Database Users

[Q] Can't get I337 to work with Verizon after following unlock guide.

I have a SGH-I337 (AT&T) that I'm trying to get to work with a Verizon sim. I followed the steps in the post below.
http://forum.xda-developers.com/gal...aranteed-free-sim-unlock-mk2-nb1-nc1-t2852979
I follow the steps as stated but at the end the phone has no signal/loses signal using Verizon sim's.
Usually after a fresh boot, the phone will have bars but no data and cannot make calls. The phone states EMERGENCY CALLS ONLY at this point. After a few minutes the service bars will disappear and be replaced with a NO SERVICE indicator.
The phone no longer indicates an invalid sim, but does not auto load APN settings. Manually inputting the Verizon APN settings does not fix it either.
I have checked and it does NOT show the NULL IMEI on the *#06#. Also with the Verizon sim the hidden menus don't always function (*#0011# and such) although I've read that is an AT&T only thing, I'm not sure if that true.
When I insert an AT&T Sim it gets service/data immediately upon booting. I've also tried two different Verizon sim cards.
Thoughts or Suggestions? What am I missing?

VTAssault said:
I have a SGH-I337 (AT&T) that I'm trying to get to work with a Verizon sim. I followed the steps in the post below.
http://forum.xda-developers.com/gal...aranteed-free-sim-unlock-mk2-nb1-nc1-t2852979
I follow the steps as stated but at the end the phone has no signal/loses signal using Verizon sim's.
Usually after a fresh boot, the phone will have bars but no data and cannot make calls. The phone states EMERGENCY CALLS ONLY at this point. After a few minutes the service bars will disappear and be replaced with a NO SERVICE indicator.
The phone no longer indicates an invalid sim, but does not auto load APN settings. Manually inputting the Verizon APN settings does not fix it either.
I have checked and it does NOT show the NULL IMEI on the *#06#. Also with the Verizon sim the hidden menus don't always function (*#0011# and such) although I've read that is an AT&T only thing, I'm not sure if that true.
When I insert an AT&T Sim it gets service/data immediately upon booting. I've also tried two different Verizon sim cards.
Thoughts or Suggestions? What am I missing?
Click to expand...
Click to collapse
I don't own any Verizon phones myself, so I could be totally wrong but:
- Verizon's SIM cards are just for data.
- Verizon uses CDMA (Your subscriber identity is in the ESN/IMEI)
- AT&T uses GSM (Your subscriber identity is in the SIM)
Both networks require you to authenticate yourself with your subscriber identity before they will give you data access.
Sounds like Verizon doesn't have your IMEI, so the phone fails to authenticate/connect.
Try calling Verizon, tell them you got a new phone, and you would like to tell them the IMEI of the new one, so that it can connect to data services.
Either that or they need the number off the Verizon SIM

jdisco1 said:
I don't own any Verizon phones myself, so I could be totally wrong but:
- Verizon's SIM cards are just for data.
- Verizon uses CDMA (Your subscriber identity is in the ESN/IMEI)
- AT&T uses GSM (Your subscriber identity is in the SIM)
Both networks require you to authenticate yourself with your subscriber identity before they will give you data access.
Sounds like Verizon doesn't have your IMEI, so the phone fails to authenticate/connect.
Try calling Verizon, tell them you got a new phone, and you would like to tell them the IMEI of the new one, so that it can connect to data services.
Either that or they need the number off the Verizon SIM
Click to expand...
Click to collapse
I really do hope it's this simple. I'll try it tomorrow and let you know if it works.

I've never heard of a gsm phone working on cdma. Is it even possible?

Airtioteclint said:
I've never heard of a gsm phone working on cdma. Is it even possible?
Click to expand...
Click to collapse
Me neither, but maybe since its unlocked? Plus it has an IMEI for Verizon to use...

jdisco1 said:
Me neither, but maybe since its unlocked? Plus it has an IMEI for Verizon to use...
Click to expand...
Click to collapse
It should be able to work with CDMA. I've seen the option in some of the menu's I've been through. And the guides have all said that they can work between AT&T and Verizon/T-Mobile or vice versa.
Also, AT&T will unlock the phone for you if you go to their website and fill out the stuff. The only reason I didn't do this is because I'm still under contract and I would have to break that and pay the early termination fee.

How to use on MetroPCS network

I've read through the forums and see that it's possible to use the Verizon note 3 on tmobile network. I want to use mine on the MetroPCS network. My question was is has anyone switched theres from Verizon to metro pcs and if so what are the steps involved?
Sent from my SCH-R720 using Tapatalk 2

Answer + another question
Hey there. I'm going to try and answer your question and then ask another related question.
I recently bought a 900v from eBay with the intention of using it on MetroPCS and then in Europe after a few months when I move. I'm currently using an international Note II on MetroPCS which works fine.
To answer: In theory, as far as I know, all you need to do to get your Verizon Note 3 to work on MetroPCS is get a plan and SIM card from them (they will need to register your phone's IMEI to the SIM card since they lock individual SIM cards to individual phones). After this, go to Settings > More networks > Mobile networks and change preferred to 'global'. You will also need to input the proper network name and APN (Settings > More networks > Mobile networks > Access Point Names). From here it should work.
Ok, now my question for whoever might know something about it. Since I bought my Note 3, I went to a MetroPCS store and had them change the registration from my old phone's IMEI to the Note 3. They did that, we switched the SIM and did what I wrote above and voice and text worked, but no data. The guy working there didn't know what to do, so I decided to have him just switch it back to my Note II and I'd take it to the better resourced 'corporate' store later.
In the meanwhile, I rooted and did what I needed to flash JasmineRom 2.4.1. Went fine and everything seemed to work fine. Then I took it to the corporate store. They tested it with a tester SIM first (not locked to a particular device) but couldn't get it to connect to a network and then the same with my SIM (which had worked before at least for voice). I just get the notification: "Phone Activation - This SIM card is from an unknown source."
Does anyone know if the phone has to first be somehow Activated with Verizon before I can change it to global and use other GSM networks? If so, how would I go about doing that as I'm not on Verizon, nor have I ever been. I have a friend who uses Verizon who might be able to help me activate it if really necessary, but if there's another way, do please let me know. If this problem has nothing to do with activation, and there's something else going on, I'm all ears as well. Thanks.

Problem solved for MetroPCS connection.
Just wanted to update that my problem was solved with no more trouble than calling MetroPCS (888 8METRO8) to have them register my old MetroPCS SIM card to my new device (Verizon Note 3). I had already played around with GSM and global modes and had manually input the APN and network name prior to calling. I had also tried to activate using *228 but that didn't seem to work... not sure if that is important but it was something I had done (with the MetroPCS card before calling).
To the OP: did you get yours working?
Edit: I suppose it is also worth mentioning that I didn't have to change any settings and I'm getting 4G LTE on MetroPCS.

So to confirm, it is possible to connect the Verizon note 3 to METROPCS network and get 4G LTE SERVICE. Will I need to adjust APN settings through the phone? Do I have to use a separate program to change those settings?
I'm going today to try to set this up. Thanks for the responses.
Sent from my QMV7B using Tapatalk

Ok everyone I have a question in reguards to using a Verizon Samsung Galaxy Note 3 with Metro PCS. I've been getting the run around from Verizon and Metro. What I've done so far is got Metro PCS to type the Note 3's IMEI number in their computer to activate the phone (like they do with every phone). I put the SIM card in the Note 3, and it said something like "SIM card is from an unknown source" (it's not reading the SIM). The phone wouldn't work. No service despite them activating the Note 3 on my account. They told me to go to metro store, so I did and we tried a new SIM card and everything and it still didnt read it. I keep seeing people say we need to change the APN, but what are we specifically supposed to write in the APN box? Also, I see people saying metro has to do something with the SIM card, what exactly do they have to do? Can someone please help, and please give me the exact steps as to what I have to do to get my Note 3 activated and working with MetroPCS. I havent had a phone to use in days because of this bullcrap please help!

verizon phone on metro network
graphmatix said:
i've read through the forums and see that it's possible to use the verizon note 3 on tmobile network. I want to use mine on the metropcs network. My question was is has anyone switched theres from verizon to metro pcs and if so what are the steps involved?
Sent from my sch-r720 using tapatalk 2
Click to expand...
Click to collapse
i tried doing this today and i was told if the verizon phone was activated...it would only last about 2 weeks..

Would this work on a galaxy s5?

Cricket Samsung Galaxy s4 root

Hello I got this new phone and I want to be able to put on custom roms and what not, I somehow installed twrp recovery but it only worked once and now it just sits there at the beggining loading i assume cause the phone is not rooted which I have tried to root it and even install the binary su through twrp and it did not work, so how do I go about this thank you so much

Esin8785 said:
Hello I got this new phone and I want to be able to put on custom roms and what not, I somehow installed twrp recovery but it only worked once and now it just sits there at the beggining loading i assume cause the phone is not rooted which I have tried to root it and even install the binary su through twrp and it did not work, so how do I go about this thank you so much
Click to expand...
Click to collapse
Just flash an official firmware via odin and you´ll be alright

Sounds like a bad install of twrp it shouldn't be corrupt flash

Okay I got the phone flashed with custom recovery cwm and even installed cynogenmod on the phone which all works great, I got service last night from straight talk to find out that I cannot use this phone at all for their service for what ever reason even though their website said it would work, flashing the phone to a different service would that work on this phone or would it still be in the same boat I am in now

is your phone CDMA cricket or the new GSM?

its a gsm phone, cricket told me they are switching to cdma and this phone will no longer work with cricket at all, they also told me the phone cannot not be unlocked for other carriers, I was still hoping that it can work with straight talk, i already got the plan and sim cards but it wont take it

Umm, you have that backwards. Cricket was purchased by AT&T and is transitioning from CDMA to GSM. So your Cricket phone is more likely a CDMA model.
http://www.pcmag.com/article2/0,2817,2455001,00.asp

ok
Okay if it's the cdma phone then it can be flashed over to straight talk correct, Here is what I got, I got a samsung galaxy s4 rc970c model from cricket which uses their sim card, I do not have the old sim card from them but i do have the ones from straight talk, when I put that sim card in it, it does not recogonize it at all or askes me anything at all about it, so basically what do i need to do to get this phone to work with straight talk and i still need a number for it as well
I also have a samsung exhibit from metropcs, i would rather have the s4 work with straight talk but for now I just need service with a new number some how thank you so much for all your help
also both of these phones take sim cards so idk if that means gsm or cdma and from what I've been reading this should be a gsm phone as it takes sim card not sure if that is only for internet or not, i downloaded a app sim card reader or what ever and it says it's a cdma phone

Cricket may well be like Verizon, in requiring a SIM card for its LTE service. However, CDMA phones on the Straight Talk BYOP program do not use SIM cards and instead use an activation code. The consequences of this are that if the phone is compatible, LTE will likely not be available to you.
If you purchased a SIM thinking the Straight Talk CDMA Phone Information Page covered GSM phones as well, you're out the cost of the SIM, though you could probably sell it to someone with a GSM phone. If the phone is indeed compatible as you said, you want to buy an activation code instead.

for now all I want is to get this phone that I have working with phones calling, I can care less about the lte internet stuff I do most of everything via wifi anyways from my own network and I'm usually at home and don't need the net on the go that fast, How do I get this phone to work cause their website says it's compatible but it wont take the imie says we do not offer service in that area code and I know for a fact they do I'm in metro denver colorado they have shops everywhere

If the combination of IMEI and zip code says service isn't available, then there's no way to use the phone on Straight Talk in your area. Call them and ask why that is, but I wouldn't expect a good answer. I can only speculate why Straight Talk isn't available in the area for your phone, but I believe it to be because the phone is a Cricket phone. The BYOP program is generally geared to the major carriers. Minor carriers and MVNOs aren't accounted for.

SM-935U doesn't work woht Verizom mvno

I have a SM-935 U device and have been using on the AT&T network. I recently switched to Verizon MVNO (US Mobile). The phone doesn't get registered on the Verizon network. I bought the unlocked S7 edge from best buy thinking that it will work on all carriers. Any help will be appreciated.

The SM-935U do work on all carriers. I have a SM-935V with U firmware on it. I'm with a Verizon MVNO named Total Wireless. Sounds like the phone you go from Best Buy is stilled registered under AT&T...

Not getting registered to Verizon network
When I check the IMEI of my phone against the Verizon compatibility check using their web site, it is fully compatible. The issue is that phone is not getting registered to the Verizon network. I think Verizon is blocking it some how and the MVNO is not able to help me to resolve this.

You ever figure out a solution out to this?

silvers67 said:
When I check the IMEI of my phone against the Verizon compatibility check using their web site, it is fully compatible. The issue is that phone is not getting registered to the Verizon network. I think Verizon is blocking it some how and the MVNO is not able to help me to resolve this.
Click to expand...
Click to collapse
The LTE should work fine, but youll have to set the APN correctly, otherwise it wont get any data, for the CDMA portion youll have to submit the ESN to Verizon to add your ESN IMEI to their database.

Activate T-Mobile Samsung Galaxy S4 on Sprint networks

Hi I was wondering if anyone had tried to activate a T-Mobile S4 variant on Sprint networks . I read where one will need a valid ESn Number . I realize that Sprint uses different bands for their voice text and LTE data then T-Mobile does . Would I need to install a Sprint variant S4 rom to solve this issue with the cellular modem radio . Any help appreciated

Late reply here. You have issues that will make it very difficult for you to accomplish what you're trying to do.
1. You can't install a Sprint ROM on a T-Mobile device. Odin will check to determine whether the ROM is correct for the device, and if it isn't, will refuse to install it.
2. Installing a Sprint baseband on a T-Mobile device, if it were possible, would render the wireless capabilities of the device useless until the T-Mobile baseband were restored.
3. You'd need to convert the IMEI to an ESN. This is perhaps the easiest thing to do since the ESN is the IMEI, but ignoring the very last digit in the IMEI (the check digit).
4. Sprint is extremely reluctant to activate non-Sprint phones on their network, to the point of outright refusal in some cases.
I personally recommend switching from Sprint to T-Mobile or an MVNO using T-Mobile if you really want to use this device. Not only is the service better than Sprint, you don't have any hoops to jump through in order to get the S4 working on the network. If you insist upon using Sprint, find a different device.