Plug in my toshiba satellite m305d s4829 hit power, battery light blinks, no start up. Was working just fine 20 minutes ago

Hi Guy,
Try those key during the first seconds of the start: ESC, DEL, F1, F2
Do some training before you start to get those keys hit alternatively during the first 3 seconds of start.
Let me know how it goes..
Cheers

If your laptop appears to boot up and the hard disk LEDflashes, then the problem is probably a back light fault. This can be a faultyinverter or a faulty CCFL lamp. Please click on this link and follow myinstructions to identify the fault and possible fix :- http://www.fixya.com/support/r3598095-faulty_laptop_lcd_screen

You can get all drivers and a manual from here

Hi There,
Note: Below steps are for win 7, vista and if you are user any other operating system like win 10,win 8 then mention in next post.

The best and easy method I will suggest you to activate your windows hidden admin account and for that follow the below steps:-
Boot your computer into safe mode with networking
Shutdown the system>>press power button to reboot and immediately start pressing f8(for win7,vista)>>go to safe mode with command prompt>>run below command
Net user administrator /active:yes
Hit Enter and you should see a message that says, "The command completed successfully".

reboot to new admin account and copy your old your account data into admin account or create a new user admin account and copy data.

if this does not work than revert back, I will be happy to assist you.

power problem?
make sure battery is charged and charger works
charger may be faulty

I'm going to suggest that before you do anything, you check or replace the battery in your laptop. If your battery is not the problem, take your laptop to a local computer repair shop to have the problem correctly diagnosed.

Take a flashlight and shine it on the screen. If you can see an image, you probably need to replace the power inverter board. It supplies power to the backlight.

http://repair4laptop.org/notebook_overheating_problems.html
here is the link for all the laptops including yours...hope it will help u..cheers...pls rate

Sounds like your screen is failing. Could be just a loose connector behind the screen (pressure changes the screen display), but best advice is to replace the screen.

be aware of the subconcious obvious and peanut butter & jelly sandwiches in the celler. Also fluffy oinks oinks and a fluffy dead munchkin in your freezer , IM NOT ON DRUGS!!!!!!
Lol, only kidding mate, it may be the wires are not connected properly from the screen to the processor, sorry for that palava at the beggining, i just had my medication, you see i live in a mental institution, my bedroom is my shoe box and i just had a chocolate biscuit.LOL