Originally Posted by bachelora2001
My S3 had a swollen battery which worked well no problem. Few days ago I was browsing on the mobile while it was charging on electric outlet. The battery power indicator showed zero percent and the mobile went off. Since than it does not go into Recovery mode nor Download mode with a new battery. The new battery is good it works on another s3. The mobile powers on without the power button being pressed when the new battery is inserted into the mobile. The white Samsung sign appears than the screen blanks. When trying to get into recovery mode blue words appear on the upper left than the screen blanks. In Recovery mode the green android man appears it blanks out too.
What can I do to fix the problem? How can I get it into Recovery Mode? I think the swollen battery had something to do with it when the battery hit zero percent.
The problem is in your handset now.
Normally it is designed to wait for a power button press after the battery goes in.
If yours gets turned on by battery insertion there is a hardware problem in the phone now.
The power button could be sticky
The button might be loose (no spring)
a loose particle could be shorting the power-on circuit internally
stray electrical voltage requiring complete discharge could be shorting it.
If you are not a DIY you will need someone to disassemble and air dust the phone.
Power button replacement is another option but may not be necessary.