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How To: Install R4DS

R4DS is a cartridge-based system that fits right into SLOT-! on a NIntedo DS. Here's how to install R4DS and be able to support ROMS, multimedia files, and homebrew games on your Nintendo DS.

How To: See Which Audio Codecs Your Bluetooth Headphones Support with One UI 3.0

Codecs are like ZIP archives for media files. Rather than storing an entire analog sound file, the digital version is compressed to save space. The algorithm used to reduce file size is called a codec, as it encodes to digitize and decodes when it's time to play the file back. So as you can imagine, a better codec can lead to drastically improved sound quality.

News: Apple's iOS 13.4 GM for Developers Includes New Memoji Stickers, Updated Mail Toolbar, CarKey API & More

Apple released iOS 13.4 to registered developers on March 18. The update comes just hours after news broke that iOS 13.4 would hit all compatible devices on March 24. The update is the GM (golden master), which makes it the same build as the official release we expect to see on March 24, although Apple does refer to it as "beta 6" on the dev site.

News: Apple Releases Fourth iOS 13.4 Public Beta for iPhone Today

With today's release of iOS 13.4 developer beta 4, it seems Apple is closer than ever to releasing the official build for its upcoming iOS update. If you've been following the beta closely, you know that means new Memoji stickers, CarKey API support, and Mail toolbar updates, in addition to general bug fixes. Public testers can now take that extra step, as Apple just released 13.4 public beta 4 today.

How To: Enable HomeKit Secure Video on Your Logitech Circle 2 Cameras

In iOS 13, Apple introduced HomeKit Secure Video, which allows smart home devices with cameras to give iPhone users a private and secure way to store recorded videos. Plus, it has benefits such as object detection and activity notifications. Logitech is the first to add support for HomeKit Secure Video with its Circle 2 cameras, and all it takes is a quick firmware update to get started.

How To: Fix Blemishes in Photoshop Express to Get Flawless Skin in Your Selfies

You finally did it! You've combined all your knowledge about photography and angle to take the perfect selfie. It looks stunning, and you cannot wait to post that bad boy to Instagram. But wait, what's this? Your skin looks so uneven and — is that a zit!? I guess the selfie gods were not in favor of your skin when you snapped it. Luckily, you can fix all of those minor flaws with the help of Photoshop Express.

News: Google Authenticator Is NOT the Best 2FA App Anymore

If you want the best two-factor authentication app out there, our pick is Authy. A close second is LastPass Authenticator. If neither of those is to your liking, try Duo Mobile or Microsoft Authenticator. But if you're fine with missing out on great features, then and only then should you look at using Google Authenticator.

How To: 3 Tips to Get to Inbox Zero Faster in Gmail

On average, an office worker receives 121 emails a day. Many of these emails are trivial and don't require immediate attention. While Gmail's automatic spam filters catch plenty of irrelevant emails, some still make their way into your inbox. Fortunately, Gmail's tools aren't limited to just spam filters.

News: Probiotics Could Cut Sepsis in Infants for Just $1 a Day

Bacteria, viruses and other germs sometimes set off the immune system to overreact, producing a severe condition called sepsis. Sepsis is so dangerous that it is the leading cause of death of children across the world, killing a million kids every year, mostly in developing countries. Probiotic bacteria might be able to prevent sepsis and infections, but no large research studies have been done to find out whether that actually works. Until now.