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[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 Problem, What Should I Do?

I just started having this issue, i can't connect to any data at all, i have tried battery pulls, using restart connection, running different roms, using restores where everything was working, doing a full wipe and then installing a new rom, but still no luck. Should i try just a factory restore? i also read that taking out the battery, then take out the sim card, booting the phone up with out the sim card in, getting errors and then shut it off and then put the sim card back in works, but im not sure which of those to try, any advice?

when that happened to me i did a factory reset and it worked afterward

Check around first, see if Verizon is having problems in your area. I know recently places have been popping up with sporadic outages.

Bigandrewgold said:
when that happened to me i did a factory reset and it worked afterward
Click to expand...
Click to collapse
But isn't installing a rom and wiping the data and cache the same as a factory restore?

I had this happen to me earlier this week. When I called Verizon support they told me that towers were down in my area, they told me the same when I called back the next day. Meanwhile, others who own the TB seemed to be having no issues. Finally I took my phone into a Verizon store and they are shipping me a replacement phone. They would not swap my phone in the store since I was a whopping 4 days beyond the 14 day return window...but, I digress.
The one workaround that I found in the meantime is to switch your modem settings. Dial ##778, select Edit Mode, enter 000000 as the password and select Modem Settings. Select Rev. A and choose Enable. Press your menu button and select Commit Changes. Your phone will reboot and you can use the LTE On/Off App (or just dial *#*#4636#*#* and choose Phone information) and switch the radio to CDMA Auto (PRL). That enabled me to have 3G data, though it seems extremely slow relative to 3G on my OG Droid. But, in a pinch it seems to work.

One additional bit of advice, in case you are running a custom ROM. I was running Virus ROM and ##778 would crash whenever I tried to run it. In order to swap the modem settings, I had to flash back to stock and make the updates, then flash back to Virus. I don't know if this is specific to Virus, but just an FYI.

Just tried on das bamf and worked fine (##778) must just be virus.
Sent from my ADR6400L using XDA App

SmokingPope said:
I had this happen to me earlier this week. When I called Verizon support they told me that towers were down in my area, they told me the same when I called back the next day. Meanwhile, others who own the TB seemed to be having no issues. Finally I took my phone into a Verizon store and they are shipping me a replacement phone. They would not swap my phone in the store since I was a whopping 4 days beyond the 14 day return window...but, I digress.
The one workaround that I found in the meantime is to switch your modem settings. Dial ##778, select Edit Mode, enter 000000 as the password and select Modem Settings. Select Rev. A and choose Enable. Press your menu button and select Commit Changes. Your phone will reboot and you can use the LTE On/Off App (or just dial *#*#4636#*#* and choose Phone information) and switch the radio to CDMA Auto (PRL). That enabled me to have 3G data, though it seems extremely slow relative to 3G on my OG Droid. But, in a pinch it seems to work.
Click to expand...
Click to collapse
Thanks, that got my 3G working, will i still have 4G with it on that setting? or do i need to switch it back to use 4G or do i get the Lte on/off app?

*#*#4636#*#* and tap on phone information and go to the box that says "CDMA+LTE" THATS default 3g and 4g and for only. 3g is auto prl
Sent from my ADR6400L using XDA App

schwab16 said:
Thanks, that got my 3G working, will i still have 4G with it on that setting? or do i need to switch it back to use 4G or do i get the Lte on/off app?
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Click to collapse
You won't get 4G on that setting, it turns the 4G radio off entirely. You would need to switch back to the CDMA + LTE/EvDo auto or LTE mode settings to get 4G. Ultimately, my issue ended up being a defective phone. You can try to wait it out and see if you get 4G back later, but you may just have a faulty device.
If that is the case, just remember to follow the instructions that jcase posted in the development forum to get your phone back to stock with s-on before taking it into a Verizon store. If you bring a rooted device in, I suspect they aren't going to honor any sort of warranty.

My phone had this problem too... turns out when I went into a 4g area the mobile network box got unchecked in the wireless & network settings.

I use the "verify with multiple devices method". I am tired of the standard VZW "towers are down in your area" bs answer.
If another tb, xoom, and bb have service and my tb doesn't, that tells me something is wrong.
I have a feeling that there is something seriously wrong with the network (implementation or backend hardware) that is causing this with 4G devices. Either that or the tb is to blame entirely for Verizon's 4G issues...... /rantoff..... LOL
Sent from my ADR6400L using XDA App

schwab16 said:
I just started having this issue, i can't connect to any data at all, i have tried battery pulls, using restart connection, running different roms, using restores where everything was working, doing a full wipe and then installing a new rom, but still no luck. Should i try just a factory restore? i also read that taking out the battery, then take out the sim card, booting the phone up with out the sim card in, getting errors and then shut it off and then put the sim card back in works, but im not sure which of those to try, any advice?
Click to expand...
Click to collapse
Was having issues earlier today with 4G. The connection and signal were good, but no data would download. The white up arrow would light up, but the down arrow never would. It was like that for about 4 hours. It's working great now and speeds are disgustingly fast.. maybe VZ doing some maintenance?
EDIT: THis is in San Diego.

schwab16 said:
I just started having this issue, i can't connect to any data at all, i have tried battery pulls, using restart connection, running different roms, using restores where everything was working, doing a full wipe and then installing a new rom, but still no luck. Should i try just a factory restore? i also read that taking out the battery, then take out the sim card, booting the phone up with out the sim card in, getting errors and then shut it off and then put the sim card back in works, but im not sure which of those to try, any advice?
Click to expand...
Click to collapse
Factory Reset from bootloader worked for me. I had the exact same problem. Tried everything that was suggested, but no data still. Only enabling Rev. A worked.

Thanks for the help, the problem I'm having now is I got 3g but I can't get 4G back, I have tried to switch my settings back to get 4G using LTE on/off and by dialing the number, and I have had no luck, in those menus it tells me service type LTE but it is disconnected, and I get no data or 4G symbol in the status bar, so I'm confused if I maybe messed up a setting or what, so should I just try a factory restore via the bootloader and see if that works? Any other suggestions ?
Sent from my ADR6400L using XDA Premium App

schwab16 said:
Thanks for the help, the problem I'm having now is I got 3g but I can't get 4G back, I have tried to switch my settings back to get 4G using LTE on/off and by dialing the number, and I have had no luck, in those menus it tells me service type LTE but it is disconnected, and I get no data or 4G symbol in the status bar, so I'm confused if I maybe messed up a setting or what, so should I just try a factory restore via the bootloader and see if that works? Any other suggestions ?
Sent from my ADR6400L using XDA Premium App
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Click to collapse
I would try the factory reset from bootloader, but I was on the stock ROM when I did it. So I don't know if that would matter or not.

schwab16 said:
Thanks for the help, the problem I'm having now is I got 3g but I can't get 4G back, I have tried to switch my settings back to get 4G using LTE on/off and by dialing the number, and I have had no luck, in those menus it tells me service type LTE but it is disconnected, and I get no data or 4G symbol in the status bar, so I'm confused if I maybe messed up a setting or what, so should I just try a factory restore via the bootloader and see if that works? Any other suggestions ?
Sent from my ADR6400L using XDA Premium App
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Click to collapse
Just to reiterate, my 4G never came back. The phone was just broken. It sounds suspiciously like you are having the same issue. Maybe there is a manufacturing defect that makes this issue more prevalent with this phone right now? If you are in the 14 day return period, set your modem and radio settings back and get into the store ASAP to swap the phone out. Otherwise, call customer service and have them replace the phone. They will overnight you a new phone if you complain enough.

Ok I was looking through my modem settings after dialing ##778 and I had changed the rev a. Setting to enable, that got my 3g working, but what is eHRPD is that would I should have it on too have 3g/4g? But everytime I have tried setting it to that I get no data so is that the setting that is messed up?
Sent from my ADR6400L using XDA Premium App

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.
Click to expand...
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.

[Q] No Edge, 3g or 4g

Last week I stopped being able to use the internet, marketplace and streaming service on my Galaxy S 4g unless I'm on wi-fi. Today I realized it appears as if I'm no longer getting edge, 3g or 4g service. I have bars, but nothing next to it telling me what network I'm on.
My phone is rooted to stock with bloat removed and has been for months. Any ideas on how to fix this?

Try toggling airplane mode. Might help to remove your SIM card & ensure the contacts are clean then reseat it.
Sent from my SGH-T959V using XDA App

I'm having the same issue after moving CM7 => MIUI.
I've moved back to stock ROM XXJVT, but still not able to connect to 2G/3G. Anyone help.....
Btw, I'm sure the APN settings are correct and packet data is checked.

omer9 said:
I'm having the same issue after moving CM7 => MIUI.
I've moved back to stock ROM XXJVT, but still not able to connect to 2G/3G. Anyone help.....
Btw, I'm sure the APN settings are correct and packet data is checked.
Click to expand...
Click to collapse
You are in the wrong forum.
Sent from my Nexus One using XDA App

patientx1013 said:
Last week I stopped being able to use the internet, marketplace and streaming service on my Galaxy S 4g unless I'm on wi-fi. Today I realized it appears as if I'm no longer getting edge, 3g or 4g service. I have bars, but nothing next to it telling me what network I'm on.
My phone is rooted to stock with bloat removed and has been for months. Any ideas on how to fix this?
Click to expand...
Click to collapse
Follow these steps.
Settings,wireless and network,mobile networks,accesspoint names,and then check t-mobile us.
Sent from my SGH-T989 using XDA Premium App

try taking the battery out for 10min

I guess I figured it out. But it doesn't seem very logical, but hey it works.
I changed the url of my provider from "live.vodafone.com" to "live .vodafone.com" (watch the space between live and .vodafone) and all of a sudden E/G/H appeared in the status bar.

Still, double check the APN settings, make sure everything is entered in right (proxy, username, authentication type, etc). Were you able to send pictures still? You need to make sure it's not a hardware problem.

Nexus 5 D820 not staying on network in Canada EFS problem??

Hello there,
I will try and explain this in the most detail I can.
I own a nexus 5 32gb phone, my wife owns a 16gb nexus 5. I was on prepaid service for the last 2 years with a company that did not offer LTE. I have switched to FIDO and they do have LTE. Her phone works great, texts send/recieve, mms, data all works as it should. My phone does not. it connects then shows LTE but cant do anything not even phone calls, sometimes a reboot works for a time other times not at all.
In comparing the 2 I realized I may have changed something long ago on mine and that is why it wont work right. If I go to the hidden settings page on both phones the difference I notice is that her phone shows ping google.com and mine shows ping google.co.uk.
For some reason I remember changing something that perhaps had to do with the radio way back to boost my service at the time. I have no idea how to change this back as the efs shows the uk ping. I assume this is why I cant have a proper working phone but maybe someone can work that out.
FYI, I have flashed every google version I could find and the same thing happens, tried flashing radios same thing. select USA band in hidden 4636 menu and it wont stay on data.
I am at a standstill now and need help. I hope this explains the problem and someone who knows can help me.
If I put my sim in wife phone it works as it should with no problems, I tired my sim in a phone at FIDO store and it works exactly like it should too so I know it is the phone.
I know the efs is specific for every device and there is no one size fits all for it, but is there a way to return it to true default? If not is there a way to rebuild it?
My phone at the moment is causing me grief I hope the community can figure this one out. I am willing to try anything at all, custom roms, efs wipe whatever makes this work
I have done wiping, roms etc before, it's been awhile but I am ok with doing any procedure you recommend
Thank you for your time, if you need more info, screenshots, etc let me know
data, signal, calls, sms wont stay on, loose signal all over

I think you might have messed with your apn. Go to settings, wireless and networks, more, cellular network settings, access point names. Make sure what's in there is setup the same as your wife's phone.
Sent from my Nexus 9 using XDA Free mobile app

jd1639 said:
I think you might have messed with your apn. Go to settings, wireless and networks, more, cellular network settings, access point names. Make sure what's in there is setup the same as your wife's phone.
Sent from my Nexus 9 using XDA Free mobile app
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Click to collapse
APN is fine, same as hers. Actually not now since i changed to 3g. But in testing the LTE it was the same

I have reverted to 3G and data seems better, at least stable. Getting lots of service drops though and sms are delayed sometimes dont come at all

jd1639 said:
I think you might have messed with your apn. Go to settings, wireless and networks, more, cellular network settings, access point names. Make sure what's in there is setup the same as your wife's phone.
Sent from my Nexus 9 using XDA Free mobile app
Click to expand...
Click to collapse
FIXED! After 2 months of trying to figure this out it dawned on me. When prying the volume side of the back cover to fix my chargin port I must have inadvertently dislodged the black cable from the motherboard up top. upon first look it seems to be in place, upon further light inspection I could see it was not all the way on. Reconected it and BOOM full signal, full LTE and no other issues!!
I am so happy, lets party!