Hardware plroblem caused battery drain
What is the Hardware problems
Cause increase battery life .?
Only hardware problem.
If your battery drains quick try replacing the battery.
If that doesn't work and it's the same then your U2 IC probably needs replacing
Hardware problem is when something is wrong with the inside of the phone (any part or logic board).
If you have problem be more specific what is the problem so we can help.
Is it your battery drain quick? And someone told you is hardware problem?
Could be but we need to find out if it is not just the use of the phone draining the battery or you may have bad battery.