Hey! I am using the one ui 3 in my tab a7, and its pretty good. There are some bugs and the software is using more ram. Buy the tab has not been lagging. I think you can update to one ui. The animations have changed and it feels like a modern ui.
Bro your tab has 1% charge in it. Don't try this next time atleast have a power of 80% battery then update otherwise don't update at this time because after 15% of charge your phone always try to hold the charge by powering the processor down a bit for battery longevity and software update pushes the processor to it's limit so that's why I told this for your safety not to do this next time 😅
Okay but always charge to 80% then update because in that time your processor shifts to big technology(the technology big.LlTTLE) 4 high core architecture and in that time your firmware have a less chance to get bugs okay 😊
