An eSIM solves mobile data for a trip in a few minutes, but most "it doesn't work" complaints trace back to the order of operations, not the plan: the profile gets installed at the last minute without Wi-Fi, data is switched on while still at home and part of the validity burns for nothing, or people forget a profile carries no voice and no incoming SMS — data only. Here is the process step by step, from checking the device to the moment traffic flows through the plan you bought.
What to prepare before buying
Three things are worth checking in advance. First, that the device physically supports eSIM: true for almost every recent flagship smartphone, but some models sold for specific regional markets ship without it — how to confirm this without knowing the exact model is covered in which devices support eSIM. Second, a stable Wi-Fi connection: the profile downloads as a configuration file, and installation won't start without a network. Third, device charge and enough account balance to cover the plan — payment is deducted immediately at purchase.
Getting the profile after purchase
Once payment goes through, the order appears in the "My eSIMs" section of your account with a preparation status; issuing takes seconds to a couple of minutes. When the status switches to "Ready", the order card reveals a QR code and a text activation code — both point to the same profile, use whichever is convenient. The QR code is easiest to scan from a second device, the text code helps when a camera isn't available. Order history stays visible in your account, so a paid but not-yet-installed profile is never lost.
Installing the profile in mobile network settings
The profile is added through the device's mobile network settings — the option for adding a new data plan or eSIM. From there: scan the QR code from settings, or enter the activation code manually if scanning isn't available. The device downloads and installs the profile while showing progress — don't close settings or turn off Wi-Fi, or the download interrupts and restarts from scratch. Installation usually takes one to two minutes, longer on a weak connection. If it sticks on "Installing" past ten minutes, restarting the device before retrying usually helps; if not, contact support with the order number.
Turning on data and roaming
An installed profile isn't active for data by default — switch it on separately as the data line. In mobile network settings, select the new profile and turn on cellular data for it; leave the voice line and SMS alone — the plan is data-only, calls and incoming SMS stay on the existing SIM. If the plan covers a region rather than one country and the route crosses borders within it, turn on data roaming for that specific profile in its own settings — otherwise connectivity drops on a network change even though the plan formally covers the area.
Which line to set as default, and verifying traffic
With two active lines, leave the home SIM as default for calls and SMS and set the new profile as default for mobile data — same settings, the option for choosing which SIM handles data. The check is simple: turn off Wi-Fi and open a page in a browser — if it loads, the internet went through the cellular network. Then confirm it's the right profile: the status bar or mobile network section names the line currently carrying data and the network operator, which should match the destination country, not home.
Why install at home and switch on after landing
Two clocks matter here. The first is the 180-day window from purchase within which the profile must be activated, or it expires unused. The second is the plan's own validity period, which starts not at installation but at the first real connection to the destination network. So install the profile ahead of time at home over stable Wi-Fi — that removes the hassle of hunting for a network at an unfamiliar airport — but leave the data toggle off until landing. An early test connection burns days or gigabytes before the trip even starts, and once issued, a profile is neither refunded nor transferred — it can't be replaced.
Frequently Asked Questions
Can I install the profile without Wi-Fi, over the home SIM's data instead?
Technically yes, but the flow is built around Wi-Fi, and doing it on roaming costs more than the plan itself. Simpler to connect to any available Wi-Fi once.
What if there's no signal after installation?
First check that data is on for the profile and, for a regional plan, that roaming is enabled within it. If there's still no signal, the device may be locked to a single carrier — a third-party profile then won't activate, and the only fix is removing the lock through the device's original seller.
Can an already-installed profile be moved to another device?
No: a profile is tied to one device and is non-refundable and non-transferable from the moment it's issued. A second device needs its own plan.
The catalogue of eSIM plans by country and region, paid from your account balance, is in the eSIM section of turbon.rent.