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How To: Use an ESP8266 Beacon Spammer to Track Smartphone Users

Smartphones and laptops are constantly sending Wi-Fi radio signals, and many of these signals can be used to track us. In this guide, we'll program a cheap IoT device in Arduino to create hundreds of fake networks with common names; This will cause nearby devices to reveal their real trackable MAC address, and it can even let an attacker take over the phone's data connection with no warning.

How To: Scan QR Codes More Easily on Your iPhone

Starting in iOS 11, Apple introduced a QR code scanner for iPhone that's baked right into the Camera app, reducing the need for a third-party scanner. However, not everyone knew it existed, so a lot of users were still using third-party QR code scanners. In iOS 12 and later, Apple addressed the issue, making theirs much more visible, as well as improved QR code scanning in general.

How To: Access Your Photo Library in Messages for iOS 12 to Send Already Taken Pics & Vids

Ever since 2009, you could send a photo or video that you've already taken right from the Messages app on your iPhone. You would just tap on the camera icon next to the new message box, then choose either to take a new one or select one from your library. If you're running iOS 12, that's no longer the case, but that doesn't mean the capability is gone entirely.

How To: Get Google's Pixel AR Stickers on Your Galaxy S9

Google's ARCore has expanded its support to include the Galaxy S9 and S9+, which means you get access to all the cool new apps that can sense the world around them. But one of ARCore's coolest uses so far is still Pixel-exclusive: AR stickers built right into the Google Camera app. Thankfully, XDA user lofass33 has an ingenious workaround for using these stickers on your S9.

News: We May Finally Know How Many HoloLens Devices Microsoft Sold, & It's a Revealing Peek at the Future of AR

Last week, we told you about Microsoft's Alex Kipman and his nomination for the annual European Inventor Award, presented by the European Patent Office (EPO). And while that's big news in and of itself, it turns out we overlooked a very important detail buried in the EPO's video presentation. What was it? Only one of the most sought-after data points related to the HoloLens since its launch: how many have been sold.

Snapchat 101: How to Attach URLs to Your Snaps as Links

While Instagram users can attach links to images, they can only do so in stories, and only if they meet the special requirements that most users cannot obtain. Snapchat, on the other hand, lets anyone add a link, and it can be done in regular snaps and in your story. This feature has only been around since July 2017, so you may have missed it and not even realized it was a possibility.

How To: Hide the Notch on Any Android Phone

After several Android phones started incorporating the iPhone X's notch, the online community was vocal, with many expressing hatred for the trend. Well, thanks to XDA Forum Moderator Zacharee1, we already have an app to undo the incoming wave of notches.

How To: Hide the Navigation & Status Bars on Your Galaxy S9 — No Root Needed

Putting your Galaxy S9 in Immersive Mode lets you truly enjoy the gorgeous display that Samsung is so famous for. You can't have it set on at all times, however, so you'll still have to deal with the status and navigation bars that cut the phone's aspect ratio down to that of a standard phone. But if you're willing to dig a little deeper, there are ways to go full Immersive Mode on your S9 for good.