*#0228# what is this...???

[Jewel2107]

*#0228# what is this...???

[Anonymous · Accepted solution]

this used to see battery status and to reset the fuel  gauge of the battery 

also mark my answer as solution please 

[RakeshKuParida]

@tomadjerrymar what if I reset it ?

[Anonymous]

if you reset it the whole battery usage will be gone from the battery usage page that's what it will happen 

[Anonymous]

basically you won't be able to see the battery usage history but in my opinion, don't  do it until you see any problem with the battery it's very dangerous if you do it as battery algorithm will give inaccurate information about the battery 

[Iohanis_203]

Am nevoie de ajutor! Nu știam ce făcea acest cod și am dat recalibrarea fără să știu ce fac. Acum bateria nu se încarcă mai mult de 75%. Ce trebuie să fac? Ajutor!!

[Razsp]

Enter *#0228# in to the phone dialer and you'll see the change in voltage when you charge it.

[Manjuked]

it is a calibration code for battery charging, take care

[9090abc]

I have done it so many times