I can only give you my experience -
What you were told is inaccurate
Sprint iPhone 5 may not work on T-Mobile at all even if unlocked
"Not all Sprint devices have an MSL code or a locking function that can be unlocked by Sprint (e.g., Apple devices cannot be unlocked to accept another domestic carrier's SIM card). On certain devices, not all functionality may be unlocked (e.g., for some smartphone devices, Sprint may be able to unlock the CDMA/voice functionality of the device but unable to unlock the GSM/UMTS/LTE portion of the device). Even if unlocked, Sprint devices will not necessarily work on another carrier's network."
They make special mention that Sprint's Apple devices will not work on another network. That is on Sprint's website itself. That is a copy and paste directly from their website - I have not altered it in any way
You are more than welcome to try:
1. Ask Sprint for the unlock code
2. Back up your iPhone and restore through iTunes - see if you get "Your device is unlocked" message
3. Then walk into a T-Mobile store and ask for a Nano SIM to trial into your iPhone 5
If you can make a call and / or they can call you on the number attached to that SIM - you are good to go - if it stops you at "Cannot recognize foreign SIM" as it did me - then you are stuck
Remember even with the Sprint "SIM" out you can still make and receive calls on your regular number since the CDMA technology is not dependent on the SIM being in there for calling.
What Sprint iPhone 5 IS unlocked for is for use OUTSIDE the US like while traveling etc.
Good luck and let us know what happens or if you have questions.
(by the way if you search Sprint Forums there is ONE report of a person that supposedly unlocked their iPhone 5 to use on T-Mobile - but the vast majority will tell you it simply cannot be done)
Thanks for the reply. I am going to take it to a T Mobile store and ask them to try on of their SIM's in it to see if it works.
The problem I have is that I don't want to leave my current Sprint plan if I can't get the iPhone to work on T Mobile. But I can't get the unlock unless I cancel Sprint service. The industry in general makes this stuff so damn hard for the consumer.
I like what I hear from Legere though!
But I can't get the unlock unless I cancel Sprint service.
Sorry Sir - that is incorrect -
Please look at that link I sent you in the prior post - you do not have to cancel your service with Sprint to unlock your phone - as long as you are out of contract you should be fine
I asked for the unlock code a month before my contract was up and they gave it to me
You have to call their international department for that - or at least that was what one had to do three months ago
Can someone PLEASE confirm that they ACTUALLY used an unlocked Sprint iPhone 5s successfully to make domestic calls (DSU unlock) on T-Mobile. I see in a lot of places that it can be done, but everyone who has tried seems to have failed.
Is it possible to use an unlocked Sprint iPhone 5s domestically in the United States?
Technically, it should be possible. The reason people have failed is likely due to the fact that their phone was not unlocked (Sprint is known for selling devices which cannot be unlocked).
I have been told that my device is not DSU-capable. What can I do?
Many devices that have been manufactured for Sprint simply are not DSU-capable. This is because, prior to the development of the voluntary commitment contained in CTIA's Consumer Code for Wireless Service ("Unlocking Commitment") carriers were not required to, and many carriers did not, develop their devices to be capable of being unlocked. Sprint strongly encourages owners of such devices to consider Sprint's Buyback Program, which may enable them to trade in their old devices to receive an in-store credit toward the purchase of a new device or to receive an account credit. For more information, visit sprint.com/buyback.
From a verified Sprint employee:
>>> It's February 2015! I wanted to take a moment to clarify the unlocking policy on Sprint devices, dispel some rumors and give some good news.
1. The CTIA agreement only applies to devices launched after February 1, 2015.
2. Devices produced before this date will not get a domestic SIM unlock (DSU), but will get normal MSL codes, which are not a SIM network unlock. This usually affords access to restricted programming menus.
3. Devices launched before this week will not get DSU, with the exception of the iPhone 5S, 5c, 6 and 6+. These devices are scheduled to get DSU after 2/19/2015.
In terms of frequencies, here are the frequencies that the Sprint iPhone 5 supports (T-Mobile frequencies are in bold).
band 1 / 2100 MHz IMT (Europe, Asia, Africa, Oceania, Brazil, India, Israel)
band 3 / 1800 MHz DCS (Europe, Asia, Africa)
band 5 / 850 MHz Cellular (Americas, Oceania, Brazil, Israel)
band 13 / 750 MHz Upper 700 (USA (Verizon))
band 25 / 1900 MHz PCS+G (USA (Sprint))
WCDMA (3G / 4G)
band 1 (I) / 2100 MHz IMT (Europe, Asia, Africa, Oceania, Brazil, India, Israel)
band 2 (II) / 1900 MHz PCS (Americas)
band 5 (V) / 850 MHz Cellular (Americas, Oceania, Brazil, Israel)
band 8 (VIII) / 900 MHz (Europe, Asia, Africa)
CDMA (2G / 3G)
800 MHz / band 27 / BC10 ESMR (Americas (Sprint))
850 MHz / band 5 / BC0 Cellular (Americas, Oceania, Brazil, Israel)
1900 MHz / band 2 / BC1 PCS (Americas)
2100 MHz / band 1 IMT (Europe, Asia, Africa, Oceania, Brazil, India, Israel)
850 MHz / band 5 Cellular (Americas, Oceania, Brazil, Israel)
900 MHz / band 8 (Europe, Asia, Africa)
1800 MHz / band 3 DCS (Europe, Asia, Africa)
1900 MHz / band 2 PCS (Americas)
So at best, you'll get band 2 on WCDMA & GSM (if you are in a refarmed area). At worst, you'll get band 2 on GSM only. Either way, your phone will only be marginally compatible with the network, as it lacks the ability to communicate bands 4 and 7.
That is definitely the most knowledgeable and comprehensive answer I've seen. Thank you very much.