A physical SIM is an object: you move it because you hold it in your hand. An eSIM, on the other hand, is a digital profile — an encrypted data package that identifies your account — written into a protected memory area of the phone called the eUICC. This profile doesn't "live" somewhere abstract: it's tied to a specific device, identified by a unique code (the EID), the moment it's installed.

Because of this, moving an eSIM from one phone to another isn't a simple "copy and paste": it's an operation that involves the provider, who must deactivate the profile on the source device and authorise a new, valid one on the destination device. It's a process closer to a change of address than to moving a file.

It means that once the eSIM profile has been successfully moved from phone A to phone B, that specific eSIM is now "used up" on phone A: if you later wanted to go back to using phone A, you can't simply reactivate the old eSIM as if nothing happened. You would need to ask the provider to reissue the profile, if this is even provided for under your plan's conditions.

In practice, the transfer should be thought of as a one-way ticket: you can move from the old device to the new one, but the reverse path isn't guaranteed and, in many cases, isn't available at all without direct intervention from support.

The limit stems from a need for security and uniqueness: the eSIM standard is designed so that a given mobile account can never be active on two different devices at the same time. If it were possible to freely duplicate or move a profile between multiple phones without any control, it would open the door to fraud, cloning and network conflicts that operators — rightly — want to avoid at the source.

That's why every transfer requires a step authorised by the provider's system: the old profile is permanently deactivated at the very same moment the new one is activated. It's a mechanism designed for the user's security, even if, let's be honest, it's very rarely communicated clearly at the point of purchase.

As soon as the transfer to the new device is completed and confirmed, the eSIM profile on the old phone is deactivated: it doesn't visually disappear straight away from the settings, but it stops working for data and voice. If you try to reactivate it manually, in most cases the provider's system will reject it, because that specific instance of the profile has already been "moved".

That's why it's always worth completing the transfer before thinking of the old phone as a "backup" for connectivity: once the eSIM has been moved, that backup role is no longer guaranteed.

Apple offers, between two recent iPhones signed into the same Apple ID, a feature called eSIM Quick Transfer, which brings the two phones close together via Bluetooth and moves the profile fairly simply, without a QR code. This feature, however, isn't guaranteed for every combination of models and isn't designed to be repeated multiple times on the same eSIM.

On Android, and when switching between different ecosystems (Android → iPhone or iPhone → Android), a direct transfer is often not available: in these cases the standard procedure requires the provider to deactivate the old profile and issue a new QR code to be scanned on the destination device. Here too, the "single transfer" principle still applies: the technical method changes, not the underlying rule.

Three mistakes come up more than any other in support requests related to switching phones: first, resetting or permanently turning off the old phone before completing the transfer to the new device, ending up with no working eSIM on either one. Second, selling, returning or trading in the old phone without first removing or transferring the eSIM. Third, assuming it's possible to "go back" to the old phone at a later point, perhaps because the new device has a problem, without knowing that the old profile has already been permanently deactivated.

All three scenarios are perfectly avoidable with a single precaution: contact support first, before taking any irreversible action on the old device.

The golden rule is as simple as it is often ignored: don't turn off, reset or sell the old phone until the eSIM on the new device is active and working, verified with a test call, a text message and a data browsing test. Only at that point can the old phone be safely restored to factory settings or handed over.

If you have any doubt about the correct procedure for your specific phone model or your plan, the right time to ask is before you start, not after something has already gone wrong.

The safest way is to contact BLIVALE support via WhatsApp or email before switching, stating the model of both the old and new phone, the active plan and the reason for the switch. This way the support team can guide you through the procedure best suited to your specific case — whether it's a direct transfer between two iPhones, a new QR code to install on an Android device, or any other combination.

Avoid proceeding "by instinct" by copying procedures found online for other operators: every provider manages their own eSIM backend with slightly different logic, and the correct procedure for your plan is the one confirmed directly by support.

If the old phone has already been reset, lost, stolen or handed over before the transfer was completed, the eSIM profile on that device is no longer reachable. In this scenario the only path is to contact the provider's support team and explain the situation precisely: what happened, when, and whether the data plan is still active or about to expire.

Depending on the conditions of the plan purchased, it may be possible to obtain a new issuance of the profile to install on the new device, but this depends on the provider's specific policies and should never be taken for granted: it's always better to prevent the problem by following the correct order of operations described above.

No: the single-transfer limit specifically concerns moving an eSIM profile that has already been installed from one eSIM device to another eSIM device. If you're instead activating an eSIM for the first time on a phone that previously used a physical SIM, this isn't a transfer but a first-time installation: the procedure is the standard one of scanning a QR code or installing via a link, without the limitations described in this guide.

The single-transfer issue only becomes relevant from the point where, already having an active and working eSIM on one device, you decide to switch phones and want to bring that same account over to the new device.

The eSIM profile transfer concerns the device it's used on, not the data plan you purchased: if the procedure is completed correctly, your remaining data and plan validity stay tied to your account and continue to work normally on the new smartphone, exactly as they were working on the previous one.

The risk of losing access to your remaining data applies exclusively to scenarios where the transfer isn't completed correctly — for example, an old phone reset too soon — not as an automatic effect of switching devices itself.

First, contact your eSIM provider's support team and share the model of both your old and new phone. Then follow the transfer procedure provided, without turning off or resetting the old device in the meantime. Once you've received confirmation that the new profile is active, check on the new phone that mobile data, calls and messages are working correctly before considering the operation complete. Only then can you safely reset, sell or put away the old smartphone.