PLEASE PLEASE PLEASE help me !! thank youu

[RobbieSL45]

hi

I have a siemens sl45i.

the phone it self is okay. However when its on the battery inderacter move up and down like the phone it on charge.
but it's noTT!

I would Like to Know how can i fix this problem.
please help me.
thank you to every one who offers help to me

[gorandj]

open your phone it`s hardware error probably

[RobbieSL45]

yes i have. But i am not sure what to look for inside the phone. any other advice at all.
Thank you