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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379 Articles
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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
Closeup of a smartphone showing caller ID from an unknown number.  
How To

How to Hide Your Number On iPhone to Make Anonymous Calls!

The purpose of this guide is to show you how you can hide your number when…

By Moses Johnson
iPhone 16 and iPhone 16 Plus in ultramarine are shown side by side.
Troubleshooting

How to Fix iPhone 16 Microphones Not Working Issue

Learn what to do if the microphones on your iPhone 16 aren't working

By Moses Johnson
Checking for carrier lock in iPhone settings
iPhone

How to check if an iPhone is unlocked or locked to a network

This article explains how you can check if an iPhone is unlocked, or locked to…

By Moses Johnson
A person uses the new MacBook Air in a studio space.
Troubleshooting

Chrome is not Working after Updating Mac to macOS Sequoia, Fix

Learn how to resolve Chrome issues after updating to Sequoia

By Moses Johnson
iPhone 16 Pro
Troubleshooting

How to Fix iPhone 16 Pro No Sound on Call Issue

If your iPhone 16 Pro has no sound during calls, these troubleshooting tips will help…

By Moses Johnson
Check status of Apple refund claim
How To

How to Check the Status of your Apple Refund Claims (2026)

In this article, I explain how you can check your refund claim status.

By Moses Johnson

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