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**FydeOS (Fyde is pronounced like “fide” /faɪd/) is a lightweight operating system with a Linux kernel + browser platform + container technology driver; its use is very similar to Google Chrome OS. **

FydeOS can run smoothly on most mainstream hardware. Hardware devices installed with FydeOS can perfectly support the latest web application standards, are compatible with Android programs and Linux environments, and can be used in network environments in China without any obstacles, providing a Google Chromebook-like experience

FydeOS is based on the second development of Chromium Project. We have modified and optimized its kernel, based on the most optimized browser platform, and added more localization enhancements that conform to the habits of users in China and improve user experience. Cloud technology operating system that t ruly meets the needs of the Internet era. After a long time of accumulation of technology, we can make FydeOS run in more types of hardware devices and provide an overall solution around FydeOS.

Like Chromium OS, FydeOS was born out of the belief that the applications and services we use today will gradually move to the cloud. With the continuous maturity of browser platform technology and web front-end technology, we are convinced that most of the work you do today through the Internet can be achieved through a simple browser window in the future. We are entering a new era, and the applications that need to be installed will become history.

Currently we have the following three main FydeOS releases. According to different scenarios, you can choose the release download experience that suits you best:

  • FydeOS for PC is the most universal FydeOS release, intended to adapt to most PC devices with Intel CPU and Intel integrated graphics. You need to use a USB storage medium to boot for the first time. The specific installation guide can be viewed on the following page. If you have a PC device with Intel integrated graphics that was shipped after 2010, there is a high probability that FydeOS for PC is compatible.

  • FydeOS for You is our customized version for some designated devices. It has better adaptability and supports some device-specific functions. If you happen to have these adapted devices, then it is recommended that you use the corresponding version. The installation method is basically the same as FydeOS for PC. The list of devices supported by FydeOS for You will be updated from time to time. For details, please check the download page.

  • FydeOS VM for VMWare is our FydeOS virtual machine image file specially adapted for the VMWare virtual machine client. Use this release to experience FydeOS in the easiest way to experience, just download the latest image file of the FydeOS VM for VMWare client, follow the guide Import can experience most of the functions of FydeOS on all mainstream operating systems with VMware client installed. It is worth noting that due to the special design of FydeOS and its subsystems, some functions in FydeOS VM are restricted or unavailable. For details, please read the release notice of FydeOS VM carefully.

At the same time, we also open sourced some of the core technologies for making FydeOS, and maintained Chromium OS that can run on embedded devices and single-board computer development kits, including:

  • Chromium OS for Raspberry Pi: Adapt to the famous single board computer development board Raspberry Pi and its suit (3B / 3B+ / 4B / Pi400).
  • Chromium OS for Asus Tinker Board: It is compatible with the development board Tinker Board produced by Asus which has the same specifications as the Raspberry Pi.
  • Chromium OS VM for VMWare: The Chromium OS virtual machine adapted to the VMWware virtual machine client is also the technical basis of FydeOS VM for VMWare.

Compared with other more traditional Linux distributions, FydeOS has special requirements for graphics drivers. This means that FydeOS can only run on some PC devices that meet the requirements.

Currently, FydeOS for PC can only be started on PC devices using Intel x86 architecture processors. If you want to use the additional functions of the Android subsystem and the Linux subsystem, the device must have the fourth generation or later Intel graphics chip.

FydeOS (and its upstream project Chromium OS) is different from other traditional Linux distributions. It is highly optimized and integrated into the browser’s graphics stack (including the underlying graphics driver, hardware acceleration module, and user-mode window manager module) for proprietary Technology, while providing higher performance and user experience for FydeOS, it also limits the compatibility of hardware.

If you find that FydeOS fails to run on your computer due to various reasons and need help, please post in our [community]]( for help and provide as detailed information as possible about you Configuration information, we and the fans in the community will help you answer as soon as possible.

If you want to experience FydeOS with the best adaptability, please try FydeOS for You.

FydeOS is committed to adapting and compatible with more hardware devices and external devices. Due to the particularity of the Chromium OS system structure, FydeOS is currently less compatible with hardware devices that are not mainstream, do not provide mainline Linux kernel drivers, and do not support mainstream Linux distributions.

“A device” here may include but is not limited to:

  • Wireless network card
  • Ethernet card
  • Sound
  • Printer
  • Automatic identification of headphone jack
  • Touchpad
  • Touch screen
  • Stylus
  • Fingerprint reader
  • Camera
  • Gravity sensor module
  • Battery remaining display
  • Power management strategy
  • Other unique external devices

If you find that your “a device” cannot be recognized on FydeOS and the function is missing, you can try to run Ubuntu Desktop on your device to detect the device Compatibility with Linux systems. If it appears to be recognized under Ubuntu and can work normally but fails under FydeOS, welcome to our Chinese Community to post for help and provide detailed hardware information to help Our development team further improves hardware compatibility.

In addition, FydeOS for PC will also have varying degrees of adaptation problems on x86 Chromebook devices, because FydeOS tried to add support for more PC devices when it was built, and for this reason, the upstream project’s special optimization for Chromebooks was removed. For Chromebook devices that are still under support, we still recommend using Google Chrome OS for the best experience.

The use of FydeOS for PC and FydeOS VM is free and timeless. But it does not include the value-added services of FydeOS.

Value-added services applicable to FydeOS for PC / FydeOS VM include but are not limited to:

  • System OTA upgrade service
  • Work order service with SLA guarantee
  • A service that is remotely accessed by the FydeOS support team and helps you solve problems

The value-added service charging plan for FydeOS for PC is still under development, so stay tuned.

Since September 2020, we will open the “FydeOS Subscription Service” to devices with FydeOS for You. For more information about FydeOS subscription service, please refer to this question.

FydeOS is committed to providing more complete industry solutions. The current business model revolves around public solution customization, technical consultation and system authorization. If you are a corporate customer who intends to adopt FydeOS as a solution, please contact us.

What is FydeOS subscription service?

The FydeOS subscription service is a value-added service we launched for FydeOS for You in September 2020.

Every device with FydeOS for You installed will get a 120-day trial period from the first activation of the online activation. If you think FydeOS for You can help you, during the trial period, you can choose to pay a FydeOS subscription fee. After the payment is successful, the subscription validity period of your FydeOS for You device will be increased by 365 days from the time of payment.

How do I charge for FydeOS subscription service?

Currently, the cost of the FydeOS subscription plan is $12.99 per year.

What can FydeOS subscription service bring me?

-Continue to use FydeOS for You and all its affiliated cloud services without restrictions. -Continuous system updates, delivered to FydeOS devices in the form of OTA. -In FydeOS Community you can bind the subscribed device ID, unlock the “Patron” badge, and then submit a technical support ticket to the support team about FydeOS. The FydeOS technical support team will reply within one working day.

If I do not choose to pay for the FydeOS subscription service, what will happen to my FydeOS for You device?

After the trial period of FydeOS for You ends, if the system fails to detect a valid subscription, the system will act to restrict usage and give you sufficient time to remind you to save your existing work or backup data.

If you think FydeOS for You can help you, please consider paying for a FydeOS subscription.

The release and maintenance of FydeOS for You optimized for different devices requires significantly more investment than maintaining FydeOS for PC; a complete FydeOS experience also requires the support of a series of cloud services, but the operation and maintenance of these cloud services requires expensive expenditures. Sustain.

We hope to bring you the best FydeOS experience; This means that we are not interested in inserting advertisements, reselling your privacy, and other inelegant monetization methods.

At the same time, we believe that “donation” is a less controllable and unfair income method. For the FydeOS for You product and its usage scenarios, paying the subscription fee in exchange for value-added services is undoubtedly the most direct and fair way.

We hope FydeOS for You can help you. If you approve of FydeOS, please consider paying for the FydeOS subscription plan.

After booting from a USB storage medium, confirm that the compatibility of FydeOS on your hardware device is sufficient to meet the requirements. Because the read and write speed of USB storage media is limited, you need to install FydeOS to the hard disk to use the full functions of FydeOS.

At present, we provide two installation solutions, one is “full disk installation”, another is “operating system multi-boot installation”. It should be emphasized that these tutorials assume that you are no stranger to the daily operations of multiple operating systems and have the most basic familiarity. If you find these tutorials difficult to understand, please seek the help of friends around you or go to FydeOS Chinese Community for help. If you are not sure about your operation, please do not continue.

Starting from FydeOS v11.3, the “FydeOS Installer” can be called from the first screen when FydeOS is started for the first time. You can install FydeOS to the hard disk of the device according to the prompts on the screen.

The Google Play Store requires official Google authorization for distribution. The applications distributed through the Google Play Store usually rely on Google’s service framework. Once the official authorization of Google is lost and the applications are installed into the operating system, these applications will often not work properly.

In addition, due to well-known reasons, the Google Play Store cannot be used normally in mainland China.

FydeOS currently presets “FydeOS App Store” and “Coolapk” (Android Subsystem Only) in the system, where you can get tens of thousands of extensions, Chrome apps, and Android apps.

If you have a certain hands-on ability and the need to use the Google version of Android services, you can obtain the relevant configuration program in the “FydeOS App Store” to configure it to meet your needs through the open source project “Open GApps”. It should be noted that this feature is currently in the testing phase and cannot guarantee usability.

Please note: Android subsystem and Android related functions can only be adapted to Intel series graphics cards.

After logging into the system for the first time, the system will automatically download the latest version of the support plug-in and required files from the FydeOS server. Please be patient. After the download is complete, these programs will be installed automatically, that is, they can be found in the “Application Launcher”.

To run the Android program, you need to activate the Android subsystem carried by FydeOS. The first time you run “Android Settings” you can start the activation process. The Android subsystem has an independent set of “End User Agreement”, please read it carefully. You can only activate and enable the Android subsystem by clicking “Confirm Start” after checking the consent.

After the Android subsystem is successfully activated, the setting interface of the Android subsystem will open immediately. The “Android Settings” program is the entrance to the Android Settings interface.

At present, FydeOS presets “Coolapk” as the default Android application store. You can download and install the applications you need. Of course, you can also download the apk file by yourself, double-click to install the apk program by “sideloading”, or install an Android market program you like and install new Android software through the market program.

You will need CrossOver Chrome OS sold separately by Codeweavers, which can run some common Windows software on FydeOS.

Please note that CrossOver Chrome OS requires Linux(beta) on your FydeOS devices to be activated. It has a 14 days trial period and currently priced at $39.95.

Please refer to this knowledge base guide

In the FydeOS for PC version, you can use the username chronos to log in to the system’s command line (shell) environment. The account does not set a password by default. In addition, the account can also use the sudo command to escalate rights.

For security reasons, we recommend that you change the password as soon as possible.

For how to change the password of FydeOS, please refer to this knowledge base document.

Because the partition format used by FydeOS is not recognized under Windows, such a prompt will appear, but remember not to format it, otherwise it will cause FydeOS to not be used normally.

At present, a virtual machine version adapted to VMware has been launched. You can visit download page, download and try it. It should be noted that this virtual machine image can only be adapted to VMWare Workstation Pro 15, Workstation Player 15 and WMWare Fusion 11. If you want to get the best experience, we still recommend you to use FydeOS for PC or FydeOS for You version.

Unfortunately, FydeOS cannot fully adapt to the computer equipment you are using. If you want our help, please:

  • Try to run traditional Linux distributions such as Ubuntu on your device, compare and record the adaptation.
  • Describe in detail the hardware-related information that cannot be adapted, including the brand model of the hardware, whether it can be supported under other Linux distributions, related driver information, etc.
  • Send the above content to our Chinese Community in detail, waiting for our technical support to give you feedback and help.

We are very sorry that we cannot make any commitment to adaptation for individual users, but we will do our best to support it if we receive a sufficiently detailed application for adaptation.

You can use disk management tools (such as Disk Genius, etc.) to delete all partitions on the U disk and create a new partition, format it to the file system you want, please be careful.

This is a known bug, but we found that running Etcher as an administrator on Windows 10 can solve most unstable problems (thanks to Greg for providing this tip). Of course, you can also try to use a not-so-high-value but old-fashioned and more stable programming program, such as Rufus or Win32 Disk Imager.

To receive updates for your FydeOS for PC installation, the “Automatically keep my FydeOS up to date” switch under Settings needs to be turned on.

There are 2 types of updates for FydeOS for PC:

  • Maintenance updates within the same milestone version, e.g. from FydeOS for PC v12.0 to v12.1. For this kind of updates, it will be delivered Over-the-Air. Your FydeOS will automatically check for updates like these and will perform the necessary actions to download and apply the patches. Once everything is done, you will be prompted to reboot your FydeOS to the latest version - you can do this at any time to your convenience.
  • Milestone updates from one major release to another, e.g. from FydeOS for PC v11.4 to v12.0. With FydeOS for PC, this kind of updates usually include Linux kernel version changes as well as modifications for other system libraries. Because we don’t know the exact make and model of your PC and test them before releasing, in the unlikely event, things may break for you. Therefore we have decided to hold-off all FydeOS for PC to automatically apply these updates. You have 2 options:
    • You can download a new copy of the latest FydeOS for PC image and perform the installation to your PC once again. You can also verify if all features that had worked previously will still work in the new release. However, your previous installed apps and your personal data will be lost.
    • We will also be providing the option for you to update your FydeOS for PC to the next major release version Over-the-Air whilst preserving your installed apps and personal data, at a small one-time fee. However, for the exact same reason as mentioned above, it’s recommended that you verify the working order of the new release on your device before proceeding.

The following is a quick FAQ for the update situation aiming to explain the rationale behind.

Q: Why charge a fee?

It’s pretty much the same reason as of why we launch the FydeOS subscription service for FydeOS for You releases. We hope to bring you the best FydeOS experience; This means that we are not interested in inserting advertisements, reselling your privacy, and other inelegant monetisation methods. At the same time, we believe that “donation” is a less controllable and somewhat unfair monetisation method. For the FydeOS update scenario, paying an one-time fee in exchange for the value-added services is undoubtedly the most direct and fair way.

Q: How much will I have to pay?

1.59 USD.

Q: What am I actually paying for?

You are mostly paying for the CDN traffic to transmit around 2GB data from our update server to your local machine, as well as the upkeep and maintenance of our support cloud services that cannot be replaced by Google’s offering.

Q: What if I don’t want to pay but I still want to use FydeOS for PC?

You don’t have to pay. You can keep using the current version by turning the “Automatically keep my FydeOS up to date” off. Or you can install the new version of FydeOS manually to your PC just like you did earlier.

Q: Will I have to pay again for each major release in the future if I want to update it over-the-air?


Q: Can I get a refund if I don’t like the update and wish to rollback to previous version?

No. You’ve already consumed the traffic.

Q: What happens if the update breaks my machine?

Sorry for that. It’s likely that your machine is too old and it’s somewhat not compatible with the update. You can rollback to the previous version(by selecting the alternative boot entry from the grub menu). To avoid awkwardness like this, it’s recommended that you verify the working order of the new major release on your PC by booting it on a USB device before you update it via OTA.

Through testing, we found that FydeOS booted from a mobile storage device will be greatly affected by performance. If you want to get the best experience, you can try to install FydeOS into the hard disk.

In addition, different storage media have a huge impact on the user experience.

We recommend using the following two brands of SD card and USB disk to program FydeOS. Of course, if you have a better choice, you can also recommend it to us.

  • SD card: Samsung EVO Plus 32GB SD card is a good choice with high cost performance
  • USB disk: SanDisk Extreme Pro USB 3.0

FydeOS comes with a browser extension called “FydeOS System Controller” by default (id: mofiofjpikncjaigmdlblhojbnkabako). This extension provides indispensable system functions for FydeOS and is an important part of FydeOS system.

Due to the particularity of the extension, there are many contents of the permission applied by the extension displayed on the extension detail page. But don’t worry, this plugin only provides services for FydeOS and its affiliated functions, and the interfaces involved in the bottom layer of the system are protected by solutions such as minijail (see Design Document), which guarantees the overall security of the system to the greatest extent.

In principle, the core version of FydeOS will maintain an interval of no more than 2 major versions with the upstream projects Chromium OS and the stable version of Google Chrome OS. For example, if the current stable version of Google Chrome OS is 70.0.*.*, In the worst case, FydeOS will remain at 68.0.*.*.

The small-scale fixes in the version will be released from time to time, and the patch team will be issued as soon as they encounter important security related issues.

Due to its closed design and lack of security, Adobe Flash Player has stopped updating and it is being eliminated by mainstream browsers. Starting from FydeOS v12, Adobe Flash Player is no longer provided by default. If you are still using a website or program that relies heavily on Flash technology, it is recommended that you replace it as soon as possible.

We can only guarantee that the operating system images with the FydeOS logo released from FydeOS official channels are safe, harmless, and comply with our “Privacy Protection Policy” and other relevant legal provisions on Internet security in the People’s Republic of China.

We cannot make any security guarantee for FydeOS-like operating system products, derivative products developed based on FydeOS technology, and products based on secondary development of open source projects that we maintain.

The Chromium OS open source project used by FydeOS places great emphasis on security. If you find that Chromium OS (and any underlying components that accompany it) contains significant or undisclosed security risks, please contact us in time.

Don’t worry, this is normal and you must not format these partitions, otherwise FydeOS will not work properly.

Thousands of applications in the FydeOS App Store are available for users to download. Since these apps all come from the Chrome Web Store, the automatic update of apps may not work properly in mainland China. Therefore, we have added a “check for updates” feature in the app store to help users migrate installed Chrome apps to FydeOS apps. There is only one difference between the two, namely the automatic updating URL of the application. After the migration is complete, you can enjoy the convenience of automatic application updates.

Please note that local files and preferences related to your app will not be synchronized after migration. Please make a backup in advance to avoid loss.

Yes. The specific content collected and the legal boundaries of our use and protection of users’ private information have been pointed out in detail in our Privacy Policy, it is recommended that you read it as soon as possible.

Before you start using FydeOS, we ask you to read and agree to our “Software License Agreement”. By continuing to use FydeOS and its affiliated products, you agree to our “Privacy Policy”.

The Trusted Platform Module(TPM) is usually a chip inside a computer to provide a root of trust for the computer. In order to ensure overall security, many features of FydeOS rely on the functions provided by a TPM chip. There are many different TPM chips and corresponding specifications on the market. Sometimes due to incompatibility, FydeOS for PC cannot initialise the TPM on your device, which will cause the following features to be unavailable:

  • <chrome://flags> shows blank
  • Unable to import custom certificate to Chromium browser
  • “About FydeOS” - “Additional details” - “Change channel” button is greyed out

If you experience the above issues, you can enable this “Bypass TPM checks” as a workaround to make your FydeOS a little bit more permissive and those features should then work.

Note: This is still an experimental features at its early stage, there are quite a few known glitches but we are working on them.

How to enable Android IME (custom keyboards) in desktop mode?

  1. Navigate to “FydeOS Settings” - “Experimental features” area, enable “Support for Android Input Method Editor(IME) in desktop mode (beta)” then click “Reboot now”. screenshot

  2. After reboot, install a custom Android keyboard or IME of your choosing. screenshot

  3. Launch your newly installed Android IME, agree on any permission requests. screenshot

  4. Navigate to Keyboard & input methods settings, click “Add input method”. screenshot

  5. Tick the box that indicates the Android IME or custom keyboard that you’ve just installed. screenshot

  6. Now you shall be able to choose your installed Android IME or custom keyboard and use it to type stuff. screenshot