Database Users

Turning of Roaming completely

Not sure if this is the correct forum but I want to be able to turn of roaming completely. I have a US G1 on the three UK network with the US RC33 installed and root. I have disabled data roaming. Here in the UK we're too small a country to want to roam! Coverage is usually good enough from a single network. However, I occasionally get the little 'R' symbol on the single strength icon and an annoying prompt saying I need to turn data roaming on because I lost connectivity. I have to go into the settings and manually select the "3" network again.
What I want is to either be connected to three UK or not connected to anything at all. Is there a config file I can edit to allow this? Would the UK RC8 firmware do this for me?
Thanks in advance for any help.

Doesn't a 3-UK SIM try to roam onto O2 though?
You could set the phone WCDMA only and NOT roam onto a GSM network.
Use AnyCut to shorcut Activity: Phone Info
From there under preferred Network Type; set to "WCDMA Only"

HELP!! Roaming signal won't go away
I have an unlocked G1, JF1.41 v 1.1 and i just updated to the RC33...but this also happened when i had RC30 , v 1.0...
I put in my canadian Fido sim card and everything works fine but i have that little "R" on top of my signal strength bar...
I think this means its data roaming? if this is the case...it should be okay (even though its going to bother me) because my service provider says my EDGE/Data is disabled (i do not have a data plan, NOR do i wish to incur any data charges.. i'm fine with my free WIFI ) .
However, if this means im roaming on another network, i dont want to be incuring any long distance charges on my phone EVEN when im using my own FIDO network..
I went to settings - about phone - status, and here are my specs (some of them):
Network: Fido
Network Type: EDGE
Service state: In service
Roaming: Roaming
Data Access: Disconnected
i'm pretty much just concerned about the ROAMING part of it... my other friends with G1's are with rogers, don't have that little R..
how do i get rid of that?? please and thanks!

Try manually changing the network in Settings>Wireless controls>Mobile networks>Operator selection
G1, like all GSM phones, will roam onto networks specified on the SIM if it can get a better signal. As long as the relevant operator has a roaming agreement in place, there's nothing to be concerned about, other than the R symbol in the status bar.
Mod: move this over to General discussion please.

I did change it and selected my Fido network (it's the only network available).

Thanks. I've set it to WCDMA only so I'll see how it goes.

Please help??? i still have that little R on top!

After I got home I found my phone had lost its connection. It didn't seem to be searching for the network. I had to go into settings, search for networks and then select three again. Is there any way to control if the phone does a search for networks automatically?

Looks like it reconnects to three on its own after a while. I still get the annoying popup about turning on data roaming though

footboydog said:
Looks like it reconnects to three on its own after a while. I still get the annoying popup about turning on data roaming though
Click to expand...
Click to collapse
As has been previously mentioned, Three will "roam" onto another network if it goes out of Three's own 3G network coverage because Three does not run its own 2G network.
However, it isn't O2 anymore, it is Orange as of late 2006/2007. I *believe* that you won't be charged any more if you use data whilst "roaming" on Orange, so whilst you are in the UK it is quite safe to allow data roaming, but I would be inclined to check this with Three.
Regards,
Dave

OnePlus Two - HSPA+ and 3G Data Connection Problem

Hi Everyone,
I'm usually just a reader on XDA, but I have found a problem that appears not to have been solved and wondered if anyone had any insight.
Problem Summary
When in an area (or network) with only HSPA and UMTS (strong HSPA/UMTS signal, but with no LTE or 2G available), the phone will drop from H+ to 3G erratically, always dropping the data connection. Traditional phone calls are not affected.
Detailed Description
I have a OnePlus Two and have 2 SIM cards. My first SIM Card is with Bell Canada (Virgin), and the second SIM Card is with WIND Mobile Canada.
Neither Bell nor WIND operate a 2G network, so the lowest the service can fall to is UMTS/3G.
Initially, I didn't notice the problem because Bell also operates an LTE network, and there is no problem with dropping the data connections when on LTE.
When I switched to the WIND SIM card (which only operates HSPA and UMTS), I noticed a problem where the phone would initially connect to H+, begin downloading whatever is needed (say, streaming music), but then part way through the download, the connection would switch to 3G, and the data would effectively stop. Within a minute, the service would jump back to H+ and download some more, but this cycle would continue (H+ --> 3G --> H+ --> 3G... ), with no way of knowing 1) how long the H+ connection would last before dropping to 3G (usually less than 30 seconds), and 2) after dropping to 3G, how long before going back to H+. This problem makes the phone almost useless when there is no LTE.
The most obvious troubleshooting I did was move to locations of better signal but I quickly ruled that out, as nothing seems to remove this problem. Other things I tried was to: move locations in the city, reboot phone, hard reset phone, flash most updated version of Oxygen, unlock bootloader, root, try the HSPA Keepalive app, swap SIM1 to SIM2, and many other things.
I originally thought this was a network issue, but I put this WIND SIM in another phone and there was no problem in any way that resembled this problem.
I also ruled out this being a network-specific problem, as I have taken a trip with the Bell SIM to an area where Bell does not have any LTE coverage (only HSPA and UMTS) and the same problem occurs on Bell as with the WIND SIM.
I have found people who had this problem on the OnePlus One tend to recommend using 2G to stabilize the connection, but this is not possible on Bell or WIND. That solution also would not provide adequate data speeds.
Remember this problem only affects data connectivity, as 3G traditional phone calls have no problems.
Question
Does anyone know if there is a way to adjust the conditions when the OnePlus Two will choose to switch from H+ to 3G?
Does anyone have any easier suggestions?
Thank you all in advance, because this rendering this phone almost useless when there is no LTE coverage.

I believe your problem is that phone it's dualsim standby, that means only one modem that alternates signal for both sims, I think normal would be alternating from faster network to slower network on sim without data.
Having to change to g3 between sims theres something stoped in the modem and data connection is also stopped.
You have no problem with voice calls because other sim is automatically turned off and unreachable.
There's nothing you can do if you're forced to only 3g on both sims
By 3g I mean 3g or h+ which to my knowledge are the same
Hope I was helpful and not wrong or more confusing
Sent from my ONE A2005 using Tapatalk

fburgos said:
I believe your problem is that phone it's dualsim standby, that means only one modem that alternates signal for both sims, I think normal would be alternating from faster network to slower network on sim without data.
Having to change to g3 between sims theres something stoped in the modem and data connection is also stopped.
You have no problem with voice calls because other sim is automatically turned off and unreachable.
There's nothing you can do if you're forced to only 3g on both sims
By 3g I mean 3g or h+ which to my knowledge are the same
Hope I was helpful and not wrong or more confusing
Sent from my ONE A2005 using Tapatalk
Click to expand...
Click to collapse
Thanks, I will try disabling the second SIM to see if there is a bug with the dual-sim...
What it currently does with the second SIM is it either shows "R" for roaming or just emergency only, but perhaps there is a software issue so I'll see if disabling the second SIM makes a difference.

biomedeng said:
Thanks, I will try disabling the second SIM to see if there is a bug with the dual-sim...
What it currently does with the second SIM is it either shows "R" for roaming or just emergency only, but perhaps there is a software issue so I'll see if disabling the second SIM makes a difference.
Click to expand...
Click to collapse
Though strange, this workaround fixes the issue. Thank you to fburgos for the suggestion!
So just in case anyone ever finds this issue creeps up on them, the solution is to DISABLE the SIM you are not using. It's not the most convenient workaround to swap SIMs, but the other SIM will be in Emergency Mode, so it really makes no functional difference.
On the technical side, it does appear that there is actually a bug in Android for a very uncommon network configuration. It will only appear in this exact configuration:
SIM1: Network has HSPA/3G only, no LTE or 2G to move to
SIM2: Network also only has HSPA/3G with no LTE or 2G
The non-data SIM does NOT connect to a roaming network (connects with "Emergency Only") - if it connects to a roaming 2G network, this problem does not happen.
The data SIM connects to HSPA/3G
Both SIMs are active
I'm not sure if this will happen anywhere else in the world other than having a WIND Mobile Canada SIM and Bell or TELUS Canada SIM
If anyone has insight on how to report this to Google, or someone else who can confirm my theory, that would be great!

Try this:
1. You need to make sure you have the correct LTE APN selected in mobile networks and LTE as preferred type.
2. Go to dialer and type in this: *#*#4636#*#*
3. Phone Information
4. Set Preferred Network Type to: LTE/GSM (PRL) - you an play with which one you wanna use but the one I said works for sure. on other roms I have" TD-SCDMA, GSM/WCDMA and LTE"
5. Now click TURN OFF RADIO and wait WAIT few secs. will that button turns to Turn Radio ON
6. Now TURN ON RADIO and wait
7. when u see the triangle for the signal is back, at least black , go down and lick SMSC REFRESH then UPDATE.
8. now just go back to APN settings and go into your LTE APN
9. Change Bearer to LTE

biomedeng said:
Hi Everyone,
I'm usually just a reader on XDA, but I have found a problem that appears not to have been solved and wondered if anyone had any insight.
Problem Summary
When in an area (or network) with only HSPA and UMTS (strong HSPA/UMTS signal, but with no LTE or 2G available), the phone will drop from H+ to 3G erratically, always dropping the data connection. Traditional phone calls are not affected.
Detailed Description
I have a OnePlus Two and have 2 SIM cards. My first SIM Card is with Bell Canada (Virgin), and the second SIM Card is with WIND Mobile Canada.
Neither Bell nor WIND operate a 2G network, so the lowest the service can fall to is UMTS/3G.
Initially, I didn't notice the problem because Bell also operates an LTE network, and there is no problem with dropping the data connections when on LTE.
When I switched to the WIND SIM card (which only operates HSPA and UMTS), I noticed a problem where the phone would initially connect to H+, begin downloading whatever is needed (say, streaming music), but then part way through the download, the connection would switch to 3G, and the data would effectively stop. Within a minute, the service would jump back to H+ and download some more, but this cycle would continue (H+ --> 3G --> H+ --> 3G... ), with no way of knowing 1) how long the H+ connection would last before dropping to 3G (usually less than 30 seconds), and 2) after dropping to 3G, how long before going back to H+. This problem makes the phone almost useless when there is no LTE.
The most obvious troubleshooting I did was move to locations of better signal but I quickly ruled that out, as nothing seems to remove this problem. Other things I tried was to: move locations in the city, reboot phone, hard reset phone, flash most updated version of Oxygen, unlock bootloader, root, try the HSPA Keepalive app, swap SIM1 to SIM2, and many other things.
I originally thought this was a network issue, but I put this WIND SIM in another phone and there was no problem in any way that resembled this problem.
I also ruled out this being a network-specific problem, as I have taken a trip with the Bell SIM to an area where Bell does not have any LTE coverage (only HSPA and UMTS) and the same problem occurs on Bell as with the WIND SIM.
I have found people who had this problem on the OnePlus One tend to recommend using 2G to stabilize the connection, but this is not possible on Bell or WIND. That solution also would not provide adequate data speeds.
Remember this problem only affects data connectivity, as 3G traditional phone calls have no problems.
Question
Does anyone know if there is a way to adjust the conditions when the OnePlus Two will choose to switch from H+ to 3G?
Does anyone have any easier suggestions?
Thank you all in advance, because this rendering this phone almost useless when there is no LTE coverage.
Click to expand...
Click to collapse
I have the same problem. Do you already have solved it?
I use only one SIM card so it is not a problem two cards.

really you do not have this problem? if no one knows the solution?

compared with my htc butterfly 2 and another low-end android, one plus 2 running latest Oxygen OS has serious connectivity issues. I compared the signals strength using same sim card in same location (including being connected to the same tower) and One Plus 2 keeps dropping the connection and has really poor signal strength. I have tried the *#*#4636#*#* and tried different network modes, but none of them are helping. Its a real disappointment that the basic feature of this phone is screwed up.
I have tried with CM13 as well. Any ideas if this is a modem version issue?

odeccacccp said:
Try this:
1. You need to make sure you have the correct LTE APN selected in mobile networks and LTE as preferred type.
2. Go to dialer and type in this: *#*#4636#*#*
3. Phone Information
4. Set Preferred Network Type to: LTE/GSM (PRL) - you an play with which one you wanna use but the one I said works for sure. on other roms I have" TD-SCDMA, GSM/WCDMA and LTE"
5. Now click TURN OFF RADIO and wait WAIT few secs. will that button turns to Turn Radio ON
6. Now TURN ON RADIO and wait
7. when u see the triangle for the signal is back, at least black , go down and lick SMSC REFRESH then UPDATE.
8. now just go back to APN settings and go into your LTE APN
9. Change Bearer to LTE
Click to expand...
Click to collapse
Did It.. But it seems like it didn't solve my problem..

935p unlocked and flashed to 935u but can't pick up cdma bands

So maybe this was a bad idea but I'm on boom mobile (verizon mvno) and thought I could save some money and picked up a sprint s7 edge on sale, I just had it unlocked and they flashed it to the 935u unlocked version. The problem is I can't connect to the verizon network, after playing around with it a bit I got it to connect to the verizon lte network but still no voice. In my meager attempts to troubleshoot I noticed I have the options under network mode of
LTE/3g/2g -->> this picks up all networks in my area (Verizon, Sprint, ATT, Tmobile, US Cellular)
3g/2g --> only shows ATT and Tmobile
3g --> only shows ATT and Tmobile
2g --> only Tmobile
So I'm thinking my phone isn't setup right to connect to cdma networks which I thought the 935u rom was supposed to do. Anyone have any tips on how i can further troubleshoot this?
Thanks in advance.
edit: Well I installed a program called 4g LTE switch and set it to cdma only and I was able to make a phone call (3g data also worked) like that but changing it to LTE/cdma wouldn't let me make a call but LTE data worked, if i leave it set to LTE/cdma and reboot it switches back to LTE only.
edit2: Maybe it's trying to connect to volte which isn't offered for Verizon MVNO's yet but i don't see any settings available to disable that.
edit3: When set to LTE/CDMA I could sometimes make outgoing calls, sometimes I would get the double dial prompt, it was very slow to switch between LTE and CDMA so I would miss incoming phone calls.
I threw in the towel and just flashed the latest Verizon rom and it's working properly.

No signal 3G Galaxy s4 gt-i9505

Hello.
Sorry for my English.
I have a problem with galaxy s4 consisting in that:
2G network works without problem, 4G LTE network will work fine, it will switch to 3G network, it displays no network or normal range but can not make outgoing and incoming calls. When trying to manually set the network is the same. 2G and 4G work without problems, but when the 3G is set to reach range, but when you try to ring immediately disconnect. Sometimes the message says that you can not connect to the network. I tried with the same card on the second S4 and it works fine. The rest of the sim card was replaced with a new one. APN configuration has been resumed. It has also been changed to the same system with the XEO-I9505XXUHPK2 modem. I also tried another I9505XXUHOH2 modem but then no network worked. I also called the operator and accepted the application but it was a problem with the phone. I put another card and once it worked but it was very weak to me (interrupted). The owner of the phone was also at the service they exchanged ... charging socket.
Please help because the phone must be ready for tomorrow evening.
Regards

Hi,
A bit late, but open up the dialer and type: *#06#
Does it show an IMEI number? If so, does it start with 0049?

not receiving incoming calls...

just got the phone yesterday and updated it to the P beta. everything works amazingly well for a beta in my opinion, BUT i cant receive calls. outgoing calls, texts, web and apps are just fine.
spent almost 2 hours at tmobile flipping all the settings around and no luck. any ideas would be appreciated.

Same issue here bro...Incoming don't ring but I get voicemail notifications.... Really annoying, even if it is a DP.

Turns out the beta doesn't play well with the essential LTE. Switch to 3g and calls will come through. Hopefully it doesn't take long to find a work around for it

I believe the people having this issue have volte enabled...try and disable volte (it's broken anyway and more than likely why calls won't ring through) and see if that works

Got same issue... My experience was that I could solve the problem with reboot.
Issue came after playing on settings for mobile network.
Is meaning, when you do this you have to reboot afterwards otherwise you can't receive calls
Try it.

vergilbt said:
Got same issue... My experience was that I could solve the problem with reboot.
Issue came after playing on settings for mobile network.
Is meaning, when you do this you have to reboot afterwards otherwise you can't receive calls
Try it.
Click to expand...
Click to collapse
Tried rebooting multiple times while changing settings around. The only way I can get the calls to come through is by going without LTE completely.

knotjeff said:
Tried rebooting multiple times while changing settings around. The only way I can get the calls to come through is by going without LTE completely.
Click to expand...
Click to collapse
Settings/network settings/mobile network/advanced/enhanced LTE?

I had the same issue and to fix mine I just enabled Wifi Calling.
When on wifi I didn't get a call, just missed call notification. After enabling wifi calling, it comes through without issue.
I tested calling off wifi and on wifi and all calls come through good now.
This could be similar, so you guys might want to look at that also.
Good luck!

Heard from a few that this was solved by going into phone app settings -> calls -> calling accounts, then turning on "receive incoming calls". Seems it's disabled to save battery? Can't confirm as I just flashed to try it out and then went back to 8.1 because I like themes too much. Lol.

I'm on Sprint and was never able to make or receive calls regardless of Network settings in the easily accessible options menu.
The following fixed my issue. You can access this menu without downloading an app but I forget how so it's easier to just download the free app https://play.google.com/store/apps/details?id=com.xsquarestudio.forcelte
I had my network mode set to LTE/CDMA when first using this app, and somewhere in the middle I changed it to CDMA but I'm not sure how much that impacted the actual fix.
These were my steps. I'm not responsible for any damage this may cause to your device as I'm not sure if messing with these settings is foolproof or not.
First, opened previously linked app "Force LTE" then under "Set Preferred Network Type" I changed to CDMA only. Enabled/disabled airplane mode. This seemed to do nothing as LTE was still showing in statusbar.
I then chose CDMA auto (PRL), airplane mode on/off, didn't seem to do much either. LTE still showed in statusbar and couldn't make calls. Also "Voice Network Type" showed "Emergency Calls only" inside the app.
I then chose the 3 dot menu and chose "select radio band". I changed that to United States, without resolving problem. Then selected "Cellular 800" and this may have solved the problem, but I continued on and selected PCS, fiddled with some settings in Phones settings menu. Was finally able to receive calls and my signal indicator showed 3G. In app Voice Network Type was listed as 1xRtt. I decided to select radio band once more and chose Class 10.
Calls were still functioning fine. So I went into Main settings menu and changed mobile network from CDMA to LTE/CDMA. LTE kicked in and calls still work!
Again, these settings may only work for Sprint hence the PCS Network option, and I believe Sprint may utilize the 800mhz frequency. The app might show you different options depending on your carrier. I don't know.
Anyway, fully functioning! Woohoo!!

Forgetfull said:
Settings/network settings/mobile network/advanced/enhanced LTE?
Click to expand...
Click to collapse
I don't have anything in my settings that says "enhanced LTE" .
Tried using the 4g/LTE and the LTE only options. Neither would let calls through.

I have this problem using the Essential PH-1 with Android 9 Pie in South Korea on the KT network. It should be fully compatible, according to radio specifications, however it only works when I change the following setting:
Settings | Network & Internet | Mobile network | Advanced | Preferred network type | 3G
This is not ideal, since it makes the Internet slow, but at least I can make/receive voice calls. I submitted a support ticket to Essential requesting their official help (I'm well within warranty).

I had the same issue when I use my Att prepaid plan. The problem is caused by wrong network type, you can send text and browse internet, because they use the different channel. My PH-1 wrongly recognized the sim as CDMA/LTE mode, just switch it to 4G/LTE, it will be work. Go to Settings, then search "wi-fi calling", point "advanced" then you can see an opinion "Preferred network type" if you are ATT or T-mobile user, and your preferred network type is "LTE/CDMA“ then your phone cannot make call. Switch it to "4G/LTE", you phone will be work. BTW, Verzion uses CDMA, so if you are Verzion user, CDMA/LTE will work for you phone.