Phone won't switch back to 3G from 2G - Nexus 5 Q&A, Help & Troubleshooting

Hi everyone.
I'm having a strange issue with my internet connection. The phone connects to 3G fine, but whenever a go into a zone with no or bad 3G coverage (at work for example) and the phone switches to 2G, it'll sometimes stay in 2G even after going into a good 3G coverage area (at home). It doesn't happen every time, but happens a lot. The only way to make it switch back to 3G is by forcing "WCDMA only" through the *#*#4636#*#* menu. I could just leave it there, but then I'd have no connection at all when I'm at work, so I switch it back to "GSM auto (PRL)".
Usually, when the phone parks in EDGE, the network settings don't change, it stays in "GSM auto (PRL)" but it just won't switch to H. Today, though, it switched to "GSM only" by itself, which it had never done before.
I had this same issue with my previous phone (Huawei ascend P6), so I thought that it was probably a problem with the SIM card, so I asked for a new one but nothing changed.
I've seen a few posts regarding similar issues but most of them are very old and none of them have been very helpful. I hope someone can give me a hand here.
I have a Nexus 5 running Android 5.0 - No root
Thanks.

My phone sometimes gets stuck in 3g instead of handing off to LTE. I just toggle airplane mode on and off and it immediately goes to LTE. I know it's not a fix, but it is a pretty quick way to get your data back.
Data connectivity issues are by far the most irritating, considering how much it costs to have a device like this...

Highway 55 said:
My phone sometimes gets stuck in 3g instead of handing off to LTE. I just toggle airplane mode on and off and it immediately goes to LTE. I know it's not a fix, but it is a pretty quick way to get your data back.
Data connectivity issues are by far the most irritating, considering how much it costs to have a device like this...
Click to expand...
Click to collapse
Thanks for the suggestion, but unfortunately that doesn't work for me. The only way is through the #*#*4363*#*# menu.

That sucks man.
I'm not sure there is a fix for this. Other than Google fixing it in the baseband. You would think that if the problem were in the source code that this would have been resolved by some of the devs here on XDA. I have had these problems for a few years, and on other devices as well.

I guess I'll have to live with it. Thanks anyway, man.
Sent from my Nexus 5 using XDA Free mobile app

Related

Widget turned off 4g/3g, can't turn it back from 1x

So I was playing around trying to delete widgets and one of them took out my 4g/3g connection. The icon is stuck in 1x, and I can't find any setting to change it back.
dail *#*#4636#*#* . This will take you to the network settings. select phone information. And then scroll down to set preferred network type.
I did that, set it to both LTE mode as well as CDMA+LTE/Evdo, but then even when rebooting to toggle it, it shows Network Type as CDMA - 1xRTT
I'm seeing other threads with people having issues with being stuck in 1x, so maybe its just not me, and I disconnected and just happened to not get it back
I am having this issue as well. Rooted last night. In the process of removing system apps removed something I shouldnt have. Went to flash my back up created by Rom Man only to find out it wasnt made, fail, so i flashed the custom rom by Chingy. Since flashing the rom I only have 1X service no matter what I set the phone to on the toggle.
its not just you bro ive been having 3g and 4g problems all morning. I am in queens NY...if they dont get this fix before the 14 days I am returning this phone and going back to t-mobile
I had thus problem. Just turn airplane mode on for a minute, then turn it off and you should get 3g again.
Sent from my HTC Thunderbolt using Tapatalk
cnmsales said:
I am having this issue as well. Rooted last night. In the process of removing system apps removed something I shouldnt have. Went to flash my back up created by Rom Man only to find out it wasnt made, fail, so i flashed the custom rom by Chingy. Since flashing the rom I only have 1X service no matter what I set the phone to on the toggle.
Click to expand...
Click to collapse
I'm not even rooted, and I began experiencing this issue this morning after having my phone off and plugged in last night.
EDIT: I tested the above fix, and it didn't work for me. Every time the phone tries to turn 3g on it will appear in the status bar for a split second and then everything turns off, even 1x. weird.
It's a network problem on verizon's end. I'm in Cincinnati and data is not working at all.
I am getting this too - according to tech support, there is a problem with the 4G network right now - however why it doesn't fall back to 3G I don't know (unless there is a problem with that too).
I too am in New York, so it might be localized to NYC - They even tried resetting something on my VZ profile.
I'm still on the call as we speak, but I get the feeling given the number of people reporting this, it is a VZ problem.
CorporateGoth said:
I am getting this too - according to tech support, there is a problem with the 4G network right now - however why it doesn't fall back to 3G I don't know (unless there is a problem with that too).
I too am in New York, so it might be localized to NYC - They even tried resetting something on my VZ profile.
I'm still on the call as we speak, but I get the feeling given the number of people reporting this, it is a VZ problem.
Click to expand...
Click to collapse
It's definitely not just a localized problem. I'm all the way out in Utah (no 4g service here yet) and the 3g is completely jacked.
Yup confirmed with tech support, there's a nationwide outage with 4g data and they are working it with the highest priority, the tech said. Ah the costs of new technology. Always will have issues at start.
Same thing here, Pensacola, FL. Just went out on my drive to work today, now it's 1x across the board for me and the gf...she has an incredible and I have the tbolt...
Add me to the list. Been on the phone with tech support for 52 minutes and counting. I'm on hold right now and thought I would check xda. Stuck in 1x if I even have anything. I am about 35 miles south of Pittsburgh, PA. Phone is completely stock and worked perfect yesterday. Also, the tech said DO NOT dial *228 from the Thunderbolt. I didn't, but he said for future referece it will force the phone to use only 1x and 3g. Nice to know lol they didn't say that crap when I bought it. At least their tech support guys are super friendly.
Weird. Im in Akron Ohio and have full bars 4G. Just did speed test and getting 15Mbps down 20 up. Downloaded app off market just to be sure and downloaded without a hitch. This must not be affecting whole nation. (Yes my Wi-Fi is off lol)
Just got off the phone with VZ Tech support. He said there is not an acknowledge problem with the 3G network right now (unlike the 4G), but he's sure that soon there probably will be.
He could not use my phone as an example case (to raise the trouble ticket) because I was unwilling to perform the last step in the troubleshooting process (reflashing the phone) - but I'm sure there will be others willing to do that and this will become a known issue soon enough.
Worst part is, even my 1X support keeps going in and out - probably because the 1X network in NYC is overloaded, because all those users usually on 3G are all on 1X now, and killing it
Confirmed here, too...all 1x, must be a nationwide 3g issue
Same here south of Chicago. Guess I won't even bother calling about it. Thanks for the info.
This is definitely a widespread issue... I am in Miami and I can't even gey 3G here... I am only getting 1X.. The weird thing is, my friend has a Thunderbolt too and she seems to ne getting 3G fine.... If anyone receives any worse from Verizon, please post ASAP!!!
Yup im located in Manhattan New York having the same exact problem since 8:30am today No 4G or 3G i hope they get it fixed Soon Let's Go Verizon!

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] Stuck on EDGE or GPRS

When I'm on data, my phone is stuck on EDGE or GPRS when it should go up to 3G or H+. I've tried restarting my phone, turning wifi on and off, turning data on and off and made sure my settings looked okay. Any help is appreciated!
Cataclysm 11/26, Franco r14, dalvik patch. And if it's relevant, I'm on Rogers wireless.
I'm not sure but doesn't Rogers use global frequency in which case you need the 821 model?
I've definitely had 3G and H+ on my N5 (abbreviations much?), but it just seems very inconsistent. It'll go from H+ to 3G, back to H+, then cut out completely, then sit on E or G for a while. Just trying to pinpoint the issue because it's getting annoying haha. Perhaps it's the frequency that's screwing it up but that's definitely not my area of expertise. I do have the D820 model if that's helpful.
I'm having exactly the same problem with Fido right now, I tried pretty much everything including
- flashing back the factory image
- tried every modems from the xda thread in the Nexus 5 Android Development section (currently my phone is on the D821 modem but it didn't change anything)
- changing my apn (but it was obvious that this was not the problem since the phone had a edge connection.
I'm really about to call Fido...
Still, I'm kinda glad to see that i'm not alone.
maybe that the data service in your personal area?
Well going back and forth between 3G and H is normal. It picks up H/H+ when receiving/transmitting and goes to 3G when idle to save power.
obsanity said:
Well going back and forth between 3G and H is normal. It picks up H/H+ when receiving/transmitting and goes to 3G when idle to save power.
Click to expand...
Click to collapse
I called Fido, the technical support told me that they had something that was blocking me from 3G (but he didn't tell me what it was, he just told me that something was blocking me...) I had my beloved H+ back for maybe a whole minute and then it just switched back to Edge network.
All I wanted to know was if many customers have reported the problem or if I were alone...
Maybe if I'm lucky my phone will get back its 3G soon just like you.
I'm still having the issue today.
I called back Fido and they tried different things like desactiving/activing back my line, "updating my line" and more without any success.
Then I called google and told them the problem. They will change my Nexus 5 for a brand new but at the same time I feel like it is a software issue and not an hardward one... Well, we'll see, I never had a problem like that with any other phone before and the Nexus 5 never had any problem with 3G before yesterday.
I haven't tried everything yet, maybe you could try :
If you are in a LTE area, can the Nexus 5 connect itself to this network? Nearest LTE area from where I live is like 40 minutes away, bit too far just for a test.
Try with a sim card from another company like Telus or Bell, is the phone connecting to the 3G network? (I though about this while calling Google..)
Well, hope that the next phone will be ok.
Here are the few pictures just to show you a proof that even when I request a webpage, the phone will stays on 2g only.
http://imgur.com/a/a0QJ7
mark1s said:
I'm still having the issue today.
I called back Fido and they tried different things like desactiving/activing back my line, "updating my line" and more without any success.
Then I called google and told them the problem. They will change my Nexus 5 for a brand new but at the same time I feel like it is a software issue and not an hardward one... Well, we'll see, I never had a problem like that with any other phone before and the Nexus 5 never had any problem with 3G before yesterday.
I haven't tried everything yet, maybe you could try :
If you are in a LTE area, can the Nexus 5 connect itself to this network? Nearest LTE area from where I live is like 40 minutes away, bit too far just for a test.
Try with a sim card from another company like Telus or Bell, is the phone connecting to the 3G network? (I though about this while calling Google..)
Well, hope that the next phone will be ok.
Here are the few pictures just to show you a proof that even when I request a webpage, the phone will stays on 2g only.
http://imgur.com/a/a0QJ7
Click to expand...
Click to collapse
Thanks for the update mark1s. Definitely let me know if a new phone fixes anything, although I'm also thinking it's a software problem.
The problem could just be that there happens to be patches of low coverage in the areas we're testing this out, which seems unlikely in big cities. But testing at work seems to have this problem, but testing this at home I pick up 3G and H+ just fine. Odd..

[Q] 4g data drops often...too often

i have to reboot in order for the 4g data to work again but it only stays on for about a minute and then it stops working again. everything else on the phone works ( text, voice, wifi etc...) I read somewhere that flashing different radios might fix it but im not sure about that. anyone else experience this and have a work around? i am currently on baseband i535VRLG1
Thanks In advance
i called Verizon and they said it may be the sim card thats damaged. if that were the case wouldnt voice and text fail as well?
frunas80 said:
i have to reboot in order for the 4g data to work again but it only stays on for about a minute and then it stops working again. everything else on the phone works ( text, voice, wifi etc...) I read somewhere that flashing different radios might fix it but im not sure about that. anyone else experience this and have a work around? i am currently on baseband i535VRLG1
Thanks In advance
i called Verizon and they said it may be the sim card thats damaged. if that were the case wouldnt voice and text fail as well?
Click to expand...
Click to collapse
I'm having the same issues recently. I've always gotten a 4G signal at my house (albeit not the strongest one) but lately, my phone will not hold on to the connection. When coming off of wifi, my phone will not acquire a data connection at all most of the time. I can still send/receive texts and calls but there is no 4G or 3G icon, no MMS, and no data. I have to toggle the radios on/off, or change from CDMA/LTE to Global (or GSM) and back, put in airplane mode, or restart.....there is no guarantee any one of those steps will work. Sometimes I have to do it repeatedly until I get my data connection back but it is only temporary.
I'm on the i535VRBMF1 baseband and updated to the ML1 modem to try and resolve but to no avail. I have replaced my sim card (as I initially though that was the issue) but it has not helped either.
The only thing I can think of is that my PRL may have been updated (it is currently 15310) and it's causing issues with the towers in my area.
I just got back from Hawaii and was also in San Diego for a few days and had absolutely no issues. It seems to only be an issue now when I'm at my house which makes me think it is something VZW network related and nothing to do with my phone per say. It's really driving me nuts though.
BTW, I'm in Southern California (Irvine).
I seemed to have fixed the issue by reverting the baseband back to vrlf2. I had to switch from global to 4g/LTE because I vegan to inch roaming charges lol. Verizon credited me and no dropped 4g signal. So I'm happy.
frunas80 said:
I seemed to have fixed the issue by reverting the baseband back to vrlf2. I had to switch from global to 4g/LTE because I vegan to inch roaming charges lol. Verizon credited me and no dropped 4g signal. So I'm happy.
Click to expand...
Click to collapse
What ROM are you running? I'm just curious what the implications are of running an older baseband (from the ICS days) on a newer ROM/Kernel.
I'm running cleanrom8.1 core edition. Slightly buggy but tolerable.
I was finally able to somewhat resolve my issue so I thought I'd post in case anyone else is experiencing something similar.
By using a few different apps and testing techniques, I was finally able to deduce that my issue had to do with EHRDP hand-off with the towers in the immediate vinicity to my house. I'm not sure what VZW did to them lately but it doesn't appear to be a problem in other locations so it seems like the issue is on their end (and not something to do with my phone).
In any case, it seems that when my 4G connection is weak and EHRDP is detected, it is dropping the connection entirely instead of handing if off to 3G (EVDO). The connection is also never transferred back when a 4G signal is detected either until I reset the connection where there is a moderate 4G signal.
Again, this only seems to be an issue when connected to the towers near my house and doesn't occur when traveling abroad.
To fix this, I have disabled EHRDP by doing the following:
1) Open the dialer and type *#97328640#
2) Select "[2] CDMA"
3) Select "[2] Data"
4) Select "[7] eHRPD e/disable"
5) Select "[2] Disable(*)"
6) Reboot the phone
Now my phone switches between EVDO revA. for 3G (using the native protocols) and LTE rather than relying on the broken eHRDP protocols. This workaround will have to suffice until VZW fixes stuff in my area but at least I don't miss MMS messages anymore.
Hope this helps anyone running into similar situations.

phone losing connection? going to sleep?

I've read a few others with this issue. Randomly the phone will seemingly loose connection will not recieve calls or texts until you pick it up and use it. And 50 texts start coming thru. Etc... I'm on T Mobil, have great signal. I've toggled 3g preferred, 4g preferred, and have developer options enabled, keep connection at all times. Still does it. Any thoughts???? Or help would be appreciated
DrmMaster said:
I've read a few others with this issue. Randomly the phone will seemingly loose connection will not recieve calls or texts until you pick it up and use it. And 50 texts start coming thru. Etc... I'm on T Mobil, have great signal. I've toggled 3g preferred, 4g preferred, and have developer options enabled, keep connection at all times. Still does it. Any thoughts???? Or help would be appreciated
Click to expand...
Click to collapse
Same problem at this post> https://forum.xda-developers.com/nex/help/vivo-nex-powering-off-t3831114/post77375427#post77375427
Go to Settings> More Settings > Task Timer> Scheduled On/Off
Saloei said:
Same problem at this post> https://forum.xda-developers.com/nex/help/vivo-nex-powering-off-t3831114/post77375427#post77375427
Go to Settings> More Settings > Task Timer> Scheduled On/Off
Click to expand...
Click to collapse
Thanks but this isn't my issue. Phone seems to struggle switching bands. From 4g to 3g and gets hung.
This phone connects to T-mobile 4g fine for data. But for sms and calls it goes to 3g, as it doesn't have VoLTE...seems like it doesn't switch all the time or get hung up. I've tried turning off 4g. This seems to help. But the phone has a definite issue. Not sure if it's considered normal since it's not utilizing 4g for voice and one of the little things you have to live with
DrmMaster said:
Thanks but this isn't my issue. Phone seems to struggle switching bands. From 4g to 3g and gets hung.
This phone connects to T-mobile 4g fine for data. But for sms and calls it goes to 3g, as it doesn't have VoLTE...seems like it doesn't switch all the time or get hung up. I've tried turning off 4g. This seems to help. But the phone has a definite issue. Not sure if it's considered normal since it's not utilizing 4g for voice and one of the little things you have to live with
Click to expand...
Click to collapse
There's definitely an issue, and it's not just with the Tmobile sim. Sometimes my china unicom Sim says no service too. But they won't say no service at the same time. It's one or the other. I've tried to switch the sims to other slots but same thing. I know its an issue with the phone because when my phone says no service, i look at my wifes phone and she has full bars on her phone. (pixel 2 xL in china with Tmobile USA Sim roaming on china mobile)
Must be a software issue
I have an similar issue... Just it's only for my 3G/4G after 10min of utilization i lost connection (call & sms work fine) and my phone say all is ok (I have the 4G icon...) I forced to disable / enable the Data 1 or 2 times for 3G/4G come back... I have Global Rom & SFR french network
Same problem 10 min data off for like 45 seconds n comes back by itself
Hmm similar problem. Having trouble getting calls on Tmobile. Lots of people calling and going straight to voicemail.

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