Uploaded July 2026 | Updated September 2026, 2 weeks ago

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Since updating to iOS 27, seeing a "No SIM" error on your iPhone 17, 16, 15, 14, 13, 12, or 11 Pro/Pro Max?

Having trouble connecting to your cellular network because your iPhone is showing issues like:

• "No Service" on mobile network error
• iPhone showing SIM Failure message
• Cellular network stuck on "Searching"
• Seeing "Invalid SIM" warning
• SIM network not connecting to your iPhone

Don't worry, this is a common issue that many users experience after a major iOS update, and in most cases, it's easy to fix. In this video, the Fix369™ team will walk you through 8 simple and effective solutions to fix the SIM not working issue, restore your cellular connection, and get your iPhone back online.

#iOS27NoSIMService

0:00 Intro: iPhone Searching For SIM After
0:14 Solution 1: Turn OFF Lockdown Mode
0:35 Solution 2: Refresh Cellular Network
1:27 Solution 3: Change Location
1:44 Solution 4: Turn ON and OFF Airplane Mode
2:25 Solution 5: Check Carrier Settings
2:50 Solution 6: Reset All Settings
3:25 Solution 7: Remove eSIM and Add Again
3:39 Solution 8: Contact Apple Service