How can I go back to Kitkat after updating to Lollipop?

lpelullo

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Oct 23, 2014
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The phone is a Sony Xperia T2 Ultra. It's unlocked. Ever since updating to Lollipop my phone is AWFUL. It randomly stops working, when playing video it doesn't stop if I try to stop it. It takes forever to turn off and back on. The camera operation is awful too. I need to go back to kitkat. How can I do this? I also have an Oppo with beta software so I have SOME experience installing other OSs, but no clue how to do it on my Sony.
 

hallux

Q&A Team
Jul 7, 2013
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Have you first tried a cache partition wipe or factory data reset? I understand that it shouldn't be expected that those be done but some phones have needed it.
 

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