Why does Android OS need custom ROMs for OS upgrades?

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updates rom-flashing custom-roms lg lg-optimus-l5

                          I have a discontinued LG L5 E455 Android phone that came with Android 4.1.2 OS.

I am forced to upgrade the OS because most of the apps I need to install are not compatible with this version of OS, according to Google Play.

I tried to upgrade the OS through the update option in the Android interface, it did some magic but the Android version is still the same.

I could not find any LineageOS ROM that was created for this phone.

* Is it only possible to upgrade the Android OS by a custom ROM? If so, why?

* Is it possible to install the official Google versions?

* Why does it not work like in Linux distributions that can be installed on almost any PC?

Asked by rapt (121 rep)

Jan 9, 2019, 10:02 PM
Last activity: Jan 9, 2019, 10:15 PM

Why does Android OS need custom ROMs for OS upgrades?

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