Introduction
Experiencing eSIM problems on an iPhone can be frustrating, especially when there is no network signal after an update. Many users have reported connectivity issues after upgrading to newer software versions. If you are trying to fix iPhone eSIM issues, especially on devices running iOS 18 or later, you are not alone.
This guide from Techilion explains common reasons behind eSIM no-signal problems and provides a clear, step-by-step reset method to restore network connectivity. The instructions are simple, safe, and suitable for everyday users.
Common iPhone eSIM Issues on iOS 18+
After a major iOS update, network settings may change or reset automatically. As a result, eSIM connectivity problems can occur.
Most common issues include:
- No signal or “No Service” message
- Unable to activate eSIM
- Calls not connecting
- Mobile data not working
- Network switching issues
Understanding the cause helps fix the issue more effectively.
Why iPhone eSIM Shows No Signal
Several factors can cause eSIM problems on iOS 18 and newer versions.
Possible reasons include:
- Temporary software bugs after update
- Network settings conflicts
- Carrier configuration not updated
- Corrupted eSIM profile
- Poor network coverage in the area
However, most of these issues can be resolved without visiting a service center.
Quick Checks Before Resetting eSIM
Before performing a full reset, try these quick checks first.
- Turn Airplane Mode on and off
- Restart your iPhone
- Ensure mobile data is enabled
- Check if carrier services are down
- Update iOS to the latest patch version
If the signal still does not appear, continue with the reset steps below.
How to Fix iPhone eSIM Issues Using Network Reset
Resetting network settings often resolves connectivity problems.
Step 1: Open Settings
Go to Settings on your iPhone.
Step 2: Navigate to Reset Options
Tap General > Transfer or Reset iPhone.
Step 3: Reset Network Settings
Select Reset > Reset Network Settings.
This action will:
- Remove Wi-Fi passwords
- Reset mobile settings
- Keep your data safe
After the reset, your iPhone will restart automatically.
Full eSIM Reset Guide for iOS 18+
If network reset does not work, a full eSIM reset may be required.
Step 1: Remove Existing eSIM
Go to Settings > Mobile Data
Tap the eSIM plan and choose Remove Cellular Plan
Step 2: Restart Your iPhone
Restarting clears temporary system conflicts.
Step 3: Add eSIM Again
Go to Settings > Mobile Data > Add eSIM
Use:
- QR code from your carrier, or
- Carrier app setup
Follow on-screen instructions carefully.
Check Carrier Settings Update
Carrier updates improve network compatibility.
To check:
- Go to Settings > General > About
- Wait for carrier update prompt
- Tap Update if available
Keeping carrier settings updated helps avoid future issues.
Switch Network Selection Manually
Sometimes automatic network selection causes problems.
To change this:
- Open Settings > Mobile Data
- Tap your eSIM
- Disable Automatic Network Selection
- Choose your carrier manually
This often restores signal quickly.
When to Contact Your Carrier
If the problem continues, contact your carrier support.
You should reach out if:
- eSIM activation fails repeatedly
- QR code shows invalid
- Network not available after reset
- eSIM profile is blocked or expired
Use official carrier channels only for support.
Preventing eSIM Issues in the Future
To avoid future problems, follow these best practices:
- Keep iOS updated
- Avoid installing unofficial carrier profiles
- Do not reset network settings unnecessarily
- Save your eSIM QR code securely
- Enable automatic carrier updates
These steps reduce the risk of connectivity issues.
Security and Privacy Considerations
Resetting eSIM settings does not erase personal data. However, users should remain cautious.
Important tips:
- Never share eSIM QR codes
- Use secure Wi-Fi networks
- Enable Face ID or passcode protection
- Review mobile permissions regularly
Security awareness helps protect your device and data.
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Conclusion
Trying to fix iPhone eSIM issues on iOS 18+ does not have to be complicated. In most cases, simple resets, carrier updates, or re-adding the eSIM can restore network connectivity.
By following the steps in this guide, users can resolve no-signal problems safely and confidently without risking their data.
At Techilion, we focus on providing practical, easy-to-understand tech solutions that help users stay connected without confusion.
Disclaimer
This guide is for informational purposes only. eSIM availability, reset steps, and network behavior may vary based on iPhone model, iOS version, and carrier policies.
