CODEWITHSUNDEEP
iosiphonexcode
Faisal Syed
Faisal Syed

Reputation: 4451

Xcode "Device Locked" When iPhone is unlocked

When I tried to build and run, Xcode said my device was locked. I looked at my iPhone, and it's not locked at all. How do I fix this?

Upvotes: 438

Views: 272739

Answers (30)

Ammar Mujeeb
Ammar Mujeeb

Reputation: 1311

In my case I tried all above steps but only worked when I unpair the device:

  • Xcode - Window - Devices and Simulators
  • Right click on the device in the list. Select Unpair.

enter image description here

Upvotes: 3

Hemang
Hemang

Reputation: 27050

This was happening on the Ventura (OSX 13.6) with Xcode 15.2

  1. Go to Window -> Devices & Simulators on your Xcode: For some the iPhone was under both the connected and disconnected devices list at the same time.

  2. Remove (unpair) iPhone: I removed iPhone from the connected and disconnected devices.

  3. Disconnect from the Cable

  4. On iPhone Go to Settings -> Developer -> Clear Trusted Computers

  5. Connect with the Cable

  6. Press "Trust" on alert

  7. Select iPhone as a target to build and run the app

Upvotes: 1

vomi
vomi

Reputation: 1163

What fixed the issue for me: the USB<->lightning cable had to be connected directly through the mac, not through my LG 5k display (which is also a USB hub).

Upvotes: 1

JaredH
JaredH

Reputation: 2398

What solved the issue for me was unplugging the phone, then going to Devices and Simulators:

enter image description here

Then right click on the device and select Unpair. enter image description here

Then plug your phone back in, Select "Trust this computer" and you should be golden.

Upvotes: 4

CAT
CAT

Reputation: 91

I spent hours trying to fix this issue with no luck.

BE SURE TO DISABLE ANY VPN SERVICES FROM YOUR IPHONE. Just like magic, it started working properly.

Upvotes: 8

men
men

Reputation: 131

There is no simple solution. The only real solution is to reboot the Mac, restart XCode and the iPhone. This is a shame, because it can happen at any time even in the middle of a session where everything was perfectly working, device paired and unlocked as needed. All other solutions given here or elsewhere can work here and now but fail tomorrow morning.

Upvotes: 0

wz366
wz366

Reputation: 2930

For me my iPhone 12 has a connected Apple Watch, I had to trust my computer on my Apple Watch as well.

Upvotes: 0

user139816
user139816

Reputation: 214

My problem was I was trying to install on an unsupported (new) iOS version which produced the same errors. Specifically Xcode 11.7 to iOS 14

Upvotes: 0

Starsky
Starsky

Reputation: 2028

I have a very simple solution which worked for me instantly. Takes some 10 sec to do:

1) Go to Window -> Devices & Simulators and untick Show as run destination

enter image description here

2) Unplug the cable and plug it back in.

3) Run the project.

This should be solving your problem!

Upvotes: 25

Mengrolek
Mengrolek

Reputation: 117

Check that on the "Runner" option is selected the correct device. Although you have one device physically plugged in with a cable, Xcode could have connected via WiFi to any other device that has the "Connect via network" option enabled.

Check the "Runner" device (3rd Top Left button after the "build & run", and the "stop" buttons)

Upvotes: -1

Ahsan
Ahsan

Reputation: 501

there are two solution worked for me. 1) disconnect your device from the mac and reattach it. 2) disconnect your device from the mac and restart it and then connect it with mac it'll work

Upvotes: 4

Iron John Bonney
Iron John Bonney

Reputation: 2551

I recently ran into this issue with XCode 8 just after updating my device from iOS 9 to 10. The exact error I received was:Development cannot be enabled while your device is locked. Please unlock your device and reattach. I received this error even when my phone was unlocked, and after unplugging and re-plugging in the device.

As is mentioned in several answers, the device is locked message is actually referring to the device not trusting the MacBook. In my case, I think my phone defaulted to not trusting my computer after updating to iOS 10. Here are the steps that worked for me to reset the settings (this is the same process that is mentioned in the Apple support page in tehprofessors' answer):

  1. Disconnect your device from your MacBook and close Xcode.
  2. On your device go to Settings > General > Reset, then tap Reset Location & Privacy
  3. Plug your device back into your computer, and on the device you will be prompted to trust the computer. Tap trust.
  4. Now reopen Xcode and rebuild the project.
  5. The device locked error should disappear.

Upvotes: 125

Justa Guy
Justa Guy

Reputation: 1

I haven't seen this in any of the answers here, but the only thing that worked for me is an option on the device itself called Enable UI Automation. Supposedly it will turn itself off after an update. Go to Settings, Developer, then find Enable UI Automation.

This worked on my iPad 6th generation.

Upvotes: -2

salouri
salouri

Reputation: 821

For me, when I was about to unpair my device from xcode, I noticed it was just Preparing debugger support for my iPhone and it told me that "Xcode will continue when iPhone is finished." Similar to this issue

Upvotes: 0

Roger Oba
Roger Oba

Reputation: 1410

I run into this problem quite often (at least like 5 times a week). Almost every time this happens, a Xcode restart fixes it. But this time nothing seemed to work including:

  • Restarting Xcode;
  • Unplugging and re-plugging the iPhone;
  • Cleaning the project (cmd+shift+k);
  • Cleaning derived data (cmd+option+shift+k)

Done dozens of times in all sorts of different orders.

What fixed the issue for me this time was simply:

✅ Rebooting the Mac.

Upvotes: 8

Cleiton Domingues
Cleiton Domingues

Reputation: 111

There is a simple way to resolve that. At least it works for me. In your iPhone Device Go to Setting > Developer > click in “Clear Trusted Computer” Type the passcode required And done!!!

The simplest way that I found.

Upvotes: 11

Jhansi M
Jhansi M

Reputation: 81

These steps worked for me in iOS 10.

  1. Remove the cable from device.
  2. Plug in the device.
  3. Clean and build the Xcode project.

Upvotes: 8

Tom
Tom

Reputation: 325

This issue is not about "Trust" or not. It's a bug in Xcode.

Just follow these steps.

When Xcode is running and your device is connected:

  1. Lock your device.
  2. Unplug your device from Mac.
  3. Unlock your device.
  4. Plug your device back to Mac.

Upvotes: 6

Nike Kov
Nike Kov

Reputation: 13698

2018

The fastest way for now i found is:

1) Go to Window -> devices (changed the hotkey in xcode to CMD+P for me)
2) Press unpair on the device. enter image description here
3) Press trust in iPhone.
4) Build again or Run without building (Ctrl+CMD+R)

Upvotes: 46

LZM
LZM

Reputation: 189

Generally just unplugging/replugging seems to work for me. But today it didn't and something else seems to have worked: I have enabled network debugging on the device in question and it almost looked like it remembered an old network "lock" setting, while not seeing that the device was actually connected via USB. After (temporarily) de-selecting "Connect via Network" and replugging, it got things working again.

Upvotes: 3

Karl Gjertsen
Karl Gjertsen

Reputation: 4918

Bizare, but I hope it helps someone. I was connected to a VPN (Pro XPN) and that was causing the issue! Disconnected and it worked.

Upvotes: 1

Matt Wagner
Matt Wagner

Reputation: 100

One possibility worth checking, if none of these other solutions work, is that there is no space left on the device. Xcode will not give you a helpful "device full" error to tell you that your device has no storage space left, but it will also not be able to deploy an app build to a device whose storage is full. The only solution in that situation is to delete media or other apps/data to free up enough space.

Upvotes: 1

Amber K
Amber K

Reputation: 698

For anyone who need a logical answer..

  1. Go to Window -> Devices & Simulators. Right click on your device & unpair it.
  2. Disconnect from cable & reconnect.
  3. Wait for it & let Xcode detect you device.
  4. Run the project.
  5. Make sure you TRUST on your iOS device and enter any passcode.

Upvotes: 21

Atarang
Atarang

Reputation: 422

This can also happen due to pending update on your device. This also means you need to update your phone, connect to the MacBook (trust it if needed). This how I found my problem and solution.

Upvotes: 1

Asfand Shabbir
Asfand Shabbir

Reputation: 1294

From the Window Menu in top bar of Xcode, select Devices and Simulators.

(or Press SHIFT + COMMAND + 2)

Then select your device, right click and select Unpair.
Once you do this Trust or Don't trust will appear on your device.
Trust the device again and it will begin preparing it for Development.
Wait for Xcode to pair device for development and then you are good to go!

Upvotes: 90

Jayprakash Dubey
Jayprakash Dubey

Reputation: 36447

This happens at times while using Xcode 9.

Screenshot

There are multiple solution to this as mentioned below :

Note : Make sure that your device is not locked when Xcode is trying to install app.

Solution 1 :

i. Disconnect device and connect again

Solution 2 :

i. Restart you device

Solution 3 :

i. Disconnect device

ii. Quit Xcode (Shortcut key : cmd + Q)

iii. Open your project

iv. Clean project (Shortcut key : cmd + shift + K)

v. Now connect device

vi. Run your project

For me Solution 3 worked perfectly

Upvotes: 12

Paul K.
Paul K.

Reputation: 95

I found that by shutting down a Console and a running Simulator allowed XCode to see my iPhone again. I'd make sure other related programs aren't running if you don't need them.

Upvotes: 1

Carlos Gabriel Gonzalez P
Carlos Gabriel Gonzalez P

Reputation: 1

Check the "Low Power Mode" in disabled. In my case I just disable this check and the deploy works immediately,

Upvotes: 0

jaiswal Rajan
jaiswal Rajan

Reputation: 4661

A simple solution:

  1. First, unplug your device.

  2. Now, unlock your device and plug it in again. Be sure that the device is unlocked.

  3. Now run the Xcode project by selecting the device as target.

Upvotes: 10

Martin Janeček
Martin Janeček

Reputation: 585

I had to re-add device to xcode.

In XCode open Devices and Simulators (CMD+Shift+2), in left list press + button and re-add the same device.

Upvotes: 0

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