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Been running CM 10.2 nightlies for a few weeks and everything has been smooth except the phone is stuck on 3g. If I go into mobile networks and network mode it was set to "CDMA + LTE/EvDo". Tried "Global" and still the same thing. The only way I can get it to work is if I choose "LTE" (and I did confirm it was running at full LTE speeds) which then makes calling impossible.
Not sure what to do, have played around with APN's but haven't found anything that works yet.
Also, tried updating to the latest radio and that didn't help.
Any ideas?
Follow my thread . I just went through the same thing. Short answer: new sim card
http://forum.xda-developers.com/showthread.php?t=2551181
Can't keep 4g/LTE and voice calls at the same time
Sent from my XT907 using Tapatalk
I saw your thread but I don't understand how I would be able to get LTE service (through forcing by selecting LTE only) if my SIM card was somehow fried. You would think if it was a bad SIM it would be more than just that. Also, both our cards "failing" in the same way.
I do remember dialing *228 a while back as I was having some connection issues but can't remember if I saw LTE before doing that. Almost think its Verizon's way of sticking it to those that unlock and flash roms (when you *228 you have to come replace your sim and get "outed").
atison said:
I saw your thread but I don't understand how I would be able to get LTE service (through forcing by selecting LTE only) if my SIM card was somehow fried. You would think if it was a bad SIM it would be more than just that. Also, both our cards "failing" in the same way.
I do remember dialing *228 a while back as I was having some connection issues but can't remember if I saw LTE before doing that. Almost think its Verizon's way of sticking it to those that unlock and flash roms (when you *228 you have to come replace your sim and get "outed").
Click to expand...
Click to collapse
One possibility is if you ever messed with *#*#4636#*#* & did anything to 3 dot menu band, you can have a hosed radio partition. Rsd restore is only fix.
Vzw does indeed want us not rooted as (edit)a lot rooted users cause them BIG headaches.
atison said:
I saw your thread but I don't understand how I would be able to get LTE service (through forcing by selecting LTE only) if my SIM card was somehow fried. You would think if it was a bad SIM it would be more than just that. Also, both our cards "failing" in the same way.
I do remember dialing *228 a while back as I was having some connection issues but can't remember if I saw LTE before doing that. Almost think its Verizon's way of sticking it to those that unlock and flash roms (when you *228 you have to come replace your sim and get "outed").
Click to expand...
Click to collapse
Read through the whole thread. You may find some similarities and answers.
Sent from my XT907 using Tapatalk
atison said:
I saw your thread but I don't understand how I would be able to get LTE service (through forcing by selecting LTE only) if my SIM card was somehow fried. You would think if it was a bad SIM it would be more than just that. Also, both our cards "failing" in the same way.
I do remember dialing *228 a while back as I was having some connection issues but can't remember if I saw LTE before doing that. Almost think its Verizon's way of sticking it to those that unlock and flash roms (when you *228 you have to come replace your sim and get "outed").
Click to expand...
Click to collapse
When my sim went from 4g on boot to 3g in 2 min, I just called & they mailed me one.
just ordered a new sim (NFC sim). We will see if this fixes it.
Thought I'd post my experience on here just because I know a lot of us are switching over and I must have gone through fifteen different threads to figure out how to get my data, talk, and text working. To start off I bought a T-Mobile nano sim and just plugged it straight into my droid thinking it would all be gravy...nope. This is exactly what I had to do: First, go into your mobile network settings and change to LTE/UTMS/GSM. Second, change your (Select Network) to GSM only. Third, create an APN that is as follows: NAME;T-Mobile, APN; epc. tmobile. com, MMSC; ht tp:// mms . msg. eng. t-mobile . com/mms/wapenc . APN Type; default, mms, supl APN Protocol; ip4/ip6. LEave everything else alone. trust me this is the most reliable way to go about doing the switch over and the data is fast, plenty fast. The phone info . apk app does work but for the ultra its not needed so don't worry with it. HAPPY SAVINGS all you DROID LOVERS.
Thanks for the help. I have unlimited Verizon with my bootloader unlocked, but I have issues with good service here where I live and work with Verizon. T-mobile may be better, so I am considering trying it out soon. I am going to test TMO for 7 days with their free program and see. If it works, I may just follow these directions and use my Droid Maxx.
Jeff
How ur work on gsm? If I out mines on gsm internet won't work. Umts is the only way mines work. I get h+ but at times its slow. Worst playing games
P.s am on metro PCs same crap lol T-Mobile all my settings r from T-Mobile
Sent from my XT1080 using XDA Free mobile app
I picked up a Droid Maxx XT1080M (Not the ultra, but they seem so.. similar....) which was unlocked.
I popped a NanoSIM into it, rebooted, and it took a minute but the device figured out to auto switch to the GSM/UMTS/LTE side of the baseband. After that the only thing I needed to do was add the T-Mobile LTE APN.
I'd check your APN and make sure it's on fast.t-mobile.com. From what I've noticed is that when I boot it up, and WIFI is off, if I am to start browsing it goes from E (edge) to H (HSPA) to LTE in about ... 2-3 minutes of browsing/using data. Then it sticks on LTE. This is not always the case as I've rebooted a few times tonight without it bumping down to EDGE.
Getting 43mbps down and 33 mbps up on LTE, and 6down/2up on UMTS/HSPA. In Seattle... This device hits the sweet spots for T-Mobile LTE bands with 1700/2100. We'll miss out on their 1900 build-out, but should still have HSPA+ on those other bands anyway.
One odd message I get after every reboot is The SIM card is from an unknown source. does not seem to affect anything. Anyone know if this is normal? I've not seen this error before on other unlocked devices.
I am on metro, I don't have that issues at all. I pop in Sim, did a apn n wallah 4g LTE n every work fine took me a hot minute to figure out how to get LTE to work.
The Sim car error is Cuz its a Verizon fone. It doesn't effect the fone at all. Once we get root n we get to flash I know we won't c that no more.
Sent from my XT1080 using XDA Free mobile app
Sadly, my phone seems to have a borked radio.
What happened? So I popped in T-Mobile SIM card, and calling and texting is a charm. (Except for the Unknown SIM issue, of course.) I then found out that I was getting NO data after a factory reset. So then I looked to downgrade OS version, blah blah, flashed radio, did fastboot config carrier, so on and so forth. No joy. Sigh...
EDIT: Just realized I revived the topic...
mr_verystock said:
Sadly, my phone seems to have a borked radio.
What happened? So I popped in T-Mobile SIM card, and calling and texting is a charm. (Except for the Unknown SIM issue, of course.) I then found out that I was getting NO data after a factory reset. So then I looked to downgrade OS version, blah blah, flashed radio, did fastboot config carrier, so on and so forth. No joy. Sigh...
EDIT: Just realized I revived the topic...
Click to expand...
Click to collapse
Verizon has changed something in the system part of the most recent ROMs to prevent t-mobile use. I had the same issues. For some, I could bypass the block by removing some of the CDMA references in build.prop. For the most recent Verizon ROM, nothing I tried worked.
Luckily, I am unlocked. Moved originally to a ported Moto X ROM, and then to CM12, and everything works fine there.
That's odd, I'm on the latest build and have 0 issues with Tmobile.
I just plugged my T-Mobile nano sim in last night and used the instructions on this thread and a few others around the internet to get T-Mobile 4GLTE or HSPA+ to work. I can text, make calls, and I get all the Edge (shown as an "E") data i want, but It is way to slow to be useful. I have tried it on both my droid maxx phones (one 2013 - 32gb, and one 2014 - 16gb). Both are on latest system version 24.3.7. Any other advice to make data work decent? I can get NO 4G or HSPA+
Does tmo say you have wcdma or LTE access where you are.
I am having the same issues after FDR and data wouldn't work anymore. In my area I am LTE so the droid ultra that worked well in the last 4 months on T-Mobile, I think it is a software problem.
Yes it is software problem. If you can get your phone rooted and bootloader unlocked then reflash the rom it works perfectly. I get LTE on tmobile on the CM rom no problem.
I run LTE just fine.. All I needed to do was add T-Mobiles APN to my phone..
Sent from my XT1080
I also left it on "Global"
Sent from my XT1080
I have a Vzw LG G2 VS980 that I currently use with Red Pocket on the Vzw network, and I previously used it on Tracfone, also on the Vzw network, and everything worked normally.
I also successfully used it with Red Pocket on the AT&T network as well as with an old Lycamobile legacy SIM, using the T-Mo network.
The problem I'm having is that I can't get cellular data to work using a Piranha Mobile or FreedomPop Global SIM card.
There are no error messages displayed, and I'm able to make voice calls with the Piranha Mobile SIM card. The FreedomPop Global SIM card doesn't come with traditional voice service, but there are bars of service showing.
The APNs are correct:
For Piranha Mobile, I'm using openroamer.com .
For FreedomPop, I'm using freedompop.foggmobile.com .
The Vzw LG G2 VS980 is rooted, but running stock 5.0.2. I rolled it back to stock 4.2.2, but cellular data still wouldn't work with the above SIMs. I also tried a custom ROM, and still nothing.
Can anybody suggest something to try to get cellular data to work with the above SIM cards? I'd greatly appreciate it!
I should also add that I DID enable global roaming in settings, and I did play with all of the System select>>Network mode settings, to no avail.
Also, even if people reading my question don't have an answer, if you could suggest some way to contact someone that could help, I'd be very grateful. Thanks again!
Isn't there any help available for my issue? Thanks.
I sure could use some help in figuring out how to fix this problem. Thanks!
Did you ever figure this out? I am experiencing the same problem
smsc said:
Did you ever figure this out? I am experiencing the same problem
Click to expand...
Click to collapse
Unfortunately, no.
My LG G2 also was difficult to get activated on Vzw MVNOs. I used it on 2 Vzw MVNOs, and both times, it wouldn't activate the SIM card properly. Both MVNOs had to do quite a bit of work to get it to activate properly. There was no issue with the ESN/IEMI, it was just that the hardware wouldn't activate the SIM card properly.
Not only that, my LG G2 VS980 developed dead spots on the touch screen in March, 2017. It's still usable, but the dead spots make it difficult, so it is mostly retired now.
Oh, well...
I'd try getting into your G2's phone "diagnostic" menu (or whatever it's called), and doing a manual band set. That seemed to help me when I put in an AT&T SIM in my vs980.
It could also be that FreedomPop or whomever you're trying to use doesn't support the network bands that the vs980 uses.
Hi, i recently buy an used nexus 4 in ebay, simply for nostalgia, so, i´m in Mexico, the nexus 4 that i had 3 year ago, was unlocked, so, i supose this too, when arrive, i connect to wifi immediately without any sim inside, the cellphone request for one upgrade, i accept, after that, i put my sim from Virgin Mobile and the nexus only showed " no simcard inside, only emergency calls.... y try with other carrier, weex mexico (virgin and weex work in Movistar, they are OMV) and the same all.... finally y put a sim from at&t mexico, nothing... with the sim (att) inside, i downgrade to android 4.4.4, when woke up, the nexus 4 with the same result, No simcard, so, the cellphone wasn´t detecting any simcard, after that, it request for the next upgrade, lollipop 5.0.1 that i accept, but in this chance, the nexus with the simcard from ATT showing signal¡¡¡¡¡ the cellphone was working at 100%, i made a couple calls, without problems.
But, i try with the other 2 simcards, and it doesnt detecting, simply show again No simcard, emergency only, so i switch back my Att sim and this is detecting without problems....
I install a rom named Pure Nexus, waiting for work, but the same, only with ATT simcard work, so i downgrade again to 4.4.4 but in this chance with other simcard differnt from AT&T, Virgin mobile.... but nothing, nexus 4 is not detecting any other simcard than at&t¡¡¡¡¡¡
What can i try? could be a nexus 4 locked only for one carrier or what? in google dont appear in blacklist, the imei is good nor corrupted... could be the sim holding?
try going back to stock using the nexus 4 toolkit,then root, and try one of the hybrid models LTE enabler or download the 107-3, if that doesnt work also, then it might be defective.
Zestar said:
try going back to stock using the nexus 4 toolkit,then root, and try one of the hybrid models LTE enabler or download the 107-3, if that doesnt work also, then it might be defective.
Click to expand...
Click to collapse
excuse me, what is "download the 107-3" ? its a rom? i download 4.4.4 from google,
nismo87 said:
excuse me, what is "download the 107-3" ? its a rom? i download 4.4.4 from google,
Click to expand...
Click to collapse
use this to go back to stock
http://www.wugfresh.com/nrt/
you will get android 5.1.1, you can also install custom recovery and root using it.
then if the sims doesnt work, change the modem using the LTE Enabler you can get it from the Play Store.
it has the modem until version 104-33, but im using another one the 107-33 that i got from
https://drive.google.com/open?id=0B77BTW0zStYCZmpPR0xTaWE5OUU
104 33 and 107 33 are hybrid modems, but you can also install stock modems,
the modem is the one that allows you to make calls and use the data channel in your phone
hope that makes sense, let me know how it goes. regards.
Zestar said:
use this to go back to stock
http://www.wugfresh.com/nrt/
you will get android 5.1.1, you can also install custom recovery and root using it.
then if the sims doesnt work, change the modem using the LTE Enabler you can get it from the Play Store.
it has the modem until version 104-33, but im using another one the 107-33 that i got from
https://drive.google.com/open?id=0B77BTW0zStYCZmpPR0xTaWE5OUU
104 33 and 107 33 are hybrid modems, but you can also install stock modems,
the modem is the one that allows you to make calls and use the data channel in your phone
hope that makes sense, let me know how it goes. regards.
Click to expand...
Click to collapse
well, i flash EnableNexus4LTE.zip and LTEhybrid33-84 without good news, i have the same issue, only at&t mexico sim is detected and the others no, well, i´m now with 4G LTE but only working in at&t
i don´t know what other things trying in the nexus, seem like only prefer at&t sim and no one else.
Adding information, i have sims from cricket USA and t-mobile USA, i know is not supported in México, but it will be for try to get something like: Sim not activated... or invalid sim, but other different from my nightmare: NO sim, please insert....
SOLVE:
I´ll auto answer... after a lot off attempts, i found the problem is the sim reader, like i posted before, only working with at&t Mexico sim, so, I watch the thickness of this was little bit smaller than others, my "strategy" was try to imitate the fact that at&t sim is making contact gently on pins, i take a 3in1 simcard, and i put the nano sim in micro sim adapter (included in the sim) but not in all (i don know exactly the words in english), so by this waya the nano sim standing on a little bit from microsim adapter.
when i insert the sim by this way an my nexus, and turn on, the cellphone recognize inmediatly the sim, so i found the key of this problem, like i said, the problem here is the sim reader, because, a normal and good sim reader not need this tricks to get signal.......
nismo87 said:
SOLVE:
I´ll auto answer... after a lot off attempts, i found the problem is the sim reader, like i posted before, only working with at&t Mexico sim, so, I watch the thickness of this was little bit smaller than others, my "strategy" was try to imitate the fact that at&t sim is making contact gently on pins, i take a 3in1 simcard, and i put the nano sim in micro sim adapter (included in the sim) but not in all (i don know exactly the words in english), so by this waya the nano sim standing on a little bit from microsim adapter.
when i insert the sim by this way an my nexus, and turn on, the cellphone recognize inmediatly the sim, so i found the key of this problem, like i said, the problem here is the sim reader, because, a normal and good sim reader not need this tricks to get signal.......
Click to expand...
Click to collapse
I glad its working now, you can stay on 5.1.1 with the hybrid modem if you got the 4G signal, or return to 4.4.4 if you want. regards.
Zestar said:
I glad its working now, you can stay on 5.1.1 with the hybrid modem if you got the 4G signal, or return to 4.4.4 if you want. regards.
Click to expand...
Click to collapse
yeah¡¡¡, i´ll install a hybrid modem, but the 4G is simulated or real with this?
nismo87 said:
yeah¡¡¡, i´ll install a hybrid modem, but the 4G is simulated or real with this?
Click to expand...
Click to collapse
i think is real, speedtest results are much better using 4G. I got around 40mbps.
Zestar said:
i think is real, speedtest results are much better using 4G. I got around 40mbps.
Click to expand...
Click to collapse
i just sintall LTEhybrid33-84 and EnableNexus4LTE with TWRP custome recovery, but apparently without any 4G signal, in the menu mobile networks only i can choose 2G & 3G.... but the baseband does change.....
so, i use the trick hidden menu with *#*#4636#*#* and i choose LTE only, only with this my nexus 4 has 4G signal¡¡¡¡¡¡ but, if i come back to mobile networks, again only i can see 2g and 3g and the little 4G on top disappear.... so i need to come back again to hidden menu....
conclusion, mobile networks menu it will prohibited for me :silly:
nismo87 said:
i just sintall LTEhybrid33-84 and EnableNexus4LTE with TWRP custome recovery, but apparently without any 4G signal, in the menu mobile networks only i can choose 2G & 3G.... but the baseband does change.....
so, i use the trick hidden menu with *#*#4636#*#* and i choose LTE only, only with this my nexus 4 has 4G signal¡¡¡¡¡¡ but, if i come back to mobile networks, again only i can see 2g and 3g and the little 4G on top disappear.... so i need to come back again to hidden menu....
conclusion, mobile networks menu it will prohibited for me :silly:
Click to expand...
Click to collapse
you should be able to select "LTE/GSM Auto" that way the phone will switch to GSM when needed.
and the option is only visible under *#*#4636#*#* menu, also, we have to switch to LTE/GSM auto, if the phone is restarted. there is a way to make it persistent, but I haven't tried. i'm fine with it since i don't restart the phone too often.
hope this helps, regards.
I know this has other threads, but I wanted to post something that helped me get VoLTE working that none of the other threads addressed.
Quick background: new to TMobile, new to the 1+ brand. Rooted, stock. I could get LTE, but I kept getting kicked to roaming AT&T H+ or 3G, couldn't get VoLTE, and very slows speeds even when on LTE. Tried every APN combo, network settings reset, factory phone reset, tried every *#*#4636#*#* preferred network type...nothing. Chatted in to 1+ asking if I could speak to technical support. The response was the only way to fix it was to factory reset (which I had already done) and downgrade OOS. The newest OOS has the T-Mobile optimizations, so downgrading makes no sense! Needless to say, the whole 30 min chat was a waste of time and just a bunch of weak canned responses with no attempt to really help or figure out how to escalate me to someone with some knowledge of the APNs and settings needed.
Out of desperation, or since I had tried every other possible trick, I went under my T-Mobile SIM, Network Operators, and toggled Auto Choose and manually chose TMobile 4G.
Boom, full bands 4, 12 and VoLTE, and normal speeds! Carrier aggregation is even working sometimes.
I don't know why Auto Choose doesn't know how to grab 4G permanently, but everything is working!
Does anyone have any idea why this fixed it? Since I choose 4G, will I lose my ability to get 3G in rural areas? I don't feel like there was much info on how VoLTE is provisioned on the phone.
What's everyone's experience with the preferred network settings? I'm currently in LTE/UMTS, and I don't have the LTE/GSM option that apparently everyone else has...?
Also, does everyone else have as sporadic speeds as I do? One moment it'll be 40 down, next it'll be 6? I know it has to do with bands, but should there be a way to even that out a little?
Sidenote: I really like 1+ mentality about rooting and software, since I have to have a rooted phone, but this experience really soured my first impression. Plus their 1+5 is a major letdown to me. I don't think I'll purchase anymore 1+ products.
Feel free to correct any misinformation in my post.
I also have noticed when I try streaming, webpages or speedtests the little LTE+ carrier aggregation kicks in to combine band 4 and 12 and I get pretty good speeds. See screenshot
My speeds do definitely vary on Tmobiles network. Isn't an issue for me, everything streams fine, also i haven't had an issue with VOLTE since I got the phone in February..
I noticed when I'm in a roaming area, instead of roaming now, I completely lose service. I believe this is because I manually selected TMobile 4G as my operator instead of auto, which would allow the phone to jump to AT&T. Any ideas?
So still having problems, but only when traveling. If I have network operator on "auto" it'll select AT&T roaming, but then it'll just stick then and never switch back to TMobile, even in full strength band 4 or 12 areas. I have to reboot, and toggle auto for it to grab a T-Mobile signal. Very irritating. This also kicks the phone off VoLTE, and I've yet to get it back. Not sure if this is TMobile or the phone's fault. Tried everything I can think of. Any ideas?
izzyfanto said:
So still having problems, but only when traveling. If I have network operator on "auto" it'll select AT&T roaming, but then it'll just stick then and never switch back to TMobile, even in full strength band 4 or 12 areas. I have to reboot, and toggle auto for it to grab a T-Mobile signal. Very irritating. This also kicks the phone off VoLTE, and I've yet to get it back. Not sure if this is TMobile or the phone's fault. Tried everything I can think of. Any ideas?
Click to expand...
Click to collapse
Get a new SIM card
Lancez said:
Get a new SIM card
Click to expand...
Click to collapse
Excuse my ignorance, but what would a new SIM accomplish, technically speaking that is?
FYI, my wife's HTC 10 does the same thing. That would make two bad SIMs unlikely?
izzyfanto said:
Excuse my ignorance, but what would a new SIM accomplish, technically speaking that is?
FYI, my wife's HTC 10 does the same thing. That would make two bad SIMs unlikely?
Click to expand...
Click to collapse
I've had same problem as yours, I went to T-Mobile store and told them what was going on. They switched my SIM card and problem fixed. I was told because my SIM was too old (4 years at least) that's why i was having such issue.
Lancez said:
Get a new SIM card
Click to expand...
Click to collapse
Lancez said:
I've had same problem as yours, I went to T-Mobile store and told them what was going on. They switched my SIM card and problem fixed. I was told because my SIM was too old (4 years at least) that's why i was having such issue.
Click to expand...
Click to collapse
Gotcha thanks, I'll give it a try! What's weird is our SIMs are only weeks old....
izzyfanto said:
Gotcha thanks, I'll give it a try! What's weird is our SIMs are only weeks old....
Click to expand...
Click to collapse
That's what I've been thru and got fixed. Hopefully it'll work for you too
New SIM, no change
This phone has the features I want, and T-Mobile has the speeds I want, but this is frustrating to be kicked to roaming and no VoLTE....
izzyfanto said:
New SIM, no change
This phone has the features I want, and T-Mobile has the speeds I want, but this is frustrating to be kicked to roaming and no VoLTE....
Click to expand...
Click to collapse
Sorry to hear that it didn't work out for you. I attached couple of screenshots just to show you that it's been working good for me after I switched SIM card.
Edit: have you tried to create a new APN instead of using the default APN?
Edit 2: I can show you my APN if you want
Sorry, must have not been clear. I can get LTE, just not automatically after going into a roaming area. It just sticks on AT&T roaming until I manually go back in and select TMobile 4G. The problem with that is when I do need roaming to work, it won't because I have TMobile 4G manually selected.
Another problem is that I can't get VoLTE to stay very long, in fact i haven't had it for a couple days, despite me being in a very strong LTE area.
I appreciate your help
Edit: yes, if I could see your APN that'd be great!
izzyfanto said:
Sorry, must have not been clear. I can get LTE, just not automatically after going into a roaming area. It just sticks on AT&T roaming until I manually go back in and select TMobile 4G. The problem with that is when I do need roaming to work, it won't because I have TMobile 4G manually selected.
Another problem is that I can't get VoLTE to stay very long, in fact i haven't had it for a couple days, despite me being in a very strong LTE area.
I appreciate your help
Edit: yes, if I could see your APN that'd be great!
Click to expand...
Click to collapse
Just create a new APN exactly as mine and see if it works
Hmm yeah that's the one I have too....
Btw, maybe I just needed to wait,, but VoLTE is working again, and it's reporting the correct IMEI (it wasn't before but TMobile told me that wasn't a big deal...I beg to differ because now my TMobile app is working whereas before it wasn't) Fingers crossed the new SIM did the trick! I'll know tomorrow when I commute to work and it starts roaming whether it'll reacquire T-Mobile and VoLTE
Quick update: I definitely have noticed an improvement in jumping off AT&T roaming back onto TMobile LTE. AND VoLTE is now sticking. But... I'm inclined to think it's something related to me not having my second Verizon SIM in. I have a company work number on a Verizon SIM that enables me to text and call from that number. Obviously data doesn't work but that doesn't bother me since I have TMobile unlimited on my personal SIM. When I insert my Verizon SIM in the second slot, my IMEI number changes in the testing menu, but not my settings info! What the heck? The IMEI number identifies the phone and shouldn't change...I thought? Very confused why part of my phone retains the correct IMEI and the testing changes. I instantly lose VoLTE and my TMobile app fails to authenticate.
What is going on???
UPDATE:
I popped my Verizon SIM in again (slot 1) and it's reporting the xx...15 IMEI (correct one on my T-Mobile account) and the T-Mobile SIM (slot 2) then drops to xx...07! I'm so confused! I thought the IMEI is NOT supposed to change because it identifies the device?? The ICCID is the SIM number? Why is Verizon SIM screwing this up?