My LG-E980 cell phone in the United States to be able to use China mobile phone card and on the Internet, but only a signal back to China, don't show operator, also can't make a phone call, but WCDMA can be normal use, mobile phone has been unlocked, didn't brush machine, this is what reason, thank you
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hello, i have an unlock htc isnpire from AT&T that is not allowing me to surf the web while in China. I can make calls, text but not able to surf the web when not on wifi.
What are you using china unicom or china mobile? You need to get the APN address right.
Connecting to 3g Network with China Unicom
I'm using China Unicom on their "3g network ONLY" card. The representative at China Unicom Corporate office gave me the APN: 3gnet which i set and saved. The phone searches and find both "China Unicom" & "China Mobile" but will not connect to China Unicom. I tried a China mobile card and it connect through EDGE network and call. For Unicome it only connect to EDGE if i use a dual EDGE and 3g CApable card but not the 3g network.
andyh916 said:
I'm using China Unicom on their "3g network ONLY" card. The representative at China Unicom Corporate office gave me the APN: 3gnet which i set and saved. The phone searches and find both "China Unicom" & "China Mobile" but will not connect to China Unicom. I tried a China mobile card and it connect through EDGE network and call. For Unicome it only connect to EDGE if i use a dual EDGE and 3g CApable card but not the 3g network.
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Im thinking you have a compatibility issue there the inspire is made for us networks it lacks the 2100 hspa band.
The inspire has 850 and 1900 and is a hardware limited. I had 3g when I used the nexus one last year with no issues.
Sent from my MB860 using Tapatalk
so does this mean my phone will not work for 3g network or is there a way i can make it work? Thanks
andyh916 said:
so does this mean my phone will not work for 3g network or is there a way i can make it work? Thanks
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You don't have the 2.1k radio so no saw like att phones don't have Tmobile 3g
Sent from my MB860 using Tapatalk
My oppo find 7 is 5 months old, was using a vodafone sim in india and was working fine ,when went out of town and entered different area the sim stopped working. Then when i came back to my service area then also the sim was not detected by the phone. Tried different other network sim like airtel, aircel, it did not work, only idea sim was recognised by the phone. I do not know how make my phone detect vodafone network, please advise.
Was wondering if anyone here with a 3 subscription in Ireland or the UK can use data on the 2nd sim when abroad (with the 3 sim in slot 1)? I'm currently a 3 customer and had an LG G4 dual sim phone before and it wasn't possible to use 3G or 4G on the 2nd sim because 3 can't run on 2G or Edge. So the 3 sim always had to have data access enabled.
slonn said:
Was wondering if anyone here with a 3 subscription in Ireland or the UK can use data on the 2nd sim when abroad (with the 3 sim in slot 1)? I'm currently a 3 customer and had an LG G4 dual sim phone before and it wasn't possible to use 3G or 4G on the 2nd sim because 3 can't run on 2G or Edge. So the 3 sim always had to have data access enabled.
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You can only have data access on one sim at a time. You can switch which sim has the data access but the one with data access will have 4g/3g/2g and the other sim will be 3g/2g. I use EE and Three in mine both are able to get a signal and use calls and texts. EE is the data sim on mine and Three can still make and receive calls and texts.
slonn said:
Was wondering if anyone here with a 3 subscription in Ireland or the UK can use data on the 2nd sim when abroad (with the 3 sim in slot 1)? I'm currently a 3 customer and had an LG G4 dual sim phone before and it wasn't possible to use 3G or 4G on the 2nd sim because 3 can't run on 2G or Edge. So the 3 sim always had to have data access enabled.
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I used to have this problem with my dual sim HTC M8 - because only one sim could be run in 3G/4G.
Be reassured, I now can run a 3 sim happily as second sim, the OP3 allows the second sim to run in 3G.
Many thanks for the replies! Just wanted to make sure I can use the local sim for data access as the 3 Like Home option is not very good for data speed
Hello,
I had my M8 replaced under warrenty and received a brand new M8. I am in Australia and use the Telstra network, and they provide network unlocked phones for plan customers, thus this phone isn't network locked.
When I first got it, it kept saying "Invalid Sim Card" on the lock screen for 2 days, and it went away by itself. The tech at the store said at that time they had significant network problems and we're resolved at the same time my phone was playing up. In those 2 days I also replaced the Sim Card and it made no difference.
Flash forward 4 weeks and I went overseas to Germany and the phone worked fine for a few days then again said Invalid Sim Card. No matter how many times I rebooted it I couldn't get it onto the network. Once I returned to Australia it worked fine.
I am now in South Africa and my Australian Telstra Sim Card was working fine but I needed a local number for data, so I purchased a Vodacom sim with data only and it worked straight away. My girlfriend also brought a Vodacom sim for her M10 (same Telstra plan as me) and hers is fine
My sim and phone ran on their networks fine for 12 hours and I wake up this morning and it's now saying "Invalid Sim Card" again. I've tried rebooting it several times with no luck.
Does anyone have any ideas?
I'm not convinced it's the Sim Card tray as it works fine on Australia, only when overseas. I don't know anything about the radio or baseband stuff but it's that related?? What can I check??
I used the IMEI24 website to confirm the phone was unlocked from the carrier, and entering *#*#4636#*#* doesn't show any info as it's not on the network.
Phone is currently unlocked, S-on, TWRP 3.0.2.0, rooted, Marshmallow.
I'm pretty angry as I have an ultra marathon in 2 days, and this phone was to connect my Garmin watch to the internet so my friends and family could track me, and most importantly my girlfriend could find me at the finish.
Any help would be greatly appreciated.
Thanks!
matticas said:
I don't know anything about the radio or baseband stuff but it's that related??
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I doubt it has anything to do with radio baseband. GSM bands are pretty standard worldwide, and just about any "quad band" (850, 900, 1800, 1900) GSM phone should get you at least voice and EDGE data services. And all M8 versions support those GSM bands. Therefore, any M8 should get you at least GSM service, regardless of the radio baseband installed.
I wonder if the issue is the SIM modules themselves, and the "overseas" issue is a red herring? My thought is, that maybe the overseas SIMs you purchased don't quite fit as well as your local (Australian) SIM. One thing you can try, is put some Scotch tape on the SIM (on the side without the gold contacts) and see if that "fattens" up the SIM enough to make better contact. Be careful not to get tape stuck in SIM slot/tray. I've seen this trick work for some folks with the Invalid SIM error.
Hey everyone, I have a OnePlus 5t device. In my country, I can't use a CDMA sim card because the device is GSM system in both sim slots. Instead, I took my phone to a phone technician who probably unlocked the sim to accept the CDMA sim. The network worked well, but I can't use the 4g internet. It will only work for calls and 3g , or just 4g alone without being able to make or receive calls. Is there anything I can do to make work for calls and 4g simultaneously? Help me please