Managed Device association when trialing a new iPhone

You will need to ensure that when (if) you transfer back to your old iPhone, from the iPhone Duo, that the old iPhone has the same or newer version of iOS - as, otherwise, the transfer process will fail. Similarly, if restoring an iCloud or iTunes backup, the backup can only be restored to a device that has the same or newer version of iOS that created (or last updated) the backup being restored. If you keep both devices updated to the same version of iOS, you shouldn't encounter any difficulties with transfer or restore from a backup.

Some Apple services will not allow you to change the signed-in Apple Account more than once in a 30-day period. If both iPhones using the same Apple Account for these services, you should not encounter any difficulties.

Thank you both - LotusPilot and lobsterghost1 - for your helpful comments and for allaying my fears regarding Managed Devices and Apple Accounts.

I have read that the Duo will most likely be launched with its own revised iOS (27.1) but had not appreciated the significance with regard to the trial I am intending so your warning is very, very timely, thank you.

In view of your comments, it seems best for me not to set up the Duo by transferring the contents of my existing phone (ie using the blue hologram route) but instead to set it up using the iCloud backup I create with my existing phone at the start of the process. This would enable me not to transfer my phone number to the Duo resulting in my existing phone remaining operational. The disadvantage is not to have a complete trial of the Duo as I won’t be using its 5G communication abilities (ie phone and sms). If, however, I were to transfer my phone number to the Duo to benefit from a complete trial then I might have a problem reinstalling my phone number on my current phone - due to the iOS disparity - should I decide to keep my current phone and return the Duo. Of course, my service provider would help I’m sure but I’d rather stay independent for now.

Thanks again.

Assuming you are in the USA, where Apple generally provides a 14-day return window for a new iPhone purchased directly from Apple, I would take advantage of Apple’s temporary iCloud storage feature rather than immediately transferring everything permanently to the new iPhone.

Apple provides temporary iCloud storage specifically to make it easier to move your data when you purchase a new iPhone. You can create a temporary iCloud backup of your existing iPhone—even if your normal iCloud storage is insufficient—and use that backup to set up the new iPhone.

I would do the following:

1. Back up your existing iPhone to temporary iCloud storage using Apple's Get temporary iCloud storage when you buy a new iPhone option.
2. Set up the new iPhone and restore it from that temporary iCloud backup.
3. Use the new iPhone normally for several days. This gives you a proper opportunity to evaluate the display, cameras, battery life, ergonomics, performance, connectivity, and any other features that matter to you.
4. If you decide that you like the new iPhone, you can continue using it and allow your normal iCloud setup to settle in.
5. If you decide that you do not like it and want to return it within the 14-day return period, you can erase the new iPhone and return it, while your original iPhone remains intact and your data is still available.

This approach is considerably safer than immediately erasing or trading in your old iPhone. Keep the old iPhone untouched until you are completely satisfied with the new one. Think of it as keeping your old iPhone as an insurance policy during the return period.

Apple's instructions are here: Get temporary iCloud storage when you buy a new iPhone

One important point: the 14-day return policy depends on where and from whom the iPhone was purchased. The above assumes a purchase directly from Apple in the USA; carrier, retailer, or other-country policies can be different.

The phone number is irrelevant as it relates to the iOS version running on either iPhone. You can safely move your data and phone number to the Duo. Just DON'T erase your current iPhone and if you choose to go back to it, you can then move your phone number back. You may need to seek help from your carrier to move the number back.

LotusPilot wrote:

You will need to ensure that when (if) you transfer back to your old iPhone, from the iPhone Duo, that the old iPhone has the same or newer version of iOS - as, otherwise, the transfer process will fail. Similarly, if restoring an iCloud or iTunes backup, the backup can only be restored to a device that has the same or newer version of iOS that created (or last updated) the backup being restored. If you keep both devices updated to the same version of iOS, you shouldn't encounter any difficulties with transfer or restore from a backup.

Some Apple services will not allow you to change the signed-in Apple Account more than once in a 30-day period. If both iPhones using the same Apple Account for these services, you should not encounter any difficulties.

The issue I foresee is supposedly the iPhone duo will ship with iOS 27.1. And we are currrently on iOS 27.0.1. If there isn't a higher version of iOS available for their current iPhone if they want to go back, the data transfer back won't work.

Hence in accordance with your advice:

I will transfer my data etc including my phone number using the phone to phone transfer - the blue hologram - (I will likely still be on iOS 27.0.1) and then make sure I do NOT erase my phone.

If I need to revert to my original phone, I'll use my service provider/carrier unless my original phone has an iOS update in which case I will update the OS and then transfer the phone number back from the Duo to my original phone.

Thanks for your help.

You're welcome. I hope you enjoy the Duo when you get it!

Thank you.

You're welcome!

Thanks for your input SravanKrA. I live in the UK and purchase from an Apple Store. I am familiar with the return policy here.

Thanks again.

In India, and in many other parts of the world, there is generally no unconditional “return window” for an iPhone simply because you changed your mind or do not like the device. This is different from markets such as the US and UK, where many retailers offer a specified return period—often subject to their individual terms and conditions—during which a customer may return an iPhone even if there is no defect.

Therefore, before advising you on whether you can return an iPhone, it is important to know where you intend to purchase it. The return, refund, replacement, and cancellation policies can vary depending on the country, the retailer, whether you purchase directly from Apple or through an authorised reseller, and sometimes even the method of purchase.

Since you have not mentioned where you plan to buy the iPhone, it is difficult to give you a definitive answer about your right to return it merely because you do not like it. The purchase location and the seller’s applicable return policy are therefore important.