hy.i have a android note 2(feiteng h7189) dual sim phone.the problem is that i can't get acces to 3g network.all my setings are god but still nothing.on internet i only have 2g conection.for vodafone when i put network on 'wcdma only' i loose signal.on orange i can use wcdma but internet is 2g only.i use reset,service mode but nothing worked.if anyone can help pls...Thanks
casian85 said:
hy.i have a android note 2(feiteng h7189) dual sim phone.the problem is that i can't get acces to 3g network.all my setings are god but still nothing.on internet i only have 2g conection.for vodafone when i put network on 'wcdma only' i loose signal.on orange i can use wcdma but internet is 2g only.i use reset,service mode but nothing worked.if anyone can help pls...Thanks
Click to expand...
Click to collapse
First of all, if you haven't done it already, put the "gsm/wcdma" (or something similar, it has to have both of them anyway) setting on mobile networks. If you still can't get 3g, try searching for all available mobile networks. When the search ends, select a 3g network according to your carrier (e.g. vodafone 3g if your sim is vodafone).
i think the problem is with with band.in phone description it sais GSM 850/900/1800/1900MHz(2G) - WCDMA 850/2100MHz(3G),but in mtk engineer i can't select wcdma 900 and wcdma 2100 doesn't apear(band for 3g for vodafone) so i think this is motive i can't conect 3g.can i do somthing about that??
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..
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
J730F
current ROM: RR-O-v6.1.0
Hello community,
I have a network connection problem:
No matter with which ROM - except the official Samsung 8.1 - I can not select an LTE mode on SIM slot 1. Although LTE is always preferred in the connection properties, it always stays in H + or EDGE. Even about the * *#*#4636#*#* function and and there "LTE Only" or "LTE / UMTS auto (PRL)" does not work. The mode in SIM1 remains in HSDPA or EDGE. It only switches to the respective mode if I set GSM only or WCDMA only. Then he also changes the net type. LTE does not work here. Although LTE is present - because with the original Sasmung8.1 floor works the conversion - the only error: after a restart is always WCDMA preferred in it.
I can use different Custom ROm (everything formally properly formatted before) - no ROM works.
The 2nd problem: on SIM2 slot no incoming calls go. Call can be accepted, but no sound is heard - but I call with SIM2 everything is as usual without error.
What do you have for tips?
Hi all after wifi not working anymore I bought a refurbished motherboard for my 9505 LTE version. After replacing it wifi is working great but I can't seem to be able to connect to 3G. In info menu (*#*#4636#*#*) I read -voice network: GSM and -data network: EDGE, no matter what I set in preferred network type. I contacted phone company (3 Italy) and they say mi sim card is correctly registered on the network and I should get at least H+.
Tried all the latest modem/bootloader avaiable, now I am on I9505XXUHQC1 (GSM/NON-HLOS COMBINED).
Also tried manual network selection and I can only have signal if I set 2G as preferred network type in Settings-WiFi and Mobile-Mobile network.
Any ideas?
Thanks