Fixing iPhone SIM Issue: No SIM card detected iPhone 7, 6s, 6, 5s, 5, 4s, 4

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Ngày cập nhật gần nhất: 15/11/2025

Frequently Asked Questions

1.

What are common causes for iPhone not detecting SIM cards?

Common causes for iPhone SIM detection issues include improper SIM insertion, a locked device, a damaged SIM card, or software conflicts with apps and settings.
2.

How can I troubleshoot the iPhone SIM card detection issue?

To troubleshoot, first remove and reinsert the SIM card. If the issue persists, restart your device, perform a Network Reset, or reset all settings as needed.
3.

What should I do if my SIM card is damaged?

If your SIM card is damaged, such as cracked or distorted, you should replace it by contacting your service provider for a new card to ensure proper functionality.
4.

When should I consider visiting an iPhone service center for SIM issues?

If your iPhone continues to experience SIM card detection problems after troubleshooting steps, it’s advisable to visit a service center, as the issue may be hardware-related.

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