📋 Quick Jump to Your Issue
eSIM installed but no internet
QR code won't scan or "already used"
SIM not provisioned / invalid SIM
Connected but very slow
"Add eSIM" option missing
Keeps disconnecting
FAQ
Most eSIM problems have a simple fix. This guide covers the 6 most common issues travelers face — with step-by-step solutions for both iPhone and Android.
eSIM installed but no internet
This is the #1 issue — almost always caused by a settings problem, not a faulty eSIM.
1 Enable Data Roaming for the eSIM line. iPhone: Settings → Cellular → eSIM → Data Roaming ON. Android: Settings → Connections → Mobile networks → eSIM → Data Roaming ON.
2 Set eSIM as Cellular Data line. iPhone: Settings → Cellular → Cellular Data → select eSIM. Android: Settings → SIM manager → Mobile data → select eSIM.
3 Toggle Airplane Mode on for 10 seconds, then off. This forces your phone to reconnect to the network.
4 Restart your phone. A full restart clears cached network settings and often resolves connection issues.
5 Check APN settings. Some carriers require specific APN settings. Check your Zyroam confirmation email for APN details. iPhone: Settings → Cellular → eSIM → Cellular Data Network. Android: Settings → Mobile networks → Access Point Names.
QR code won't scan or says "already used"
QR codes are single-use. If it says "already used," the profile was already downloaded once.
1 Check if already installed. Go to Settings → Cellular (iPhone) or Settings → SIM manager (Android). If you see the eSIM profile listed, it's already installed — just enable it.
2 Camera focus. Make sure the QR code is displayed at full brightness on another screen. Clean your camera lens. Hold steady from 6–8 inches away.
3 Try manual entry. If scanning keeps failing, use the manual activation code from your email instead. Copy the SM-DP+ address and activation code into the manual entry fields.
4 Contact support. If the QR code was genuinely used on another device or the download failed midway, contact hello@zyroam.com for a replacement QR code.
"SIM not provisioned" or "Invalid SIM" error
This means the eSIM profile didn't download completely, or the carrier hasn't activated it yet.
1 Wait 5–10 minutes. Some eSIM profiles need a few minutes to fully provision on the carrier's side. Try again after waiting.
2 Delete and re-scan. Remove the eSIM profile from your phone, then scan the QR code again on a stable WiFi connection. Some profiles allow re-download.
3 Check your WiFi. A weak or unstable WiFi connection during installation can cause incomplete downloads. Connect to a stronger WiFi network and try again.
4 Restart your phone after reinstalling the profile.
Connected but very slow speed
Could be network congestion, wrong APN, or you've hit your data plan's speed limit.
1 Check remaining data. If you've used all your high-speed data, some plans throttle speed instead of cutting off. Check your balance at zyroam.com/esim-usage.
2 Select network manually. iPhone: Settings → Cellular → eSIM → Network Selection → turn off Automatic → choose a different carrier. Android: Settings → Mobile networks → Network operators → select manually.
3 Toggle Airplane Mode. Turn it on for 10 seconds, then off. Your phone reconnects and may pick a less congested tower.
4 Check location. Indoor areas, basements, and rural locations naturally have weaker signal. Move to an open area or near a window.
"Add eSIM" option missing from Settings
Your phone either doesn't support eSIM, is carrier-locked, or has eSIM disabled in your region.
1 Verify compatibility. Check if your exact model supports eSIM — some regional variants don't. Dial *#06# — if you see an EID number, your hardware supports eSIM.
2 Check carrier lock. Contact your carrier and ask if your phone is unlocked and if eSIM is enabled on your account. Some carriers require you to explicitly request eSIM activation.
3 Update your phone. Make sure you're running the latest iOS or Android version. Some older software versions had eSIM bugs that were fixed in updates.
eSIM keeps disconnecting
Usually caused by network selection conflicts or your phone switching between SIM lines unexpectedly.
1 Disable data on your primary SIM. If both SIM lines have data enabled, your phone may keep switching between them. Turn off cellular data and data roaming on your home SIM — only the eSIM should handle data.
2 Set network selection to Automatic. Settings → Cellular/Mobile networks → eSIM → Network Selection → Automatic. Manual selection can sometimes cause your phone to lose connection when moving between towers.
3 Reset network settings. iPhone: Settings → General → Transfer or Reset → Reset → Reset Network Settings. Android: Settings → General management → Reset → Reset network settings. Warning: this erases saved WiFi passwords.
4 Disable WiFi Assist (iPhone). Settings → Cellular → scroll to bottom → WiFi Assist → OFF. This prevents your phone from automatically switching between WiFi and cellular, which can interfere with eSIM stability.
Still Not Working? FAQ
I've tried everything and my eSIM still won't connect — what now?
Contact Zyroam support at support@zyroam.com with your ICCID (found in Settings → Cellular → eSIM), your phone model, and a screenshot of your cellular settings. We can check the eSIM status from our side and issue a replacement if needed.
Can a faulty eSIM damage my phone?
No. An eSIM is a software profile — it cannot damage your phone hardware. If something goes wrong, simply delete the profile from your phone settings and you're back to normal.
Why does my eSIM work in one country but not another?
Check if your plan covers the country you're in. Single-country plans only work in that specific country. If you've crossed a border, you may need a new plan or a regional plan that covers multiple countries.
My eSIM shows "No Service" but signal bars appear briefly — what's happening?
Your phone is detecting the network but can't authenticate. This usually means data roaming is off, or the eSIM plan hasn't started its validity period yet. Enable data roaming and wait 30 seconds for the connection to establish.
Does resetting network settings delete my eSIM?
On iPhone: No — resetting network settings does NOT delete eSIM profiles. It only clears WiFi passwords, Bluetooth pairings, and VPN settings. On some Android phones: It may remove the eSIM profile — check your specific model before resetting.