[Huawei P10 Plus Guides, News, & Discussion] huaweiailesitr:
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It all started with preparing the P10 Plus to install HarmonyOS. But by an error we have corrupted the device irreversibly. Similarly, if you have broken your P10 Plus while downgrading or updating software, we have good news for you, you can bring your P10 Plus back to life at no cost. Tested and approved!

Let's get started quickly.

First of all, you need to connect your device to your computer to detect the problem. If your device shows as USB_SER in device manager, the steps are even simpler for you. Because USB_SER mode is a mode that you can think of as an emergency recovery mode, created for the purpose of installing recovery software on your device. If your phone switches to this mode as soon as you plug the cable into this mode, it will be enough to follow a few steps. But if you don't get any response when you connect your phone to the computer, we're sorry, you need to turn on your device.

Before proceeding with all these steps, we would like you to know that you are responsible for any problems that may happen to you on the way to unlocking your device, that the Huawei Family is only the guide provider and will not take any responsibility. All these steps will cause your device to be considered within the scope of "unauthorized intervention" if it has a warranty, and we want you to know that you cannot claim any rights in any problem that may occur.

We will continue to explain the hard way, because many devices cannot enter emergency recovery mode on their own.

The list of needs for those who will perform the transaction the hard way is as follows:

- A conductive cable (paper clip, etc.) that will allow you to put your device in emergency recovery mode.

- Thin Phillips screwdriver

- Screen removal vacuum and pick to quickly remove the screen

- Archive with all the files that will bring your device back to life

We will continue to explain the steps, assuming you have removed the screen, you can learn this type of removal from the internet professionally.

When you remove your device until the motherboard is visible, disconnect the battery for your safety, then remove the intermediary cable that connects the lower board to the motherboard, you will see the emergency rescue (testpoint point). Connecting this point takes some patience and experience because you also have to reattach the lower board cable to the motherboard. We used T-7000, which is a screen adhesive, to provide this process. After gluing one end of the conductive cable to the point indicated in the photo with a T-7000 style easy-release adhesive as a tiny dot, attach the connecting cable to the motherboard. Connect your phone to your computer while touching the other end of the conductive cable to one of the metal plates on the motherboard. Then if you did everything right, your phone will appear as USB_SER on your computer. This is a sign that you are approaching the recovery stage.

When it shows as USB_SER, there is a small step you need to take, you need to disable the driver signature verification, otherwise the driver for the emergency mode will not be installed. There are variable steps you need to take to accomplish this, depending on the version of Windows you have.

Windows 7: Type cmd in search and right click to run as administrator, then execute bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS and bcdedit.exe -set TESTSIGNING ON commands. Then restart your computer.

Windows 8/8.1/10: Settings > Update & security > Recovery > Advanced reboot > Troubleshoot > Advanced > Change startup settings > Press 7 on the keyboard. Driver signature verification will be disabled.

11: Settings > Recovery > Advanced reboot > Troubleshoot > Advanced > Change startup settings > Press 7 on the keyboard. Driver signature verification will be disabled.

You can now continue with all these steps by installing the driver for your device. Find the device manager, select the device named USB_SER, right-click it, then click the update driver software button. Then click the browse drivers button on my computer, select the "usb_serx64" folder in the archive we shared with you, and click next. When prompted to install driver, click Install this driver software anyway button. The operation is successful and USB_SER will now appear as Huawei USB COM PORT.

Again, run the program called PotatoNV, which is in the archive. Select "Kirin 960" in the Bootloader section of the program. Then “Start!” Press the button. Disconnect your phone from the computer when the download line at the bottom is full. Then close the PotatoNV program, your device will be in fastboot mode:

We can interpret this mode as vegetative life, if you restart your device without taking any action, the device will enter the emergency recovery mode again. Since our goal is to recover the device, let's continue!

Reconnect your phone to the computer and run the command line named ”flash_1” in the unbrickfw folder in the archive. Recovery images will begin to install on your device. This whole process can take about 15 minutes. When the installation process is completed, your device will automatically reboot and you will get rid of all this torture. As soon as you see the Huawei logo, all the processes are complete.

That's it!

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