[Q] Switching to 2G - Samsung Galaxy Nexus

I'm looking at some other threads on similar problems, but I'm wondering why my GNexus doesn't go to 2G automatically.
I must manually change it to 2G/Edge every time. All the other folks around me seem to continue without issue and are able to make calls although their signal isn't too hot. GetRIL says baseband and RIL match. I'm using XXLA2 on AT&T in NYC.
Tried searching around for a solution, but I'm not finding anything.
Any help would be appreciated and I hope this hasn't been asked a million times before as I was unable to find a solution. Thanks.

As in it doesn't change from 3g/4g to 2g automatically when there is no 3g/4g signal available?
Sent from someone's Galaxy Nexus running AOKP + Franco

theking_13 said:
As in it doesn't change from 3g/4g to 2g automatically when there is no 3g/4g signal available?
Sent from someone's Galaxy Nexus running AOKP + Franco
Click to expand...
Click to collapse
Right, it just continues to show No Connection or is it Signal...? Anyway, I can't make calls, go online, anything until I switch to 2G. Is that normal? Lol.

Weird... mine switches to E when I'm in a bathroom depositing =]
- Google

Related

Data dropping while I have full 4g signal (ATT)

Hello,
I am running AOKP JB v1 on ATT Gnex. I havent installed any other kernels or radios. My issue is that, while i have full coverage in an area i know i have data, while my signal bars show full with "H" above them, i cannot get data. Cannot send picture messages or go to google market or use browser. I think i need to flash a different baseband or radio but i have no idea which one i should be using or what is compatible. Can somebody please point me in the right direction. It is rather annoying to loose data constantly.
Well I really need help now. I flashed a radio but obviously it wasnt meant for JB. I have signal enough to text and make phone calls but no data at all now. It shows all grey bars with the H above it. Can anybody link to a working JB radio/baseband for GSM please?
I believe i should be use 9250XXLF1 but i cannot find a download for it
Edit: Found it here:
http://forum.xda-developers.com/showthread.php?t=1405345
Try going back to stock completely. I do think its rather a network issue. Do you have the correct data plan for it?
Sent from my Galaxy Nexus using xda app-developers app
I have been using the UGKL1 radio on ATT in Northern California - has worked well for me. Obviously, radios are very dependent on location but this radio was a big improvement for me.
They changed something with the network, allot of users reporting issues of data drops because its switching from umts to hspa and hspap constantly.
Sent from my Galaxy Nexus using Tapatalk 2
I see it constantly changing between the listed signals although the status bars show full w/ "H" above them. Tried multiple different roms. I switched from lumia 900 to this phone so my plan is good up to LTE. Shouldnt have an issue w/ that. Would flashing a different radio help?
HSDPA:8
HSPA+: 15

[CM10] loosing data connection until reboot

Hi,
Usually i have wifi enabled permanently, as i have coverage at home, university and t-mobile hotspots. But my nexus sometimes does not get a working data connection if i disable wifi or come back from flight mode. Icon shows reception and 3G/H/H+ but stays grey. I can't access any internet services like mail,http...
If i reboot the device, everything is fine.
Any ideas ?
Latest (-3days behind max) CM10 with stock kernel, XXLF1 baseband, tmobile germany
P.s.: tried to search with google, found nothing. Currently the nexus is my only internet-capable device, so i am sorry if repost...
Sent from my Galaxy Nexus using xda premium
Try toggling airplane mode?
Beamed from my Grouper.
Same issue here. Get random signal losses and afterwards no data until reboot. I've experienced this with other Roms as well. Toggling the airplane mode sometimes help for data recovering.
Try setting your minimum CPU above 500 Mhz...
How can that change the signal issues?
Maybe toggling wifi helps (sometimes)
un.droid said:
Same issue here. Get random signal losses and afterwards no data until reboot. I've experienced this with other Roms as well. Toggling the airplane mode sometimes help for data recovering.
Click to expand...
Click to collapse
I have exactly the same problem on galaxy s. The status bar shows mobile network connection, but the symbol stays grey, and connection is not there. Reboot is the only safe way to solve that. Sometimes toggling airplane mode helps, last time toggling wifi helped.
Changing APN seems to be helpful. Someone that looks good with the current provider.
almost same issue for me...
but there is some weird difference...
I have a GSM Galaxy Nexus latest radio, consistent RIL and latest CM10.
I lost data suddenly while browsing.
I can see blue signal with 3G, start browse and it change to H/H+. No problem until now but, when data returns to 3G, all further requests stay "pending" for a while (phone call is not working in this state!!!!). after a minute.... CRASH, all signal lost. Something like a reset.
even toggling data does not work... I simply have to wait that the phone decides to work again.
I'm from Italy, carrier is Vodafone. Someone with some hint?
thanks!
martin_nrw said:
Changing APN seems to be helpful. Someone that looks good with the current provider.
Click to expand...
Click to collapse
It's the correct APN, did autoconf OTA.
Sent from my Nexus 7 using xda premium
un.droid said:
How can that change the signal issues?
Click to expand...
Click to collapse
Because on earlier builds of some AOSP ROMs, the radio had a tendency to go to sleep and not wake up when the frequency dropped too low. The common fix at the time was to use a higher number for the minimum frequency...
Read you must...
I was looking up the answers to this same problem. When I'm staying still my internet is fine but when I'm driving down the road I lose signal. I did a google search for "cm10 losing data connection". This is a "normal problem" it is caused from changing between 3g and LTE 4g. I'm still looking up solutions to this problem.

Odd data problem

Ok so I have an unlocked LG Nitro HD with custom ROM (CM10) and it has a very weird problem. I've tried two different AT&T MVNO SIM cards (AirVoice and Consumer Cellular) both have the same issue. My data signal keeps changing from H to H+ and occasionally to 3G like every few seconds regardless of where I am using the phone even outside. I don't understand what the problem is. What could be the issue?
screwregi said:
Ok so I have an unlocked LG Nitro HD with custom ROM (CM10) and it has a very weird problem. I've tried two different AT&T MVNO SIM cards (AirVoice and Consumer Cellular) both have the same issue. My data signal keeps changing from H to H+ and occasionally to 3G like every few seconds regardless of where I am using the phone even outside. I don't understand what the problem is. What could be the issue?
Click to expand...
Click to collapse
Are you able to use mobile data or are you just wondering why the icons go back and forth?
lordcheeto03 said:
Are you able to use mobile data or are you just wondering why the icons go back and forth?
Click to expand...
Click to collapse
Data does work but it seems to drain the battery with the networks constantly switching and on occasion I get a "No Connection" screen on certain apps, I guess because if I open an app while its swapping networks the app cant connect. It's strange.
screwregi said:
Data does work but it seems to drain the battery with the networks constantly switching and on occasion I get a "No Connection" screen on certain apps, I guess because if I open an app while its swapping networks the app cant connect. It's strange.
Click to expand...
Click to collapse
Yeah, constantly swapping networks will drain the battery.. what about your APN settings?
lordcheeto03 said:
Yeah, constantly swapping networks will drain the battery.. what about your APN settings?
Click to expand...
Click to collapse
They are set up properly.
I had another odd problem, just a few minutes ago was texting someone and all of a sudden phone froze while vibrating then restarted! Don't know if that's a bug in CM10 or what, maybe the network swapping is as well.
screwregi said:
They are set up properly.
I had another odd problem, just a few minutes ago was texting someone and all of a sudden phone froze while vibrating then restarted! Don't know if that's a bug in CM10 or what, maybe the network swapping is as well.
Click to expand...
Click to collapse
Maybe make a backup of your CM10 and try flashing a different ROM not based on CM10.
screwregi said:
They are set up properly.
I had another odd problem, just a few minutes ago was texting someone and all of a sudden phone froze while vibrating then restarted! Don't know if that's a bug in CM10 or what, maybe the network swapping is as well.
Click to expand...
Click to collapse
I think this is the same issue that I recently fixed in quattrimus. I will try to get the fix included in the cm kernel soon. You might try my Rom to see if the fix works.
lordcheeto03 said:
Maybe make a backup of your CM10 and try flashing a different ROM not based on CM10.
Click to expand...
Click to collapse
I tried installing CM9 and it appears to have fixed the problem, the phone doesn't try to connect to the H+ network anymore, only the H network and seems to stay on it so far. I did see it quickly go over to the 3G network but it doesn't appear to be causing any issues, it went right back to the H network. However, I really wish the CM10 ROM worked right, as CM9 is so old...
screwregi said:
I tried installing CM9 and it appears to have fixed the problem, the phone doesn't try to connect to the H+ network anymore, only the H network and seems to stay on it so far. I did see it quickly go over to the 3G network but it doesn't appear to be causing any issues, it went right back to the H network. However, I really wish the CM10 ROM worked right, as CM9 is so old...
Click to expand...
Click to collapse
CM10 is snappy and oh so buttery smooth, I give you that. On another note, did you try any other CM10 variants? I'd give tdmcode's AOKP a spin. He says he might have fixed that problem you were talking about in his build.
lordcheeto03 said:
CM10 is snappy and oh so buttery smooth, I give you that. On another note, did you try any other CM10 variants? I'd give tdmcode's AOKP a spin. He says he might have fixed that problem you were talking about in his build.
Click to expand...
Click to collapse
I downloaded the CM10 ROM. It seems to behave slightly differently. It stays on H normally, but when I start to do something with data, it will go to H+ until the data loads, then go back to H. So far no disconnects, I'll keep you posted. Right now I have very limited data, I'm switching to T-Mobile as soon as UPS decides to deliver my SIM card (just found out they have a 1900MHz HSPA+ network in my area!) I'll be able to test it better then, but for now I'm trying to stick to wifi, especially since I wasted so much data tonight playing around with this stuff, lol.
screwregi said:
It stays on H normally, but when I start to do something with data, it will go to H+ until the data loads, then go back to H.
Click to expand...
Click to collapse
This is how it's supposed to work.
drumist said:
This is how it's supposed to work.
Click to expand...
Click to collapse
Ditto... H and 3g are subsets of each other. Namely they can handle simultaneous voice and data 4G (h+) and lte can only handle data. So it switches back to H so you can receive and make calls plus it uses less battery. If you are on either 4G techs and receive a phone call while downloading it will automatically switch to H from h+ or lte, this is why. The only way you will never see this is on an AT&T rom where it only has 4G and lte icons.
Sent from my LG-P930 using xda app-developers app
Swetnes said:
Ditto... H and 3g are subsets of each other. Namely they can handle simultaneous voice and data 4G (h+) and lte can only handle data. So it switches back to H so you can receive and make calls plus it uses less battery. If you are on either 4G techs and receive a phone call while downloading it will automatically switch to H from h+ or lte, this is why. The only way you will never see this is on an AT&T rom where it only has 4G and lte icons.
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
I have LTE disabled, I'm not using the phone on AT&T.
Swetnes said:
Ditto... H and 3g are subsets of each other. Namely they can handle simultaneous voice and data 4G (h+) and lte can only handle data. So it switches back to H so you can receive and make calls plus it uses less battery. If you are on either 4G techs and receive a phone call while downloading it will automatically switch to H from h+ or lte, this is why. The only way you will never see this is on an AT&T rom where it only has 4G and lte icons.
Sent from my LG-P930 using xda app-developers app
Click to expand...
Click to collapse
H+ isn't a subset of 4G is it? I know that the CM's have separate icons for 3G/H, H+, 4G, and LTE.
lordcheeto03 said:
H+ isn't a subset of 4G is it? I know that the CM's have separate icons for 3G/H, H+, 4G, and LTE.
Click to expand...
Click to collapse
That certainly is debatable but the US's largest carrier considers it to be, it behaves like 4g, H+ may not be as fast but it is 90%+ as fast in most markets small enough to not make a noticeable difference as far as people's perception and the technology behaves like LTE in a lot of respects, CM is international so it just conforms to International norms so that's why you get H+ AND 4G (LTE) designators.
Sent from my LG-P930 using xda app-developers app

[Q] Need help: Sprint GNex, no 4G... ever

I've had a Sprint Galaxy Nexus for about 4 months and have never seen a 4G indication. It's non-rooted, running stock Jellybean with FH05 radios.
I live in Houston and have also traveled to Chicago, Phoenix, San Francisco, and Los Angeles with this phone without ever seeing a 4G indication. I looked at the Sensorly 4G maps in Houston and drove along the 4G routes for a couple hours and never got any 4G signal.
I've played around with the *#*#4636#*#* menu but I haven't found anything that made any difference. Most of the posts say to select "LTE Only", but my menu does not have that option. It is currently set to "GSM/CDMA Auto (PRL)".
Can anyone think of something I'm missing? I'm eligible for an upgrade next month but I was planning to stick with the GNex a few more months. This 3g-only crap is killing me. I was hoping to keep the phone stock so I can pass the phone off to my mom/wife when I upgrade (without having to revert to stock), but it looks like I might have to root/rom it if I can't find a better answer.
crying for help :crying:
I would say after typing in the secret menu code, turn off the radio and turn it back on; see if that does anything.
Are you sure their isn't a LTE Only option? It should be at the bottom like the last option.'
If you're really that desperate for LTE, you might have to root your phone and flash a radio (which isn't too horribly hard to do) or change the PRL manually.
electro` said:
I would say after typing in the secret menu code, turn off the radio and turn it back on; see if that does anything.
Are you sure their isn't a LTE Only option? It should be at the bottom like the last option.'
If you're really that desperate for LTE, you might have to root your phone and flash a radio (which isn't too horribly hard to do) or change the PRL manually.
Click to expand...
Click to collapse
I've tried turning the radio off/on. I don't see an LTE Only option in the menu, but I'll check again to make sure.
I'm beginning to think that I may need to root/flash to get it going. I was hoping that having one of the nexus phones would get me away from flashing half-working ROM's every couple weeks, but it looks like I'm headed back that way :silly:.
Thanks for the suggestions
4G works just fine stock. If it isn't working for you now it most likely still won't work if you root and flash a different ROM. 4G maps aren't all that accurate and 4G signals drop in level fast when there are things between you and the tower. Either something is wrong with your phone or you just haven't been in an area which a strong enough 4G signal for your phone to pick it up. Make sure your phone is set to CDMA/LTE in the mobile network settings and not to CDMA only.
Sent from my Galaxy Nexus using xda app-developers app
How do you know your area has LTE? Do you know someone who has your carrier that gets LTE? If you're going by a coverage map, as said before, blah. You shouldn't need to tamper with your phone to get LTE. Try contacting your provider if your that concerned. The setting you have in the secret menu does a lot. Make sure that its set to something that allows LTE. Even my GSM HSPA+ nexus has an LTE Only option.
Sent from my Galaxy Nexus using xda app-developers app
Thing with sprint ive noticed is it uses whatever signal is the strongest. So while you may have 4g coverage, if your 3g is even a signal signal strength higher, it always uses that. You should be able to force lte, but from what I've read that causes calls and SMS/MMS to break until you revert back to auto.
Sent from my Galaxy Nexus using xda app-developers app
We had one of our users of sourcery write about this issue.
http://forum.xda-developers.com/showthread.php?p=74427
[ROM] JBSourcery V4.4 (updated 1/19)
Sent from my Galaxy Nexus using xda app-developers app
electro` said:
How do you know your area has LTE? Do you know someone who has your carrier that gets LTE? If you're going by a coverage map, as said before, blah. You shouldn't need to tamper with your phone to get LTE. Try contacting your provider if your that concerned. The setting you have in the secret menu does a lot. Make sure that its set to something that allows LTE. Even my GSM HSPA+ nexus has an LTE Only option.
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
I had the same suspicion about the coverage maps which is why it took so long for me to post for help. Recently I sat in the same car with an EVO LTE that was getting a 4g signal and I got no 4G. That's what made me take a second look at my settings to see why I wasn't getting it.
It could very easily be a matter of picking the strongest signal and I'm ok with that. The secondary problem that I have is that I've read so many descriptions of an "LTE Only" option in the networks menu and I don't have that either . In fact, none of the options in my menu specify "LTE", even in combination with CDMA.
My list of networks in the special menu:
WCDMA preferred
GSM only
WCDMA only
GSM auto (PRL)
CDMA auto (PRL) (3G)
EvDo only
GSM/CDMA auto (PRL) (default - 3G)
Unknown
Thanks for all of the responses, I'll keep digging for a solution.
mkuehl06 said:
We had one of our users of sourcery write about this issue.
http://forum.xda-developers.com/showthread.php?p=74427
[ROM] JBSourcery V4.4 (updated 1/19)
Sent from my Galaxy Nexus using xda app-developers app
Click to expand...
Click to collapse
That URL didn't work for me. Can you doublecheck it for me? Thanks
http://forum.xda-developers.com/showthread.php?p=37374427
[ROM] JBSourcery V4.4 (updated 1/19)
Sent from my Galaxy Nexus using xda app-developers app

[Q] Bell Canada i747m losing connection

hey gang i'm running the latest aokp task650 build on my S3 I747m. Everything works awesome, except i occasionally lose my data connection. I'll notice my connection status bars are gray, and typically a reboot will fix it. I'm sure going into airplane mode and back out from that would re-establish the connection too.
my APN is set correctly, i compared it to a friends nexus which is not rooted.
Right now i'm set as pda.bell.ca
I've flashed the latest bell modem file (that i'm aware of).
Anyone have any suggestions? i'm pretty new to all of this.. not sure what to do to troubleshoot.
itrunner said:
hey gang i'm running the latest aokp task650 build on my S3 I747m. Everything works awesome, except i occasionally lose my data connection. I'll notice my connection status bars are gray, and typically a reboot will fix it. I'm sure going into airplane mode and back out from that would re-establish the connection too.
my APN is set correctly, i compared it to a friends nexus which is not rooted.
Right now i'm set as pda.bell.ca
I've flashed the latest bell modem file (that i'm aware of).
Anyone have any suggestions? i'm pretty new to all of this.. not sure what to do to troubleshoot.
Click to expand...
Click to collapse
I've been having problems lately when I have poor 4G (LTE) signal. My phone would rather hang around on the LTE network with little to no signal before it switches over to 3G. It's been doing this for a while on the Rogers network for me. I can see when I check the battery stats just how much time is spent without signal which is a lot. At work I get full bars 3G when at my desk but very poor 4G. The only thing causing me to loose signal is the poor transition back and forth between the two networks. Changing modems has absolutely no affect on this matter and I've put the APN's and network modes through the ringer with no change either. I've tried it all and nothing improved it. When I walk outside I immediately hit full bars 4G. Just when I'm inside my work and at home, I get poor lingering 4G. I wish the thresholds for when it switches over were better. I usually just turn off LTE all together which sucks but oh well.
I don't think we are the only people with this either. I've read grumblings about others noticing the same thing.
If curious, I'm running the latest CM10.1 nightly with Ktoonsez kernel on the Rogers network in Ottawa.
Interesting, that could very well cooincide with what i'm seeing. I tend to bounce from 4G to H+ or 3G, i wonder if it's trying to hang onto 4G.
Is there a way to force it to stay on 3G? that might be a good test
I was getting the same issue.
I did a factory reset and reinstalled my ROM plus GAPPs and the issue resolved itself.
I am using the latest modern right now and not my bell one. I think it's from a south American carrier, but bit 100% sure of the top of my head. But it is in the current modern thread
Sent from my SGH-I747 using xda app-developers app

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