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It’s now time for me to wrap up the series and list the phones that impressed me the most in what was undoubtedly an eventful year. Most of the events weren’t of the good variety, granted, but when it comes to smartphone innovation things were going strong. In fact this smartphone addict found 2020 to be the best year in a good while when it comes to new releases.

The chip will power devices like Xiaomi's Mi 10 and Oppo's next high-end phone, two flagship devices expected to launch in the first quarter of 2020. Now playing: Watch this: Qualcomm unveils. Top comment ' I like the Micro SD slot.I had the note 8 and I upgraded to the note 10 and I thought I would absolutely love it like I did the note 8 but there's certain things about it that bother me and I've dropped my note 8 a million times in the screen is very durable I barely barely dropped it from a very low distance and the screen cracked even after I've the liquid glass on it so I'm. Qualcomm on Monday unveiled the world's first 5G wireless chip, the Snapdragon X50 modem. It's initially aimed at both phones and gear like home wireless networks. And it should be in devices in. The mobile phone system works like a two-way radio, and includes the individual handset and the base stations. Base station antennae are mounted high off the ground (on a tower or roof) to get the widest coverage. A mobile phone has a radio receiver and a transmitter.

This being the last entry in a fairly long series it will inevitability contain some familiar faces, but to try and mix things up a bit I’ll also rank the phones, starting with my number 6 and gradually climbing to the top. Oh, it’s a top 5 list? Okay then, an honorable mention.

Honorable mention: Huawei Mate 40 Pro

Oh what could have been - the Huawei Mate 40 Pro is such an awesome phone that had it not been for the lack of Google Play Services and limited chip supply it would have certainly became a holiday best-seller. It’s the fourth prettiest phone this year in my book, has an unbelievably good camera and an amazing screen. Obviously it also has the rest of the flagship bangs and whistles like excellent software, blazing fast performance and super rapid charging, but these three are where it stands out.

Most people won’t give the Mate 40 Pro a chance because we are creatures of habit and we hate getting used to new things. A lot of those people will be missing out however, because with the strides the App Gallery has made the phone is perfectly capable of serving them with a few minor adjustments.

5. Realme X50 Pro

It’s not just the Fall that brought some amazing phones - the early month gave us a few gems including my number 5 and what is the exception to the whole list. Whereas the other members are here courtesy of the amazing innovation they bring in one area or another, this one I chose because it serves as a wake up call for both makers and customers.

Armed with a great display, a versatile camera setup (both front and back) and the Snapdragon 865 this one proved that you can get everything you need (in fact more than most people will ever need) without paying four-digit prices. You don’t need to look further than the list of cons in our review to know that we were struggling to find anything wrong with the X50 Pro.

Of course, if you are a frequent reader of GSMArena to the extent that you have started following this series chances are you are not most people but rather a power user that is willing to pay top dollar as long as you get to experience cutting edge technology, so let’s move on.

4. Oppo Find X2 Pro

This one easily wins the award for most underrated flagship of the year - marrying the ColorOS that I properly love to amazing hardware and the third best design in business, courtesy of that vegan leather back the Find X2 Pro is the best phone most people have never heard of.

Insufficient brand recognition, minimal marketing campaign and limited availability made sure few would end up owning the X2 Pro in the west, but even though I’m not the gambling type I’m willing to bet a decent sum that people that actually ended up owning it properly love it.

3. Apple iPhone 12 mini

The iPhone 12 mini is another disruptor phone - it’s about challenging the trend of ever growing phones than the constantly increasing prices. Of course the fact that it’s the cheapest member of the iPhone 12 line doesn’t hurt, but it’s by far not the main thing the mini has going for it.

There’s just no phone on the market like it - a diminutive package that is actually a proper flagship. All it’s missing compared to a 12 Pro or a 12 Pro Max is a telephoto camera, but at 2x and 2.5x it’s not like those two can go particularly far anyway. Meanwhile the 12 mini fits in pockets where no other phone would squeeze and is so refreshingly light.

I can’t even count the less than amazing battery life against the 12 mini because as I said it’s so unique in the current market that there’s nothing that you can rightfully compare it to. Or is there? Let’s have a look at number 2.

2. Samsung Galaxy Z Flip

The most exciting bit about the tech scene in 2020 was the proper arrival of foldable phones. Granted, the original Z Fold and the Mate X came in 2019, but they always felt a bit more like polished prototypes than phones ready to serve you on a daily basis. The 2020 versions, on the other hand, are amazing - just look at the Galaxy Z Flip and tell me it’s not gorgeous. The only thing prettier than it is the Motorola Razr 5G, but that one has too many compromises elsewhere, which prevented it from making my list.

But it goes beyond looks - far beyond, in fact. The Z Flip folds to 87.4mm, which is just two thirds of the height of the iPhone 12 mini and it has about the same usable screen space as the 12 Pro Max when you factor in the notch.

The foldable design also enables some cool uses too - the hinge lets it stay semi-folded on a table lets the Z Flip act as its own tripod for selfies and video calls. And while the external screen is tiny it’s still good enough to let you take selfies with the main camera, leveraging its superior image quality. So at the end of the day the foldable screen phones not only let you have the best of both worlds, but they also add bits of their own.

I’ll also quickly touch on the subject of durability because it inevitably comes up when we are discussing foldables. People will point to how Zack from Jerryrigeverything scratched the screen by pushing his nail into it hard, while ignoring reports from actual users that it’s holding up perfectly fine after months of use. I’m not going argue with their coping mechanisms - as I said us people are creatures of habits and our initial response to rapid change is rejection.

To those more open minded I’ll just point out two things. First, the screen is actually at its most vulnerable not when in use but when carried around in pockets and purses and in those cases the Z Flip’s screen is actually much better protected than just about any other phone’s out there. Secondly, the phone is looking like new after spending a few months in the hands of my wife and if it can live through that it can probably live through anything.

1. Samsung Galaxy Z Fold2

After the previous entry my number one pick is unlikely to surprise anyone, even if you accidentally missed the huge spoiler that was the headline image.

The Galaxy Z Fold2 only edged the Z Flip because it fits better in my own use cases otherwise I rate the two and what they represent equally. They are two different takes on what you can achieve with the tech - a giant screen with unrivaled productivity and media consumption potential or a regular phone that folds to the size of powder box for storage.

Having used the Z Fold2 as my daily driver for the past couple of months I’m convinced of one thing - unless you absolutely must have the best camera setup around it represents better value than just about any other premium flagship. Even at MSRP it’s better to spend €2,000 on a truly exciting product than €1,500 on a boring Galaxy S21 or an iPhone 12 Pro Max. But right now deals in Europe lets you have one for €1,300, which makes it a no-brainer.

This piece ended up a bit longer than I initially imagined it and I bet a lot of you are already eager to hit the comments section and tell me how I’m oh-so-wrong and I should immediately take a lengthy vacation and then quit. The floor is now yours!

Reader comments

  • AnonD-923722
  • Kxf

I suggest you delete your post. Calling an country 'sucks' is an bad move

  • 3a{

That is the problem with these reviewers, they see so many phones nothing makes them excited and one phone which makes them excited they take it as granted ignoring the price. 2000 euro for phone is ridicouosly stupid 1300 euro? Still ridicolously st...

  • 3a{

Well when, your country sucks mostly it cost around 500 dollars which is amazing deal for what you get


For certain Universal Serial Bus (USB) devices, such as devices that are accessed by only a single application, you can install WinUSB (Winusb.sys) in the device's kernel-mode stack as the USB device's function driver instead of implementing a driver.

This topic contains these sections:

Automatic installation of WinUSB without an INF file

As an OEM or independent hardware vendor (IHV), you can build your device so that the Winusb.sys gets installed automatically on Windows 8 and later versions of the operating system. Such a device is called a WinUSB device and does not require you to write a custom INF file that references in-box Winusb.inf.

When you connect a WinUSB device, the system reads device information and loads Winusb.sys automatically.

For more information, see WinUSB Device.

Installing WinUSB by specifying the system-provided device class

When you connect your device, you might notice that Windows loads Winusb.sys automatically (if the IHV has defined the device as a WinUSB Device). Otherwise follow these instructions to load the driver:

  1. Plug in your device to the host system.
  2. Open Device Manager and locate the device.
  3. Select and hold (or right-click) the device and select Update driver software... from the context menu.
  4. In the wizard, select Browse my computer for driver software.
  5. Select Let me pick from a list of device drivers on my computer.
  6. From the list of device classes, select Universal Serial Bus devices.
  7. The wizard displays WinUsb Device. Select it to load the driver.

If Universal Serial Bus devices does not appear in the list of device classes, then you need to install the driver by using a custom INF.The preceding procedure does not add a device interface GUID for an app (UWP app or Windows desktop app) to access the device. You must add the GUID manually by following this procedure.

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  1. Load the driver as described in the preceding procedure.

  2. Generate a device interface GUID for your device, by using a tool such as guidgen.exe.

  3. Find the registry key for the device under this key:


  4. Under the Device Parameters key, add a String registry entry named DeviceInterfaceGUID or a Multi-String entry named DeviceInterfaceGUIDs. Set the value to the GUID you generated in step 2.

  5. Disconnect the device from the system and reconnect it to the same physical port.Note If you change the physical port then you must repeat steps 1 through 4.

Writing a custom INF for WinUSB installation


As part of the driver package, you provide an .inf file that installs Winusb.sys as the function driver for the USB device.

The following example .inf file shows WinUSB installation for most USB devices with some modifications, such as changing USB_Install in section names to an appropriate DDInstall value. You should also change the version, manufacturer, and model sections as necessary. For example, provide an appropriate manufacture's name, the name of your signed catalog file, the correct device class, and the vendor identifier (VID) and product identifier (PID) for the device.

Also notice that the setup class is set to 'USBDevice'. Vendors can use the 'USBDevice' setup class for devices that do not belong to another class and are not USB host controllers or hubs.

If you are installing WinUSB as the function driver for one of the functions in a USB composite device, you must provide the hardware ID that is associated with the function, in the INF. You can obtain the hardware ID for the function from the properties of the devnode in Device Manager. The hardware ID string format is 'USBVID_vvvv&PID_pppp'.

The following INF installs WinUSB as the OSR USB FX2 board's function driver on a x64-based system.

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Starting in Windows 10, version 1709, the Windows Driver Kit provides InfVerif.exe that you can use to test a driver INF file to make sure there are no syntax issues and the INF file is universal. We recommened that you provide a universal INF. For more information, see Using a Universal INF File.

Only include a ClassInstall32 section in a device INF file to install a new custom device setup class. INF files for devices in an installed class, whether a system-supplied device setup class or a custom class, must not include a ClassInstall32 section.

Except for device-specific values and several issues that are noted in the following list, you can use these sections and directives to install WinUSB for any USB device. These list items describe the Includes and Directives in the preceding .inf file.

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  • USB_Install: The Include and Needs directives in the USB_Install section are required for installing WinUSB. You should not modify these directives.

  • USB_Install.Services: The Include directive in the USB_Install.Services section includes the system-supplied .inf for WinUSB (WinUSB.inf). This .inf file is installed by the WinUSB co-installer if it isn't already on the target system. The Needs directive specifies the section within WinUSB.inf that contains information required to install Winusb.sys as the device's function driver. You should not modify these directives.Note Because Windows XP doesn't provide WinUSB.inf, the file must either be copied to Windows XP systems by the co-installer, or you should provide a separate decorated section for Windows XP.

  • USB_Install.HW: This section is the key in the .inf file. It specifies the device interface globally unique identifier (GUID) for your device. The AddReg directive sets the specified interface GUID in a standard registry value. When Winusb.sys is loaded as the device's function driver, it reads the registry value DeviceInterfaceGUIDs key and uses the specified GUID to represent the device interface. You should replace the GUID in this example with one that you create specifically for your device. If the protocols for the device change, create a new device interface GUID.

    Note User-mode software must call SetupDiGetClassDevs to enumerate the registered device interfaces that are associated with one of the device interface classes specified under the DeviceInterfaceGUIDs key. SetupDiGetClassDevs returns the device handle for the device that the user-mode software must then pass to the WinUsb_Initialize routine to obtain a WinUSB handle for the device interface. For more info about these routines, see How to Access a USB Device by Using WinUSB Functions.

The following INF installs WinUSB as the OSR USB FX2 board's function driver on a x64-based system. The example shows INF with WDF coinstallers.

  • USB_Install.CoInstallers: This section, which includes the referenced AddReg and CopyFiles sections, contains data and instructions to install the WinUSB and KMDF co-installers and associate them with the device. Most USB devices can use these sections and directives without modification.

  • The x86-based and x64-based versions of Windows have separate co-installers.

    Note Each co-installer has free and checked versions. Use the free version to install WinUSB on free builds of Windows, including all retail versions. Use the checked version (with the '_chk' suffix) to install WinUSB on checked builds of Windows.

Each time Winusb.sys loads, it registers a device interface that has the device interface classes that are specified in the registry under the DeviceInterfaceGUIDs key.

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Note If you use the redistributable WinUSB package for Windows XP or Windows Server 2003, make sure that you don't uninstall WinUSB in your uninstall packages. Other USB devices might be using WinUSB, so its binaries must remain in the shared folder.

How to create a driver package that installs Winusb.sys

To use WinUSB as the device's function driver, you create a driver package. The driver package must contain these files:

  • WinUSB co-installer (Winusbcoinstaller.dll)
  • KMDF co-installer (WdfcoinstallerXXX.dll)
  • An .inf file that installs Winusb.sys as the device's function driver. For more information, see Writing an .Inf File for WinUSB Installation.
  • A signed catalog file for the package. This file is required to install WinUSB on x64 versions of Windows starting with Vista.

Note Make sure that the driver package contents meet these requirements:

  • The KMDF and WinUSB co-installer files must be obtained from the same version of the Windows Driver Kit (WDK).
  • The co-installer files must be obtained from the latest version of the WDK, so that the driver supports all the latest Windows releases.
  • The contents of the driver package must be digitally signed with a Winqual release signature. For more info about how to create and test signed catalog files, see Kernel-Mode Code Signing Walkthrough on the Windows Dev Center - Hardware site.

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  1. Download the Windows Driver Kit (WDK) and install it.

  2. Create a driver package folder on the machine that the USB device is connected to. For example, c:UsbDevice.

  3. Copy the WinUSB co-installer (WinusbcoinstallerX.dll) from the WinDDKBuildNumberredistwinusb folder to the driver package folder.

    The WinUSB co-installer (Winusbcoinstaller.dll) installs WinUSB on the target system, if necessary. The WDK includes three versions of the co-installer depending on the system architecture: x86-based, x64-based, and Itanium-based systems. They are all named WinusbcoinstallerX.dll and are located in the appropriate subdirectory in the WinDDKBuildNumberredistwinusb folder.

  4. Copy the KMDF co-installer (WdfcoinstallerXXX.dll) from the WinDDKBuildNumberredistwdf folder to the driver package folder.

    The KMDF co-installer (WdfcoinstallerXXX.dll) installs the correct version of KMDF on the target system, if necessary. The version of WinUSB co-installer must match the KMDF co-installer because KMDF-based client drivers, such as Winusb.sys, require the corresponding version of the KMDF framework to be installed properly on the system. For example, Winusbcoinstaller2.dll requires KMDF version 1.9, which is installed by Wdfcoinstaller01009.dll. The x86 and x64 versions of WdfcoinstallerXXX.dll are included with the WDK under the WinDDKBuildNumberredistwdf folder. The following table shows the WinUSB co-installer and the associated KMDF co-installer to use on the target system.

    Use this table to determine the WinUSB co-installer and the associated KMDF co-installer.

    WinUSB co-installerKMDF library versionKMDF co-installer
    Winusbcoinstaller.dllRequires KMDF version 1.5 or later




    Winusbcoinstaller2.dllRequires KMDF version 1.9 or laterWdfcoinstaller01009.dll
    Winusbcoinstaller2.dllRequires KMDF version 1.11 or laterWdfCoInstaller01011.dll
  5. Write an .inf file that installs Winusb.sys as the function driver for the USB device.

  6. Create a signed catalog file for the package. This file is required to install WinUSB on x64 versions of Windows.

  7. Attach the USB device to your computer.

  8. Open Device Manager to install the driver. Follow the instructions on the Update Driver Software wizard and choose manual installation. You will need to provide the location of the driver package folder to complete the installation.

Related topics

WinUSB Architecture and Modules
Choosing a driver model for developing a USB client driver
How to Access a USB Device by Using WinUSB Functions
WinUSB Power Management
WinUSB Functions for Pipe Policy Modification
WinUSB Functions