I'm on AT&T,but just bought a rooted S4 off someone with a Verizon ROM on it. Would I just need to flash a AT&T ROM for the S4 to be able to get the SIM card to work with AT&T?
Any help appreciated.
Same here. My friend gave me his S4 today and it is Verizon and running on the stock ROM. However, I am on AT&T. From what I hear this phone comes factory unlocked so you just plug in the SIM and it should be okay. Is there anything else that I need to know if I want to use this phone as my main?
3volution said:
I'm on AT&T,but just bought a rooted S4 off someone with a Verizon ROM on it. Would I just need to flash a AT&T ROM for the S4 to be able to get the SIM card to work with AT&T?
Any help appreciated.
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mpvsuperstar said:
Same here. My friend gave me his S4 today and it is Verizon and running on the stock ROM. However, I am on AT&T. From what I hear this phone comes factory unlocked so you just plug in the SIM and it should be okay. Is there anything else that I need to know if I want to use this phone as my main?
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After a brief visit with AT&T today, they installed a SIM card from their carrier into my phone, but it would not get speeds grater than EDGE at the time. 3G may have been possible, but it didn't see it right away. Also, they had to update the APN settings in the Settings -> More settings -> Mobile networks -> Access Point Names. Lastly, after searching the internet, Verizon carrier locks the GSM in the states. In other words, they make it so you can use GSM OUTSIDE the US but not allow AT&T or T-Mobile SIMS to be used in their devices. This is a carrier lock, not SIM lock, so they can get around the whole "well, our phones are sold SIM unlocked" bs. After calling a level two tech support, he told me that there is no such thing as a carrier lock or SIM lock, and he could not give me a code. The phone was able to make a voice call and send a normal text, but data sucked.
ghost0001 said:
After a brief visit with AT&T today, they installed a SIM card from their carrier into my phone, but it would not get speeds grater than EDGE at the time. 3G may have been possible, but it didn't see it right away. Also, they had to update the APN settings in the Settings -> More settings -> Mobile networks -> Access Point Names. Lastly, after searching the internet, Verizon carrier locks the GSM in the states. In other words, they make it so you can use GSM OUTSIDE the US but not allow AT&T or T-Mobile SIMS to be used in their devices. This is a carrier lock, not SIM lock, so they can get around the whole "well, our phones are sold SIM unlocked" bs. After calling a level two tech support, he told me that there is no such thing as a carrier lock or SIM lock, and he could not give me a code. The phone was able to make a voice call and send a normal text, but data sucked.
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Sorry to disagree, but my SCH-i545 works on the AT&T network with an AT&T SIM installed.
I only get Edge because that's the only band that VZ and AT&T has in common in this area. Swapping out a SIM isn't going to fix that.
What you're finding about GSM locks applies to pre-LTE phones. The LTE phones are not SIM locked, aren't carrier locked. Period.
I live in Toronto and am Fido customer. I was visiting my sister's family in Chicago over the weekend. While there, my brother-in-law gave me to use his Verizon Samsung Galaxy S4 (SCH-I545), which is a CDMA phone but also has a SIM card slot. I did some Internet search and, although the information is somewhat conflicting, most of the sources indicate that this particular CDMA phone is SIM unlocked to allow Verizon's customer traveling abroad where there is no CDMA coverage to be able to put a SIM card and use roaming. Or at least that's how I understood it.
Anyway, I put my Fido SIM card (luckily, in the same micro SIM format that the SCH-I545 required) and after changing the Setting > More networks > Mobile networks > Network mode to GSM/UMTS (the other two options being Global and LTE/CDMA), it connected just fine. It showed AT&T on the main screen (probably Fido's roaming partner in the US?). On the top bar it showed full bars connection indicator, with the letter "H" next to it. While in Chicago, I had my roaming data disabled so can't say if data worked, I also didn't really use the phone to talk (didn't have to), but I did receive a couple of texts from friends from Toronto. I also called my sister once (who is on T-Mobile). She didn't pick up, but later she saw a missed call from my Fido number. So I assume if she had picked up, we would have been able to talk. In other words, in Chicago my Canadian Fido SIM card seemed to have worked on this Verizon S4 through AT&T roaming.
Knowing that, I took the phone with me in Toronto. Here though it does NOT work with the same Fido SIM card. Shows empty triangle and no connection. It doesn't matter which of the tree options I choose under Network mode. If I manually search for available networks, it shows CAN Rogers Wireless, Bell and Telus. Since Fido is actually owned by Rogers and uses Rogers' towers, I select Rogers, but after sitting 5 minutes at "Registering on CAN Rogers Wireless", it says that the network was not available and it couldn't connect. I tried rebooting, wiping - no difference.
Can someone help me with making this phone work with Fido in Canada? Or may be educate me why it worked in Chicago and not here?
Update on this: I spent some time browsing the forum and now I have the phone rooted using Towelroot, also SafeStrap 3.72 and SuperSU 1.94 installed. SELinux is set to "Permissive". I have Odin 3.10 working fine and can easily go back and forth between MK2, NC2 and NC5, wipe or no-wipe . I was able to flash two other custom ROMS - DARTHSTALKER S4 VERSION X1 and Hyperdrive RLS18.1. Everything works fine, except I can't connect to my wireless provider. I tried with three SIM cards - Fido, Telus and Koodo and the result is the same for all - no connection, no bars (empty triangle), and a small sign next to it like "no entry". If I check under "About phone > Status", it says Network: Unknown; Signal 0 dBm, 99 asu, Mobile network type: Unknown; Service status: Out of service; Mobile network state: Disconnected.
Everything else appears to work just fine, inlcluding WIFI, GPS, etc.
There is one exception though - with the DarthStalker ROM I linked above I DO get some bars - floating between 1 and 4, never full. However still no service. Phone status shows the same.
I tried RegionLock Away v1.3 - no difference. Tried selecting different band using guides like this one - no difference too.
There MUST be something, possibly a very small thing, that's preventing this phone from connecting in Canada (remember, it worked in the US). But at this point I'm out of ideas. Anyone?
stfn74 said:
Update on this: I spent some time browsing the forum and now I have the phone rooted using Towelroot, also SafeStrap 3.72 and SuperSU 1.94 installed. SELinux is set to "Permissive". I have Odin 3.10 working fine and can easily go back and forth between MK2, NC2 and NC5, wipe or no-wipe . I was able to flash two other custom ROMS - DARTHSTALKER S4 VERSION X1 and Hyperdrive RLS18.1. Everything works fine, except I can't connect to my wireless provider. I tried with three SIM cards - Fido, Telus and Koodo and the result is the same for all - no connection, no bars (empty triangle), and a small sign next to it like "no entry". If I check under "About phone > Status", it says Network: Unknown; Signal 0 dBm, 99 asu, Mobile network type: Unknown; Service status: Out of service; Mobile network state: Disconnected.
Everything else appears to work just fine, inlcluding WIFI, GPS, etc.
There is one exception though - with the DarthStalker ROM I linked above I DO get some bars - floating between 1 and 4, never full. However still no service. Phone status shows the same.
I tried RegionLock Away v1.3 - no difference. Tried selecting different band using guides like this one - no difference too.
There MUST be something, possibly a very small thing, that's preventing this phone from connecting in Canada (remember, it worked in the US). But at this point I'm out of ideas. Anyone?
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Did you input APN's after inserting the SIM's?
joshm.1219 said:
Did you input APN's after inserting the SIM's?
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Yes, either manually or automatically in Darthstalker ROM. Forgot to mention that.
stfn74 said:
I live in Toronto and am Fido customer. I was visiting my sister's family in Chicago over the weekend. While there, my brother-in-law gave me to use his Verizon Samsung Galaxy S4 (SCH-I545), which is a CDMA phone but also has a SIM card slot. I did some Internet search and, although the information is somewhat conflicting, most of the sources indicate that this particular CDMA phone is SIM unlocked to allow Verizon's customer traveling abroad where there is no CDMA coverage to be able to put a SIM card and use roaming. Or at least that's how I understood it.
Anyway, I put my Fido SIM card (luckily, in the same micro SIM format that the SCH-I545 required) and after changing the Setting > More networks > Mobile networks > Network mode to GSM/UMTS (the other two options being Global and LTE/CDMA), it connected just fine. It showed AT&T on the main screen (probably Fido's roaming partner in the US?). On the top bar it showed full bars connection indicator, with the letter "H" next to it. While in Chicago, I had my roaming data disabled so can't say if data worked, I also didn't really use the phone to talk (didn't have to), but I did receive a couple of texts from friends from Toronto. I also called my sister once (who is on T-Mobile). She didn't pick up, but later she saw a missed call from my Fido number. So I assume if she had picked up, we would have been able to talk. In other words, in Chicago my Canadian Fido SIM card seemed to have worked on this Verizon S4 through AT&T roaming.
Knowing that, I took the phone with me in Toronto. Here though it does NOT work with the same Fido SIM card. Shows empty triangle and no connection. It doesn't matter which of the tree options I choose under Network mode. If I manually search for available networks, it shows CAN Rogers Wireless, Bell and Telus. Since Fido is actually owned by Rogers and uses Rogers' towers, I select Rogers, but after sitting 5 minutes at "Registering on CAN Rogers Wireless", it says that the network was not available and it couldn't connect. I tried rebooting, wiping - no difference.
Can someone help me with making this phone work with Fido in Canada? Or may be educate me why it worked in Chicago and not here?
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Hi I just saw your thread. I have exactly the same issue as yours. Have you fixed the issue? How did you do it? Thanks.
---------- Post added at 11:19 PM ---------- Previous post was at 11:09 PM ----------
wenxianren said:
Hi I just saw your thread. I have exactly the same issue as yours. Have you fixed the issue? How did you do it? Thanks.
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sorry, just saw your private message. my situation is: I bought it from the ebay, when I got it , I can use it in canada Chatr network without any problem. But the problem is one time I click the system update, then when I reboot the phone, it can't find the service just as you mentioned in the main thread. It's really strangle. Since it did work before. Maybe need to set in some place, but I never find the answer from the internet. too sad! :crying:
I still have my Vzw note 2 and can run GSM or CDMA sim cards and have test and used it.
With the Bootloader unlocked and right ROM and change the Apn Settings.
But with the note 4 the ROMs are not made for multiple carriers anymore.
AT&T will work on here and I still had to updated APN settings a little.
I removed all others to keep it form dropping call because its jumping around to other settings.
Also turned off Lte so data will stay locked in on H and H+.
I have seen it drop data connection jumping back and forth form H,H+ and Lte.
When i place my wife VZW sim card in my Tmobile note 4 LTE kicks in and I can use it.
Signal jump on but will not connect to make a call and texting will not work.
Q::: Is there anyone already running a VZW CDMA sim card on a T-mobile note 4??
Q::: Will a sim card unlock work??
Q::: What unlocking site did use??
LTE should theoretically work, but you still would not be able to call or text because most places still rely on CDMA for the talk, text, and 3g. The Tmobile phones do not have the hardware to support it. Plus any time you would not have an LTE service, you would be out of luck since there would be nothing available for the phone to fall back to. You would also run into trouble if you needed to register the phone with VZW for any type of service as the IMEI won't be in their database and they won't allow any phones that aren't there to be officially registered with them. Not to mention other problems like being unable to update PRLs and profiles.
Ok, I have have a galaxy s4 and my sis sent me her Verizon Note 4. I put my tmobile sim card in and got the this is not verizon notification. I've read some of of the forums here about changing the apn and changed each field like users here said to, changed to global network restarted and I still get no signal. There's still an inactive verizon sim, I've heard factory reset with verizon sim then change apn then put tmobile sim in but that doesn't work either. Please help, this phone is so much better tan my tiny s4 I don't want to ditch it or switch to verizon.
Hey guys, recently switched to AT&T from verizon 2 months ago. The guy at AT&T typed in the APNs and all is good besides poor reception at my house. Last night i turned off mobile data to see if my reception to send a text got better. Now I cant get mobile data to turn back on... It says add mobile service please contact customer service and gives the verizon customer service number. Any ideas on how i can get it back on? I've tried everything i can think of besides activating it on verizon again....
You might need to manually enter your APN since this is a Verizon device running on AT&T. Also if you are using an AT&T SIM you might need to input an IMEI for AT&T to get back on. These are the issues you run into trying to use CDMA/Unlock phone for one carrier (unlocked does not mean full functionality on all networks, if that was the case there would be only a single model of the V10) on a GSM carrier.
Haxcid said:
You might need to manually enter your APN since this is a Verizon device running on AT&T. Also if you are using an AT&T SIM you might need to input an IMEI for AT&T to get back on. These are the issues you run into trying to use CDMA/Unlock phone for one carrier (unlocked does not mean full functionality on all networks, if that was the case there would be only a single model of the V10) on a GSM carrier.
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I did manually enter the APN... It senses not connected to VZW and then says to call VZW customer service... might have to activate on verizon again turn on data and switch sim?
The same exact thing happened to me a month ago
Go to: Settings>Backup & Reset>Network Settings Reset
it will turn your data back on by default but you might have to put your APN info back in
hope this helps
youre amazing!