Fix Code P0401

Apple just released the eighth developer beta for iOS 14 today, Wednesday, Sept. 9. Beta 8 (18A5373a) appears to be a minor update offering bug fixes to improve overall stability. At the time, we haven't discovered many new or notable features or changes. As the eighth beta f ...more

Penetration testing, or pentesting, is the process of probing a network or system by simulating an attack, which is used to find vulnerabilities that could be exploited by a malicious actor. The main goal of a pentest is to identify security holes and weaknesses so that the or ...more

3D printers allow hackers and makers alike to create something from nothing. They're an incredible technology that lets you build protective cases and covers for gear such as a wardriving phone and Raspberry Pi-Hole. 3D printers can even help you out in a bind when something b ...more

It took a while, but the premiere custom recovery for Android is now available for Google's Pixel 4 and Pixel 4 XL, so it's finally open season on root mods. TWRP custom recovery allows you to install Magisk and get root access in a few taps, and it can even save you from the ...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

Apple's upcoming update for the iPhone, iOS 13, is introducing over 200 new features. Many of those were never formally announced, instead silently released in new updates to the beta. After eight developer beta cycles, we were anxiously awaiting the release of developer beta ...more

The third developer beta for iOS 13 has been out since July 3, and while devs have had fun exploring all the new features, those of us on the public beta have sat on the sidelines running the public version of dev beta 2. But we don't need to wait any longer, as Apple just rel ...more

The first developer beta for iOS 13 is available to install on iPhone models, but the process for doing so may be a bumpy ride. Apple has not included configuration profiles for the developer beta yet, and many developers are having issues installing iOS 13 even with macOS 10. ...more

After a long hiatus, we shall once again emerge from the shadowy depths of the internet to build an exploit. This time, we'll be looking at how to defeat a non-executable stack by using the ret2libc technique — a lean, mean, and brilliant way of exploiting a stack overflow vul ...more

Even though most phones don't have Oreo yet, Google has released Android 9.0 Pie. It's available on Google's own Pixel devices, and updates should soon be available to partnered devices from Essential, Nokia, Oppo, Sony, Vivo, and Xiaomi. We're already digging into it to highl ...more

Hi, everyone! Recently, I've been working on a pretty interesting and foolish project I had in mind, and here I'm bringing to all of you my findings. This guide's main aim is to document the process of building an Android kernel, specifically a CyanogenMod kernel and ROM, and ...more

In the aftermath of the unindicted police killings of Michael Brown and Eric Garner, we've been told that the system worked as intended. When our legal system's outcome is at conflict with what a majority of Americans believe is just, it's clear that some changes are needed. B ...more

Seventeen years ago, Apple released iPhone, the first mainstream consumer phone with a touchscreen as its main typing input method. Apple has been perfecting its onscreen keyboard for almost two decades, and it's built with some fantastic features that make typing faster and e ...more

In case you missed it, Apple has added a lot of new features and enhancements to the Music app on your iPhone, changes that benefit both Apple Music subscribers and non-subscribers. Chances are, you haven't seen all the changes yet, especially since many of them weren't releas ...more

The latest software update for iPhone has a few new features you should know about, including an enhanced security feature to protect your Apple ID account from phishing and other attacks. Keep reading to see everything new that's included with iOS 16.3 for iPhone. The iOS 16 ...more

Safari keeps getting better and better on the iPhone, and that's exactly what happened with the latest Safari 16 update for iOS. There are new web extension APIs for developers to make even more kinds of Safari extensions, as well as support for new web technologies that give ...more

It can be very frustrating: You open your Messages app, send an iMessage, and then see that dreaded red exclamation point or horrible green SMS bubble. At this point, you may be curious whether it's just your iPhone or whether iMessage is broken for everyone, but how do you fi ...more

The hottest word game right now is Wordle, a simple game that gives you six chances to guess the five-letter word of the day. I've already shown how you can add the real Wordle app — not a fake clone — to your iPhone or Android phone's home screen. But there's also a way to sa ...more

The standard way to sort your notes and to-dos in Reminders has always relied on you putting them in the correct list and group. Then came smart lists for flagged and scheduled tasks, followed shortly by a smart list for tasks assigned to you. In iOS 15, Apple brings yet anoth ...more

Spotify has caught up to Apple in monthly podcast listenership and is even forecast to surpass Apple soon, but Apple just made some serious changes to its Podcasts app for iOS and iPadOS that could keep Apple at the top. Third-party podcast players still offer features that A ...more

ESP8266-based microcontrollers can be used to create exciting and legal Wi-Fi hacking games to test your or your friends' Wi-Fi hacking skills. When you first start learning how to hack Wi-Fi, it can be tempting to use your powers on Wi-Fi networks you don't have permission t ...more

If you've wanted to get into Wi-Fi hacking, you might have noticed that it can be pretty challenging to find a safe and legal target to hack. But you can easily create your own test network using a single ESP8266-based microcontroller like the D1 Mini. Our goal is to crack a ...more

Just as expected, Apple pushed out iOS 14.3 to the masses on Monday, Dec. 14, which coincided with the pumped-up release of Fitness+, Apple's subscription workout service for Apple Watch users. It also came one day before the new AirPods Max hit buyers, and the iPhone needs iO ...more

Apple's first release candidate for the iOS 14.3 beta came out on Dec. 8, but there must have been a serious bug in the system because iOS 14.3 RC 2 followed it just two days later on Dec. 10. These builds highlight everything that you should expect to see on the stable versio ...more

Google TV gives the new Chromecast a home screen full of curated content from your various streaming subscriptions, but it's just that — a home screen app. Underneath, Google's new dongle is running Android TV, meaning its home screen is just a launcher that can be installed o ...more

Apple just released the first beta for iOS 14.2 to iPhone software testers today, Monday, Sept. 21. This update brings a new Control Center tile for Shazam music recognition, a redesigned Now Playing Control Center tile, and a new "People Detection" feature in Magnifier. A si ...more

If you've ever been into custom ROMs, you likely know the Dirty Unicorns name pretty well. It's been synonymous with unique features and awesome tweaks when compared to stock. Recently, Dirty Unicorns has returned again in a big way with some neat features for Android 10. Typ ...more

Apple just released iOS 14 public beta 7 for iPhone today, Thursday, Sept. 3, and features new dark mode wallpaper options. Choose from any of the rainbow wallpaper's color backgrounds, and iOS will automatically shift the background to black when you enable dark mode. You sh ...more

Apple just released iOS 14 developer beta 7 for iPhone today, Thursday, Sept. 3. The new update (18A5369b) features new wallpaper options. Now, you can choose any color background for the rainbow wallpaper, and iOS will turn the background black when you enable dark mode. The ...more

At first, it may look like it's mostly a behind-the-scenes update, but iOS 14 public beta 6 is more than just that. The biggest addition to iOS 14 for iPhone in this version is the beginning of Spatial Audio, an AirPods Pro feature. Other notable changes in beta 6 appear in Ma ...more

Apple just released the fifth public beta for iOS 14 today, Wednesday, Aug. 19. This update comes one day after Apple released iOS 14 developer beta 5. It follows iOS 14 developer beta 4 by 15 days, and iOS 14 public beta 4 by 13 days. Apple released this new update to public ...more

Apple just released the fifth developer beta for iOS 14 today, Tuesday, Aug. 18. This update comes two weeks after Apple released iOS 14 developer beta 4, and 12 days after the release of iOS 14 public beta 4. Apple seeded this new update to developers at 10 a.m. PDT, the sta ...more

Kali Linux has come a long way since its BackTrack days, and it's still widely considered the ultimate Linux distribution for penetration testing. The system has undergone quite the transformation since its old days and includes an updated look, improved performance, and some ...more

Using a strong password is critical to the security of your online accounts. However, according to Dashlane, US users hold an average of 130 different accounts. Memorizing strong passwords for that many accounts is impractical. Fortunately, password managers solve the problem. ...more

A rather exciting development has recently surfaced in the jailbreaking scene for iPhone. The Checkm8 bootrom exploit was shown off to the public by axi0mX, which made way for the undefeatable Checkra1n jailbreak tool. With it, you can freely jailbreak a variety of older iPhon ...more

Overall, iOS is more impressive than ever with its stability enhancements, security tools, suite of apps and services, and intuitive user interface. With each passing update, things just get better and better for iPhone users. But don't think for a second that this is all beca ...more

The next big iOS version for iPad, iPhone, and iPod touch was revealed by Apple at WWDC 2018 and dropped for everyone on Sept. 17, 2018, less than a week after Apple revealed the new iPhone lineup. We've rounded up all the big picture items and secret features and changes we c ...more

OpenBSD implements security in its development in a way that no other operating system on the planet does. Learning to use the Unix-like operating system can help a hacker understand secure development, create better servers, and improve their understanding of the BSD operatin ...more

Besside-ng is the hidden gem of the Aircrack-ng suite of Wi-Fi hacking tools. When run with a wireless network adapter capable of packet injection, Besside-ng can harvest WPA handshakes from any network with an active user — and crack WEP passwords outright. Unlike many tools, ...more

Apple's iOS 16.3 update for iPhone had impressive new features, but iOS 16.4 might impress you even more. The latest iPhone update was released on Monday, March 27 — a day earlier than Apple Music Classical, Apple's new classical music streaming service — has at least 30 more ...more

Apple released the latest version of its iPhone OS, iOS 14.6, today, Monday, May 24. This latest update (build number 18F72) introduces new features like unlocking your iPhone with Voice Control after a restart, Apple Card Family support for up to five people, and subscription ...more

With all the time most of us spend on our phones each day, wouldn't it be great if we could get rewarded for our addiction? Well, we can, thanks to various iPhone apps out there that can help us make a quick buck, earn cash back, donate freebies to charity, get complimentary c ...more

The new iOS 14 for iPhone arrived Wednesday, Sept. 15, 2020, alongside iPadOS 14, and there are a lot of features to uncover. Improved widgets. Better home screen customization. Exciting Messages improvements. New abilities in Camera and Photos. There's so much here that it'll ...more