iPhone Trust This Computer Not Showing? 9 Proven Fixes (2026)

By /

Table of Contents

iPhone Trust This Computer not showing is a frustrating issue that prevents your iPhone from connecting to a PC or Mac for syncing, backing up, or file transfers. When iPhone Trust This Computer not showing occurs, the alert asking you to trust the computer never appears on your iPhone screen, leaving your computer unable to recognize the device[reference:0]. According to Apple’s official support documentation, this issue often stems from a locked iPhone, faulty cables, USB port problems, or incorrect trust settings[reference:1][reference:2]. This guide covers every possible cause and provides clear, step-by-step fixes to resolve iPhone Trust This Computer not showing on iPhone 17, 16, 15, 14, 13, 12, 11, SE, and earlier models.

For more iPhone troubleshooting guides, visit our iPhone & iOS Troubleshooting Hub. You can also check our guide on Apple logo boot loops, our guide on black screen issues, and our guide on touch screen problems for additional help. If you are experiencing other connectivity issues, you may also find our guide on cellular data problems, our guide on Wi-Fi disconnecting, and our guide on Bluetooth issues useful.

For additional assistance, refer to Apple’s official support page and check the server status at DownDetector.

Featured Snippet: To resolve iPhone Trust This Computer not showing, start by unlocking your iPhone and keeping it on the Home Screen before connecting[reference:3]. Then use a cable that supports both data transfer and charging—many USB-C cables are charge-only[reference:4][reference:5]. If the prompt still doesn’t appear, reset Location & Privacy settings (Settings > General > Transfer or Reset iPhone > Reset > Reset Location & Privacy)[reference:6][reference:7]. For persistent issues, restart both devices, try a different USB port, or update iTunes/Finder to the latest version.

Why iPhone “Trust This Computer” Not Showing Occurs

Several factors can prevent the Trust This Computer alert from appearing. According to Apple’s troubleshooting guides and industry experts, the issue is often related to device lock state, cable problems, USB port issues, or existing trust settings.

Here are the most common reasons why iPhone Trust This Computer not showing happens:

  • iPhone Locked or on Lock Screen: The Trust This Computer alert will not appear unless your iPhone is unlocked and on the Home Screen[reference:8]. This is a privacy feature designed to prevent unauthorized access to your data[reference:9].
  • Charge-Only USB Cable: Many USB-C cables, especially third-party ones, are designed for charging only and do not support data transfer[reference:10][reference:11]. Without a data-transfer cable, the trust prompt will not appear.
  • USB Port or Hub Issues: Faulty USB ports, damaged cables, or using a USB hub can prevent the iPhone from establishing a proper connection with the computer[reference:12][reference:13].
  • Computer Already Trusted: If the computer was previously trusted, the alert will not appear again unless you reset Location & Privacy settings[reference:14]. Your device remembers trusted computers[reference:15].
  • Accidentally Tapped “Don’t Trust”: If you accidentally tapped “Don’t Trust” or the trust prompt was dismissed, the computer may be blocked. Resetting Location & Privacy settings can fix this[reference:16].
  • Outdated Software: An outdated version of iTunes, Finder, the Apple Devices app, or iOS can cause connection issues that prevent the trust prompt from appearing[reference:17][reference:18].
  • USB Restrictions Enabled: iOS includes a USB Restricted Mode that can block USB accessories when your iPhone has been locked for more than an hour[reference:19].

💡 Quick Tip: Start by unlocking your iPhone and keeping it on the Home Screen—this resolves iPhone Trust This Computer not showing for many users.

Method 1: Unlock Your iPhone and Keep It on the Home Screen

The Trust This Computer alert will not appear if your iPhone is locked[reference:20]. This is a critical privacy feature designed to prevent unauthorized access to your data[reference:21].

  1. Unlock your iPhone using Face ID, Touch ID, or your passcode.
  2. Keep your iPhone on the Home Screen—do not lock it or switch to another app[reference:22].
  3. Connect your iPhone to the computer using a USB cable while the phone is unlocked and active.
  4. Watch for the Trust This Computer prompt to appear on your iPhone screen.

✅ Expected Result: Unlocking your iPhone and keeping it on the Home Screen resolves iPhone Trust This Computer not showing caused by lock screen restrictions.

Method 2: Use a Data-Transfer USB Cable

If iPhone Trust This Computer not showing, the cable you’re using may only support charging, not data transfer[reference:23][reference:24]. According to Apple support, the cable must support both data transfer and charging[reference:25].

  1. Check if you are using the original Apple cable that came with your iPhone or a certified third-party cable.[reference:26]
  2. If using a USB-C to Lightning or USB-C to USB-C cable, ensure it supports data transfer (look for “data” in the cable specifications).
  3. Try a different cable—ideally one you know works for data transfer[reference:27][reference:28].
  4. After switching cables, unlock your iPhone and reconnect to the computer.

✅ Expected Result: Using a data-transfer cable resolves iPhone Trust This Computer not showing caused by charge-only cables.

Method 3: Try a Different USB Port or Computer

Faulty USB ports or using a USB hub can prevent the trust prompt from appearing[reference:29][reference:30]. According to multiple sources, connecting directly to the computer’s built-in USB port often resolves the issue[reference:31].

  1. Try a different USB port on your computer—preferably one directly on the motherboard or logic board[reference:32][reference:33].
  2. Avoid using USB hubs, docks, or extension cables, as they can interfere with data transfer[reference:34].
  3. If possible, try a different computer to rule out computer-specific issues[reference:35].
  4. Make sure the USB port is not loose or damaged.

✅ Expected Result: Using a different USB port or computer resolves iPhone Trust This Computer not showing caused by port issues or hub interference.

Method 4: Restart Both iPhone and Computer

A restart can clear temporary software glitches that cause iPhone Trust This Computer not showing[reference:36][reference:37]. According to Microsoft Q&A, restarting both devices and reconnecting while the iPhone is unlocked is a recommended fix[reference:38].

  1. Restart your iPhone: Press and hold the Side button and either Volume button until the slider appears, drag to power off, wait 10 seconds, then press the Side button until the Apple logo appears.
  2. Restart your computer: For Windows, click Start > Power > Restart. For Mac, click Apple menu > Restart.
  3. After both devices restart, unlock your iPhone and keep it on the Home Screen.
  4. Reconnect your iPhone to the computer.

✅ Expected Result: Restarting both devices often resolves iPhone Trust This Computer not showing caused by temporary software glitches.

Method 5: Check and Clean the Charging Port

Debris, lint, or dust in your iPhone’s charging port can prevent a proper connection, causing iPhone Trust This Computer not showing[reference:39]. According to Apple, your iPhone should chime or vibrate when connected to a computer[reference:40].

  1. Unplug the USB cable from your iPhone[reference:41].
  2. Visually inspect the charging port for lint, dust, or debris.
  3. If you see debris, gently clean the port using a soft, non-metallic brush or compressed air. Do not use metal objects like paperclips as they can damage the port[reference:42][reference:43].
  4. Reconnect the cable and check if the iPhone vibrates or makes a sound.
  5. If the iPhone does not chime or vibrate, try a different cable or computer[reference:44].

✅ Expected Result: Cleaning the charging port resolves iPhone Trust This Computer not showing caused by debris blocking the connection.

Method 6: Reset Location & Privacy Settings

If the computer was previously trusted or you accidentally tapped “Don’t Trust,” your iPhone remembers this setting[reference:45]. Resetting Location & Privacy settings will clear all trusted computers and force the alert to appear again[reference:46][reference:47]. This is one of Apple’s recommended fixes[reference:48].

⚠️ Important Warning: Resetting Location & Privacy settings will reset all location permissions for all apps and clear all trusted computers. You will need to re-allow app permissions when you open them.

  1. Open the Settings app on your iPhone.
  2. Tap General.
  3. Tap Transfer or Reset iPhone (or Reset on older iOS versions).
  4. Tap Reset.
  5. Select Reset Location & Privacy[reference:49].
  6. Enter your passcode if prompted and confirm.
  7. Your iPhone will restart. After restarting, unlock your iPhone and keep it on the Home Screen.
  8. Reconnect to your computer—the Trust This Computer alert should now appear[reference:50].

✅ Expected Result: Resetting Location & Privacy settings resolves iPhone Trust This Computer not showing caused by existing trust settings or accidental “Don’t Trust” selections.

Method 7: Update iTunes, Finder, or Apple Devices App

Outdated software can cause connection issues that prevent the trust prompt from appearing[reference:51][reference:52]. According to Apple, you should ensure your computer has the latest version of macOS, iTunes, or the Apple Devices app[reference:53].

  1. On Windows PC:
    • Open the Microsoft Store and check for updates to the Apple Devices app or iTunes.
    • If you downloaded iTunes from the Microsoft Store, ensure iTunes Mobile Device Helper is enabled as a startup item[reference:54].
  2. On Mac:
    • Update macOS: Click Apple menu > System Settings > General > Software Update.
    • If using Finder, ensure macOS is up to date[reference:55].
  3. Update iOS: Go to Settings > General > Software Update on your iPhone[reference:56].
  4. After updating, restart your computer and iPhone, then reconnect[reference:57].

✅ Expected Result: Updating iTunes, Finder, or the Apple Devices app resolves iPhone Trust This Computer not showing caused by outdated software.

Method 8: Reset Network Settings

If iPhone Trust This Computer not showing persists, resetting network settings can clear corrupted network configurations that may interfere with USB connections. According to Apple, this can help when the trust prompt won’t appear[reference:58].

⚠️ Important Warning: Resetting network settings will erase all saved Wi-Fi passwords, Bluetooth pairings, and VPN configurations. Your personal data (photos, messages, apps) will not be affected[reference:59].

  1. Open the Settings app.
  2. Tap General.
  3. Tap Transfer or Reset iPhone.
  4. Tap Reset.
  5. Select Reset Network Settings[reference:60].
  6. Enter your passcode if prompted and confirm.
  7. Your iPhone will restart. After restarting, unlock your iPhone and reconnect to your computer.

✅ Expected Result: Resetting network settings resolves iPhone Trust This Computer not showing caused by corrupted network configurations.

Method 9: Check USB Restrictions and Accessories Settings

iOS includes a USB Restricted Mode that can block USB accessories when your iPhone has been locked for more than an hour[reference:61]. If your device is disabled or showing “iPhone Unavailable,” you may not be able to tap Trust[reference:62].

  1. Check if your iPhone is disabled: If you see “iPhone Unavailable” on the screen, you must connect to a computer you have previously trusted to unlock it[reference:63].
  2. Check USB Accessories setting: Go to Settings > Face ID & Passcode (or Touch ID & Passcode) and look for USB Accessories. Ensure it is turned on if you are experiencing connection issues.
  3. If USB Accessories is off, your iPhone will block USB connections when locked for more than an hour.
  4. After adjusting the setting, unlock your iPhone and reconnect to the computer.

✅ Expected Result: Adjusting USB Accessories settings resolves iPhone Trust This Computer not showing caused by USB Restricted Mode.

Conclusion: Resolving This Trust Prompt Issue

When iPhone Trust This Computer not showing occurs, start with the simplest fixes: unlock your iPhone and keep it on the Home Screen, use a data-transfer cable, and try a different USB port. Most cases of this error resolve with these steps. If the problem persists, restart both devices, clean the charging port, or reset Location & Privacy settings. For more stubborn cases, update iTunes/Finder, reset network settings, or check USB Restrictions. By following this guide, you can resolve iPhone Trust This Computer not showing and successfully connect your iPhone to your computer.

Frequently Asked Questions

Why is my iPhone Trust This Computer not showing when I connect to my PC?

iPhone Trust This Computer not showing is usually caused by a locked iPhone, a charge-only USB cable, a faulty USB port, or existing trust settings. Start by unlocking your iPhone and keeping it on the Home Screen before connecting[reference:64].

How do I reset Location & Privacy settings on my iPhone?

Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Location & Privacy. This clears all trusted computers and forces the Trust This Computer alert to appear again[reference:65].

Can a USB cable cause iPhone Trust This Computer not showing?

Yes. Many USB-C cables are charge-only and do not support data transfer[reference:66][reference:67]. Use the original Apple cable or a certified cable that supports both data transfer and charging[reference:68].

Why does the Trust This Computer prompt appear only when I restart my PC?

This typically indicates that the USB connection is being re-established during the restart process[reference:69]. Try restarting both devices and reconnecting while the iPhone is unlocked[reference:70].

Does USB Restricted Mode affect the Trust This Computer prompt?

Yes. If USB Accessories is turned off in Settings > Face ID & Passcode, your iPhone will block USB connections when locked for more than an hour. Turn it on to resolve iPhone Trust This Computer not showing[reference:71].

How do I update iTunes on Windows to fix the trust prompt?

Open the Microsoft Store, search for Apple Devices or iTunes, and check for updates. If you downloaded iTunes from the Microsoft Store, ensure iTunes Mobile Device Helper is enabled as a startup item[reference:72].

Will a factory reset fix iPhone Trust This Computer not showing?

A factory reset can resolve iPhone Trust This Computer not showing if caused by deep software corruption, but it erases all data. Try all other methods first — especially unlocking your iPhone, using a data cable, and resetting Location & Privacy. If you must factory reset, back up your data first.

🚀 About HowToFixPro Editorial Team

Hey there! 👋 We are a team of tech geeks, system admins, and absolute troubleshooting maniacs! 💻 From annoying Windows loops and Android glitches to messy browser tantrums and networking nightmares—if it’s broken, we live to fix it. 🛠️

How do we do it? 🕵️‍♂️ We don’t just copy-paste basic stuff. We dive deep into official documentations, test things out until our screens glow, and follow the best industry practices. That way, you get 100% accurate, reliable, and straight-to-the-point blueprints that actually work. 🎯

No confusing jargon, no useless workarounds. Just pure, step-by-step guidance to save your day (and your sanity). ⚡ Let’s smash those tech barriers together! 🦾

Scroll to Top