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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
Click to expand...
Click to collapse
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.

4G Problem

I'm having a problem where my phone will not connect to 4G, it connected fine for about 2 weeks and then it stopped working. I have tried everything I can think of, restores, data wipes, new roms, the new radio, messing with modem settings, but I have had no luck, I'm starting to think that it is just my Thunderbolt and I will have to get a replacement I took this screenshot of the thing i think is werid, the phone recognizes the LTE network but GPRS service is disconnected. If anybody has any suggestions on something for me to try it would be greatly appreciated. Thanks

Flash the new radio that was made available today and see if that changes it. If not factory reset your phone and bring it in and say it stopped working.

schwab16 said:
I'm having a problem where my phone will not connect to 4G, it connected fine for about 2 weeks and then it stopped working. I have tried everything I can think of, restores, data wipes, new roms, the new radio, messing with modem settings, but I have had no luck, I'm starting to think that it is just my Thunderbolt and I will have to get a replacement I took this screenshot of the thing i think is werid, the phone recognizes the LTE network but GPRS service is disconnected. If anybody has any suggestions on something for me to try it would be greatly appreciated. Thanks
Click to expand...
Click to collapse
I been have problems with 4G since Saturday here in San Diego. It has been working fine for 3 weeks up to this point. I have 3-4 bars of 4G, but there's no network connection. The connection does NOT bounce between 3G/1X. It is solid 4G, however on the 4G LTE icon at the top, only the white arrow lights up, never the down arrow. When I run the ping test in the diag screen you posted there, it fails.
I went down to the Verizon store near my house and they had two display Thunderbolts. One of them was having the same exact problem as mine. While I was there, I rebooted mine and it magically started working right.
Then about a hour ago, it stopped working again. Rebooted twice and nothing. Called Verizon tech support just to let them know there might be an issue since my phone and the display phone werent working right. They transferred me to a
"4G specialist" who had me shutdown the phone while he "rebuilt" my account in their system. Booted back up and it works again.. Dont know if something he did fixed it, or the third reboot fixed it.
BTW, my phone is factory stock. Have it set to LTE/CDMA Auto in th phone settings.

Sigh... it's doing it again this morning

Same here, stuck using 3G until further notice.
Sent from my HTC Thunderbolt

Ya this problem is making me mad, I'm going on a trip, and when I get back if I still have problems I will just unroot and get a replacement, I really hope someone knows a fix to this though and posts it
Sent from my ADR6400L using XDA Premium App

My 4g and 3g have been on the outs today here in ohio. Never had the issue before today. I'm assuming its a network issue and not an issue with my phone. And I have the new radio fyi.
Sent from my ADR6400L using XDA Premium App

schwab16 said:
I'm having a problem where my phone will not connect to 4G, it connected fine for about 2 weeks and then it stopped working. I have tried everything I can think of, restores, data wipes, new roms, the new radio, messing with modem settings, but I have had no luck, I'm starting to think that it is just my Thunderbolt and I will have to get a replacement I took this screenshot of the thing i think is werid, the phone recognizes the LTE network but GPRS service is disconnected. If anybody has any suggestions on something for me to try it would be greatly appreciated. Thanks
Click to expand...
Click to collapse
-89 dB is pretty weak. -89 to -93 is what mine is at most places in my house. The only way it will go from 3G to 4G is if I walk over to the bedroom window facing the nearest celltower and then it will go to about -78 and switch to 4G.
When facing the tower do not "cup" the phone because I have seen as much as 10dB loss from my hand being between the phone and the tower.

crazed_z06 said:
Sigh... it's doing it again this morning
Click to expand...
Click to collapse
I have similar issues in San Diego as well. Fortunately I work from home, so I just enable WiFi for now.
Sent from my ADR6400L using XDA Premium App

crazed_z06 said:
Sigh... it's doing it again this morning
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Click to collapse
I can say the same thing in Phoenix.... you have good 4g days and you have bad 4g days. Like yesterday... up then down then up then down then nothing for an hr.... then up and down... an awesome way to tank the battery.
I wish Big Red would make up their minds... and fix these issues.

Same here in scottsdale, shows the 4g icon but there is no data till it switches back to 3g. Maybe just a coincidence but mine started yesterday after upgrading to the new radio and bamf 1.5

Shinanigans250 said:
Same here in scottsdale, shows the 4g icon but there is no data till it switches back to 3g. Maybe just a coincidence but mine started yesterday after upgrading to the new radio and bamf 1.5
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Click to collapse
Same for me in southern Scottsdale. Also started happen with new radio and bamf 1.5.
I'm going back to old radio and 1.4 for now...

crazed_z06 said:
I been have problems with 4G since Saturday here in San Diego. It has been working fine for 3 weeks up to this point. I have 3-4 bars of 4G, but there's no network connection. The connection does NOT bounce between 3G/1X. It is solid 4G, however on the 4G LTE icon at the top, only the white arrow lights up, never the down arrow. When I run the ping test in the diag screen you posted there, it fails.
BTW, my phone is factory stock. Have it set to LTE/CDMA Auto in th phone settings.
Click to expand...
Click to collapse
I'm having the same exact problem you are having in NYC and now in Boston while I am on vacation. If I force the phone to 3G, everything works beautifully, but to get 4G working again, I have to power off and on the phone.
Now, while in Boston, this issue happens when I am in an area of no cell signal (say the parking garage of my hotel) and then walk into an area with cell signal. I'll wake my phone from standby and will not see the 4G symbol, and then the symbol appears, but no data, like what you described.
I wonder if it has to deal with how the phone connects to the towers. Maybe the new radio will fix it? I'm currently on stock since it's still runs pretty damn well.
Just to mention, my phone does not suffer from the cycling issue between 3G and 4G.

Switched to bamf remix 1.5 with the same updated radio and 4g works great now. Kinda like the remix better.. win win

Did you try taking out your batter and sim card... waiting a minute and then putting them back in? I had this problem once where I was stuck in 3G in a 4G area and this is what tech support had me do. I didn't think it would work, but it did!

no 2g to 3g?

As the subject says recently when i turn off 3g to use edge and then go to turn back it wont let me
The only way i can get back to 3g is to turn data off and on manually by hitting airplane mode
Any suggestions?
Thanks

no one else has this issue?

I have the same issue it takes a long time to get 3g, I'm with vodafone au so the network is horrible. This might be the issue that the phone can get the troubled network.
Sent from my Nexus S using XDA App

I have this issue. Only fix I've found is airplane mode/battery pull.
However, if the phone automatically switches down to edge (2g), it will usually switch back on its own.
Don't even get me started on the frequent complete data shut-downs though, and that's with what little there is of the signal present. Completely ruined Google Voice functionality.
Sent from my Nexus S

Well IM on ATT in the northeast US. I upgraded my radio from XX to UCK and I think it solved the issue for the most. A lot of outages here tho after our storm (apparently only on ATT tho as USUAL since verizon and sprint seem to be fine. ATT blows!

[Q] Nexus S 4G - DATA DROPS

I have been having this problem with both of my Nexus S 4G ever since I got them 2 months ago.
My data drops out frequently and takes a while to get back up. If I have 4G enabled, then I have to manually reconnect it as it will not do it on it's own. This happens inside AND outside. Driving down the road or just standing in one spot.
I've tried all of the radios (basebands) and about 7 different ROMs and versions.
I've refreshed the data profile, PRL, and even tried the roaming Verizon PRL and Hybrid PRL.
Gone back to stock and tried everything from scratch. Still the same problem.
Dallas/Fort Worth Area
Network: Sprint
Baseband: D720SPRKE1
PRL Version: P:40447
I contacted Sprint and they just told me to update the profile & PRL.....
Any suggestions?

I'm not familiar with the CDMA nexus s, but are you able to change APN's? At one point I'd be able to connect to 3g (I have an I9020A), but every minute or so it would drop, so I fixed up the APN's for my carrier.

iv had a few data issues
forcing PRL and account updates has fixed it a couple of times
i'v bought used phones that iv had
to have sprint force update
im on LC1
[altho i cant tell any significant difference here]
and my prl is 61086
[a business account]
im currently on slim
make sure your mobile network
is set to roam
is not set to home only

Am I the only one with this problem? As I'm typing this I lost data but still had 3 bars. I never drop calls but only data.
Help please. This is driving me nuts.
Sent from my Nexus S 4G using xda premium

andrewddickey said:
Am I the only one with this problem?
Click to expand...
Click to collapse
no
i go thru periods of it acting bizarre
try disabling wifi and reboot
this USUALLY fixes mine till wifi is re-enabled
and i drop the sprint connection a few times
riding around
it then fails to re-acquire the IP address.
look in your status and see if you still have an IP
when your data fails
fwiw

I never use Wi-Fi. Ever.
Happens while using both 3G and 4G.
Sent from my Nexus S 4G using xda premium

4G is worthless here...
i dont even bother with the switch
does it do the same thing if you disable 4G?

I almost always have to use 4G (if possible) since 3G speeds are slower than dial-up.
I've tried rebooting and leaving 4G off, and still the same. Even tried going back to Gingerbread.
Sent from my Nexus S 4G using xda premium

andrewddickey said:
I almost always have to use 4G (if possible) since 3G speeds are slower than dial-up.
I've tried rebooting and leaving 4G off, and still the same. Even tried going back to Gingerbread.
Sent from my Nexus S 4G using xda premium
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Click to collapse
If going back to GB doesnt help, maybe it is hardware related?
---===:::Greetzz, jojoost:::===---
Sent from my iPad using Tapatalk HD

This is happening with BOTH of my NS4G.
Possibility that BOTH have hardware defects?

Do a profile and prl update
Hit the thanks button if i helped

R0M CHEF said:
Do a profile and prl update
Hit the thanks button if i helped
Click to expand...
Click to collapse
In the original post, I stated that was one of the things I've done.

have you checked to see if you have an IP address
when data fails?
mine shows "unavailable" when it's wonky
and wont re-aquire till i reboot.
i'v seen this on 2 phones
off and on including on oem 2.3.7
fwiw

andrewddickey said:
Am I the only one with this problem?
Click to expand...
Click to collapse
I have the same problems. From what I understand, its a problem with the hardware. I can confirm that's probably the case, because I've tried many different ROMs (stock, cm, etc...) and they all have the same radio issues (3g/4g and wifi)...

I have an NS4G in the DFW area and haven't seen the issues you're reporting. I'm currently on 4.0.4 with D720SPRLC1 baseband. Maybe I'm just lucky and have a good signal at work and home. It's very rare that I find an area of DFW where I don't get any data signal at all. Not sure what to suggest.

I get random drops too and i hate it. My 3g speeds are fairly good even above 1 mbps. Highest i ever got on 3g was 1.51 mbps

Mine will lose data if I'm in a coverage free area for an extended period of time, when I'm back in range 3g icon will show up just never reconnect. A reboot fixes it

Certain Areas
There are certain areas where I live that data just disappears. Although this is just a network thing I believe. It's weird though when I am driving it's like a 10 second drop and then all is good. Hope you get a solid fix!:victory:

Backup 4g Partition
REMOVED - was a bad idea.

I've actually replaced BOTH of the phones with brand new NS4Gs and they shipped with ICS.
Still the same problem.
This is driving me nuts. I was driving and trying to download Maps for the new phone from the Play Store and it took 6 tries. Kept saying RETRY.
What I've come to believe is happening is:
When 4G connects, 3G disconnects. When 4G drops (which is does frequently), 3G has to reconnect.
***Is there a way to keep 3G "on" in the background while 4G is connected?*** Maybe a way for the radio to transition back and forth?

[Q] Maintaining 4G connection issues?

I just got my m8, and it's completely stock, not even rooted yet. I'm having trouble maintaining a 4G connection. Even when I'm in an area with a strong signal, my phone eventually falls back to 3G and then won't upgrade to 4G until I enter and exit airplane mode again.
Is this common? any ideas on how to fix it before I just bring it back?
Thanks!
[Edit]
I went to the verizon store and got a new SIM card, and that's resolved the issue, I get a good solid 4G connection on a consistent basis. Maybe the old one wasn't maintaining connection? not sure but it's fixed now.
Thanks!

That's weird. Maybe you have a defective phone. Go get it exchanged.
Sent from my HTC One M8 using Tapatalk

I just got my M8 too and my 4G seems to be about the same as my last phone
...maybe a little bit better

jmchain said:
I just got my m8, and it's completely stock, not even rooted yet. I'm having trouble maintaining a 4G connection. Even when I'm in an area with a strong signal, my phone eventually falls back to 3G and then won't upgrade to 4G until I enter and exit airplane mode again.
Is this common? any ideas on how to fix it before I just bring it back?
Thanks!
Click to expand...
Click to collapse
DroidRootz said:
I just got my M8 too and my 4G seems to be about the same as my last phone
...maybe a little bit better
Click to expand...
Click to collapse
Have seen this personally on 3 devices (all purchased from different locations). 2 employees and 1 myself. Its like it takes longer to get a 4G signal. I cant figure it out, but have learned to deal with it. It eventually gets a 4G lock, just not as soon as I would like. I have noticed that Insert Coin gets a 4G signal faster than the official vzw based ROMs though. Not sure if placebo though as my only ways of testing is watching the phone to see when it gets a 4G signal, when I know its in a strong 4G zone.

I went and got a new sim card and surprisingly enough that seems to have solved the issue. Maybe there just wasn't a good connection with the old one? Not sure, but problem solved.
Thanks!

jmchain said:
I just got my m8, and it's completely stock, not even rooted yet. I'm having trouble maintaining a 4G connection. Even when I'm in an area with a strong signal, my phone eventually falls back to 3G and then won't upgrade to 4G until I enter and exit airplane mode again.
Is this common? any ideas on how to fix it before I just bring it back?
Thanks!
[Edit]
I went to the verizon store and got a new SIM card, and that's resolved the issue, I get a good solid 4G connection on a consistent basis. Maybe the old one wasn't maintaining connection? not sure but it's fixed now.
Thanks!
Click to expand...
Click to collapse
I had similar issues when I got mine. I switched from my S4 to the M8 and had to get a new Nano SIM card to fit the M8. It had issues with connecting to any data connection but I was able to fix it by taking out the SIM and then pushing it back in but not too firmly. I suppose it was the positioning of the SIM with the tray.