Well the battery is way better on Nougat and NOT
much better I would say.

---------- Post added at 11:53 ---------- Previous post was at 11:51 ----------
@nandakis4 Thanks bro! So this zip is failing on you, rebooting on patching boot image? What is the path where the phone saves downloaded OTAs?
Hi, thanks for being here..
i searched for path, but didnt get it, as i am not rooted..
i connected my phone to PC , checked LOG with adb command , and found the URL which i posted above.. i tried flashing with Stock recovery

but couldnt get success, so tried TWRP by removing some lines( GETPROP lines in updater script) and made a flashableZIP but its also hanging at the end

,( patching boot image section)

but it booted fine and now i am on s233 version..
Update: i tried wiping cache, dalvik, data and flashed the zip again.. now it flashed fine .. God knows whats wrong with my phone

so there is something wrong at the