Database Users

Data Connection only through UMTS

Hi,
I would like my Universal to open a Data Connection ONLY when there is an UMTS signal, and never if I am in roaming or not in UMTS. This because my "provider" (3 Italy) has only UMTS antennas and when its signal is not available it goes automatically in roaming but when I am in roaming I have to pay for traffic.
I tried to change the phone settings (Band->Network type) to WCDMA only, but in this way I cannot use roaming at all even for calling, but if I set Network type to Auto, I can use roaming but I will pay lots of money because I use Email Push that goes always on line.
Thanks!!

anyone can help me?!

Data Connection only through UMTS

Hi,
I would like my Universal to open a Data Connection ONLY when there is an UMTS signal, and never if I am in roaming or not in UMTS. This because my "provider" (3 Italy) has only UMTS antennas and when its signal is not available it goes automatically in roaming but when I am in roaming I have to pay for traffic.
I tried to change the phone settings (Band->Network type) to WCDMA only, but in this way I cannot use roaming at all even for calling, but if I set Network type to Auto, I can use roaming but I will pay lots of money because I use Email Push that goes always on line.
Thanks!!

[Q] How does Domestic Roaming work?

I'm running a stock, unrooted ZVC. I live in an area with great Sprint service, but sometimes (today) I'm in an area with no or poor Sprint coverage. How can I get my G2 to roam? I don't intend to torrent all of the interwebs, I just want a little data to use Hangouts and Facebook with. I get a weak 1xRTT signal here and can make a call, but no data service. I've checked the necessary boxes, and put the phone in Global mode, but it wont roam. Putting it on GSM mode only will find AT&T , T-Mobile, but will not connect.
Even in other areas where it does prompt me to roam and it shows the little triangle, I just can't get any data signal.
This is immensely frustrating, since I'm rarely in a non Sprint area, but I'd really like roaming to just work when I need it.
Any advice?

Sprint does not roam off domestic GSM carriers like AT&T and T-Mobile. Roaming arrangements are with CDMA carriers like Verizon.
If you've gone into System Settings, Roaming and set Roaming Mode to Automaic, checked off Domestic Roaming and Domestic Data Roaming, also go to Settings, Mobile Data, hit Menu button and check off Data Roaming there as well.
If you're in an area with no Sprint signal but a roaming partner is available, it will connect to that carrier and roam off them for either voice calling (1x) or data (1x, and or 3G). Might be a good idea to update your PRL (preferred roaming list).
If after all these you still can't roam, then get on the phone with customer service and have them see what's going on.
Most Sprint plans nowadays include voice roaming and data roaming, but with this important caveat as per their T&C :
Off-network Roaming: The primary use of your Device must be for domestic purposes within the Sprint-owned network. Domestic means use in the 50 United States and U.S. Territories (except Guam). Sprint reserves the right, without notice, to deny, terminate, modify, disconnect or suspend service if off-network usage in a month exceeds: (1) voice: 800 min. or a majority of minutes; or (2) data: 100 or 300 megabytes or (based on plan terms) a majority of kilobytes.
http://shop2.sprint.com/en/legal/legal_terms_privacy_popup.shtml

making data roaming sticky

I keep turning on data roaming (I'm on Sprint, which is unavailable where I am, and so I'm on Verizon), but it keeps turning off. Is there a way to make it sticky?

Network & Internet > Roaming > Roaming Guards. Turn it on / off from there.

(UK) Help with understanding Dual SIM

Hi all,
First time playing with dual SIM ad think Im missing something easy here.
I use GiffGaff (£5/m) and barely ever use data. Saw an offer from Voxi (Vodafone) for a 6GB data SIM. Grabbed one thinking I could use it as a second SIM just for data so I have a constant connection and a SIM I can move between devices where needed (MiFI, tablet etc, why I went with a second SIM rather than a different plan on my primary GiffGaff SIM)
Put the Voxi SIM in my Redmi, setup the APN and was greeted by the 4G symbol with the cross in the lower corner (no network connection but calls and texts work)
Now this is where Im getting confused. From what I can gather, only one SIM can be 4G while the other SIM will drop to 2G.
How do I go about setting this up correctly?
I do not need 4G speeds on the Voxi SIM as I only really need a constant connection, just enough to ping a few emails and Whataspp/Telegrams around.
Both GiffGaff and Voxi/Voda support 2G and would prefer the 4G to stay with GiffGaff for call quality.
So, I have:
GG in slot 1 (4G)
Voxi in slot 2.
APN set for Voxi.
Voxi set for Mobile Data
How do I now tell the Voxi SIM to connect over 2G and not 4G?
If I switch mobile data to the GiffGaff SIM, the 4G symbol from the Voxi symbol disappears so it must have switched to 2G but then GG is on data (with 4G sysmbol). When I switch back to Voxi GiffGaff goes to the no 4G but Voxi has the 4G with cross.
Is anyone here using dual SIMS like this in the UK?

Settings -> Network & Internet -> Mobile network -> Advanced -> Preferred network type
Did you try that?

Just tried every setting, in-between each one I toggled the mobile data switch and tried a ping and a Chrome page refresh
GiffGaff SIM = No 4G Logo and X (no network, calls and text work)
Voxi SIM = 4G Logo and X (no network, calls and text work)
TS-SCDMA/LTE/GSM/WCDMA/CDMA/EvDO
TD-SCDMA/WCDMA/LTE
TD-SCDMA/GSM/LTE
TD-SCDMA/LTE
LTE/WCDMA
LTE
Global
GSM/WCDMA/LTE
CDMA + LTE/EvDo
GiffGaff Sim = No 4G Logo no X (no network, calls and text work)
Voxi SIM = No 4G Logo no X (no network, calls and text work)
TD-SCDMA/GSM/WCDMA/EvDO
TD-SCDMA/GSM/WCDMA/LTE
TD-SCDMA/GSM/WCDMA
TD-SCDMA/WCDMA
TD-SCDMA/GSM
TD-SCDMA only
CDMA/EvDO/GSM/WCDMA
EvDO only
CDMA w/o ExDO
CDMA/EvDO auto
GSM/WCDMA auto
WCDMA only
GSM only
GSM/WCDMA preferred
Some things to note, I dont know if these are bugs in the ROM/AOSP or normal:
SIM Cards:
SIM Slot 1 shows "giffgaff - myphonenumber" and when clicked shows 'Operator - giffgaff' & 'Number - myphonenumber'
SIM Slot 2 shows "Voxi" - blank" (I edited the name to say Voxi manually) and when clicked shows 'Operator - unknown' & 'Number - unknown'
Mobile Network:
Enhanced 4G LTE Mode - This toggles the settings for both the GiffGaff and Voxi SIM regardless of within which SIM I set it
(Just found a reference to it here but no reply so dont know if this normal?)
This applies to the actual network in these settings as well. GiffGaff shows: Network - O2-UK, flicking across to the Voxi side it also shows O2-UK even if I untick 'Automatically select network' and search manually, choose Vodafone UK (Successfully registers on network) but doesn't change to 'vodafone uk'. The main sub heading under 'Settings - Mobile Network' shows O2-UK as well the status bar carrier info has always shown both giffgaff and vodafone uk no matter what.
These change if I completely disable SIM1 though, then it shows vodafone. I presume this is all because SIM1 is 'Priority' though. Doesnt help when troubleshooting
Also I realized I forgot to mention the ROM is ResRemix, not stock (oversight on my part, haven't used a stock ROM on a device for years, forgot they exist )
I have also tried the SIM in my old Nexus 4 and it worked with no issue so I am assuming it is definitely a device issue rather then a SIM/Carrier one.
Im going to try another ROM over the weekend, probably Lineage, If I get chance to try and get a baseline to see if this is ROM related though (although the ROM thread, people are saying dual SIM is working, mainly the JiO network(?))
Its also harder to troubleshoot when Ive never used Dual SIM before and have no idea how thongs should look and feel etc