The short answer
Sometimes you can install an eSIM whose QR code is displayed on the same phone, but there is no universal image-import method. Apple documents that an iPhone on iOS 17.4 or later can touch and hold a carrier QR code shown in the default email app or browser, then choose Add eSIM. Do not generalize that path to every app, iPhone, Galaxy or Pixel. If the actual phone does not expose a supported on-device action, use another trusted screen, a provider link or app, or the exact manual details supplied with the plan. Keep the QR and activation details private, follow the delivered instructions and separate installation from the offer's validity trigger.
Start with a conditional answer, not a universal shortcut
A phone camera cannot ordinarily point at a QR code occupying that same screen. Some operating systems provide a separate on-device action, but it depends on the phone, software version, app displaying the code and provider method. Seeing a QR image is therefore not proof that the phone can import it from Photos, Downloads, email or a browser.
First identify the exact unlocked phone and delivered method. If the manufacturer documents a same-phone action and the option appears on that device, use it. Otherwise choose another provider-supported path rather than trying random QR-reader apps, publishing the image or buying another plan.
Identify what the provider actually delivered
Apple and Samsung document several device-side setup paths: QR code, provider or carrier activation, a link or app, and manual information. Google routes Pixel setup through Add SIM and the selected network provider. Those options are alternatives, not interchangeable promises from every travel provider.
Open the protected delivery instructions and note whether they include a QR code, a setup link, app workflow, SM-DP+ address, matching or activation identifier, or another provider-specific step. Use only the matching values from that delivery. Do not extract, edit or convert a QR with an unrelated website or scanner.
On supported iPhone software, use Apple's exact same-screen path
Apple currently documents one precise same-phone case: on an iPhone with iOS 17.4 or later, when the carrier QR code appears in the default email app or browser, touch and hold the QR code and tap Add eSIM. Then review the system prompt and continue only when the plan and provider match the delivery you expected.
Keep every condition attached. Apple does not describe this as a universal action for every mail app, browser, image gallery, QR reader or provider. If Add eSIM does not appear, do not repeatedly press, resave or rescan the code; use another supported delivery method or ask the provider for exact help.
On Galaxy or Pixel, verify the option visible on the actual phone
Samsung documents Galaxy setup through SIM manager using a provided QR code, a pre-assigned plan or manual activation information. Google's Pixel guidance uses Network & internet → SIMs → Add SIM → Set up an eSIM and makes support dependent on the exact phone and provider. Neither source establishes one universal same-screen image-import action across Android phones.
If the actual Galaxy, Pixel or other Android phone exposes an image-selection or provider action in its eSIM setup, follow the device and provider instructions shown there. If it only opens a camera scanner, display the protected QR on another trusted screen or use supplied manual details. An ordinary QR-reader app cannot add missing eSIM hardware or provider support.
Use another trusted screen when the phone only offers a camera scanner
Open the protected order or purchase email on a laptop, tablet or another device you control, enlarge the QR without editing it, then use the phone's built-in Add eSIM scanner. A private printout can also provide a separate surface when the provider permits that QR method. Keep enough connectivity for the profile download if the delivered instructions require it.
Do not place the QR in a public document, shared chat, support forum, cloud album or third-party decoding site. Close the protected page on a borrowed device and remove any downloaded copy when finished. Treat the QR and manual values as installation credentials rather than ordinary travel images.
Prefer exact manual, link or app details over QR improvisation
When the provider supplies matching manual values, enter them only in the phone's built-in eSIM setup fields and preserve spelling, punctuation and case. Apple documents Enter Details Manually; Samsung documents activation-code entry. A provider link, pre-assigned activation or app may be the correct route only when it was explicitly delivered for that plan.
Do not invent a manual value by decoding the QR with a public tool, and do not combine an address from one delivery with an identifier from another. If the exact values are absent or rejected, stop and contact the provider or CheapESIM support through the protected order path.
Keep first installation separate from transfer and QR reuse
This guide covers the first installation of a newly delivered profile on its intended phone. It does not prove that the QR can be scanned twice, moved to a replacement phone, restored from backup or shared with another device. Transfer and reuse depend on the provider, device pair and state of the issued profile.
If a profile is already installed or partly installed, preserve it and use the transfer or troubleshooting decision instead of treating the original QR as a fresh product. Another purchase is not a routine fix for an installation-state question.
A successful install does not define every plan's validity start
Profile installation, provider acceptance, network registration and paid-plan validity are separate events. The current offer card's activation policy remains the source of truth: validity may begin on installation, first supported-network connection, purchase or a provider-defined event. A QR accepted by the phone does not override that policy.
Read the exact card and delivered instructions before installing early. Installation-start plans require particular care because an early installation begins listed validity; first-network, purchase and provider-defined plans require their own literal interpretation rather than a universal before-travel rule.
Stop safely, or compare only before a compatible first purchase
Stop and seek exact support when Add eSIM is absent, the phone is locked or unresolved, the code is reported used or invalid, a partially installed profile exists, the manual values do not match, or the provider method is unclear. Do not erase a profile, repeatedly scan, reset the phone or purchase a replacement merely to test a theory.
If no plan has been purchased yet and the unlocked phone, provider method, itinerary and ordinary-data requirement are all resolved, compare live country, data, validity, activation and price fields. The links below show current margin-safe inventory; they do not certify same-phone installation, QR reuse, coverage or a specific activation method.
Sources
- Apple Support — Set up eSIM on iPhone: iOS 17.4 same-screen QR action, carrier links and manual details (published 10 March 2026; accessed 25 July 2026)
- Samsung UK — Use an eSIM with a Galaxy phone: QR, pre-assigned and manual setup methods (updated 22 January 2025; accessed 25 July 2026)
- Google Pixel Help — Use dual SIMs: Add SIM, Set up an eSIM and provider-dependent support (no publication date displayed; accessed 25 July 2026)
- Apple Support — If you cannot set up eSIM on iPhone: connectivity, software, plan-state and provider checks (published 23 April 2026; accessed 25 July 2026)