eSIM Troubleshooting Guide
Quick Answer: Most eSIM issues are resolved by enabling Data Roaming, setting the eSIM as your default data line, and toggling Airplane Mode on/off. If activation fails, reset network settings or request a new QR code from your provider. For slow data, check your plan's speed cap and try restarting your phone.
Fix the most common eSIM problems — from activation failures to slow data speeds. Step-by-step solutions for iPhone and Android.
Last updated: August 2026
Try these steps before anything else — they fix the majority of eSIM issues:
- 1. Toggle Airplane Mode on for 30 seconds, then off — forces a fresh network connection
- 2. Restart your phone — clears temporary network glitches
- 3. Check that Data Roaming is enabled on your eSIM (not just your home SIM)
- 4. Verify your eSIM is set as the default data line in cellular settings
Common eSIM Problems and How to Fix Them
1. eSIM Not Activating
Activation failure is usually caused by one of three things: network issues during setup, incorrect QR code scanning, or carrier lock restrictions.
Step-by-Step Fix
- Verify your phone is eSIM-compatible — iPhone XS and later, Google Pixel 3 and later, Samsung Galaxy S20 and later support eSIM.
- Ensure your phone is carrier-unlocked — if bought through a carrier on a installment plan, it may be locked. Contact your carrier to unlock.
- Use a stable WiFi connection during installation — a flaky connection can cause the profile download to fail.
- Try manual entry instead of QR scanning — your provider email includes an SM-DP+ address and activation code.
- Check Data Roaming is ON for the eSIM before you arrive in the coverage area.
Note: Most eSIM plans start counting validity from your first network connection, not from installation. If you installed the profile but have not connected yet, you have not burned any days.
2. "No Service" Error
Your eSIM profile is installed but your phone shows no signal. This is almost always a settings issue.
Step-by-Step Fix (iPhone)
- Go to Settings → Cellular
- Verify your eSIM appears in the list — if not, it may have been disabled
- Tap your eSIM and ensure Enable this Line is toggled ON
- Check that Data Roaming is enabled under Cellular Data Options
- Toggle Airplane Mode on for 30 seconds, then off
- If still no service, go to Settings → Cellular → Add Cellular Plan and re-scan your QR code
Step-by-Step Fix (Android)
- Go to Settings → Network & Internet → SIMs
- Find your eSIM in the list and ensure it is enabled
- Tap the eSIM and verify Mobile Data is toggled ON
- Check Data Roaming is enabled
- Restart your phone
- If still no service, go to Settings → Network & Internet → Mobile Network → Download SIM and re-scan
3. Data Not Working (But eSIM Shows as Active)
This is the most common post-activation complaint. Your eSIM looks fine but you cannot browse or use apps.
The Checklist
- iPhone: Settings → Cellular → Cellular Data → make sure your eSIM is selected (not your home SIM)
- Android: Settings → Network & Internet → Mobile Network → Preferred SIM for Mobile Data → select your eSIM
- Data Roaming must be enabled on the eSIM itself, not just your home SIM
- Check your data balance — if you have hit your limit, data stops working
- Verify you are in the coverage area — eSIMs only work in their specified countries/regions
4. Slow Data Speeds
Your eSIM works but网页 pages load slowly and videos buffer. Several factors can cause this.
How to Improve Speeds
- Toggle Airplane Mode — forces reconnection to a potentially less congested tower
- Move away from buildings — being indoors or in a basement degrades signal
- Check your plan — "unlimited" plans often throttle to 1-3 Mbps after a threshold (e.g., 60GB)
- Switch between 5G and 4G — in some areas, 4G is faster due to 5G congestion
- Restart your phone — clears cached network state
- Check if hotspot is enabled — some providers throttle when using tethering
5. APN Settings Issues
Incorrect Access Point Name (APN) settings can cause data to work intermittently or not at all. Most modern eSIMs configure APNs automatically, but manual entry is sometimes needed.
Finding APN Settings (Android)
Settings → Network & Internet → Mobile Network → Access Point Names
Your eSIM provider's website usually has the correct APN values listed in their setup or FAQ section. Common settings include:
- APN Name: varies by provider
- APN: varies by provider
- Username/Password: often blank or "internet"
On iPhone, APN settings are typically handled automatically. If you have issues on iPhone, the problem is usually elsewhere in your settings.
6. QR Code Not Scanning
If your eSIM QR code will not scan, the issue is usually camera permissions, screen brightness, or an expired code.
Step-by-Step Fix
- Enable Camera permissions — Go to Settings → Privacy → Camera and ensure your Camera app is allowed
- Increase screen brightness — The QR code must be clearly visible and not dimmed
- Hold phone 6-10 inches away — Too close or too far can prevent scanning
- Angle the camera slightly — Try tilting the phone 10-15 degrees if flat scanning fails
- Clean the camera lens — A dirty lens can obscure the QR code
- Request a new QR code — Most codes expire within 30-60 days; contact your provider
Manual activation alternative: If QR scanning continues to fail, most providers offer manual activation via SM-DP+ address. Check your confirmation email for the activation code and address, then go to Settings → Cellular → Add Cellular Plan → Enter Details Manually.
iPhone vs Android Troubleshooting
| Issue | iPhone Fix | Android Fix |
|---|---|---|
| eSIM not showing | Settings → Cellular → Add Cellular Plan | Settings → Network & Internet → Add SIM |
| Data not working | Settings → Cellular → Cellular Data → select eSIM | Settings → Mobile Network → Preferred SIM → eSIM |
| No service | Enable line in Cellular settings, toggle Airplane | Enable SIM in SIM manager, toggle Airplane |
| Slow speeds | Toggle Airplane, restart, check plan limits | Toggle Airplane, restart, check plan limits |
| Update APN | Usually automatic — reset network settings if needed | Settings → Mobile Network → Access Point Names |
When to Contact Your Provider
Contact your eSIM provider (not your phone carrier) for these issues:
- eSIM QR code is not working or has expired
- You have hit your data limit and need more data
- Speeds are consistently slower than expected for your plan
- The eSIM profile stops working before your plan expires
- You need a replacement QR code or manual activation codes
Contact your phone carrier only if:
- Your phone is carrier-locked and you cannot install any eSIM
- You have a hardware SIM issue unrelated to the eSIM
Provider Support: Most eSIM providers offer 24/7 live chat support. BNESIM, Airalo, Holafly, and Nomad all have chat support accessible from their websites. They can often resolve issues in minutes.
Provider-Specific Troubleshooting
BNESIM Issues
BNESIM uses Three Ireland and other local networks. Most issues are resolved by toggling Airplane Mode or restarting.
- Data not connecting: BNESIM plans require data roaming enabled. Go to Settings → Cellular → Cellular Data Options → Data Roaming → ON. The VPN feature (included with BNESIM) can sometimes interfere — try disabling it temporarily.
- Plan not activating: BNESIM plans start counting from first network connection, not installation. If you have no signal yet, wait or move to an area with coverage.
- Need more data: Log into your BNESIM account at shop.bnesim.com to purchase additional plans or top up existing ones.
Airalo Issues
Airalo is a marketplace with many local partner networks. Troubleshooting depends on which network your plan uses.
- eSIM not appearing after purchase: Check your email for the activation QR code. If it does not arrive within 5 minutes, check spam folder or log into your Airalo account.
- Data not working: Airalo plans may require you to manually select a network. Go to Settings → Cellular → Cellular Data Network → look for Network Selection and choose "Automatic" or manually select the local carrier.
- Expired plan: Airalo plans expire on a specific date regardless of usage. If your plan ran out early, you may need to purchase a new plan.
Holafly Issues
Holafly is known for unlimited data plans but has fair-use restrictions and hotspot limits.
- Slow speeds after using data: Holafly uses fair-use throttling. After 3-5GB of heavy usage in a day, speeds may drop to 1-3 Mbps. This resets at midnight UTC.
- Hotspot not working: Holafly hotspot is limited to 500MB–1GB per day depending on your plan. If you exceed this, hotspot functionality is temporarily disabled.
- Plan not activating: Holafly plans activate immediately. If you do not have signal within 30 minutes of landing, enable Airplane Mode for 10 seconds then turn it off to force a network search.
Nomad eSIM Issues
Nomad uses Three network in many countries and offers flexible data packages.
- Data not connecting: Ensure Data Roaming is enabled. Nomad plans should automatically connect, but on some devices you may need to manually select "Nomad" as the carrier.
- Top-up not applying: After purchasing additional data, wait 5 minutes and toggle Airplane Mode on/off to refresh the connection.
- Tethering issues: Nomad generally allows full tethering, but some devices may show "no internet" when connected. Try restarting your phone or the connected device.
FAQ
Why is my eSIM not activating?
The most common cause is not having data roaming enabled on your eSIM. Go to Settings → Cellular (or Network & Internet) and ensure Data Roaming is turned ON for your eSIM. Also verify your device is in the coverage area and you have a stable internet connection during setup.
Why is my eSIM showing "No Service"?
Check that your eSIM is enabled in your SIM settings. On iPhone: Settings → Cellular → ensure your eSIM is turned on. On Android: Settings → Network & Internet → SIMs → ensure the eSIM is enabled. If it still shows no service, try toggling Airplane Mode on for 30 seconds and then off.
Why is my eSIM data not working even though it shows as active?
First, make sure the eSIM is set as your data line (not your home SIM). On iPhone: Settings → Cellular → Cellular Data → select your eSIM. On Android: Settings → Network & Internet → Mobile Network → Preferred SIM → select your eSIM. Also verify Data Roaming is enabled on the eSIM itself.
How do I fix slow data speeds on my eSIM?
Slow speeds are usually caused by network congestion, being at the edge of coverage, or throttling from your provider. Try toggling Airplane Mode on and off to reconnect to a better tower. If speeds remain slow, check if your plan has a speed cap (many "unlimited" plans throttle after certain thresholds). Restarting your phone can also help.
Should I contact my eSIM provider or my phone carrier for support?
Contact your eSIM provider first for most issues — they control the eSIM profile and can troubleshoot activation, data, and speed issues. Contact your phone carrier only if you suspect your device is locked to their network or have hardware-related SIM issues.
How do I find and update APN settings for my eSIM?
On iPhone, APNs are usually automatic. On Android: go to Settings → Network & Internet → Mobile Network → Access Point Names. If your provider requires manual APN entry, they will provide the APN name, APN, username, and password. Incorrect APN settings can cause "data not working" issues.
My eSIM was working but stopped suddenly. What should I do?
First, check if you have exceeded your data limit — many plans stop working or throttle drastically once you hit the cap. If data is still available, restart your phone. If that does not work, verify your eSIM is still enabled and not accidentally turned off. Try toggling the eSIM off and back on in your SIM settings.
Can I use my eSIM as a mobile hotspot?
It depends on your provider and plan. Most providers allow tethering, but some restrict it or limit speeds. Holafly typically allows 500MB–1GB per day on hotspot. BNESIM and Nomad generally allow full tethering. Check your plan details or ask your provider before relying on hotspot functionality.
eSIM vs Local SIM: Is It Worth the Cost?
One of the most common questions before a trip: is it cheaper to buy a local SIM card at the airport or use a travel eSIM? The answer depends on your destination, trip length, and how much data you need.
| Destination | eSIM (10GB) | Local SIM (10GB) | Winner |
|---|---|---|---|
| Japan | $16 (Airalo) | $20–30 (airport kiosk) | eSIM |
| Thailand | $15 (Airalo) | $8–15 (7-Eleven/AIS) | Tie |
| France / EU | $23 (Airalo 20GB) | $30–50 (airport kiosk) | eSIM |
| USA | $16 (Airalo) | $30–60 (T-Mobile/AT&T prepaid) | eSIM |
| Indonesia (Bali) | $12–18 | $3–8 (Telkomsel local) | Local SIM |
| India | $15–25 | $3–8 (Jio/Airtel) | Local SIM |
Prices are approximate and vary by provider and data amount. Local SIM prices require finding a store, ID verification (in some countries), and physical SIM insertion.
Choose eSIM when:
- ✓ You want to set up before landing
- ✓ You're visiting multiple countries
- ✓ Your destination has no physical SIM tray (iPhone 14+ US models)
- ✓ You're making a short trip (3–7 days)
- ✓ Local SIM shops are inconvenient to find
Choose local SIM when:
- ✓ You need a local phone number
- ✓ You're staying 4+ weeks in one country
- ✓ Local SIM is significantly cheaper (India, Indonesia)
- ✓ You need very high data (50GB+) at low cost
- ✓ Your phone doesn't support eSIM
Find the Right eSIM for Your Trip
Now that you know how to troubleshoot eSIM issues, find the best plan for your destination. We compare plans from Apple-approved providers across 200+ countries.
Having Issues in a Specific Country?
Each country has specific coverage considerations. Check our country guides for local network details and provider-specific tips.
Want to Know How Much Data You Need?
Use our data calculator to estimate your data usage based on your typical activities like streaming, social media, and navigation.
Calculate Your Data NeedseSIM Compatible Phones?
Not sure if your phone supports eSIM? Check our compatibility guide for a full list of eSIM-enabled devices.
See Compatible Phones →