Blinking power supply with pattern and won'y start..

Perhaps remove the multi-bay battery, and let main battery charge all the way. Then reattach multi-bay battery, and see if it's recognized.
(Will charge)

That is AC adapter (Charger) removed, then remove multi-bay battery.
Plug AC adapter back into laptop, THEN plug AC adapter into power.

[You do Not want to unplug an AC adapter from a laptop, with the AC adapter plugged into power. Could be a power surge/voltage spike. Unplug AC adapter from power, when plugging into laptop, or unplugging from laptop ]

Main battery charged, unplug power to AC adapter, unplug AC adapter from laptop. Plug multi-bay battery in, then AC adapter.
(Then plug AC adapter into power)

Post back in a Comment.

Regards,
joecoolvette

Hello, If the battery won't charge and the laptop won't turn on but the ac adapter works with other laptops, then the problem is the port where you plugin the ac adapter. Some of the laptops has it built in to the motherboard. So you might need to have it repaired by a technician. Or if the laptop is still in warranty, you might need to send it to the manufacturer to have it repaired or replaced. But if the laptop works without the battery, or it will turn on but the battery indicator is not lighting up, you're facing one of these problems. 1. The battery itself is dead. 2. the battery bay is loose 3. the battery itself is loose Hope this helps

http://www.chargerbuy.com/laptop-ac-adapter/toshiba-ac-adapters.html

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If the Power supply LED dims and flickers its either your motherboard circuit has been cut or there is a short in the laptop. The AC adapter is not the cause.

Try this:
Remove the battery, then press power button to drain all the current, then re-install battery and plug to adapter.

If that doesn't work, then it's most likely the motherboard.

try it with the AC Adapter plugged in but without the battery. If the battery is too bad, it can prevent even the AC adapter from powering the laptop.

Try removing the battery and then connecting the power adapter and see if the laptop will start normally with no battery installed - if it does, then you should get a replacement battery.

First try using a different ac adapter/power cord.If after trying that it won't power up it only leaves the power board where the power button is located may be bad or the power jack where the ac adapter/power cord plugs into the laptop may be bad.Alot of the time when the ac adapter/power cord gets weak or stops working at all will cause it to not charge or not turn on even plugged in.

You've to replace the ac adapter, if it's brick doesn't get warm or LED does not glow on Power Jack on the laptop. offcourse, check with the wall different sockets

power jack can also be loose. so jiggle the cable to find out.

if notebook is getting power, you can remove the battery, ac adapter, hold and keeep pressing poer button for a minute, then, turn it on.

finally, you can take out hdd and ram, put them back again and turn on the laptop. hope it will help

Hard drive needs replacing.

Laptop batteries power a laptop when it is not connected to an electrical outlet. If the laptop battery fails to charge when the laptop is plugged into an electrical outlet, the battery is likely dead and needs to be replaced. Unfortunately there is no way to fix a dead battery. However, while a dead battery is the likely cause, it is not the only cause. The AC adapter may be broken, in which case the battery won't charge, or the battery contacts may be dirty and need cleaning. Prior to replacing the battery, perform simple tasks to ensure a dead battery is the cause of the problems.

1.Power down the laptop. Gently pull the AC adapter from the side of the laptop for removal.

2.Place the laptop in front of you, bottom side up. Locate the battery release mechanism. This can be a button that slides or needs to be pushed to unlock or release the laptop battery from the housing unit. Press or slide the mechanism. Slide or lift the battery from the battery bay for removal.

3.Insert the AC adapter into the side of the laptop. Power on the laptop. If the laptop does not power on, ensure the AC adapter is securely plugged into a working electrical outlet. If the electrical outlet is working and the laptop won't power on, the AC adapter is not properly working and needs to be replaced. Remove the AC adapter.

4.Dip a cotton swab in a small amount of rubbing alcohol. The cotton swab should be damp, not dripping wet. Lightly rub the dampened cotton swab onto the battery contacts and battery bay contacts to remove dust, buildup and grime. Allow the contacts to air dry.

5.Align the battery over the battery bay. Either press or slide into place. A clicking or snapping noise produced from the locking mechanism will confirm the laptop battery is securely locked into place.

6.Install the AC adapter. Allow the AC adapter to fully charge the battery for 8 hours.

7.Remove the AC adapter. Power on the laptop. If the laptop does not power on, the battery needs to be replaced.