Dave Johnson

Dave Johnson is a staff writer for GeeksChalk based in New Jersey. He covers news, how-tos, and user guides for iPhone, iPad, Mac, and Apple Watch.
Senior Staff Writer
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329 Articles
14-inch MacBook Pro, open, silver color, rounded raised feet, 16-inch MacBook Pro, open, space black color, rounded raised feet  
Troubleshooting

Fix Terminal “Operation not permitted” Error in macOS Tahoe, Sequoia, Sonoma, Ventura, and Earlier

This walkthrough will show you how to fix "Operation not permitted" error messages seen at…

By Dave Johnson
iPhone showing Sync Library turned on in Music Settings.  
Troubleshooting

Sync Settings Not Working in Music After macOS Tahoe & iOS 26 Update? How to Fix

In this article, I'll explain what you can do if Sync Settings is greyed out,…

By Dave Johnson
An open MacBook Pro
Troubleshooting

How to Fix Printers Not Working After Updating to macOS Tahoe 26

The problem is fixable

By Dave Johnson
The Calls tab in the Phone app in Unified layout. Favorite contacts appear at the top. Below the Favorites is a list of recent calls and voicemail. Buttons to view the Calls, Contacts, and Keypad tabs appear at the bottom. The Search button is in the bottom-right corner.  
Troubleshooting

How to Fix iPhone Contacts Randomly Disappearing

Fixes for iPhone Contacts Randomly Disappearing

By Dave Johnson
iPad showing Apple Arcade, iPhone playing music, and MacBook showing Apple TV+.
Guides

How to Change the Names of Your Apple Devices: Step-by-Step

How to rename your Apple devices so you can tell them apart

By Dave Johnson
Guided Access
How To

How to disable touchscreen on iPhone and iPad before lending to kids

Learn how to disable the touchscreen on iPhone or iPad so that your little ones…

By Dave Johnson
An iPad Air in space gray, starlight, pink, blue, and purple.,
How To

How To Connect Google Home To Your iPad: The Easy Guide!

I'll show you how to connect Google Home to your iPad so you can begin…

By Dave Johnson
iPad screen showing Control Center.  
Troubleshooting

iPad Cellular Data Not Working? Here’s The Fix!

In this article, I'll show you what to do when iPad Cellular Data is not…

By Dave Johnson
The new iPhone 17 Pro in cosmic orange.
Troubleshooting

How to fix iPhone 17 Pro Volume Issues

Learn how to fix iPhone 17 Pro volume issues,

By Dave Johnson
A close-up of the USB-C port on iPhone 16e.
Troubleshooting

iPhone charging port not working? Here’s how you can try to fix it

Sometimes a quick clean is all that's necessary.

By Dave Johnson

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