If done properly, your Nokia 5.1 Plus shall be running on the Android 10 April 2020 security patch update. Instructions and software for flashing any firmware downloaded from here are included in the firmware download page. Some custom ROMs (like Pixel Experience and Evolution X) come with GApps pre-installed. In such cases, you don’t have to flash the GApps file separately.
If you have a popular phone with an active community on the XDA Developers forums, then this won’t be a problem. If you own a lesser-known device, a stock ROM may be harder to find. To go the whole way, you need to unroot your phone as well.
So if you want to be able to sign in with your Google account and use Google’s services like Sync, Play Store, Gmail, Drive, etc., you’ll need to install a separate GApps package. You can refer to our guide on finding the right Gapps package and download one that’s appropriate for you. Download and transfer it to your phone’s internal storage. You can also install them right from your PC/Mac if you opt for the adb sideload method.
With the entry of a new generation of mobile telephony, the previous models are often forgotten, even though they really have some useful life. When people say they’re flashing a new ROM, it means they are flashing a new version of the firmware onto their phone – the two terms are interchangeable.
It has enough power to keep most casual users happy, supports 5G, and is one of the best phones with a near-stock Android experience. For example, your phone will be stuck or hang on the logo.