Is there any way for me to revert to a previous version of my OS?

[Alishibaz]

Recently, I upgraded to the most recent version of the OS and I'm not liking it.

The previous version made the phone look so beautiful. But in the new version, all the menus on the phone are in weird colors it just looks weird.

Also when I tap and hold on an icon in order to move it (like it used to be in the older version), it no longer vibrates and moves to let me know it can be moved. Instead, if there is a help screen for the function the icon represents, it just shows the help screen. So many other unpleasant things.

My new Android version is 5.0.1. I just downloaded and upgraded my phone a day or two ago.

Is there any way I can revert to the previous version?

 

[Rukbat]

In the way you mean it - by uninstalling the update - no. You have to flash the 5.0 or 4.4.4 (or 4.4.2 if you want to root easily and don't need OpenSSL security on your phone) ROM. That means backing up all your data first (see Backing up an Android Device) because flashing a ROM gives you an out-of-the-box phone - no pictures, no accounts, no music - nothing.

And, if the phone is an AT&T or Verizon phone, you can't go back further than 5.0. There's a "major version counter" that can't be reset. (It's a set of electronic fuses. If you flash Jellybean, it blows fuses up to 4.3, so you can't flash 4.2. If you install Lollipop it blows fuses up to 5, so you can't flash 4.anything. They can't be "unblown", so AT&T and Verizon users are stuck if they update a major version.)