I'm asking if my resources are correct, not how to change SIM cards between devices or how to help someone keep unlimited data with a renewed contract. The concern is on the publicity and honesty side, independent of hardware or software questions.
We don't know who your resources are. You might not be asking how to change a SIM, but your question involves the use of SIM cards and alternate devices as they pertain to plans, which you base your info on in regards to FCC information. You asked is the info correct, I just basically told you, YES...a customer can keep their plan so long as they do not sign another contract which offers a subsidized phone. Changing plans changes plans. Otherwise, with the BYOD (compatible) idea, or the buy-at-full-price or buy elsewhere ideas, one does not have to change plans. You put your SIM or one that fits in the phone and you keep your plan.
.....The SIM holds the detail of your data plan No, it doesn't. It holds your phone number and access to the network.
.....how to help someone keep unlimited data with a renewed contract. You can't keep unlimited if you change plans. If you change plans you cannot go back to a plan that doesn't exist.
.....independent of hardware or software questions. A SIM is part of the hardware and your initial question involved user data on that SIM.
You want validation of already widely-known information. Without quoting and responding and pointing out the obvious, YES. IDK where this is coming from, but suffice to say, I speak the truth. Any other responses should be aimed at the link above that I posted to leadership.
Want an answer. Where is Verizon forcing you to upgrade? They said they will not allow subsidization under the old terms and conditions. It's up to you to stick to the old terms and conditions or not. You can choose to being your own device which works on the 700 spectrum. If you want the cheaper pricing that the carrier will subsidize then you willingly accept the new terms without unlimited data.
Snn5 has answered your question, which was " How accurate is this information?"
The quote is inaccurate for the reasons that Snn5 stated. I can confirm that the sim card does not hold the plan information only the phone number and ability to connect to the network.
If you renew (or get a new) contract your plan must change to a existing available plan. (bye-bye unlimited)
Answering questions I'm not asking doesn't help. I'll ignore wisdom now.
If anybody else has anything to add, I'd appreciate the help.
You asked, "How accurate is this information?" That is a question. I confirmed the information. We have answered a question, one that you asked.
I came across an official press communication from VZW in direct response to questions about the grandfathered unlimited data plan. The response was quoted, which I requote here: "The SIM holds the detail of your data plan. If you move it to another device, you will be charged for the service you use. If you have an unlimited SIM and it fits another device, you can use it and you will pay for the service plan associated with the SIM." The FCC mandate addressed states that the owner of the 4G data spectrum up for bid at the time, which VZW won, would be prohibited from forcing any consumers using that spectrum to change their data plan even if they changed devices.
How accurate is this information?
The information is inaccurate.
Different devices are eligible for different plans even though SIM cards are interchangeable between the devices.
For example, a tablet has one type of plan and a phone has another type of plan. A tablet has a $20/month line access fee on More Everything and a smartphone has a $40 line access fee. If you move a SIM card from a tablet into a phone, you will not keep the $20 line access fee for the tablet while the SIM card is in the phone. The line will move to a phone plan from a tablet plan.
While the SIM card may hold the detail of your data plan, it does not prevent the plan from changing if you move it to a device which requires a different type of plan. It also does not prevent the plan from changing if you sign a contract which also changes your plan.
The FCC mandate addressed states that the owner of the 4G data spectrum up for bid at the time, which VZW won, would be prohibited from forcing any consumers using that spectrum to change their data plan even if they changed devices.
Changing between like devices(smartphone to smartphone) would not force you to change your data plan. Changing between differing devices(smartphone to tablet) which are eligible for differing data plans WOULD.
Additionally, your statement makes no mention of factors OUTSIDE of changing the SIM card, such as signing contracts, switching type of device, etc... and therefore would not apply to those situations.