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.
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688 Articles

How to check if iPhone is unlocked using IMEI

Learn how to check if your iPhone is unlocked using IMEI checker tool, carrier, settings,…

How to Fix a Broken iPhone Speaker: a Step-by-Step Guide

In this article, I'll show you how to fix your iPhone speaker problem once and…

How to fix a flashing Apple logo on iPhone, iPad, and Apple Watch

Here’s how to fix a flashing Apple Logo on an iPhone, iPad, and Apple Watch.

How to fix iPhone caller ID that’s not working

Here are some fixes to try if Caller ID is not working on your iPhone

Apple CarPlay not working? Here’s how to fix it

You can fix many common problems with Apple CarPlay from the comfort of your car.…

How to set up and disable Touch ID on your iPhone, iPad

Learn how to set up and use Touch ID, a fingerprint identity sensor that makes…

How to use screen mirroring on your iPhone

Here’s how to use screen mirroring on your iPhone, a simple way to project your…

How to update apps on iPhone and iOS

Updating your iPhone apps is easy. You just have to know where to look.

iPhone overheating? Here’s why and how to cool it down

Learn what to do to cool down a hot iPhone.

Is your iPhone frozen or unresponsive? Here’s how to fix it

Learn why your iPhone is frozen and what you can do to get it running…

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