Hi all,
While back in the USA, I was lucky enough to get a new Nexus 7 (2103) 32GB LTE model which shipped with a T-Mobile micro SIM card good for prepaid data access plans. However, I live in the Netherlands and when I tried to use my Nexus with a micro SIM from my provider Vodafone, it was not able to properly list the mobile network operators.
I opened a technical support incident with Google Play services who lead me through several diagnostic steps which included verifying that the tablet is not SIM or carrier locked, it properly recognizes the available networks with other carriers SIM cards (worked with T-Mobile USA, Telecom DE, MTN NG, Rogers CA) it also can list the mobile networks with no SIM in the device. But when a Vodafone SIM is added, it simply doesn't recognize any network operators. It's not a matter of APN settings, as we have verified these are correct, but the problem occurs at a very early level in preventing the mobile networks from being listed.
I believe this to be somehow related to the SIM card/middleware used to communicate with the SIM to the hardware. I see this behavior with the LTE Factory Image JLS36C as well as the Cyanogen Mod 10.2 unofficial deb builds.
Are there any other LTE users that are having a similar problem? Without mobile network access, my LTE model is effectively a WiFi only model and I'd really like to get this fixed.
buckofive said:
While back in the USA, I was lucky enough to get a new Nexus 7 (2103) 32GB LTE model which shipped with a T-Mobile micro SIM card good for prepaid data access plans. However, I live in the Netherlands and when I tried to use my Nexus with a micro SIM from my provider Vodafone, it was not able to properly list the mobile network operators.
Click to expand...
Click to collapse
As has been posted quite a few times already, the US and Europe use different channels for LTE. So a US N7 will not work with all European providers and vice versa. Most probably Vodafone uses one of the LTE channels not supported on the US N7. So you have two choices:
1. Find a different provider that uses the channels supported by the US N7.
2. Replace your current US N7 with an European N7 model.
Guhrasoh said:
As has been posted quite a few times already, the US and Europe use different channels for LTE. So a US N7 will not work with all European providers and vice versa. Most probably Vodafone uses one of the LTE channels not supported on the US N7. So you have two choices:
1. Find a different provider that uses the channels supported by the US N7.
2. Replace your current US N7 with an European N7 model.
Click to expand...
Click to collapse
While the US and Europe do have some variance in LTE bands - we confirmed that the bands used by Vodafone NL are as listed below:
Nexus 7 (2013) Tech Specs (LTE)
Network
North America and Japan:
GSM: 850/900/1800/1900 MHz
HSPA+: 850/900/1900/2100/AWS (1700/2100) MHz (Bands: 1/2/4/5/8)
LTE: 700/850/1700/1800/1900/2100 MHZ (Bands: 1/2/3/4/5/13/17)
Rest of World:
GSM: 850/900/1800/1900 MHz
HSPA+: 850/900/1900/2100/AWS (1700/2100) MHz (Bands: 1/2/4/5/8)
LTE: 800/850/1700/1800/1900/2100/2600 MHz (Bands: 1/2/3/4/5/7/20)
Wireless
Dual-band Wi-Fi (2.4G/5G) 802.11 a/b/g/n
We confirmed that Vodafone NL use 4G data enabled in a combination of the 800MHz and 1800MHz bands which are listed as supported.
The fact that my N7 can connect to other mobile networks in Europe with other carrier SIM cards also disproves the need to get a "European" model to connect to a network. There clearly is a problem with the Vodafone SIM and the NA Nexus, but simply blaming it on the channel or bands is not correct. Addittionally, even if the LTE connection is not possible 3G connection via HSPA+ or 2G GSM connection should be possible. The same Vodafone SIM worked with my N7 2013 3G model, which was also from NA, so it is clearly not an issue with the bands & channels.
Have you tried manually changing your prefered network type in testing menu *#*#4636#*#*
Since there is no dialler on N7 deb, I use https://play.google.com/store/apps/details?id=org.freespirit.hms&hl=en
From tablet info submenu, u can also use settings button (3 dots) to manually select radio band
Raverbunny said:
Have you tried manually changing your prefered network type in testing menu *#*#4636#*#*
Since there is no dialler on N7 deb, I use https://play.google.com/store/apps/details?id=org.freespirit.hms&hl=en
From tablet info submenu, u can also use settings button (3 dots) to manually select radio band
Click to expand...
Click to collapse
Thanks for the tips regarding the Hidden Menus application. I've installed it and set the GSM/UMTS band to EURO Band (GSM-900/DCS-1800/WCDMA-IMT-2000) but still not had any luck detecting mobile networks with the Vodafone SIM inserted. After removing the SIM and restarting, performing the same operation to search for available networks shows the four network operators in this region. I'm currently in Germany and in this area it shows
E-Plus
o2- de
Telekom.de
Vodafone.de
If I replace the Vodafone NL sim and try the same operation again, Settings | Mobile Networks | Network Operators - it searches for only a second or two (compared to the 15 or so it takes with no SIM installed) then does not show any networks.
All signs point to the issue being with the SIM chip OS or incompatability of the SIM chip profiles with the Nexus 7 (2013) LTE model. I didn't have any issues with this and my Nexus 7 (2012) 3G version.
In another strange hardware related issue, I have noticed that the Nexus 7 (2013) uses a different NFC stack and does not recognize all of the NFC tags that the 2012 model recognizes. A co-worker with the 2013 Wifi only version ordered some NFC tiles but they don't work with either his or my 2013 model, but work with the 2012 model. Very curious if this is somehow related to the issue that I see with the SIM card problem I am having.
Any other ideas?
Did you find a solution?
buckofive said:
Thanks for the tips regarding the Hidden Menus application. I've installed it and set the GSM/UMTS band to EURO Band (GSM-900/DCS-1800/WCDMA-IMT-2000) but still not had any luck detecting mobile networks with the Vodafone SIM inserted. After removing the SIM and restarting, performing the same operation to search for available networks shows the four network operators in this region. I'm currently in Germany and in this area it shows
E-Plus
o2- de
Telekom.de
Vodafone.de
If I replace the Vodafone NL sim and try the same operation again, Settings | Mobile Networks | Network Operators - it searches for only a second or two (compared to the 15 or so it takes with no SIM installed) then does not show any networks.
All signs point to the issue being with the SIM chip OS or incompatability of the SIM chip profiles with the Nexus 7 (2013) LTE model. I didn't have any issues with this and my Nexus 7 (2012) 3G version.
In another strange hardware related issue, I have noticed that the Nexus 7 (2013) uses a different NFC stack and does not recognize all of the NFC tags that the 2012 model recognizes. A co-worker with the 2013 Wifi only version ordered some NFC tiles but they don't work with either his or my 2013 model, but work with the 2012 model. Very curious if this is somehow related to the issue that I see with the SIM card problem I am having.
Any other ideas?
Click to expand...
Click to collapse
Hello All,
Apologies for the opportunistic first post but I only "discovered" this forum today.
I am facing the same issue as buckofive and was wondering whether anyone has ever found a solution?
Thank you.
ricmartins said:
Hello All,
Apologies for the opportunistic first post but I only "discovered" this forum today.
I am facing the same issue as buckofive and was wondering whether anyone has ever found a solution?
Thank you.
Click to expand...
Click to collapse
Unfortunately, I have not been successful in getting this resolved. I've visited Vodafone several times, but none of their in store personnel have been able to give me any other answer than "it doesn't work" and we also see this with North American Nexus 5 handsets. I've done some addditional testing with other MNO SIM cards with American, Dutch, and German T-mobile SIMs and they work flawlessly and with 4G LTE speed, so it isn't a question of network or band.
The issue is definitely related to the SIM card OS and version. However, Vodafone have been unable to tell me what the SIM vendor is and what the chip operating system is.
Vodafone promised a solution
I have AGAIN asked Vodafone for help and they promised me a solution. I have my doubts ad will post an update next week once i hear back from them.
buckofive said:
Unfortunately, I have not been successful in getting this resolved. I've visited Vodafone several times, but none of their in store personnel have been able to give me any other answer than "it doesn't work" and we also see this with North American Nexus 5 handsets. I've done some addditional testing with other MNO SIM cards with American, Dutch, and German T-mobile SIMs and they work flawlessly and with 4G LTE speed, so it isn't a question of network or band.
The issue is definitely related to the SIM card OS and version. However, Vodafone have been unable to tell me what the SIM vendor is and what the chip operating system is.
Click to expand...
Click to collapse
ricmartins said:
I have AGAIN asked Vodafone for help and they promised me a solution. I have my doubts ad will post an update next week once i hear back from them.
Click to expand...
Click to collapse
Did you hear anything back from Vodafone? They have simply told me they don't support the device and explain that it is due to a North American device, which is simply not true. I've tested with T-Mobile data card from The Netherlands and also from Telekom in Germany and the Nexus 7 2013 gets 40+ Mbps download speeds on those networks. So the issue is clearly related to the Vodafone SIM cards, but no one has been able to give me any insight as to what card OS they are using, so it is very hard to troublehsoot the problem any further.
Two big thumbs down for Vodafone service & support!
Any news on this problem yet? I have exactly the same problem, I can use a KPN sim but my Vodafone sim simply won't work in my US Nexus 7. This sucks, I upgraded to a multisim Red Super subscription to be able to use my new tablet anywhere without having to tether.
I made sure to check which bands the US Nexus supports and figured in a worst case scenario I would simply use 3G instead of 4G. But it won't connect to 3G either
Sorontar said:
Any news on this problem yet? I have exactly the same problem, I can use a KPN sim but my Vodafone sim simply won't work in my US Nexus 7. This sucks, I upgraded to a multisim Red Super subscription to be able to use my new tablet anywhere without having to tether.
I made sure to check which bands the US Nexus supports and figured in a worst case scenario I would simply use 3G instead of 4G. But it won't connect to 3G either
Click to expand...
Click to collapse
I have the issue as well. openend a ticket with Vodafone and directed them to this thread. unfortunately they were thus far also not able to solve it yet. hopefully something will happen, as otherwise I will need to drop Vodafone....
I also tested it with a KPN sim which worked perfectly. two Vodafone sims and a duo sim all had the same issue. Real strange thing is that with the KPN sim I was able to see the Vodafone network. But on the Vodafone sim I wasn't able to see any network. They assured my it was not a 4G only sim card, thus it was also strange the nexus did not pick a 2G or 3G network. In the settings though I could not change the 4G perferred setting to either 2G or 3G. it immediately reverted back to the 4G setting....
All in all, no realy help yet, only confirmation of what is being seen above.
pwvandeursen said:
I have the issue as well. openend a ticket with Vodafone and directed them to this thread. unfortunately they were thus far also not able to solve it yet. hopefully something will happen, as otherwise I will need to drop Vodafone....
I also tested it with a KPN sim which worked perfectly. two Vodafone sims and a duo sim all had the same issue. Real strange thing is that with the KPN sim I was able to see the Vodafone network. But on the Vodafone sim I wasn't able to see any network. They assured my it was not a 4G only sim card, thus it was also strange the nexus did not pick a 2G or 3G network. In the settings though I could not change the 4G perferred setting to either 2G or 3G. it immediately reverted back to the 4G setting....
All in all, no realy help yet, only confirmation of what is being seen above.
Click to expand...
Click to collapse
I wouldn't hold your breath waiting on the response from Vodafone. I've had a ticket open for months with them, and it supposedly has been escalated. I've inquired in person with the so called "specialists" and they simply say it doesn't work with their SIMs. Yet nobody can tell me anything about the SIM, like manufacturer card OS, etc. It is really frustrating to hear this as I work with smart card and SIM middleware developers and if we had a bit to work with we might be able to fix the problem on our own.
I was at the end of my rope and extreme frustrated with them and wanted to cancel my contract, but they said that despite me paying for months of service that I haven't been able to use, that I would have to pay the remaining duration of my contract before I could switch to T-Mobile, which I think is total crap.
dual sim same problem with vodafone NL
I have the same issue. I use a dual sim from Vodafone in my Nexus 5 and Nexus 7. The Nexus 5 does not show these problems, but the 7 does. When I buy prepay mobile data abroad (Europe, Asia, US, Australia), the Nexus 7 2013 C works great with e.g. Orange, t-Mobile, Vodafone etc. But as my cellular subscription is a corporate one, at home I have to stick to wifi, for almost 2 years now! (I bought the 7 in Australia about 2 years ago). And yes exchanging sims between the devices does not make a difference. The combination vodafone NL sim + nexus 7 does not provide mobile data.
Related
HI all, thanks here for all your help. I finnaly have my unlock code from T-mobile UK, for 30 pounds, but i think it is workth it.
Now using the PRO as a phone, it is kinds weird to get used to. I live inthe US and i put my T-MOble US sim card in, when i check the settings, i found out for some strange reason that the GSM band it was using was EGSM+DCS1800, i don't know what this band is, but i noticed that i don;t get enought bars, always loosing signal, and i have put the new 1.08 radio rom on it. My SK65 gets better signal.
The only other option i see there for GSM band is PCS1900, so i have manually set it to this. My question is, which band should i be using? whats the diffrence? and when setting up WAP for MMS, do i use WAP1.2 or WAP2.0.
Also does the UTMS2100 mean it will work on Sprints 2100 network?
Thanks.
Search is your friend
All of the Universal forums are full of information about why the MDA Pro is not as useful in the US because it is just Tri-Band. T-Mo USA uses GSM/GPRS 1900 for voice and data. You need to stick to this band alone. Try using WAP 1.2 for WAP. There's no EDGE available on the Uni.
No, Sprint won't work It's different technology using a different standard. You can only use UMTS in Europe, the Middle and Far East. That's why this device is targeted for these markets and was never brought to North America. And it never will be.
Let's hope the successor to the Universal can do it by incorporating the latest technologies prevalent in North America.
Hi there,
I'm totally confused as to what I need to do to get my Touch Pro 2 (currently activated on Boost CDMA) to work abroad, specifically Canada.
It is flashed with Energy ROM, Reference version.
Do I need to do a Radio flash? Do I need to tweak some settings? Both? Neither?
I'm going to be in Canada for 3 weeks and plan to use either Rogers or Fido's GSM Pay as You Go (already have the SIM cards), or Telus's CDMA Pay as You Go.
I've read the FAQs and generally understand that this is possible -- just not clear the route.
Thanks,
Simmy
The biggest problem with Canada is our carriers don't want people coming in and using their networks without paying for it, and that usually means your first born here.
The hardware problem is, the TP2 will not work on the frequencies in Canada that Telus has used for the HSPA / 4G network. And using the current CDMA network is not possible either because Telus and Bell will not allow you to put branded phones from other companies on the old network and CDMA systems don't use SIM cards. So if your planning on bringing the TP2 up here I think you may be out of luck.
I took the TP2 to Ireland and was able to use the frequencies there on the O2 network, but to do that I had to unlock the phone and as i have the "world edition" with the SIM card slot once unlocked it worked over there no issue, and returned working over here with no SIM card in it. But again this is a frequency issue and telus tells us it won't work.
Now if when you get here, and you plug a sim card in and it does work, please share, because it means we can manually add frequencies and hook to both the old and new network. And some of us with the original unlimited data contracts (no 10 gig cap) would be really happy to know this.
As for Rogers, i can't tell you. I don't know if they have ever had the TP2 and have no clue what frequency they are using for their phones, though i'm sure it's similar.
Flashing the radio does nothing to add radios or affect your ability to connect to the network while abroad. Its usually just done to improve reception and/or battery life.
You will need your phone SIM unlocked. Then, as the post above suggests, either putting in the SIM works, or it doesn't.
Thanks to both of you for your reply.
So the TP2 won't work on any Canadian CDMA networks, but since it also has GSM, if I stick a Rogers or Fido SIM card in it, it *may* work. In fact, I believe it *should* work. I'll let you guys know how it goes.
And thanks for answering my question re: radio ROMs, Redpoint -- that's what I thought, but was still confused about.
So, with respect to unlocking, is the Olipro page that charges 11 pounds / 14 euros / $20 my best/cheapest option? (unfortunately, i can't link to it here because I'm a new member)
Thank muchly,
Simmy
The device should have no trouble connecting to a normal GSM network in Canada. The Canadian GSM networks use the GSM-1900 and GSM-850 bands. The CDMA Rhodiums use a quad band frequency that spans all of 850/900/1800/1900 MHz channels. You should have no problems in Canada. Enjoy your trip.
You do not need to flash a new radio to have it work in Canada.
hi, i have a brand new rhodium t-mobile version, flashed with the nrg rom feb 1st.
when i use the data connection the phone connects to the edge network, while the same sim card connects to 3g/H on a motorola milestone. i read on google that 2 or 3 users (the phone isn't sell in argentina) that have the same problem...
the 3g network in argentina works in the 1900/850 band, so i have it configured that way but it doesn't work.
does anyone knows how to solve this, please?
thanks in advance
lean04 said:
hi, i have a brand new rhodium t-mobile version, flashed with the nrg rom feb 1st.
when i use the data connection the phone connects to the edge network, while the same sim card connects to 3g/H on a motorola milestone. i read on google that 2 or 3 users (the phone isn't sell in argentina) that have the same problem...
the 3g network in argentina works in the 1900/850 band, so i have it configured that way but it doesn't work.
does anyone knows how to solve this, please?
thanks in advance
Click to expand...
Click to collapse
3G with the T-Mobile version (RHOD210) works on the 1700/2100 MHz AWS spectrum. You will not be able to use 3G on your network with this device. There is no fix or work around. This is a hardware limitation.
EDIT: You should have gotten the Tilt2 (RHOD300). This is the AT&T branded version that has radio hardware which supports your network.
cajunflavoredbob said:
3G with the T-Mobile version (RHOD210) works on the 1700/2100 MHz AWS spectrum. You will not be able to use 3G on your network with this device. There is no fix or work around. This is a hardware limitation.
EDIT: You should have gotten the Tilt2 (RHOD300). This is the AT&T branded version that has radio hardware which supports your network.
Click to expand...
Click to collapse
ok, last question, why in the band section it has the option to use 1900/850 Mhz?
http://support.t-mobile.com/doc/tm5...5611&navtypeid=6&pagetypeid=7&prevPageIndex=5
that´s what i thought that it would work..
lean04 said:
hi, i have a brand new rhodium t-mobile version, flashed with the nrg rom feb 1st.
when i use the data connection the phone connects to the edge network, while the same sim card connects to 3g/H on a motorola milestone. i read on google that 2 or 3 users (the phone isn't sell in argentina) that have the same problem...
the 3g network in argentina works in the 1900/850 band, so i have it configured that way but it doesn't work.
does anyone knows how to solve this, please?
thanks in advance
Click to expand...
Click to collapse
If it truly does support switching bands, as the link you posted would indicate:
http://support.t-mobile.com/doc/tm5...5611&navtypeid=6&pagetypeid=7&prevPageIndex=5
Then, I would recommend flashing the Stock ROM. Then see if you can get it to work with the stock T-Mobile ROM. If you can, then it probably is possible to do it using an Energy ROM as well. But, I don't think it is possible.
I am not that familiar with T-Mobile phones, since I use an AT&T Tilt 2. It seems unlikely that this would work, since in the United States even the T-Mobile HD2 doesn't get 3G when SIM unlocked and switched to use the AT&T network with an AT&T SIM.
lean04 said:
ok, last question, why in the band section it has the option to use 1900/850 Mhz?
http://support.t-mobile.com/doc/tm5...5611&navtypeid=6&pagetypeid=7&prevPageIndex=5
that´s what i thought that it would work..
Click to expand...
Click to collapse
That band switching feature is to set network preferences for your carrier outside of the US. The radio hardware does not support UMTS 3G. You will only be able to get EDGE speeds at best from this device on your carrier. You need the RHOD300 (Tilt2) to get 3G on your network.
that´s a bummer
thanks for your answers
lean04 said:
that´s a bummer
thanks for your answers
Click to expand...
Click to collapse
Anytime. Sorry for the disappointing news.
Is there any way know yet to force the incredible 2 to switch over to GSM mode once you unlock the sim
Sent from my ADR6350 using XDA Premium App
b0gman said:
Is there any way know yet to force the incredible 2 to switch over to GSM mode once you unlock the sim
Sent from my ADR6350 using XDA Premium App
Click to expand...
Click to collapse
I would like to know this as well.
I heard that the Thunderbolt can't do this so I doubt it.
Moved to general as not android development.
RacecarBMW said:
I would like to know this as well.
I heard that the Thunderbolt can't do this so I doubt it.
Click to expand...
Click to collapse
The Thunderbolt isn't a world phone, which is why you can't do it on the Thunderbolt.
Have you tried putting in a different SIM card? I haven't tried that, but if you switch to a GSM carrier, there should be a way to turn off CDMA roaming and enable the GSM options, that appear to be grey-ed out for some reason...
Called Verizon Global Support a few days ago and had them give me the SIM unlock code. Once unlocked I was able to insert a T-Mobile SIM card. I went to Settings>Call>Preferred Network and changed to GSM. I was able to make/receive phone calls on the T-Mobile network as well as connect to the Edge data service. I did however have to add the APN setting for T-Moble (epc.tmobile.com) to get Edge service.
I got the I2 a week ago and 2 times I have unlocked the screen to see a dialog box saying I have lost my data connection and prompted me to choose between CDMA and GSM modes. I haven't tried to switch modes, but it worries me that I am losing the data connection.
stings70 said:
Called Verizon Global Support a few days ago and had them give me the SIM unlock code. Once unlocked I was able to insert a T-Mobile SIM card. I went to Settings>Call>Preferred Network and changed to GSM. I was able to make/receive phone calls on the T-Mobile network as well as connect to the Edge data service. I did however have to add the APN setting for T-Moble (epc.tmobile.com) to get Edge service.
Click to expand...
Click to collapse
Even though the data is just Edge, it works on T-Mobile in the U.S.? Interesting. The only other global Android devices on Verizon so far - the Droid Pro and the Droid 2 Global - have T-Mobile and AT&T bands completely locked out. I wonder if it would work on AT&T as well.
Yah it works quite well you have to manually change the apns in the GSM settings. I did find the switch to change calling modes between GSM and cdma it's under settings ->call settings
Sent from my ADR6350 using XDA Premium App
If it's not switching over on its own, try the test mode - *#*#4636#*#* and then in there you can choose GSM (PRL) or WCDMA preferred, both of which switch you onto GSM or 3G GSM respectively.
Did anybory try?
BobbySteel said:
If it's not switching over on its own, try the test mode - *#*#4636#*#* and then in there you can choose GSM (PRL) or WCDMA preferred, both of which switch you onto GSM or 3G GSM respectively.
Click to expand...
Click to collapse
Did anybory try this? Is 3G works on Inc2?
By the way:
Inc2 supports:
CDMA 800/1900MHz +
UMTS/HSPA 900/2100MHz +
GSM/GPRS/EDGE 850/900/1800/1900MHz
And some info from t-mobile forum:
Mobile USA's frequency is the AWS 1700/2100 band also known as UMTS1700. Europe's band is 900/2100, also known as UMTS2100. The phone must be able to connect to uplink and downlink for it to be compatible on a network. Since his Nokia was UMTS2100 it could not connect to T-Mobile's 1700mhz uplink frequency.
3g works in the uk. No idea about T-Mobile
Sent from my Motorola RAZR via SMS
BobbySteel said:
3g works in the uk. No idea about T-Mobile
Sent from my Motorola RAZR via SMS
Click to expand...
Click to collapse
What operator and what frequencies of 3g?
stings70 said:
Called Verizon Global Support a few days ago and had them give me the SIM unlock code. Once unlocked I was able to insert a T-Mobile SIM card. I went to Settings>Call>Preferred Network and changed to GSM. I was able to make/receive phone calls on the T-Mobile network as well as connect to the Edge data service. I did however have to add the APN setting for T-Moble (epc.tmobile.com) to get Edge service.
Click to expand...
Click to collapse
How they gave your unlock code - did you by phone by _retail price_?
Does anyone know if it would be possible to only have T-Mobile US SIM handle only the calls & texts part, and Verizon data with the Pre-Paid $30. unlimited data?
NexusOneOwner said:
Does anyone know if it would be possible to only have T-Mobile US SIM handle only the calls & texts part, and Verizon data with the Pre-Paid $30. unlimited data?
Click to expand...
Click to collapse
Doesn't seem very likely, but honestly I don't know.
alisher said:
How they gave your unlock code - did you by phone by _retail price_?
Click to expand...
Click to collapse
You call Verizon. They verify that you've been a customer in good standing for 6 months or more, and they give you the unlock code. No charge. You can't unlock more than one phone per account per some period (13 months, or something like that). It doesn't matter if you have a contract term, etc. (you don't need to pay full retail for the phone).
Once you're unlocked, you can use a SIM from whatever carrier you choose. There have been reports that you can't use others in the US (AT&T, T-Mobile), but I've not tried that. I've had no troubles using a Cingular SIM in Europe.
Oops from my Incredible 2 using xda premium
does this method work for a us cellular customer? i have the electrify and plan to travel later this year. the whole idea for the world phone was to have it work there as well without the god awful international roaming.
i just use the *#*#4636#*#* code and put it in gsm/cmda auto? then how do i get it to recognize the sim when i get there?
i am using cm7
which an unlock code ( from Verizon - U have to unlock the first time ), Inc 2 can use GMS network ( both GPRS, Edge, 3G - HSDPA 900 / 2100 )
I'm using an unlocked inc 2 in Vietnam, with GSM network. It work well, both 3G and GPRS
PS : Using stock rom ( 2.3.3 ), AOKP and some other rom ICS doesn't work ( may be a part like sms doesn't work ).
FYI - being a VZW customer in good standing, I called up - using another phone line - Global Support & requested Sim unlocking, after verifying my identity - reading the disclaimer/emailing the disclosure docs, etc. & placing me on hold for a short while, came back & gave step-by-step instructions on inputting the 8 digit unlock code into the DI2 - the phone's screen displaying "unlocked" (it's good for life) then powered down & rebooted, and it was good to go.
I replaced the stock Vodafone SIM (note: it's not provisioned or activated) with an active China Mobile Sim card (that I normally used with an unlocked quad-band LG or Sony Ericsson "feature" phone) - turned off roaming data & mobile data access before switching over to GSM mode, and, it's success & ready - registered on AT&T's 3G network (CMCC's roaming partner, also with T-Mobile.)
I was able to send short codes to obtain my CM account balance, etc. (*#130# - Send for my overseas carrier)
Just returned from a weekend cruise to Bermuda (UK) trip and it registered with DigiCel for roaming on the island with GSM active only - (CellularOne is also available for roaming purposes) These are the same carrier for AT&T and T-Mobile Sims when going to this 21 miles island out in the Atlantic.
While on the cruise ship (Royal Caribbean) - it registered with their satellite based ship services for voice/SMS and GPRS (yes, it's slow 2G) services in GSM mode (it also worked in CDMA mode - beware of expensive Mobile Data pricing & per minutes calling rates ...)
FYI - back here on USA mainland now, prepaid AT&T Gophone & T-Mobile Sim cards worked on this unlocked DI2 (Edge/2G data only plus Voice/SMS) - it's easy to change APN settings to match AT&T or T-Mo if the account is provisioned for it - using both SkyRaider's custom ROM and Nijitsu's Sense ROM here.
So a mate has a P2 and can't seem to get it to connect to 4G. The SIM card and network is Vodafone UK.
What I know/have tried:
- SIM in both sim slots will connect to 3.5G (HSDPA) on Vodafone network
- A different SIM (Three UK) did connect to 4G in the SIM slot 1 (did not try SIM slot 2)
- Settings says 4G preferred network is selected
- By typing *#*#4636#*#* into dialer and going to phone info displays LTE is selected as one of the preferred networks
- The same SIM (Vodafone UK one) connects to 4G in his old phone and has done in all his old phones
- APN settings are correct, verified by Vodafone support plus myself looking online
So he talked to Vodafone support again today who said try speed tests in 3 different locations and report back. He has done 1 which is 14mbps down and 3mbps up which is slow for 4G (I get 64mbps down and 24mbps up, different network but shows his is slow and likely not 4G). Similarly we we know the device can connect to 4G from using the Three UK SIM.
My gut instinct is it's a network issue, all device settings seem okay, nothing is screaming out of place. The issue though is that the SIM has connected to 4G in his other devices so confuses me.
So, I'd love your thoughts and inputs on this. Any suggestions welcome that may help! Thanks!
matt4321 said:
So a mate has a P2 and can't seem to get it to connect to 4G. The SIM card and network is Vodafone UK.
What I know/have tried:
- SIM in both sim slots will connect to 3.5G (HSDPA) on Vodafone network
- A different SIM (Three UK) did connect to 4G in the SIM slot 1 (did not try SIM slot 2)
- Settings says 4G preferred network is selected
- By typing *#*#4636#*#* into dialer and going to phone info displays LTE is selected as one of the preferred networks
- The same SIM (Vodafone UK one) connects to 4G in his old phone and has done in all his old phones
- APN settings are correct, verified by Vodafone support plus myself looking online
So he talked to Vodafone support again today who said try speed tests in 3 different locations and report back. He has done 1 which is 14mbps down and 3mbps up which is slow for 4G (I get 64mbps down and 24mbps up, different network but shows his is slow and likely not 4G). Similarly we we know the device can connect to 4G from using the Three UK SIM.
My gut instinct is it's a network issue, all device settings seem okay, nothing is screaming out of place. The issue though is that the SIM has connected to 4G in his other devices so confuses me.
So, I'd love your thoughts and inputs on this. Any suggestions welcome that may help! Thanks!
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Click to collapse
I dont know the device or network specifically But I know that the device has to support the same lte bands that the carrier broadcasts in LTE in that area Just because the carrier broadcasts say 900mhtz in LTE, if the device dont support 900 in lte then it wont get it. I have had cases wher 3g is the same freq as 4g it still wont pick it up If you get what I am saying. May be a issue or not.
to further add he might take one of the old devices and use a signal catching app to see what lte bands are broadcasted in his area then compare to device
Thanks @TheMadScientist, all suggestions welcome still. I'm gunna continue to keep an eye on this, research answers and send him a link to this so he can test anything on the device.
matt4321 said:
Thanks @TheMadScientist, all suggestions welcome still. I'm gunna continue to keep an eye on this, research answers and send him a link to this so he can test anything on the device.
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Click to collapse
We get this issue a lot using sprint phones unlocked international gsm. A lot of carriers seem to not use the same lte bands.
Then naturly verizon devices come gsm unlocked but verizons radios are crap and do not pick anything up half the time. My veriz g5 can get lte next town over cause they use a supported band and no towers near me use it. So i get 3g. And a lot of h h+ i ise lte discovery as the app on mine.
Just hope this isnt his issue as its a harware compatibility .
TheMadScientist said:
We get this issue a lot using sprint phones unlocked international gsm. A lot of carriers seem to not use the same lte bands.
Then naturly verizon devices come gsm unlocked but verizons radios are crap and do not pick anything up half the time. My veriz g5 can get lte next town over cause they use a supported band and no towers near me use it. So i get 3g. And a lot of h h+ i ise lte discovery as the app on mine.
Just hope this isnt his issue as its a harware compatibility .
Click to expand...
Click to collapse
So I checked the network and the device (on GSM arena) and it seems 4G bands are supported. But I'll try that lte discovery app with him soon you mentioned and see what results that yields
@matt4321
http://www.techadvisor.co.uk/how-to...r-phone-is-supported-by-your-network-3597426/
You should check the manuals if there is support for 2600 frequency on phone.
Maybe the phone supports 800/1800(cos 3 is on 1800) and you don't have 800 band in area.
You will have to contact Lenovo and ask them to change baseband or whatever...
or Perhaps get a new phone with support for 2600
Had the same problem using a LG G3. I tried this App to trigger LTE only. Then the Phone connect to the LTE network.
https://play.google.com/store/apps/details?id=com.tapbase.LTEswitcher&hl=de