crossorigin="anonymous"> My iPhone Won't Recognise My SIM Card
My iPhone Won't Recognise My SIM Card - How to Fix It?

My iPhone Won't Recognise My SIM Card - How to Fix It?

Having your iPhone fail to detect a SIM card can be a frustrating experience. You may notice a "No SIM" message in the top-left corner of your device, leaving you unable to make calls, send texts, or access mobile data. This issue is more common than you might think, and while it can be inconvenient, there are several potential solutions you can try before seeking professional help.

At Mobile Phone Screen Surgery Ltd, located at 308 Sherrard Road, Manor Park, E12 6UF, we understand how critical your mobile device is to your daily life. That’s why we’ve created this comprehensive guide to help you troubleshoot and resolve the SIM card issue. If the problem persists, our expert technicians are always ready to assist you.


Why Does My iPhone Say "No SIM"?

The "No SIM" error can occur for various reasons, including:

  • Incorrectly placed SIM card

  • Dirt or moisture in the SIM slot

  • Network carrier issues

  • Software glitches

  • Hardware damage

Follow the steps below to diagnose and fix the problem.


Step 1: How to Find and Remove Your iPhone’s SIM Tray

The SIM card is essential for connecting your iPhone to your mobile network, enabling you to make calls, access the internet, and send messages. If your iPhone displays "No SIM," the first step is to check the SIM card and its tray.

Locating the SIM Tray

The SIM tray on most iPhone models is on the right-hand side, opposite the mute and volume buttons. You’ll need a SIM ejector tool, usually included in your iPhone’s original packaging.

How to Remove the SIM Tray Safely

  1. Insert the SIM ejector tool into the small pinhole near the SIM tray.

  2. Apply gentle pressure until the tray pops out.

  3. Carefully remove the tray from your iPhone.

Checking the SIM Card

Inspect your SIM card to ensure it is free of dirt, dust, or damage. Reinsert it into the tray, ensuring it is correctly aligned, and gently push the tray back into the slot. Be cautious, as forcing the tray can damage the pins on the logic board.


Step 2: How to Fix the "No SIM" Error

If reinserting the SIM card doesn’t resolve the issue, try the following steps:

1. Turn Airplane Mode On and Off

A quick reset of your network connections can sometimes resolve the problem.

  • Swipe up or down (depending on your iPhone model) to open the Control Centre.

  • Tap the airplane icon to enable Airplane Mode.

  • Wait a few seconds and tap it again to disable Airplane Mode.

2. Test with Another SIM Card

If you have access to a spare SIM card, insert it into your iPhone.

  • If the new SIM card works, your original SIM may be faulty. Contact your network carrier to request a replacement.

  • If the problem persists with the new SIM card, the issue may lie with your iPhone.

3. Clean the SIM Card Slot

Over time, dirt and moisture can accumulate in the SIM slot, preventing proper connectivity.

  • Apply a small amount of isopropyl alcohol to a soft, bristled toothbrush.

  • Gently clean the SIM slot with the brush.

  • If you have compressed air, blow it into the slot to remove dust and debris.

4. Restart Your iPhone

A simple restart can resolve many software-related issues. To restart your iPhone:

  • Press and hold the power button until the "Slide to Power Off" option appears.

  • Slide to turn off your device.

  • After a few seconds, press and hold the power button to turn it back on.


Step 3: Perform a Factory Reset

If the steps above don’t work, a factory reset may resolve the issue. Note that this will erase all data on your iPhone, so ensure you back up your data before proceeding.

How to Factory Reset Your iPhone

  1. Open the Settings app.

  2. Go to General > Reset > Erase All Content and Settings.

  3. Confirm by entering your Apple ID and passcode.

  4. Wait for your iPhone to restore to factory settings.

After the reset, remove and reinsert your SIM card, then set up your iPhone as new. Check if the "No SIM" issue is resolved.


Step 4: Hardware Issues - Visit Our Technicians

If none of the above steps work, the problem may be hardware-related. At Mobile Phone Screen Surgery Ltd, we specialize in diagnosing and repairing iPhone hardware issues, including SIM card problems.

What We Offer

Our skilled technicians can perform a detailed diagnostics test to identify the root cause of the issue. This includes checking the SIM tray, slot, and related components.

  • Diagnostics Fee: £20

  • Turnaround Time: Up to 48 hours

Once the diagnostics are complete, we’ll provide you with a detailed quote for the repair.

Why Choose Us?

  • Experienced Technicians: Our team has years of experience handling iPhone repairs.

  • Affordable Prices: We offer competitive pricing without compromising on quality.

  • Convenient Location: Visit us at 308 Sherrard Road, Manor Park, E12 6UF.

  • Quick Service: Most repairs are completed within 48 hours.


Check Your Warranty

Before visiting us, check if your iPhone is still under warranty with Apple. If it is, Apple may cover the repair cost. Visit Apple's Warranty Page to verify your warranty status.


Book an Appointment

Don’t let a "No SIM" issue disrupt your day. Visit our store or book an appointment online to get your iPhone working again.

Click below to schedule your repair today!

Book an Appointment


At Mobile Phone Screen Surgery Ltd, we’re committed to providing top-notch repair services for all your mobile phone needs. Whether it’s a SIM card issue, screen repair, or battery replacement, we’ve got you covered. Visit us today and experience hassle-free service!