Slow charging, random screen wake ups and USB connections not working. What could the problem be?

[AC Question]

Slow charging, random screen wake ups and USB connections not working.

My phone, Asus Zenfone 5 (A501CG), takes too much of time to charge (6-7 hours).
Also, the screen wakes up randomly every 5 seconds (approx.).
The phone doesn't connect to a PC (it's not recognized) and OTG doesn't work either.
In Settings, it shows that the phone is charging on USB even when it's charging on AC.
It happens in safe mode too.
What can be issue?
Can a faulty micro-USB port cause this?
Please help me.
This has rendered my phone useless.

 

[B. Diddy]

Re: Slow charging, random screen wake ups and USB connections not working.

Welcome to Android Central! Try wiping the cache partition: [TUTORIAL] Zenfone 5 Cache Wipe Partition..-ZenFone5

 

[iScreamSoda]

Re: Slow charging, random screen wake ups and USB connections not working.

Same problem here too D:

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