Huawei Y9 (2019)
If you want to delete the Google account from a Y9 (2019) either to sell your terminal, give it to a relative or friend, recycle it or if you have decided to switch to another Google account, you can do so by following the steps indicated continuation.
When delete the Google account from Y9 (2019) we deactivate the FRP (Factory Reset Protection) of the operating system Android 8.1 (Oreo), this is a protection that links the Huawei Y9 (2019) to a Google account so that when it is rebooted or blocked due to loss or theft, ask for the Google account username and password.
1- First step:
To delete the Google account go to the settings of your Huawei, it is the icon of the gear wheel, the settings icon should be on the home screen or in the phone menu, you can access the main menu by dragging your finger from the bottom to the top of the screen.
2- Second step:
Look for the section called "Google" or "Accounts".
3- Third step:
The accounts linked to this Huawei Y9 (2019) will appear, delete the desired account.
After you delete the account, you may want to reset the Y9 (2019) to its factory state and thus eliminate all data from the Huawei, to do this from "Settings" click on "System", then "Reset settings", then "Factory data reset" and finally "Delete all".
This is the method for unlink Google account from Huawei Y9 (2019) and erase all your data from the system settings.
Another more drastic method to erase the Google account in a Huawei Y9 (2019) would be doing a hard reset or factory reset. It is a drastic method because in addition to deleting the Google account it resets the Huawei to its factory state and has to re-optimize all applications which takes more time than a simple deletion of Google account.
About the device:
Huawei Y9 (2019) is a device with a dimensions of 162.4 x 77.1 x 8.1 mm (6.39 x 3.04 x 0.32 in), a weight of 173 grams, a screen size of 6.5 inches, 103.7 cm2 (~82.8% screen-to-body ratio) and a screen resolution of 1080 x 2340 pixels, 19.5:9 ratio (~396 ppi density).
It has a processor Octa-core (4x2.2 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53), a graphics card Mali-G51 MP4, a RAM memory 4 GB o 6 GB RAM and an internal memory of 128 GB, 6 GB RAM or 64 GB, 4 GB RAM.
The Huawei Y9 (2019) it comes from the factory with the operating system Android 8.1 (Oreo)