upgrade android

Android updates are incredibly device specific... so the obvious step would be the manufacturer of that device

verd said:

does a higher Android make a phone to be faster while using

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sometimes it does.. however newer versions are generally designed for newer devices, with bigger specs..

so running it on an older underspecced device may cause problems... and we're assuming the upgrade doesn't have problems which slows things down etc

There are 2 ways of upgrading. What device you have will determine whether either is available to you.

Official updates are provided by the manufacturer. If you bought a device that was originally locked to a service provider it's likely they modify the software, in which case they have to distribute updates. You download these over the air ("check for updates" in your settings, usually under "system" or "about"). If there isn't one available that probably means the manufacturer hasn't produced one for that phone. If you are still on 5.1 I expect this is the case.

The second way is via a "custom ROM". Software always has been built for the specific model, but for some models people will have built their own versions which you can download and install. For popular devices these may include later android releases than were officially provided for that device. To do this you first need to find out whether what you want exists for your device. If it does then you need to find a custom recovery for your device (must be for your exact model), unlock the bootloader, install the recovery and use that to install the ROM. As this is all device-specific nobody can help you without knowing exactly what phone you have. But you really should check whether a suitable ROM exists before worrying about the rest - for many models it will not.

If there is no official update and no suitable custom ROM that is it, unless you can learn to build your own ROM. There is no generic android update that can be installed on different devices (a statement that is true for other mobile platforms too).

Hi guys,
Please tell me if I will be able to upgrade android version from 2.2.1 to 2.3.5 on my Samsung Galaxy Ace in 2021 as well. Which way is the best? I want to do a factory reset. I suppose it sets back android to 2.2.1 also. My phone is 10 years old and now the android
version is 2.3.5.Thanks in advance!

See answer in one of the other old threads you posted this question to.