Moses Johnson

Moses Johnson is the Editorial Director of GeeksChalk.com, who has a keen eye for news, rumors, and all the unusual stuff around Apple products. Moses is commonly referred to online as The Professor, with decades of experience in tech under his belt.
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415 Articles
Mail error message
Troubleshooting

How to Fix Mail Error: Network Error (POSIX 96) on an iPhone

Fix Mail Error: Network Error (POSIX 96) on an iPhone in iOS 18

By Moses Johnson
How to unblock a number on an iPhone
How To

How to easily unblock a number on your iPhone

This article provides details on how you can unblock contacts or numbers on an iPhone.

By Moses Johnson
iPhone screen showing Find My settings  
How To

How to turn on or off Find My iPhone (2026)

We show you how to turn on and off Find My iPhone using a few…

By Moses Johnson
iPad screen showing Control Center.  
Troubleshooting

My iPad screen won’t rotate! Here’s How to fix it!

Learn why your iPad won’t rotate the screen and how to fix the problem.

By Moses Johnson
Spotlight search window
Troubleshooting

External drive not ejecting properly on Mac after Sequoia update? Fix

Learn how to fix the problem if external Drives won't Eject Properly After macOS Sequoia…

By Moses Johnson
An up-close look at iPhone 16 Pro Max and iPhone 16 Pro.
How To

how to find iphone 16 serial number And IMEI

Learn where to find the serial number, IMEI and IMEI2 of your iPhone 16, iPhone…

By Moses Johnson
tap copyright trademark or registered symbol
How To

How To Type Trademark, Copyright, Symbols On IPhone And IPad

Learn how to write copyright symbol (©), trademark symbol (™), and registered symbol (®) on…

By Moses Johnson
iPhone 16 showing slide to power off screen
Troubleshooting

How to Fix iPhone 16 Not Turning Off Issue

Learn why your iPhone 16 won’t turn off and how to fix the problem

By Moses Johnson
The iPhone’s Messages app, showing iMessages and SMS messages side-by-side.  
Troubleshooting

How to Fix iPhone 16 Not Sending Text Messages

Learn why your iPhone 16 won’t send text messages and how to fix the problem

By Moses Johnson
Woman holding iPhone and mug  
Troubleshooting

How to fix “Call Failed” error on your iPhone 16 Pro

Learn how to fix Call Failed error on your iPhone 16 Pro

By Moses Johnson

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