I unlocked my MyTouch 4g (Glacier) and I want to use my Verizon sim card in it but it does not detect Verizon in the network operators. How do I get verizon on there? Is it possible? I thought unlocking it would allow me to do this.
http://tinyurl.com/4zwoaoo
Verizon does not use 'SIM' cards
as 'SIM' cards are used for GSM networks and Verizon is a CDMA provider
http://tinyurl.com/4zwoaoo
I did google this extensively. The phone that I have here is on the verizon network and has a sim card. Why would I make that up?
houseonfire said:
I did google this extensively. The phone that I have here is on the verizon network and has a sim card. Why would I make that up?
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Verizon is a CDMA network. The SIM card is there because the phone you have also has a GSM radio for traveling overseas. However, just because it says "Verizon" on the SIM card doesn't mean your phone connects to Verizon when you roam. It's actually connecting to Vodafone when you're roaming in most countries. That's what the SIM card slot is for. Now if you unlocked that phone, you could use it on T-Mobile or AT&T if you set it to GSM Mode.
That Verizon phone will work in the US and Canada whether or not that SIM card is in there. It's impossible to get a GSM phone (your MyTouch 4G) to work on a CDMA network (Verizon).
Product F(RED) said:
Verizon is a CDMA network. The SIM card is there because the phone you have also has a GSM radio for traveling overseas. However, just because it says "Verizon" on the SIM card doesn't mean your phone connects to Verizon when you roam. It's actually connecting to Vodafone when you're roaming in most countries. That's what the SIM card slot is for. Now if you unlocked that phone, you could use it on T-Mobile or AT&T if you set it to GSM Mode.
That Verizon phone will work in the US and Canada whether or not that SIM card is in there. It's impossible to get a GSM phone (your MyTouch 4G) to work on a CDMA network (Verizon).
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Thank you for the real explanation and not being a jerk about it, as I did not know this.
It sucks that I cant use it but now I know.
Related
Hi,
i got a verizon thunderbolt and want to use it in germany with gsm/umts network.
Its showing all the time, "this sim card is not recognized" (emergency call only).
is there anyway to get gsm / umts radio on it?
Please help.
thanks.
Good luck with a phone that won't work correctly over there. The SIM slot IS NOT for GSM network use. It is for LTE, you CANNOT use it on a regular GSM network.
What g00s3y said. You can only use your ThunderBolt sim with other ThunderBolts or other LTE phones that will come out.
Sorry
How come Sprint doesn't use a sim for their LTE? Is the sim even necessary or is to bring global usage to the Verizon version?
Sent from my SCH-I535 using xda premium
The SIM card is used for 4g. 3g and voice is over the cdma radio. And sprints does have a SIM if I'm not mistaken it's internal tho and cannot be accessed.
The biggest problem with the "non-removeable" sim setup that Sprint uses is you can't just pop it out & stick it in another phone.
I do this all the time with my VZ sim card.
billard412 said:
The SIM card is used for 4g. 3g and voice is over the cdma radio. And sprints does have a SIM if I'm not mistaken it's internal tho and cannot be accessed.
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thats for sprint? it looks like verizon its all handled through the sim for both lte and 3g.... right?
As far as I know its just the lte that needs the SIM. Now of course the phones are made to not function w/o them but I'm pretty sure it's only the 4g that actually relies on it
Hi Guys,
I'm working on a school project to research on the possibilities of sim card-less mobile technology. I am looking at replacing the sim card with a mobile application that would be able to verify the user via a mobile application.
Understand that CDMA technology doesn't require a sim card, but it is not available in my country (Singapore). Thus would like to have a discussion here on whether sim card-less is possible for GSM handset?
As the world is going LTE/4G now, would the removal of sim card obstruct us from going forward towards the LTE/4G technology?
Appreciate your replies! Thanks a million!
woshiahhao said:
Thus would like to have a discussion here on whether sim card-less is possible for GSM handset?!
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An app could be malicious/malfunctioning and even not contain the true credentials to identify you as the true user of the contract with your service provider. Why do you think SIM cards are encrypted?
Not sure what you're trying to accomplish. To create an app to use your phone without a SIM? What's the purpose? Are you sure you're doing this for "school research"?
SecUpwN said:
An app could be malicious/malfunctioning and even not contain the true credentials to identify you as the true user of the contract with your service provider. Why do you think SIM cards are encrypted?
Not sure what you're trying to accomplish. To create an app to use your phone without a SIM? What's the purpose? Are you sure you're doing this for "school research"?
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Yeap, it's for a school project.
I've read that Verizon and Sprint phone uses CDMA and doesn't require SIM card. Is that true? How is the true user verified in that case?
woshiahhao said:
Yeap, it's for a school project.
I've read that Verizon and Sprint phone uses CDMA and doesn't require SIM card. Is that true? How is the true user verified in that case?
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Verizon and Sprint non-LTE devices do not use SIM cards.
Traditionally, CDMA devices in the US do not use SIM cards (Verizon and Sprint are CDMA, AT&T and T-Mobile are GSM).
Each phone has a built in identifier (called an ESN [Electronic Subscriber Number] or MEID [Mobile Equipment Identifier]) on top of the IMEI number that every phone in the world has. The phone is programmed on the computer to connect to a certain network (the APN and such are already filled in and usually not user-accessible on the phone itself, unlike with GSM devices).
Instead of swapping a SIM card, a user will go onto the website of the provider into their account and put in the device's ESN number. The device then provisions itself (known as activation) and is on the user's account.
However, all networks in the US, both CDMA and GSM, use LTE now. LTE is a GSM technology and therefore requires a SIM card to authenticate the device on the network. So even CDMA networks require SIM cards because their devices are LTE capable. Because of this, and because newer CDMA devices also support GSM (for traveling, since few countries use CDMA outside of the US), you can put a GSM SIM card in a CDMA/LTE device and it will work on GSM networks. Some networks, such as Sprint, try to counter this by artificially blocking out US SIM cards from other providers (so you can put in a Canadian SIM card for example and use a Sprint CDMA/LTE device on a GSM network, but the phone will not accept for example an AT&T SIM card).
The way everything is headed though is that everything (calls, text, mobile data) will be carried over LTE. Voice over LTE is called VoLTE.
I agree with @product F
Sent from my GT-I9300 using XDA app.
I currently am using my nexus 5 (unlocked from Play Store) on sprint and I will be going out of the country for a couple weeks and want to use a local SIM card when I get there. I have a couple questions.
1) what do I need to do to switch from Sprint CDMA and LTE SIM to a foreign GSM SIM?
2) once I get back in the country what do I need to do to switch from the from the foreign GSM SIM back to my Sprint CDMA and LTE SIM
Just simply swap the sims.
That's it? No changing anything in the settings or calls to sprint? Seems too good to be true. Glad I chose a Nexus!
dplcj said:
That's it? No changing anything in the settings or calls to sprint? Seems too good to be true. Glad I chose a Nexus!
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Um.... Not sure how this would work considering sprint doesnt use sim cards?
brokenbmx06 said:
Um.... Not sure how this would work considering sprint doesnt use sim cards?
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Sprint dose have a SIM card for LTE on the NEXUS 5.
Hello, It is my understanding that Verizon phones are unlocked. have an HTC One phone that I would like to switch from Verizon to ATT. When I put a new sim card in the phone, it seems the ATT network is being blocked. Any thoughts?
Mtru23 said:
Hello, It is my understanding that Verizon phones are unlocked. have an HTC One phone that I would like to switch from Verizon to ATT. When I put a new sim card in the phone, it seems the ATT network is being blocked. Any thoughts?
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Vezion is a CDMA provider which does not use sim cards (only mini sims i think for specific devices) while att is GSM which uses both mini sims and regular sims.
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Trozzul said:
Vezion is a CDMA provider which does not use sim cards (only mini sims i think for specific devices) while att is GSM which uses both mini sims and regular sims.
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Thank you for your response. The HTC One has a mini sim card. I have an AT&T mini sim card to put in the phone, but when I do so it doesn't recognize the AT&T network and the CDMA/GSM setting is blocked. There is a way to switch networks. Could someone please help me out in identifying how? Thank you for your help in advance!
Trozzul said:
Vezion is a CDMA provider which does not use sim cards (only mini sims i think for specific devices) while att is GSM which uses both mini sims and regular sims.
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Verizon LTE phones are all sold unlocked and use sims. Also every model that I can think of sold in the last couple of years has GSM bands to be sold as "world phones". I appreciate the attempt to be helpful, but spreading misinformation is the opposite of that. After some more trial and error, it was an ATT provisioning issue