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I successfully unlocked my Samsung Galaxy S 4G. However when I insert an AT&T sim, I show full bars of signal but the screen says (No Service). I've tried two different sim cards and neither will work. They are both older sim cards but they should still work, right?
Only thing that stands out as odd is the AT&T APN isn't checked blue; it's white (unmarked?) and can't be selected. I'm using Gingerbread 2.3 and my T-Mobile card works fine. I have my network bands set to automatic.
And for the record, in order to connect to AT&T's network, I need to use the AT&T sim all the time, right? I won't be able to connect to AT&T when using the T-Mobile sim, yes?
Tmobile cam connect to AT&T only when data roaming for me if I got to arkansas... Im.at&t. But imma say to try to unlock again
Sent from my SGH-T959V using XDA App
mcbipolar said:
I successfully unlocked my Samsung Galaxy S 4G. However when I insert an AT&T sim, I show full bars of signal but the screen says (No Service). I've tried two different sim cards and neither will work. They are both older sim cards but they should still work, right?
Only thing that stands out as odd is the AT&T APN isn't checked blue; it's white (unmarked?) and can't be selected. I'm using Gingerbread 2.3 and my T-Mobile card works fine. I have my network bands set to automatic.
And for the record, in order to connect to AT&T's network, I need to use the AT&T sim all the time, right? I won't be able to connect to AT&T when using the T-Mobile sim, yes?
Click to expand...
Click to collapse
When you switch Sim cards you have to do a factory data reset. Just enter recovery and select the option to factory reset then reboot it should recognize your new Sim.
Sent from my SGH-T959V using XDA Premium App
I did a factory data reset from Settings->Privacy->Factory Data Reset and it didn't work. Still says No Service.
And I don't think I need to unlock again because when I access that one screen (I forget the code to enter) it shows all the locks as set to OFF.
Any other ideas why the AT&T SIM card won't allow my phone to connect? Is the fact that it's an old card the problem?
mcbipolar said:
I did a factory data reset from Settings->Privacy->Factory Data Reset and it didn't work. Still says No Service.
And I don't think I need to unlock again because when I access that one screen (I forget the code to enter) it shows all the locks as set to OFF.
Any other ideas why the AT&T SIM card won't allow my phone to connect? Is the fact that it's an old card the problem?
Click to expand...
Click to collapse
It could be the sim card although I really dont see how it could be. Is it a 3g sim card? If so it should still work, factory reset, input the at&t apn settings, reboot phone. That is what I would try, I have an unlocked phone as well, and once you input the unlock code, its UNLOCKED.
type in *#06# and let me know what comes up
jdubb1106 said:
type in *#06# and let me know what comes up
Click to expand...
Click to collapse
Didn't think of that, depends how it was unlocked. IMEI could be issue
mcbipolar said:
I successfully unlocked my Samsung Galaxy S 4G. However when I insert an AT&T sim, I show full bars of signal but the screen says (No Service). I've tried two different sim cards and neither will work. They are both older sim cards but they should still work, right?
Only thing that stands out as odd is the AT&T APN isn't checked blue; it's white (unmarked?) and can't be selected. I'm using Gingerbread 2.3 and my T-Mobile card works fine. I have my network bands set to automatic.
And for the record, in order to connect to AT&T's network, I need to use the AT&T sim all the time, right? I won't be able to connect to AT&T when using the T-Mobile sim, yes?
Click to expand...
Click to collapse
you would need to use your att sim card you may have a issue with the fact the sgs4g actually lacks 3g band
its hsdpa or edge or G
unless att uses the same spectrum as tmobile for hsdpa you prob will not get a signal
Thanks for the help everyone. In my newbishness, I didn't understand from the instructions on unlocking that the foreign SIM needed to be active. None of the instructions say it needs to be. That turned out to be the problem: I was using an old, inactive SIM (hence no service).
Sick as I am with T-Mobile, I just took my phone in to AT&T and switched providers yesterday.
Is there a way to use the phone without a SIM card? I don't have LTE in my area, and I keep getting the "no SIM Error" so was thinking that the SIM was useless anyways.
On the stock ROM every time I get the SIM error, or if I remove the SIM card itself, I get no data on the phone at all. When I try to turn on Mobile Data it prompts me to insert the SIM.
On other CUSTOM or JB ROMs, I don't get the SIM error prompt but I simply get no data.
On older Sprint phones, I know you can go into the DEBUG menu to see that EVDO/3G was actually being authenticated, the handshake was negotiated, then connection type/speed/tower/hand-off status, etc. Is there such an option with Verizon phones? I'm wondering if Data is completely shut off without the SIM, or if the data connection is actually established on the network but simply blocked from being used?
PS - per recommendation I have tried using the PHONE INFO app to switch the option to NV only, but am still getting no data. Voice/Text work perfectly.
black7 said:
Is there a way to use the phone without a SIM card? I don't have LTE in my area, and I keep getting the "no SIM Error" so was thinking that the SIM was useless anyways.
On the stock ROM every time I get the SIM error, or if I remove the SIM card itself, I get no data on the phone at all. When I try to turn on Mobile Data it prompts me to insert the SIM.
On other CUSTOM or JB ROMs, I don't get the SIM error prompt but I simply get no data.
On older Sprint phones, I know you can go into the DEBUG menu to see that EVDO/3G was actually being authenticated, the handshake was negotiated, then connection type/speed/tower/hand-off status, etc. Is there such an option with Verizon phones? I'm wondering if Data is completely shut off without the SIM, or if the data connection is actually established on the network but simply blocked from being used?
PS - per recommendation I have tried using the PHONE INFO app to switch the option to NV only, but am still getting no data. Voice/Text work perfectly.
Click to expand...
Click to collapse
ASFAIK, the SIM does 3g and 4g. WHY? because 3g on the gs3 is ehrdp and that also requires a handshake between 3g and lte. I believe it is like using 3g tech but with the pipeline size of lte... or thats as far as I've read into it.
xicewallx said:
ASFAIK, the SIM does 3g and 4g. WHY? because 3g on the gs3 is ehrdp and that also requires a handshake between 3g and lte. I believe it is like using 3g tech but with the pipeline size of lte... or thats as far as I've read into it.
Click to expand...
Click to collapse
Thanks for the info, xicewallx. I was afraid of that, however I've read of people flashing both Sprint and Verizon variants of the SGS3 to Boost, Straight Talk (CDMA), Verizon Pre-Paid which all I assume do not use LTE/SIM. I presume this means that the SGS3 can certainly use 3G without the need of the SIM card. I'm looking for a way to default to this on the SGS3 for us poor folk who do not have the luxury of LTE yet and have to deal with the SIM error until Verizon/Samsung fixes it.
Any help would be greatly appreciated!
I was able to get to a debug screen using the IOTHiddenMenu option (through Any Cut) but it simply stated that EVDO was in "sleep state." I wasn't able to figure out how to get it to start a connection yet.
Go to the Verizon store and get a free SIM card? Why go through all of this trouble.
Sent from my Nexus 7
TheBiles said:
Go to the Verizon store and get a free SIM card? Why go through all of this trouble.
Sent from my Nexus 7
Click to expand...
Click to collapse
Thanks for the suggestion. Issue is that the phone is having the NO SIM error randomly. Have already tried a different SIM from Verizon (friend's account) but still have that same issue.
black7 said:
Thanks for the suggestion. Issue is that the phone is having the NO SIM error randomly. Have already tried a different SIM from Verizon (friend's account) but still have that same issue.
Click to expand...
Click to collapse
So get a new phone? That one is obviously faulty. Go get a free replacement. You have to live with it for 2 years. I wouldn't want a faulty device for a week let alone 2 years.
Sent from my SCH-I535 using Tapatalk 2
Are you in a poor signal area? Only time I've received the "No Sim" error was at my parents where the signal is crap. As for using it without the sim card, doubt that's possible since the sim is used for authentication if I'm not mistaken.
hello,
if i understand correctly, the sim card in the S3 is basically the same as all the previous world phones, meaning its just RUIM card. The MEID and IMEI are on the phone, the card it comes with is just basically a storage device in simple terms. can someone who has access to another verizon active S3 sim try putting the card into their phone and checking the IMEI that the phone reports? does swapping the cards change the IMEI in other words. I do not think it will, but interested to know for sure.
i just started playing with one of these, but i feel realy confident you can get non 4G services to work without a sim in it.
cheers,
disco
disco_y2k said:
hello,
if i understand correctly, the sim card in the S3 is basically the same as all the previous world phones, meaning its just RUIM card. The MEID and IMEI are on the phone, the card it comes with is just basically a storage device in simple terms. can someone who has access to another verizon active S3 sim try putting the card into their phone and checking the IMEI that the phone reports? does swapping the cards change the IMEI in other words. I do not think it will, but interested to know for sure.
i just started playing with one of these, but i feel realy confident you can get non 4G services to work without a sim in it.
cheers,
disco
Click to expand...
Click to collapse
You have it just about backwords. The sim is the real identifier on vzw 4g devices. You can take a working authorized sim and use it to activate another 4g Verizon phone and it will activate under the phone number associated with the sim.
Sent from my SCH-I535 using xda app-developers app
thats interesting, S3 still has an MEID also doesnt it?
thanks for the info!
cheers,
disco
disco_y2k said:
thats interesting, S3 still has an MEID also doesnt it?
thanks for the info!
cheers,
disco
Click to expand...
Click to collapse
There is still an ESN /MEID that the network uses to identify the phone for the CDMA side of the network. The process is all handled by the LTE SIM on LTE phones, though.
OP: You have a broken phone. The no-SIM error is not something that goes away. Take it to a store and get a new SIM and/or order a replacement.
Sent from my Amazon Kindle Fire using Tapatalk 2
im gonna have to dig in some more i am still not convinced the card is not a ruim card. like the other sprint and verizon world fones the imea is in the fone im pretty sure, until you instroduce another networks actual gsm card. i still the card it comes with is a simple ruim that holds the login info and other data, etc, well you know what ruim is.
does anyone have a service manual or white papers on this one yet? i would love to read through them.
thanks again bro
cheers,
disco
I'm still looking for an answer to this if anyone has any suggestions. Any way to get 3G without a SIM card?
Did you ever get a new phone from Verizon? It seems like an issue with your phone, not the network.
I have been trying something similar along the way as I have been able to get rock solid data by switching to EvDo only using the Phone Info app.
I gave determined I am connecting to a US Cellular tower when I have solid data.
But while in EvDo only I cannot send or receive calls or texts.
I am looking for a way to enable calls and text while in EvDo only mode.
Not trying to highjack just thought this is somewhat related.
TheBiles said:
Did you ever get a new phone from Verizon? It seems like an issue with your phone, not the network.
Click to expand...
Click to collapse
New phone and new SIM from Verizon seems to have made the problem less apparent, but it still happens, especially when driving through areas where reception is a bit spotty. It's really become an issue as I rely on getting emails for business, especially while traveling, and I don't get notifications of new emails if I have no data service which I don't become aware of until I actually look at the phone. Missed a couple of important emails/meeting invites because of this already...
Brenardo said:
I have been trying something similar along the way as I have been able to get rock solid data by switching to EvDo only using the Phone Info app.
I gave determined I am connecting to a US Cellular tower when I have solid data.
But while in EvDo only I cannot send or receive calls or texts.
I am looking for a way to enable calls and text while in EvDo only mode.
Not trying to highjack just thought this is somewhat related.
Click to expand...
Click to collapse
That would be fantastic if you come across something that will allow voice/text/EvDO(3G)! Have you made any headway on this? Would be glad to help in any way I can also to get this working.
black7 said:
I'm still looking for an answer to this if anyone has any suggestions. Any way to get 3G without a SIM card?
Click to expand...
Click to collapse
I flashed a VZW GS3 to Sprint. 3G data is working fine w/o a SIM card. If I put a non activated VZW card, data doesn't work obviously.
The trick in getting this to work is to use QPST to configure Profile 0 and Profile 1. When flashing to Sprint or Boost, you must also load a Sprint PRL into the device using QPST.
Sent from my SPH-L710 using Xparent SkyBlue Tapatalk 2
AlpineMan said:
I flashed a VZW GS3 to Sprint. 3G data is working fine w/o a SIM card. If I put a non activated VZW card, data doesn't work obviously.
The trick in getting this to work is to use QPST to configure Profile 0 and Profile 1. When flashing to Sprint or Boost, you must also load a Sprint PRL into the device using QPST.
Sent from my SPH-L710 using Xparent SkyBlue Tapatalk 2
Click to expand...
Click to collapse
Choose nv only, cdma evdo in phone info and program nv items and flash prl.
Sent from my SCH-I535 using xda premium
jclendineng said:
Choose nv only, cdma evdo in phone info and program nv items and flash prl.
Sent from my SCH-I535 using xda premium
Click to expand...
Click to collapse
A little off subject but I how did you get it on sprint I'm trying to get mine on verizon prepaid and have it set to nv only. I must be missing somethin because my esn/meid all look right I get data but yet no calls
When I go into the settings for Mobile networks at the bottom where it says System select it says change the CDMA roaming mode. the problem is I reset the phone and it now has a ST AT&T SIM card in it. Why does it still think it is CDMA?
mobileboost said:
When I go into the settings for Mobile networks at the bottom where it says System select it says change the CDMA roaming mode. the problem is I reset the phone and it now has a ST AT&T SIM card in it. Why does it still think it is CDMA?
Click to expand...
Click to collapse
Same exact thing happened to me. When I was researching the problem I came across this thread. The phone was showing no signal and then suddenly it received a SMS message saying my phone was ready to use. I rebooted it and it's fine, full signal. To people experiencing this, I suggesting waiting for about an hour and maybe your phone will cure itself too.
To start my phone was working fine using Sprint
I decided to see how T-Mobile Service was in my area by using a T-Mobile SIM, it was awful.
So I poped my Sprint SIM back in and I thought everything was working fine. Then I noticed that my LTE data works but I cannot make calls.
When I try to make a call it will switch to 3G with 3 bars and say Searching for Service.
I have tried several factory resets w/o any resolution.
My phone is not rooted
Nexus 5, running 4.4.4 Stock..
Suggestions please
jarod73 said:
To start my phone was working fine using Sprint
I decided to see how T-Mobile Service was in my area by using a T-Mobile SIM, it was awful.
So I poped my Sprint SIM back in and I thought everything was working fine. Then I noticed that my LTE data works but I cannot make calls.
When I try to make a call it will switch to 3G with 3 bars and say Searching for Service.
I have tried several factory resets w/o any resolution.
My phone is not rooted
Nexus 5, running 4.4.4 Stock..
Suggestions please
Click to expand...
Click to collapse
*#*#4636#*#* what is that set to? If you set to 1x only, can you make a call?
I have never used another Sim, my only advice is call Sprint and see if they can issue a reprovision on your line. If they can't help you, try to RMA the device. If you flashed a stock image and still have the problem... The problem can only really be in two places, the hardware or the service provider.
Also, I'm pretty sure you checked but make sure your Sprint APN is correct and active.
MrObvious said:
*#*#4636#*#* what is that set to? If you set to 1x only, can you make a call?
Click to expand...
Click to collapse
I'm not sure what you mean.. but this is what is set under phone:
LTE/GSM/CDMA auto (PRL)
CELLInfoList Rate 2147483647
TheLastSidekick said:
I have never used another Sim, my only advice is call Sprint and see if they can issue a reprovision on your line. If they can't help you, try to RMA the device. If you flashed a stock image and still have the problem... The problem can only really be in two places, the hardware or the service provider.
Also, I'm pretty sure you checked but make sure your Sprint APN is correct and active.
Click to expand...
Click to collapse
I'm not totally positive how to check/correct the Sprint APN
I tried chatting w/ sprint w/o resolution, i've not called them yet
jarod73 said:
I'm not totally positive how to check/correct the Sprint APN
I tried chatting w/ sprint w/o resolution, i've not called them yet
Click to expand...
Click to collapse
http://buzzmobile.us/sprint-apn-settings-android-us/
TheLastSidekick said:
http://buzzmobile.us/sprint-apn-settings-android-us/
Click to expand...
Click to collapse
I do not have access to that..Access Point Names is not an option when I get to the Mobile Network Settings Screen..
The other thing that bugs me about that is when I go to http://www.mcc-mnc.com/
I see this and do not know what's the most up to date even if I did have access:
MCC MNC ISO Country Country Code Network
310 2 us United States 1 Sprint Spectrum
310 120 us United States 1 Sprint Spectrum
311 490 us United States 1 Sprint Spectrum
311 880 us United States 1 Sprint Spectrum
311 870 us United States 1 Sprint Spectrum
312 190 us United States 1 Sprint Spectrum
316 010 us United States 1 Sprint Spectrum
Don't think it goes by date maybe an area code or zip format..? For example I have 310-Tmobile and I live on the east coast of the United States. Do you also have the Google Play edition N5 or the one from Sprint? Our experiences may vary because I have a Google Play Edition N5.
TheLastSidekick said:
Don't think it goes by date maybe an area code or zip format..? For example I have 310-Tmobile and I live on the east coast of the United States. Do you also have the Google Play edition N5 or the one from Sprint? Our experiences may vary because I have a Google Play Edition N5.
Click to expand...
Click to collapse
I have the Google Play Edition, 32G
Hmm, wonder if the Sim card holds the information and when Android detects Sprint APN, maybe it disables itself? So if you can't change the APN, it's probably not wrong. Definitely contact your service provider and have them took a look at resetting the connection to your phone.
TheLastSidekick said:
Hmm, wonder if the Sim card holds the information and when Android detects Sprint APN, maybe it disables itself? So if you can't change the APN, it's probably not wrong. Definitely contact your service provider and have them took a look at resetting the connection to your phone.
Click to expand...
Click to collapse
I just left the Sprint store, they had no idea what was wrong with it... I even had to show them how to get into the service menus
if you dont mind wiping the phone completely and flashing the stock images, give that a try. it worked for my friend when he did that.
jarod73 said:
To start my phone was working fine using Sprint
I decided to see how T-Mobile Service was in my area by using a T-Mobile SIM, it was awful.
So I poped my Sprint SIM back in and I thought everything was working fine. Then I noticed that my LTE data works but I cannot make calls.
When I try to make a call it will switch to 3G with 3 bars and say Searching for Service.
I have tried several factory resets w/o any resolution.
My phone is not rooted
Nexus 5, running 4.4.4 Stock..
Suggestions please
Click to expand...
Click to collapse
with the sprint sim card in,
switch to these settings in attachments,
re-choose sprint in APN (may take a while),
after successful apn update, update profile,
reboot TWICE..
done..
j'vai said:
with the sprint sim card in,
switch to these settings in attachments,
re-choose sprint in APN (may take a while),
after successful apn update, update profile,
reboot TWICE..
done..
Click to expand...
Click to collapse
That's my current settings
jarod73 said:
That's my current settings
Click to expand...
Click to collapse
did you try?
what happened?
j'vai said:
did you try?
what happened?
Click to expand...
Click to collapse
That's my current settings... so nothing happened
jarod73 said:
That's my current settings... so nothing happened
Click to expand...
Click to collapse
"..with the sprint sim card in,
switch to these settings in attachments,
re-choose sprint in APN (may take a while),
after successful apn update,
update profile,
reboot TWICE.."
....
doing those steps afterwards, now, you can get lte still, but make no phone calls..?
just making sure..
sometimes, when I switch to my truphone sim card which uses tmobile,
these are the steps I have to perform to grab sprint back properly, the rebooting twice, & apn select (which I rarely complete) does it..
rebooting twice with my sprint sim back in usually corrects it; sometimes it's set to global & searches for truphone even when the sprint sim is in, yet another reboot fixes it..
j'vai said:
"..with the sprint sim card in,
switch to these settings in attachments,
re-choose sprint in APN (may take a while),
after successful apn update,
update profile,
reboot TWICE.."
....
doing those steps afterwards, now, you can get lte still, but make no phone calls..?
just making sure..
sometimes, when I switch to my truphone sim card which uses tmobile,
these are the steps I have to perform to grab sprint back properly, the rebooting twice, & apn select (which I rarely complete) does it..
rebooting twice with my sprint sim back in usually corrects it; sometimes it's set to global & searches for truphone even when the sprint sim is in, yet another reboot fixes it..
Click to expand...
Click to collapse
yes, ive tried that.. no success
Change *#*#4636#*#* to LTE/CDMA Auto PRL and see if it works. Try CDMA auto as well and maybe CDMA only. Another option is *#*#72786#*#* which completely wipes your data programming. That may work.
Sent from my Nexus 5 using XDA Free mobile app
MrObvious said:
Change *#*#4636#*#* to LTE/CDMA Auto PRL and see if it works. Try CDMA auto as well and maybe CDMA only. Another option is *#*#72786#*#* which completely wipes your data programming. That may work.
Sent from my Nexus 5 using XDA Free mobile app
Click to expand...
Click to collapse
This, this, and this. This is essentially a reprovision. If this doesn't work, (and again, you said you flashed the factory image, right?) I would RMA this device since we haven't even hit a year yet.
Precautions to take before RMA, flash factory image, lock bootloader, reset tamperflags. Check General for more information.
Edit : Factory reset as in just wiping the user data will surely do nothing for this problem, you're going to need to default back to a clean stock ROM and see what happens then (to clarify, I wasn't sure if you had performed a factory reinstall or a data wipe)
I flashed the crDroid ROM onto my stock g7 Power, no problems. Flashed gApps and Magisk, everything ok. I did all of this while the device was unactivated and with the SIM card not in it. Everything works fine. But when I activated the device on the Sprint network and inserted the SIM card, I get no data. I know people have said you can manually edit the APNs in the Mobile Network settings, but the problem for me is, there is no APN option in that menu. However, when I remove the SIM card, I DO see the APN settings option there, but of course the whole menu is grayed out because the SIM card is removed. Has anyone else been able to customize and root one of these phones for use on the US Sprint network? Should I use a different ROM? Any suggestions would be helpful.
Tsuroshi said:
I flashed the crDroid ROM onto my stock g7 Power, no problems. Flashed gApps and Magisk, everything ok. I did all of this while the device was unactivated and with the SIM card not in it. Everything works fine. But when I activated the device on the Sprint network and inserted the SIM card, I get no data. I know people have said you can manually edit the APNs in the Mobile Network settings, but the problem for me is, there is no APN option in that menu. However, when I remove the SIM card, I DO see the APN settings option there, but of course the whole menu is grayed out because the SIM card is removed. Has anyone else been able to customize and root one of these phones for use on the US Sprint network? Should I use a different ROM? Any suggestions would be helpful.
Click to expand...
Click to collapse
Hey there... This is just a possibility...
A while back, I put my sister's CDMA sim into a custom Rom-ed phone. Couldn't add an APN for the life of me. And then, duh , it turns out it was because the phone radio was set on LTE/UMTS (auto)... Is your radio set for LTE/CDMA?
motolio said:
Hey there... This is just a possibility...
A while back, I put my sister's CDMA sim into a custom Rom-ed phone. Couldn't add an APN for the life of me. And then, duh , it turns out it was because the phone radio was set on LTE/UMTS (auto)... Is your radio set for LTE/CDMA?
Click to expand...
Click to collapse
Turns out it was on "LTE/CDMA/UMTS auto (PRL)". I changed it to "LTE/CDMA auto (PRL)" which is what the Sprint network uses, I'm pretty sure. That did seem to change some things, but I still don't see any APN settings and I still don't have data, unfortunately.* I think this ROM is just not set up to work on the Sprint network? Maybe I'll try flashing a different one.
Tsuroshi said:
Turns out it was on "LTE/CDMA/UMTS auto (PRL)". I changed it to "LTE/CDMA auto (PRL)" which is what the Sprint network uses, I'm pretty sure. That did seem to change some things, but I still don't see any APN settings and I still don't have data, unfortunately.* I think this ROM is just not set up to work on the Sprint network? Maybe I'll try flashing a different one.
Click to expand...
Click to collapse
Here's a how to video on getting a working apn in a device. Works perfectly on my end.
Tsuroshi said:
I flashed the crDroid ROM onto my stock g7 Power, no problems. Flashed gApps and Magisk, everything ok. I did all of this while the device was unactivated and with the SIM card not in it. Everything works fine. But when I activated the device on the Sprint network and inserted the SIM card, I get no data. I know people have said you can manually edit the APNs in the Mobile Network settings, but the problem for me is, there is no APN option in that menu. However, when I remove the SIM card, I DO see the APN settings option there, but of course the whole menu is grayed out because the SIM card is removed. Has anyone else been able to customize and root one of these phones for use on the US Sprint network? Should I use a different ROM? Any suggestions would be helpful.
Click to expand...
Click to collapse
Did you ever get it going? When I install Pixel Experience + I have no apns at all. Not in system/product/etc or product/etc which is where they are supposed to be located. So I just paste apn.conf.xml in the system/product/etc and set 0644 then go to networks and internet/mobile networks/access point names and hit reset to default and data's on , reboot afterwards and it's all fine. What's your model # on your device? Also are you sure your sim card isn't damaged? When they crack sometimes it's impossible to see with the naked eye. And technically you're not on Sprint anymore you're on T-Mobile because they finally finished the deal and Tmo now owns Sprint. (Which is a really good thing imo) ;p if and when you do get your issue resolved be sure and save your apn.conf.xml and upload it to Google drive or something so you'll have it if you need it again. I noticed that the first APN xml files I linked you to I had apn.config.xml for the name and that's not correct supposed to be apn.conf.xml My bad on that. Sometimes I drink a lot of coffee. [emoji41]
Sent from my [device_name] using XDA-Developers Legacy app
Is sprint already not cdma?
motolio said:
Is sprint already not cdma?
Click to expand...
Click to collapse
No nothing has changed at this time. Sprint's still CDMA
Sent from my moto g(7) power using XDA-Developers Legacy app
flash713 said:
No nothing has changed at this time. Sprint's still CDMA
Click to expand...
Click to collapse
All cdma phones go both ways since around 2015 cdma phones don't use sim card for calling or texting if u use the data then u use sim card aka gsm.Sprint is not going to change for at least 3 years on there current phone plans as for going to gsm only do not know as most companies are fashing out cdma cause it old tec .That is what I have found out from T-Mobile web sight
roadkill42 said:
All cdma phones go both ways since around 2015 cdma phones don't use sim card for calling or texting if u use the data then u use sim card aka gsm.Sprint is not going to change for at least 3 years on there current phone plans as for going to gsm only do not know as most companies are fashing out cdma cause it old tec .That is what I have found out from T-Mobile web sight
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Please tell me more about CDMA also using GSM because they are two different technologies.. CDMA was used by USA military back in ww2 to send messages safely and GSM is what most the world uses. CDMA has always been more of a USA tech while GSM has always been pretty much what everyone else uses. They both send information in different ways. They do not work the same or together far as I know.
If you want to be more compatible with development use a GSM carrier like Metro, T-Mobile because GSM is what still rules the world far as phone tech goes. And we here in the USA only make up a small piece of the world far as development goes.