1) I was walking my dogs today and the phone suddenly dropped it's connection to AT&T completely. After a few seconds, it reconnected and everything was fine. I was in an area with good coverage and the status bar showed no connection at all.
2) When home, I leave the Wifi on. Earlier today, when I tried to make a call, it simply wouldn't dial out. Then I tried to open a web page and nothing (after turning wifi off). I had to switch airplane mode on and back off to reset the connection. I also received several text messages at once, all of which had been sent hours before (as indicated by the time stamp on the message). It's almost like the phone has an issue swapping back and forth between the carrier connection and the wifi.
Is anyone else experiencing anything like this?

As an update, I noticed that when the wifi is on, there's a check mark under the H+ symbol (rather than the up/down arrows) and when I switch off Wifi, it doesn't go away. During this time, I have no cellular data. Switching airplane mode off and on doesn't seem to work. Sometimes it recovers on its own. Other times, I have to turn the wifi off and on several times.
This is annoying. It seems to be having issues doing the hand-off between Wifi and cellular data. This is really the only issue I have with the phone. Hope they roll out a fix soon.

I had the same problem. I thought it was because I had to add my own APN. (I could not switch my plan around because it was a work SIM). This caused SMS messages to not go out and an overall bad network experience on the phone. I have since returned the phone because I need a reliable network connection and the ability to send/receive SMS messages at all times. Once a fix is found I will be back. I liked the phone alot otherwise.

Are you by any chance using the SIM from another phone? I had the exact same issue yesterday and data did not work for me until I called AT&T and had them update IMEI number from Captivate to Inspire. Hope that helps.
Sent from my Desire HD using XDA App

AnyMal said:
Are you by any chance using the SIM from another phone? I had the exact same issue yesterday and data did not work for me until I called AT&T and had them update IMEI number from Captivate to Inspire. Hope that helps.
Sent from my Desire HD using XDA App
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Click to collapse
Nope. I made it a point to have them activate it in the AT&T store with a new sim because I had read about people having issues when they transfer their SIM. I also had and iPhone 4 previously, so transferring wasn't really an option. I'm definitely on the right data plan, too.
I left the wifi off all night and it did it to me again today. The check mark shows up under the H and it loses all data connectivity. I'm not sure what is causing this, but I'd love to know if there's some kind of workaround. I have messed with a few options (like the data always on option) and haven't had any luck.

AnyMal said:
Are you by any chance using the SIM from another phone? I had the exact same issue yesterday and data did not work for me until I called AT&T and had them update IMEI number from Captivate to Inspire. Hope that helps.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
I was using a SIM from another phone. It is the SIM card from my Work phone and I can not change the plan. It does have unlimited text and internet I just cant change it to a 4G plan. I had added the APN that is floating around here and that worked except I was having the same problem as the OP.

greyhulk said:
Nope. I made it a point to have them activate it in the AT&T store with a new sim because I had read about people having issues when they transfer their SIM. I also had and iPhone 4 previously, so transferring wasn't really an option. I'm definitely on the right data plan, too.
I left the wifi off all night and it did it to me again today. The check mark shows up under the H and it loses all data connectivity. I'm not sure what is causing this, but I'd love to know if there's some kind of workaround. I have messed with a few options (like the data always on option) and haven't had any luck.
Click to expand...
Click to collapse
It sounds like a replacement is in order.
stilger said:
I was using a SIM from another phone. It is the SIM card from my Work phone and I can not change the plan. It does have unlimited text and internet I just cant change it to a 4G plan. I had added the APN that is floating around here and that worked except I was having the same problem as the OP.
Click to expand...
Click to collapse
Like I said, my issue was very much like yours and OP's and adding cutom APN made no difference until I called AT&T and had them update IMEI on my account. Presto, all problems went away instantly. I understand that it's not an option for you, sorry

have you tried creating a new apn? try creating one using these settings.

mattbollenbach said:
have you tried creating a new apn? try creating one using these settings.
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Click to collapse
Just did this. Thought it might have resolved it at first, but it didn't. Basically, when I put the phone down for a while, it's like the data connection goes to sleep and doesn't wake up. When I turn the screen on, there's no mobile data. Sometimes, the dual arrows are visible under the "H", but only the up arrow is lit. Other times, the check mark (meaning no data) shows up under th "H" and stays there. Switching Airplane mode off and on will reset the connection.
I hate to say it, but the phone may have to go back. I love everything else about the phone, but this bug is too major to wait for an update or fix. What good is smartphone that doesn't get data reliably?

are you running the stock rom? i haven't been using that rom much so it may behave differently than the custom roms.
i don't think its a common bug. i would see if you can get a replacement phone.

mattbollenbach said:
are you running the stock rom? i haven't been using that rom much so it may behave differently than the custom roms.
i don't think its a common bug. i would see if you can get a replacement phone.
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Click to collapse
Definitely stock rom. No rooting or anything. I didn't notice this on the first day I had the phone because it was on Wifi almost all the time. I turned wifi off to test it and the issue persists. I suppose I should try resetting the phone first, though I'm not looking forward to setting it back up again. After that, I'll take it into AT&T. I'd love to keep the phone. Can't believe no one else is having this issue.

greyhulk said:
Definitely stock rom. No rooting or anything. I didn't notice this on the first day I had the phone because it was on Wifi almost all the time. I turned wifi off to test it and the issue persists. I suppose I should try resetting the phone first, though I'm not looking forward to setting it back up again. After that, I'll take it into AT&T. I'd love to keep the phone. Can't believe no one else is having this issue.
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Click to collapse
yeah, resetting it up is a pain. sorry, and i hope you get it fixed.

Just to say it again. I had the exact same problem as the OP. Maybe we both had a flaky phone?

Okay, turns out there's an issue with the AT&T tower closest to my house. I found out from a rep at AT&T. I haven't left home much at all this weekend, so I had no standard for comparison. I just verified it by turning the wifi off on my iPad and using 3G data. It has the same issue.
Of course, I had already done a factory reset and gone to the AT&T device support center, but at least my phone is fine.
As a side note: I love that Android restores your apps now. I always thought WebOS was awesome for doing that and that was what frustrated me most about Android, with as often as I swap phones.

Wow... Wish this was my problem. I switched back to my Palm Pre+ and my data works fine.

Data connection dropped for no reason

This is starting to bug me..... for no reason the 4g connection and even when I turn off the mobile network, wait a few minutes and turn it back on, it still wont work until I reboot the phone. Sometimes rebooting it doesn't work and I have to pull the battery.
Anyone know whats causing this? When this is happening I see the ^ arrow on the 4g connection lit up like a christmas tree but nothing is uploading and theres no data connection....... HELP!

Mine dropped Last night for the first time. When I first got the phone it flip from 3g to 4g at my job. Last night finally went dead. I rebooted and still no network. Then I used the new LTE switch to keep it @3g only. It worked.
Sent from my ADR6400L using XDA Premium App

reg83ny said:
Mine dropped Last night for the first time. When I first got the phone it flip from 3g to 4g at my job. Last night finally went dead. I rebooted and still no network. Then I used the new LTE switch to keep it @3g only. It worked.
Sent from my ADR6400L using XDA Premium App
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Click to collapse
Where do you get the LTE switch?
I have seen it step down to 3g and back up to 4g LTE but its just sometimes 4g just chokes for no reason......

Surprise u didn't hear about it. Its a free app. If it was a paid app it would sell like hot bread. Check the market. I can't post a link yet since I'm brand new to the site
Sent from my ADR6400L using XDA Premium App

same issue with mine in Denver

You also go to your dialer and type in *#*#4636#*#* to get to the menu.

same issue here Philadelphia sub
when i bought the phone, it is very easy to get 4G in my home and work
and recently, I only can get 3G in home and 1x in work.
and it is not stable, very easy to drop.

Yea sometimes 4g just hangs and it wont step down to 3g...... forcing me to reboot or hard reset .....

stoneskin2 said:
same issue here Philadelphia sub
when i bought the phone, it is very easy to get 4G in my home and work
and recently, I only can get 3G in home and 1x in work.
and it is not stable, very easy to drop.
Click to expand...
Click to collapse
Hey Stoneskin,
I live in Hawaii and I have the very same issue as well. I picked up 4g easily in the "so called" extended 4g coverage region when I first got the TB. Then about the middle of last week, poof, no more 4g except for in the true 4g areas. My thought is because so many people were having 4g connectivity issues in these extended area, VZW simply stopped allowing it as a troubleshooting measure that apparently is still going on. I brought this up to VZW tech support and they were clueless as usual. I also posted in the VZW Community Forum hoping to get an answer, but none thus far.

you could try dialing ##778# and pressing send, select edit mode, password is 000000 and then under modem settings change it to rev A. then press the menu button to save and reboot. it has helped me out in the El paso area. friend showed it to me the other day Far as i can tell is that it disables the new network that allows voice and data at the same time since that's the only difference i have noticed other than not loosing my connection anymore. I just a heads up this does not work on the latest version of virus rom RC1B3 sensless but did with previous version and several other roms i had tried

thetwiztidfreak said:
you could try dialing ##778# and pressing send, select edit mode, password is 000000 and then under modem settings change it to rev A. then press the menu button to save and reboot. it has helped me out in the El paso area. friend showed it to me the other day Far as i can tell is that it disables the new network that allows voice and data at the same time since that's the only difference i have noticed other than not loosing my connection anymore. I just a heads up this does not work on the latest version of virus rom RC1B3 sensless but did with previous version and several other roms i had tried
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Thanks for the tip, but it didn't work. VZW must have changed something to where extended coverage area no longer get 4g. Only those in true 4g areas. I really think this has a lot to do with the folks experiencing the constant drop 4g issues. They must have rationalized that if the extended area for 4g is not up to par and forcing 3g would be better. Only way I can explain it. From consistent 4g to only 3g. I sure miss the speeds.

[Q] Unable to get 4g

Alright, I'm a flash addict, love trying all the roms and well I was switching from bamf 2.0 beta 4, to Gingeritis VIII. I did my wipes and everything special, yet when I finally load it up, my 4g is not there. I'm in a 4g area, and I can get 3g but not my normal 4g. Not sure what to do, I even tried restoring back to my bamf rom with no luck. I had it before I did the switch and it was working fine. Anyone else having a issue or know what could be causing my problems? Forgot to mention I did try changing the radio settings and doing a fix permissions, neither did anything.

Did you update the radio?

Have you called Verizon to see if there is an outage? My 4g went down for a few hours yesterday, might just be them working on the network.

Radio was updated and I'll give big red a call, I mean its kinda odd I hold my 3g easily yet my 4g dies. I've had my 4g all night, and it did happen in the morning, so maybe they are working on it.

Called big red and they told me it would be back online soon just a short outage in the area. Came back online as I was typing this lmfao
XDA App - HTC: Thunderbolt

Hellation said:
Called big red and they told me it would be back online soon just a short outage in the area. Came back online as I was typing this lmfao
XDA App - HTC: Thunderbolt
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Everyone needs to remember, VZW is constantly upgrading/testing/fixing their LTE network. Things like this will be going on most likely all year as they continue to roll out to more cities/markets. First thing to do if your 4G starts acting up is just give them a call. More likely than not, they are doing work, it's just coincidence that it stopped working right after a flash

Yeah I can't get 4g to work either. It might be because I don't have it yet. I figured I would just flash rom after rom till I find one that works.
Just trying to get past 10 posts.

I am also in a 4G area (Los angeles) and had 4G all the time but when I upgraded to the Gingerbread leak I lost it and yes I flashed new radio, its been about a week now. Haven't called big red yet and also haven't heard of updates in my area but 1 week, that's a long time. I also reverted to froyo with accompanying radio and no change...wondering if anyone else in LA area has the same problem or do I have a problem with my phones hardware...

Be sure to reboot the phone like 5 times. That brought it back for me.

B3L13V3 said:
I am also in a 4G area (Los angeles) and had 4G all the time but when I upgraded to the Gingerbread leak I lost it and yes I flashed new radio, its been about a week now. Haven't called big red yet and also haven't heard of updates in my area but 1 week, that's a long time. I also reverted to froyo with accompanying radio and no change...wondering if anyone else in LA area has the same problem or do I have a problem with my phones hardware...
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ApplCobbler said:
Be sure to reboot the phone like 5 times. That brought it back for me.
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Click to collapse
I haven't had any data since friday afternoon. I had it connect to 3G earlier this morning but it promptly disconnected.
I've tried rebooting since friday. Setting to CDMA, enabling Rev A from ##778. Still nothing.
I'm on the launch stock rooted rom.

unlisted said:
I haven't had any data since friday afternoon. I had it connect to 3G earlier this morning but it promptly disconnected.
I've tried rebooting since friday. Setting to CDMA, enabling Rev A from ##778. Still nothing.
I'm on the launch stock rooted rom.
Click to expand...
Click to collapse
I called tech support and let them know of the issue, said there is no 4g outages in my area (los angeles) and was instructed to factory reset, which i do before any rom install then i gotta call back-if and when i get this resolved i will post the outcome.

Not sure what rom you're on now, but whenever I flash something if I lose data I have to go into the antenna settings and force 4G for a while and it will pop back up
Sent from my ADR6400L using XDA Premium App

I'm still on Baseband 1.16.00.0223 and Software 1.12.605.6
Could it be since i'm rooted and have not applied the OTA, that verizon is refusing to authenticate my data (connection)? Because when i look at lteonoff, it says i'm connected to whatever network i specify, (LTE, CDMA - eHRPD OR Rev. A [if i go into ##778])
If I go to options ->software update -> check new, the 3G or 4G icon will pop up and checks for a newer firmware. It tells me there is a new update and i can press okay, defer, or deny. As soon as i exit that and try to use the browser, the 3/4G icon goes away. Should I update to the MR1 OTA?

unlisted said:
I'm still on Baseband 1.16.00.0223 and Software 1.12.605.6
Could it be since i'm rooted and have not applied the OTA, that verizon is refusing to authenticate my data (connection)? Because when i look at lteonoff, it says i'm connected to whatever network i specify, (LTE, CDMA - eHRPD OR Rev. A [if i go into ##778])
If I go to options ->software update -> check new, the 3G or 4G icon will pop up and checks for a newer firmware. It tells me there is a new update and i can press okay, defer, or deny. As soon as i exit that and try to use the browser, the 3/4G icon goes away. Should I update to the MR1 OTA?
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Click to collapse
No, that's not why you don't have to worry about that just yet haha. Try and force 4G by putting it in LTE mode
Sent from my ADR6400L using XDA Premium App

Im just in a 3g area and everytime I go to a gigerbread rom and radio all I get is 1x. Then reverting started jot even fixing the problem. After about 10 flashes back and forth and rebooting a hung I finally ended up on Froyo with 3g. I'm staying here. Not worth my time to run gingerbread.

I was running a GB rom and this afternoon lost all data.
If I take out the sim card and reboot, I can get data for a minute or two...then it goes again.
I'm going back to stock and taking my phone in tomorrow.

Ugh to the guy that said call tech support to see if there is an outage, I don't work in a call center but do in a store and I hate when people come in or call for outages my suggestion is to follow @vzwsupport on Twitter they will let you know in no time and it keeps you from having to go through the menus and crap.
Sent from my ADR6400L using Tapatalk

I re-flashed back to stock and now I've got 4G back.
If anyone is having these problems after running GB I would use JCase's "back to Froyo" flash before trying anything else.

Verizon has had a known problem of thunderbolts loosing its 4g, 3g and 1x. I had the same problem over a month ago when my phone was only able to receive calls and text. Had no data.. so I called them they had me do a factory reset and it fixed it
Sent from my THUNDERBOLT using XDA App

turn off background data and auto sync then reboot when u get 4g wait a sec then check the internet to make sure its really on then turn sync etc back on back on

Cellular Data stops working after airplane mode or in\out of coverage return

Replicated this on 2 different Infuse 4G using 2 different SIM cards.
I notice that about 50% of the time when I come out of airplane mode, the data connectivity on the phone is gone. The only way I've been able to figure out how to restore it is to go into APN, open the apn settings page, then press save, and that seems to restore it.. yeah, annoying a little? hehe
The other time I notice it, while less frequently, is when I am out of coverage, ie an elevator or sub-teranian environment (hehe, I like that word better than basement), and then I return to coverage. turning airplane mode on then off doesn't restore it like many issues, nor does a complete reboot of the phone, so it's really strange. the only way I've been able to solve it is to go in and tap the apn settings then resave them, which obviously isn't the ideal way to resolve it.
Anyone else having this issue? I have replicated it on the 2 Samsung Infuse 4G devices I have, and they were both setup independently.

I flew the day after I got my Infuse and four days after I returned home on the next flight...No problems with airplane mode. Just playing around with it now, I'm still not encountering any issues.
I do have occasional issues that require me to enable/disable Wi-Fi...it'll only hop wi-fi spots once or twice, then I have to enable/disable wifi to get it to hop on a new one. Won't scan properly.

coopas said:
I flew the day after I got my Infuse and four days after I returned home on the next flight...No problems with airplane mode. Just playing around with it now, I'm still not encountering any issues.
I do have occasional issues that require me to enable/disable Wi-Fi...it'll only hop wi-fi spots once or twice, then I have to enable/disable wifi to get it to hop on a new one. Won't scan properly.
Click to expand...
Click to collapse
Are you AT&T? I'm wondering if it's something AT&T is doing to the phone then. I'm using an MVNO of ATT's sim card, so the apn that was on the phone originally was deleted and I replaced it with the new APN info.

Yes, I'm on AT&T directly (using an ancient Cingular 3G SIM)... obviously, I didn't have to change any of the APN info as a result.

coopas said:
Yes, I'm on AT&T directly (using an ancient Cingular 3G SIM)... obviously, I didn't have to change any of the APN info as a result.
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Click to collapse
I just tried my Tru Mobile (It's a global roaming voice\data sim). I changed the APN and it's doing the same thing. Bugger.
Would AT&T really script the phone to try and hassle someone for using another sim in the phone? Weird. Hopefully when a flashable ROM comes out it'll solve this issue as I never had it when using CM7 on my Inspire 4G, nor Aria, nor Captivate.

I always assume incompetence over malicious intent.
Sent from my SAMSUNG-SGH-I997 using Tapatalk

coopas said:
I always assume incompetence over malicious intent.
Sent from my SAMSUNG-SGH-I997 using Tapatalk
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Click to collapse
HAHA, that's funny. I always forget it's AT&T we're talking about.

I know this is an old thread, bu this happens to me too. I'm running Infused 1.6 and the same thing happens to me. Into and out of airplane mode I can receive but not send text messages. Or if I travel through an area where there is no connectivity then I receive but can't send text messages.
My fix is to restore the backup data for "[SMS/MMS Prefs Messaging 2.2.1]" using Titanium Backup.

Seems more like an issue with your sim cards than the phone.

verizon 4g radio

hi has anyonr else eperiance this same issue. whenever I go to an area that has little signal or turn the wifi off and on my phone resets to 3g. I have to keep going into the apn settings and change it from EHRPD to 4GLTE and then restart my phone. I cant change any of the settings oe delete extra APN's so I posted a screenshot and im hoping someone can help me out. Thanks
Sent from my SCH-I535 using xda app-developers app

plasmasnakeusa said:
hi has anyonr else eperiance this same issue. whenever I go to an area that has little signal or turn the wifi off and on my phone resets to 3g. I have to keep going into the apn settings and change it from EHRPD to 4GLTE and then restart my phone. I cant change any of the settings oe delete extra APN's so I posted a screenshot and im hoping someone can help me out. Thanks
Sent from my SCH-I535 using xda app-developers app
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Click to collapse
not that it helps much, but this is an issue seeming to affect alot of us. I havent been able to correct it yet however. If I find anything out I'll post it.

Just put on airplane mode and turn it back off. Boom your done.
Sent from my SCH-I535 using xda premium

Is that an app you use to change those settings or is that buried somewhere?
Sent from my SCH-I535 using xda app-developers app

I just checked as I haven't seen it yet either. Settings, More settings, mobile network, access point names
Kind of cool. Mine showed the first option chosen but it hope between 3G and 4G as usual. Choosing LTE made no difference for me. I have virtually no 4g signal where I love
Sent from my SCH-I535

xceebeex said:
Is that an app you use to change those settings or is that buried somewhere?
Sent from my SCH-I535 using xda app-developers app
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Click to collapse
Airplane mode is a feature of the phone and turns off all radios. You can hold the power button and choose airplane mode or use the quick toggle in the notification window. Since it sounds like you may be in an area with weak 4G, you can also use an app called Phone Info to set it to CDMA auto (PRL) under Device Information. You can also change it back to LTE/CDMA/EvDO if you want it to switch as normal.

With the Verizon S3, is there the need to do *228 (or *22899) ? I did this every so often on my old HTC Incredible.

frankybeenz said:
With the Verizon S3, is there the need to do *228 (or *22899) ? I did this every so often on my old HTC Incredible.
Click to expand...
Click to collapse
Doesn't work on LTE devices. A reboot essentially does the same thing. Some have recommended pulling the battery with the phone on, removing the sim card for about 30sec and then putting everything back in.

Thanks, I know what airplane mode is, wasn't sure where the APN setting was. I will look in to phone info though.
Sent from my SCH-I535 using xda app-developers app

Are you guys also experiencing the "No Sim Card" and "No Network Connection" issues?
Or is this an entirely different issue?

When this phone goes to 3g, it does seem extra bad on how long it takes to switch back to 4g. i have areas where i live where it goes to 3g when going in between hill (less than a 50 foot stretch) and it will not go back to 4g for over 10 minutes if i dont manually do it. Not to mention my LTE never goes above 10 mbps on the best days

Somewhat related...If you use Anycut to create a shortcut to IOTHiddenMenu, enter the ##DATA# Menu, edit. Under "Advanced", there is an LTE toggle, under "Other" > "HDR/1X" you can set the phone mode, and then under "Other" > "LTE APN Settings" you can somewhat modify the APN settings, reset and discard. If it asks for a password, it's 000000.

I gave these a try. I'm trying to find a way for my phone to favor 4G when there's a 4G signal, no matter how weak.
Yesterday I did a test, 3G with 3 bars vs 4G with 0 to 1 and 4G had consistently faster download speeds and shorter ping times. The upload varied from similar to 3G to slower.
Sent from my SCH-I535

Josolanes said:
I gave these a try. I'm trying to find a way for my phone to favor 4G when there's a 4G signal, no matter how weak.
Yesterday I did a test, 3G with 3 bars vs 4G with 0 to 1 and 4G had consistently faster download speeds and shorter ping times. The upload varied from similar to 3G to slower.
Sent from my SCH-I535
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Click to collapse
probably easier said than done. The phone info app can force LTE but you lose voice and text.

Ya I found that out yesterday when testing speeds. I went to send a text then make a call and no luck
Otherwise 4G service where I live could be excellent at one spot then a mile away no service. If I had excellent 4G consistently I'd consider GoSMS which I believe has the option for data text and also a separate VoIP app
Ah well hopefully something will be figured out eventually. With a strong 4G signal 4G is considerably faster and more consistent than my 20mbps home broadband
Sent from my SCH-I535

send it back
I've had similar issues with my network. I had no 4G in 4G areas, but mainly my wifi would disconnect randomly and 3G also dropped to 1X a lot. I ended up having to send it back and get another one. So far no issues. Also the new ones have an "Updated" sticker on them. I think it was just a software update they applied, but I never got the OTA on my old phone.

lefos123 said:
I've had similar issues with my network. I had no 4G in 4G areas, but mainly my wifi would disconnect randomly and 3G also dropped to 1X a lot. I ended up having to send it back and get another one. So far no issues. Also the new ones have an "Updated" sticker on them. I think it was just a software update they applied, but I never got the OTA on my old phone.
Click to expand...
Click to collapse
Your new phone came with an already updated firmware version I535VRALG1 instead of the original version I535VRALF2.

lefos123 said:
I've had similar issues with my network. I had no 4G in 4G areas, but mainly my wifi would disconnect randomly and 3G also dropped to 1X a lot. I ended up having to send it back and get another one. So far no issues. Also the new ones have an "Updated" sticker on them. I think it was just a software update they applied, but I never got the OTA on my old phone.
Click to expand...
Click to collapse
I'm having the same issue with my second replacement phone... My first one was replaced for an entirely different issue (loose home button).
Did you get the "No Sim Card" notification and "No Network Connection" message?
I think I might have to return this one as well...

PJnc284 said:
probably easier said than done. The phone info app can force LTE but you lose voice and text.
Click to expand...
Click to collapse
Not sure if anyone will have the same luck I have with the "Phone Info" app, but with it I was able to get my 4g service back and my phone is functioning normally again. Just open the app, select Device Information and scroll down to "Set preferred network type" and select "LTE/CDMA/EvDo" then get out of the app.. 4g should return shortly there after. When I looked at it, my device was set to "GSM/CDMA auto (PRL)"