How many times have you had a good Android smartphone or tablet in your hands which lacked some features present on the latest models? You will surely have had the idea that by updating it you could have obtained some more functionality or (at most) the resolution to some problem that the operating system has brought since leaving the factory. In this guide I will show you exactly this! You will see what they are the steps to follow to update Android on practically any device.
You will see how to update Android using the update system integrated in the device and, if this does not work or there is no update, how to update Android using a Custom ROM (an unofficial custom operating system).
Official update system
The first method you absolutely must try to update Android is to use the update system integrated in the smartphone or tablet.
To get the latest Android update, search within the menu Settings your device's voice Phone info; here you will find the entry System updates (or similar), present both as a dedicated key and as a menu item (depending on the model and brand of the device).
By tapping on this item you will be able to update Android in most scenarios. Not all devices for may have an update available; perhaps it has already been downloaded and installed or the manufacturer has not deemed it appropriate to release further updates.
Download an official ROM
Another method to update Android is to use the ROM files available at the manufacturer's site. In this case it will be necessary to use the tools made available by the manufacturer to update the device.
Below you can find all the links of the manufacturers from which you can recover the official ROMs for most devices.
Just search for the specific ROM for your smartphone and download it (if available). Is your smartphone not of the manufacturers mentioned above? You can search on Google based on your model and your manufacturer followed by the word ROM, for example:
Once you download the ROM to update Android, you will need to use one of the following tools to insert it into the device.
Update Android with unofficial ROMs
Cannot update your Android device because the manufacturer has not released any updates? You can bring a "breath of fresh air" to your device by installing one of the unofficial ROMs available on the Internet. The most famous are the following.
Visit one of the sites I linked to above to find the unofficial ROM best suited to your device. LineageOS the heir of the old CyanogenMod, therefore maintains the great compatibility that this ROM had for a really high number of devices (hard not to find a ROM!). If you don't know how to install LineageOS on your device, follow this guide:
LINK | How to install Lineage OS on all Android devices
For example if you have a Samsung S7 and want to update Android you can download the optimized version of LineageOS for this device by scrolling the side list until you find the make and model.
Download one of the files present to recover the ROM. In order to install it on your device you will need to follow the following procedure:
The steps are all in all simple if you follow the guides, the only real difficulty can arise in unlocking the bootloader. Below you can find all the guides on the site to unlock the bootloader on many devices.
LINK | Bootloader unlock guides
On this site we talked abundantly about how an android update on smartphones and tablets and in particular on some specific devices. So it is better to take a look at this guide for example or find out if we have already dealt with the update of your device.