android os drain battery

[hector121]

After the last update I notice that my battery drain so fast

l found on battery usage that android os drain more than 50% of my battery

I used gram program to know what exactly causes this issue

I found that kernel drains my battery

I connected the device to my pc and used SUS to repair it but nothing happened after the repair

Same issue remains

stamina mode doesn't make any changes

[hector121]

i just want to know if that is normal with the last update and it will be fixed in the next update or some thing is wrong with my android system ?

i found this issue common with other devices but not with xperia z

i went today to sony service center and they told me you have to leave your mobile to instal a new software

but if that is common with other user ill wait for the next update

please i need a solution and forgive me for my poor english

[Uliwooly · Accepted solution]

try this

repair your phone once more, but this time do NOT sync any account, do NOT install any app, uninstall mcafee and use your phone for few hours, check if the same battery drain continue.

[hector121]

i already did what you said accept removing mcafee

[hector121]

ill repair it and ill remove mcafee this time

ill replay after testing this try

[Uliwooly]

let us know how it goes

[vkmxpz85]

i am having xperia Z & past few hours i have updated from 10.1.A.1.350 to 10.1.A.1.434....one thing i observed battery drains too fast.....previously not happening.....