• Fastest route — your order email already has everything. Your order confirmation email shows, for each eSIM, a one-tap Install eSIM link, the QR code and the SM-DP+ / Activation codes — so you can jump straight to a method below. The email's Install eSIM button opens the same installer on esimno.com.
• Or open it from your account: sign in at esimno.com from any browser (computer, tablet or another phone — the codes are the same), open Profile > My eSIMs, find the eSIM you just bought (status "Ready to install") and tap Install (or Details > Install — both open the same installer).

• In the Quick Install pop-up, set Operating System to Android and Device Brand / Version to Samsung. eSIMno auto-detects this from your browser, but you can override it (for example, when the device you will install on is not the one you are browsing from).

The pop-up has two tabs: Easy Install (a one-tap button + a QR code on the same screen — Methods A and B) and Manual Install (the SM-DP+ Address and Activation Code to type by hand — Method C).

Which method to use depends on where you opened esimno.com (or your order email):

• On the actual Samsung you want to install on → start with Method A (Quick Install), one tap. If the deep link is blocked, fall back to Method C (Manual). Method B (QR) won't work here — a phone can't scan its own screen.
• On a different screen — a computer, tablet or another phone showing the QR → use Method B (QR Code) and scan it with the camera of the Samsung you're setting up (never another phone, or the eSIM installs on that phone).
• Prefer paper? Tap Print QR Code in the pop-up, print it at normal size, then scan it with the Samsung you're setting up whenever it suits you — same as Method B. Treat the printout like a password: anyone who scans it before you could install your eSIM on their own phone. Keep it private, don't photograph it, and discard it after installing.

All three methods finish the same way — see "Finishing the setup" right after Method C.

On the Samsung you want to install on, open the Easy Install tab and tap the large dark Install on this Android button (or the Install eSIM link in your order email). Samsung's native eSIM installer opens with the SM-DP+ Address and Activation Code pre-filled — then complete the steps in "Finishing the setup" below.

Doesn't work? Some manufacturer launchers and in-app browsers (notably WhatsApp's in-app browser) block the deep link. The Samsung deep-link install also requires One UI 5 or later on an unlocked device — see our device compatibility list for exact model coverage. If your Samsung doesn't qualify, use Method B (QR Code) or Method C (Manual) below.

On a Samsung running One UI 5 or later (most Galaxy S20 and newer models — see our device compatibility list for the exact models and regional notes), this is the simplest way to install:

• Open the Samsung Camera app on the phone you want to install on.
• Point it at the QR code shown in the eSIMno pop-up (or your order email) on the other screen. Always scan with the camera of the Samsung you're setting up — never another phone, or the eSIM installs on that phone.
• Tap the "Add new eSIM" banner, then complete the steps in "Finishing the setup" below.

Older Samsung (One UI 4 or earlier), or Camera didn't detect? Open Settings > Connections > SIM manager > Add eSIM, tap Scan QR code from Service Provider, and scan from there (see the menu-label note above for older One UI wording).

Use this if the camera won't detect the QR. Switch to the Manual Install tab — it shows copy-to-clipboard fields and a numbered step list for the device you selected:

• Tap the SM-DP+ ADDRESS row to copy it.
• Tap the ACTIVATION CODE row to copy it. (If your phone asks for one combined string, copy the FULL LPA STRING row instead.)
• Follow the numbered steps in the pop-up to paste these into your Samsung's Settings, then complete the steps in "Finishing the setup" below.

Images: SIM manager (Add eSIM) → Choose how to add your eSIM (Scan QR code) → scanner (Enter activation code) → keyboard form → "Add eSIMno eSIM?" confirmation.

However you started the install, Samsung shows a short confirmation: tap Add (or Confirm — the exact button label varies by One UI version), then wait 30–90 seconds (occasionally up to 3 minutes) for activation. Your eSIM profile is now installed.

Samsung does not ask you to label the line or pick a default line during install — you set your data and roaming preferences in SIM manager next. Continue below to switch on data and roaming.

• Go to Settings > Connections > SIM manager and turn on the toggle for the new eSIMno line. The SIM manager screen also shows three preference settings: Preferred SIM for calls, Preferred SIM for messages, and Preferred SIM for mobile data. Keep your home SIM as the preferred line for calls and messages, and set your eSIMno line as the preferred SIM for mobile data.
• Enable Data roaming for the eSIMno line. Depending on your One UI version, this toggle is in one of two places — try the per-SIM path first:
  • Newer One UI (recommended): Settings > Connections > SIM manager > tap the eSIMno line > Data roaming (per-SIM toggle).
  • Older One UI: Settings > Connections > Mobile networks > Data roaming (single global toggle).
  Either way, this does NOT trigger roaming charges on your home line.

• If your eSIMno line connected to the wrong carrier, open Settings > Connections > Mobile networks > Network operators, disable Select automatically and pick the supported network manually from your eSIMno coverage list.

Your eSIMno line should now be active and providing data. APN settings are auto-configured inside the eSIM profile — you don't need to set them manually.

If your eSIM does not work after install, try these in order:

1. Toggle Airplane mode for 10 seconds — the fastest fix for "no service" right after install. Swipe down to open Quick Settings, tap Airplane mode on, wait 10 seconds, then tap it off again.
2. Check Data roaming is ON for the eSIMno line — by far the most common cause of "installed but no internet". See section III above.
3. Confirm you are in the destination country — eSIMno eSIMs only connect to networks in the countries the plan covers, not in your home country.
4. Check the carrier the eSIM connected to — open Settings > Connections > Mobile networks > Network operators, disable Select automatically, and pick a supported carrier manually from our coverage list.
5. Still no data? Contact our support team — include your order number, your Samsung model, the One UI / Android version you are on, and the destination country. We'll diagnose the issue and walk you through any extra settings (a manual APN value is almost never needed, since APN is auto-configured inside the eSIM profile).

Looking for the fastest method when you're already on the target phone? See how the one-click Quick Install link works — it's the link sent in your order confirmation e-mail.