Certain files have a property incorrectly set that will prevent them from being changed or deleted while the system is running. That property can only be removed in Recovery mode. If you don't feel that you can carry out this procedure yourself, please get someone more experienced to help you.
Back up all data. There are ways to back up a computer that isn't fully functional. Ask if you need guidance. Don't skip this step.
Disconnect all external storage devices.
3.Start up in Recovery mode. Select a language, if prompted. The OS X Utilities screen will appear.
This step is only necessary if you use FileVault 2. If you don't know what FileVault is, you're not using it. Go to the next step. Otherwise, launch Disk Utility, then select the icon of the FileVault volume ("Macintosh HD," unless you gave it a different name.) It will be nested below another drive icon. Click the Unlock button in the toolbar and enter your login password when prompted. Then quit Disk Utility to be returned to the main screen.
Select Get Help Online. Safari will launch. While in Recovery, you'll have no access to your bookmarks, but you won't need them. Load this web page.
Triple-click anywhere in the line below to select it:
chflags norestricted /V*//L/Keyc*/*
Copy the selected text to the Clipboard by pressing the key combination command-C.
Quit Safari. From the menu bar, select
Utilities ▹ Terminal
The Terminal application will launch. Paste into the Terminal window by pressing the key combination command-V.
Wait for a new line ending in a dollar sign ($) to appear. Quit Terminal to be returned to the main screen.
Select
▹ Restart
from the menu bar.
You should now be able to change or delete the file(s) in question.
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No need the Developer Account to download and install beta version
One-click to download iOS 13 beta/iPadOS
Automatically detected the compatible firmware package with your iPhone/iPad/iPod
You can also downgrade to iOS 12 using iOS System Repair if you regret after installing iOS 13 beta
Step 1: Download and install UltFone iOS System Repair and connect your iOS device with computer via USB cable.
connect iphone to computer
Step 2: Select Deep Repair mode at the bottom of the interface, and it's worth nothing that through this mode, all you data will be wiped after upgrading.
select deep repair to download ios 13
Step 3: The software will automatically detect the latest officially released iOS version. Click Download to move on.
Step 4: When the firmware downloading completed, click Repair Now to start upgrading.
Step 5: Your device version will be the newest iOS 13, you can have the new Apple experience now.
Way 2: Download Beta Profile with Developer Account
Install iOS 13 Developer Beta Profile on iPhone Directly
If you have developer account, you can try this way to download first and then make this iOS 13 beta profile install. This way may be a little bit complicated.
Step 1: Firstly, you need to go to Apple Developer to download the iOS 13 developer beta profile. Log in with your username and password.
Step 2: Find the iOS 13 beta section and click Download. When Settings prompt, click Allow and choose the device you want to get this beta.
Step 3: When you see the beta show on your device, tap Install and enter your passcode and wait for the installing.
Step 4: After the install completed, restart your device to apply these changes.
If you are unable to install the iOS 13 developer beta profile on iPhone/iPad/iPod directly, you can try to use iTunes to install it.
Step 1: First of all, you also need to have iOS 13 beta profile download on Apple Developer as well. Enter your username and password to download iOS 13 beta.
Step 2: Connect your device to PC/MAC, and the iTunes will launch automatically.
Step 3: Click Summary on the left menu, hold the "Shift" button (for Windows) or "Option" button (for Mac) when tap Restore iPhone/iPad/iPod. This will open a window for you to import IPSW file which you have downloaded, find and select your firmware package and then click "Open".
Step 4: Then a message will pop-up to ensure "iTunes will update your iPhone/iPad to iOS *** and will verify the update with Apple", then click "Update".
And now, your iOS device will update to iOS 13 beta successfully.
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Enabling background sounds on your iPhone or iPad is easy. Follow the steps below to turn on the Background Sounds accessibility feature on your iPhone. While we have used an iPhone for this tutorial, the steps remain the same for the iPad too.
Open the Settings app on your iPhone or iPad.
Now, navigate to the Accessibility settings menu.
Then, scroll down and under the Hearing section, tap on Audio/Visual.
Here, tap on Background Sounds.
On the next page, tap on Sound and choose from the list of available sound effects. That includes – Balanced Noise, Bright Noise, Dark Noise, Ocean, Rain, Stream.
Go back to the previous screen and toggle on the Background Sounds feature.
And that’s it! Your background sounds are now set up and will continue to play unless you turn them off. You can adjust the volume of the background sounds and even choose to play it with other media on your iPhone or iPad. However, be aware that it will eat up some of your device’s battery.
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In order for the devices to be network trusted in 802.1X, the root and intermediate CAs must be installed. This can be performed by enrolling each iOS device with a certificate.
Share a link with the trusted certificate to the iOS devices
Open the link and click ‘Install’ when prompted to download the certificate.
Input the login credentials.
Click ‘Done’ when the certificate is installed.
Follow these directions to Trusted the Root CA
Settings → General → About → Certificate Trust Settings
You will find a list of trusted certificates Click enable on the one just installed.
Installing certificates onto the device bolsters security measures significantly over credentials. However, the best security practice enables the client to authenticate the RADIUS server with a server certificate.
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Never cache device tokens in local storage. APNs issues a new token when the user restores a device from a backup, when the user installs your app on a new device, and when the user reinstalls the operating system. If you ask the system to provide the token each time, you’re guaranteed to get an up-to-date token.
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You can absolutely develop IOS apps on windows 10, Windows 11. Visual Studio 2020 and 2022 both support IOS App development. Now , with that says just like most alternatives it uses Xarmarin and you would develop using .net (c#) and while it’s not obj c it would still be native.
