Toshiba satellite A25 S207 not accepting DVD writer initiating power and switching off during booting

from this link you can choose your model laptop and download drivers

you may need new ones the simply wear out and lose their ability to perform after some time they are simple to change and shouldnt be overly expensive ok :) good luck and have a swell day :)

It should work .

Hello sir, the reasons why your power supply wont turn on;

1. It detected an overload, it is called a switching power supply, if it detects shorts, or something wrong on the mainboard it will not start.
2. It cannot supply the right amount of current, the power supply is defective.

I had that symptom on my compaq armada, I dissassemble it part by part, then slowly reassemble it, piece by piece making sure all contacts are good and clean. As i power on the unit it turns on without a problem. to do this you should know a little thing about laptops/PCs. hope this helps

The sensor that reports the cpu temperature could be faulty or could be fan loose from cpu or faulty motherboard .

Ron from your post it isn't clear what your actual problem is. Can you be more specific

Replace Battery.

on the left side is an on and off button,is it on. what is the name of your router and adapter if is used.

It depends on the brand of your BIOS. Try these two steps, Press F2 upon boot up or press ESC and F1 upon boot up.

That flashing light indicates that the laptop is not getting power, check and test your power cord. That light should be light solid when plugged in. good Luck