A1660: The iPhone 7 A1660 is considered the global phone as it is compatible with both GSM and CDMA networks. In the US, you can get the A1660 on Sprint and Verizon, when you buy the SIM-free version, or when you buy the locked AT&T phone at BestBuy..
Considering this, will a1660 work on Verizon?
The A1660 is the GSM+CDMA model and works on pretty much any carrier, including Verizon and Sprint. The A1778 is the GSM-only version, sold as the carrier model for AT&T and T-Mobile, and won't work fully with CDMA networks.
Similarly, can iPhone 7 be used with any carrier? The iPhone 7, 8, X, XS, and XR are a bit different. There are two versions of each phone: The Verizon and Sprint variants have CDMA and GSM chips on the inside, and can be taken to any other carrier as long as the phone is unlocked. The AT&T and T-Mobile variants, however, only come with a GSM chip.
Secondly, how do I know what iPhone I have a1660?
By checking the model number on the back of the iPhone 7, you will be able to tell:
- Model A1660 and Model A1661 means they have a Qualcomm modem.
- Model A1778 and Model A1784 are equipped with an Intel modem.
How do I know if my iPhone 7 is CDMA or GSM?
Check your phone's "About" settings. If you see an MEID or an ESN category, your phone requires CDMA; if you see an IMEI category, your phone is GSM. If you see both (e.g., Verizon phones), your phone supports both CDMA and GSM, and may be either one.
Related Question Answers
Are iPhone 7 unlocked to any network?
iPhone 7 can be permanently unlocked by adding the IMEI number to its producer's database. In order to unlock iPhone 7 to work in any network, you must choose the network in which the device works. Networks that can be unlocked for iPhone 7 include: Sprint, T-Mobile, Verizon, AT&T, EE etc.Is iPhone 7 unlocked to all carriers?
Unlocking Your iPhone Before you can take your iPhone 7 to another carrier, you'll need to ensure that it is unlocked first. The unlocking process means that you are free to take the phone to another carrier. Your phone needs to be unlocked by the carrier.What kind of iPhone is model a1778?
This specific iPhone 7 -- the A1778 -- supports "FDD-LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30); TD-LTE (Bands 38, 39, 40, 41); UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz); [and] GSM/EDGE (850, 900, 1800, 1900 MHz)." It does not support CDMA networks.How do you tell if my iPhone is unlocked?
The easiest method to check if your iPhone is unlocked is by popping another SIM into your iPhone. Make sure the SIM isn't from the same carrier you are currently using. If your iPhone is unlocked, the phone will automatically detect the carrier, and you should see a signal strength in your iPhone's status bar.Will an unlocked iPhone work on Verizon?
Verizon runs on CDMA technology and is not compatible with GSM technology (T-Mobile & AT&T). Typically these phones will only operate on their own network. However, as long as your device is unlocked and has previously run on the Verizon network, your iPhone model 4, 4s, and 5 will work on the Verizon network.How do I know if my phone is unlocked?
If you're greeted with a dialog box telling you to enter a SIM unlock code, your phone is SIM locked to the carrier it was originally purchased from. If you don't see an unlock code prompt, check that it says you have service if you used a valid SIM card. If you do, your phone is probably unlocked.How can I fix my iPhone 7 screen?
Without AppleCare+, the cost for fixing screen damage (and only screen damage) is still very reasonable: $129 for an iPhone 7 screen and $149 for an iPhone 7 Plus screen. To get your iPhone 7 or 7 Plus screen fixed by Apple, you will need to take your phone into an Apple Store or send it into an Apple Repair Center.Can you jailbreak iPhone 7 Plus?
Yes, you can jailbreak iPhone 7 and iPhone 7 Plus. The jailbreak tool you need to use depends on the iOS version installed on your iPhone.What is a used iPhone 7 worth?
The iPhone 7 was officially announced in 2016 as a follow up to the previous generation iPhone 6S. When the iPhone 7 hit stores, retail pricing started at $649 for 32GB, $749 for 128GB, and $849 for the 256GB model.How much is an iPhone 6 worth?
iPhone 6 is worth $150, up from $75. iPhone 6 Plus is worth $200, up from $100. iPhone 6S is also worth $200, up from $100. iPhone 6S Plus is worth $250, up from $150.How do I know if I have a iPhone 7 or 7 plus?
There should be something that says "Model AXXXX". Match that to the list below to find out which iPhone model you own. If you cannot read the text on the back of the iPhone, launch the iOS Settings app and navigate to General > About > Model (or Model Number). Tap once on Model to reveal the model number.Does my iPhone have Intel or Qualcomm?
Scroll down and tap on Legal. From here, you'll see the model number (such as in the image below, which, for the record, is for an iPhone SE). For an iPhone X, if it reads A1865, you have a Qualcomm modem. If it's A1901, it's an Intel modem.What does the S stand for in iPhone 6s?
order by. 9. The iPhone 5s "s" apparently stands for security (they added touch ID), but the "s" in iPhone 6s is still largely debated, though some have speculated that it might be for sensitivity (as per the new 3D Touch features)Is there an iPhone 9?
There is no iPhone 9, but Apple's upcoming low-cost iPhone could be called the iPhone 9.Is my iPhone a CDMA?
If that isn't an option, you can also check on the device itself by opening Settings, tap General then “About”, and look under “Network” or “Carrier” instead, you'll then need to just figure out of the carrier is GSM (AT&T, T-Mobile) or CDMA (Sprint, Verizon).Are iPhones locked to a carrier?
No. A locked iPhone simply means the phone is associated (or "locked" in) with a specific cell phone carrier, like Verizon or AT&T. This means that only a SIM card from that carrier will work.How much does it cost to unlock an iPhone 7?
It costs $0 to unlock an iPhone 7. All you need is the correct Apple ID (with the password) and the passcode for the device. If you mean how much does it cost to circumvent Apple's security, it can't be done. Well, OK — it actually can be done, but it costs about $1 million per phone.Can I use a Verizon iPhone 7 on AT&T?
If you've got a Verizon-issued iPhone 7, the good news is that your device will work without issue on both AT&T's and Sprint's networks. It will also work on T-Mobile, but functionality may be a bit more limited since it's missing two of the carrier's LTE bands.What is an unlocked phone?
unlocked phone. (1) A cellphone that operates on any cellular carrier's network that supports the same air interface (GSM or CDMA) and frequency bands built into the device. See SIM card, SIM lock, jailbreaking and Android rooting. (2) A cellphone that is not password protected. 
