Field-a

There are several reasons that you might want to restore the factory firmware on your device—maybe you need to send your phone back for warranty purposes, or perhaps you're getting ready to accept an over-the-air update and need to unroot first. In some cases, reverting to the ...more

There's a lot that goes into making a nice crystal radio set, so this is going to have to be broken down into two parts. The first part is the actual making of a functional radio, and the second part is making the whole arrangement look nice. In this part, I'm actually going t ...more

With more digital content than ever, the search feature on smart TVs is essential. But typing is such a terrible experience when you're forced to use voice dictation or peck around with the remote control. Thankfully, there's a better way. Most smart TVs support using your ph ...more

Welcome to Math Craft World! This community is dedicated to the exploration of mathematically inspired art and architecture through projects, community submissions, and inspirational posts related to the topic at hand. Every week, there will be approximately four posts accordi ...more

A few days ago, Russian hacker Alexy Borodin found a way to get free in-app purchases on an iPhone or iPad. In-app purchases include things like items and power-ups for iOS games, as well as subscriptions and "premium" memberships for certain apps. The method is novel, not fo ...more

While using end-to-end encryption may be enough security for most of your messages in Telegram, you can go a step beyond this by sending messages that disappear after an allotted amount of time. This prevents you from having to manually delete the message at a later time, so y ...more

It's finally out. After months of testing, iOS 13 is available to install on your iPhone, which means over 200+ new features you can use right now. The update, released on Sept. 19, can be installed over the air or from a restore image using iTunes in macOS Mojave and older or ...more

While iOS offers a plentiful mix of excellent and exclusive features, what you see is what you get. Apple doesn't leave much room for customizability, meaning most people's iPhones look relatively the same. You can make yours stand out, however, by giving your apps unique and ...more

Welcome back, my rookie hackers! A short while back, I began a new series on database hacking, and now it's time to continue and extend your education in that field. As you know, the database contains all of the most valuable info for the hacker, including personally identifi ...more

Samsung has been on a tear with its flagship devices since the release of the Galaxy S6; The S6 edge, the Note 5, and this year's Galaxy S7 models have all been met with universal acclaim, and even the staunchest of critics have almost nothing negative to say. Almost. Critics ...more

We're nearly done getting our Mac set up for hacking. If you haven't checked out previous tutorials, I'd recommend you do so first before diving right into this one. While macOS is a powerful POSIX-compliant operating system, some of our Linux tools do not work out of the box ...more

Many FarmVille farmers want money fast, or experience fast, or want to level up, or want to speed things up— make and earn things faster. No matter how long they play, they're not getting what they want, and that is to outshine everybody else. But you can't reach the top by si ...more

Other than sticking your crayon drawings onto your refrigerator door, magnets have a variety of unexpected and sometimes surprisingly practical uses, ranging from keeping your chip bags sealed to creating weird patterns on your nail beds using magnetic nail polish. The strong ...more

Whether you're calling the unemployment office, a popular radio contest, or any other phone line that gets super busy, having to recall the number manually is a pain. Whatever you do, however, don't punch in the same digits over again and again — our smartphones can help do it ...more

Wi-Fi tools keep getting more and more accessible to beginners, and the LAZY script is a framework of serious penetration tools that can be explored easily from within it. This powerful and simple tool can be used for everything from installing new add-ons to grabbing a WPA ha ...more

If you're one who likes to tinker with Android, TWRP is the first thing you should install. It replaces your phone's stock recovery mode interface and adds over a dozen advanced features to your device—most notably, the ability to flash ZIPs that can modify practically every a ...more

Cases and stickers are always great, but they aren't the only way to customize an iPhone. The software on your device is full of customization options, from a better-looking home screen and cooler lock screen wallpapers to app icon changes and a system-wide dark mode. There's ...more

There are many tools out there for Wi-Fi hacking, but few are as integrated and well-rounded as Bettercap. Thanks to an impressively simple interface that works even over SSH, it's easy to access many of the most powerful Wi-Fi attacks available from anywhere. To capture hands ...more

The price of hacking Wi-Fi has fallen dramatically, and low-cost microcontrollers are increasingly being turned into cheap yet powerful hacking tools. One of the most popular is the ESP8266, an Arduino-programmable chip on which the Wi-Fi Deauther project is based. On this ine ...more

In general, smartphones and cars don't mix—but this is mainly because you have to take your eyes off the road to poke around on your handheld gadget. In reality, the only difference between your smartphone and your car's FHWA-approved infotainment system is that the latter is ...more

Ever since iOS 7, you could ask Safari on iPhone to show you the desktop version of a website, and in iOS 9, it became even easier to do. However, it's always been a hidden feature, something you wouldn't know is there without reading articles or tips online telling you what t ...more

Update: June 19, 2014 Android 4.4.4 has been released, fixing a small security bug in 4.4.3. The factory images have already been made available to all current-generation Nexus devices, and I've linked them out below. This does not affect the process depicted, you can still u ...more

Navigating and editing text is an essential part of any operating system, and with iOS 13, Apple has made some significant changes. Some things remain the same when working with text, but there are many updates to moving the cursor, scrolling, and selecting, cutting, copying, ...more

Back in 2007, YouTube user HouseholdHacker posted a parody video on how to make a high-def speaker for under a buck. MythBusters took on the challenge and busted it. Although that particular method doesn't seem to work, that doesn't mean you can't make your own speaker for le ...more

To record an audio message in the Messages app on iOS 15, you would tap and hold the audio messages button in the text entry field of the conversation. Then, you could let go to preview it before sending it or swipe up to send it right away. That's no longer the case on iOS 16 ...more

There are over one million apps in the Google Play Store, and many of them are restricted to certain device types, brands, and Android systems. If you're using one of the new, high-end devices like the HTC One M8 or Sasmsung Galaxy S5, pretty much all apps will be available t ...more

In this series, I'll be exploring electromagnetic weapons, how to build them, their function and application to the future, and the amazing possibilities electromagnetism has to offer. First, the electromagnetic pulse generator, or EMP. You've probably heard of these before, a ...more

Face ID does an excellent job with keeping your iPhone safe, boasting a million-to-one odds against unauthorized access when compared to Touch ID, which is 20 times less secure. However, it's far from being truly hands-free, as you still need to swipe up the lock screen once i ...more

No one likes in-app advertisements, especially in mobile gaming, but they're necessary because they offer developers a way to make revenue without having to charge you to play. In some games, in-app purchases give you the chance to remove ads, but what can you do about apps th ...more

Welcome back, my budding hackers! When we are looking for ways to hack a system, we need a specific exploit to take advantage of a certain vulnerability in the operating system, service, or application. Although I have shown you multiple ways to exploit systems here in Null B ...more

No matter how many camera improvements a phone adds, you're always better off using manual mode. Known as "Pro Mode" on the Galaxy S20, this feature can remove Samsung's pre- and post-processing from photos, putting you in total control. At first glance, manual mode is intimi ...more

Your iPhone has hidden apps that work behind the scenes to filter SMS messages, trust computers, deal with payments, test ads, and perform other actions. You won't find any of them in your App Library, but there are tricks you can employ to unlock and use some of these secret ...more

In this article, I'll show you how to build a coil gun. A coil gun is a device that fires magnetic projectiles at high velocities, using electricity. Coil guns require no explosive propellant, therefor can be fired an infinite amount of time, providing that there is ammunition ...more

If you want the ability to play YouTube videos in the background as you multitask on your iPhone, you'll have to shell out $11.99 a month for the privilege of doing so with YouTube Premium. Not all of us can afford nor justify such an expense, but if your iPhone is jailbroken, ...more

No matter how much of a gamer you are, typing with your PS4 controller is a bitch. Let's just be real. Having to move left, then right, then down, for every single letter can make writing a message very time consuming; so much so that I usually avoid messaging altogether. How ...more

Mobile gaming has exploded in recent years, with experts predicting 2.4 billion global mobile players by the end of 2019. It already accounts for 47% of the worldwide gaming market, besting console and PC. No wonder we've seen the rise of gaming smartphones, a class of phones ...more

For the most part, people use real names on Facebook. That's all fine and well for keeping tabs on those you know, but it can make friendly Messenger chats feel oddly formal. Skirt around this stiffness by giving your friends nicknames in Messenger for Android and iOS, so your ...more

Apple's iOS 13 has been available for beta testing since June, and the stable release pushed out to everyone on Thursday, Sept. 19. To help you make the most out of iOS 13 for iPhone, we've rounded up everything you'll want to know, whether a colossal feature, small settings c ...more

The Calculator app is probably one of Apple's most-used iPhone apps, yet I always meet people who don't know all the little tricks there are to using it more efficiently. You may know most of them, but there's a chance you don't or at least forget about some of them. What a " ...more

While you can do a lot of things on your smartphone that were once only done on a computer, having a laptop is still necessary and critical for many tasks. Often times, the two devices work very well together. We recently covered Google's Chrome Remote Desktop, an app that al ...more

After years of user complaints, Samsung is finally letting us remap the Bixby button without the need of a third-party app. The new feature requires One UI a simple app update to Bixby, but there's one major downside: Samsung won't let you remap the button to open other digita ...more

In this article, I'll show you how to build a simplistic circuit to generate negative ions. Negative ions have been known to contribute to fresher air, happier mood, and general health benefits. However, they also look amazing in the dark (check out the photos below, purple pl ...more

It’s called Urophagia—the art of consuming urine. There could be any number of reasons for having the desire to drink your own urine (or somebody else’s). There’s the so-called term “urine therapy,” which uses human urine as an alternative medicine. In urine therapy, or uropat ...more

There are many things Apple doesn't tell you about its products, and that's definitely the case when it comes to its Messages app. Hidden features lurk in your SMS and iMessage conversations just waiting to be found, and we've unearthed some of the most secret ones. Instead o ...more

While the Galaxy S10 is a beautiful phone, its software isn't for everyone. One UI makes huge strides toward undoing the mess known as TouchWiz, but for purists, it's still not quite on par with stock Android. Fortunately, the beauty of Android is you can change this with a fe ...more

There are so many things to love about the Nexus 5, from timely updates to newer versions of Android to a terrific blend of price and specs. But while mobile phone tech keeps churning along, battery technology isn't quite up to snuff yet, and I find myself wishing that my phon ...more

While you may not have loads of secret files hiding on your computer, there might be one or two items that need a little extra security, like a file of website logins or a folder of risqué photos. Mac OS X does have FileVault as a good security option, which uses XTS-AES 128- ...more

Let's say you want to download an Instagram video to your iPhone. What do you do? While Instagram doesn't offer an official solution, there are backchannel methods that exist to get the job done. However, if you want native support for downloading Instagram videos directly to ...more

When a new jailbreak method comes out, Apple is quick to patch the vulnerability it exploits by issuing a new iOS update. If you were to accept such an update, you'd no longer be able to jailbreak your iPad, iPhone, or iPod touch unless you could roll back your firmware to a v ...more

Welcome to Minecraft World! Check out our tutorials, post to the community corkboard, and come play on our free server! Are you looking to clean up the look of your Minecraft with something other than a simple texture pack? Do you sometimes experience lag spikes that drop you ...more

Skyrim really took the cake this year. With its awe-inspiring gameplay, much improved combat and leveling system, and a fresh new look, it's no wonder the game has already received a Game of the Year award. But for hardcore gamers, the fun may be over. You've played the game f ...more

With AirPlay for iOS, Chromecast Screen Mirroring, and even third-party PC-pairing apps to play around with, getting your devices to interconnect could not be any easier than it is today. Samsung has never been prone to leave a feature unexplored, so in this mold, they create ...more

When you can't think of a way to respond in Messenger with words, emojis and stickers will do the trick. Since Facebook is all about the "likes," which use a thumbs-up icon, there's a shortcut to the symbol just to the right of the chat field. It's always there to send a quick ...more

When it comes to antivirus software, you don't want some fly-by-night developer having access to the sensitive data that these apps can scan. Luckily, most of the longest-tenured antivirus companies from the realm of desktop computers offer complete security suites for Android ...more

Welcome back, rookie hackers! We recently began an exploration of ways to hack using the Bluetooth protocol. As you know, Bluetooth is a protocol that connects near field devices such as headsets, speakers, and keyboards. Its minimum range is a 10-meter radius (~33 feet) and ...more

When the Nexus 5 debuted, one of its coolest features was the fact that you could say "OK Google" any time you were on the home screen to launch a Google Voice Search. This feature was ultimately made available for other devices by way of the Google Now Launcher. Recently, Go ...more

Hidden deep in WhatsApp's emoji database is a middle finger emoji, and there's a really easy way to use it. Much like Spock's "live long and proper" Vulcan salute, this one can be used simply by copying and pasting the emoji from our tweet. Note that the emoji, for now, does n ...more

The on-screen gestures on the iPhone X have taken touchscreen interaction to a whole new level. While they're needed due to a nearly bezel-less display and lack of a Home button, you can actually get these iPhone X-exclusive swipe gestures on any other model iPhone. The only c ...more

There are three tiers to Android customization: things you can do by default, things you can do with ADB, and things you can do with root. While root is still pretty tricky to get, ADB mods just got a lot easier. Back in Android 9, Google added a feature that allowed you to w ...more