Solved Toshiba M305D stuck in a power cycle. Please help.

Hewlett-packard / Hp pavilion entertainment...
June 12, 2016 at 14:50:23
Specs: Windows 10, Intel Core 2 Duo T9900 SLGEE / 16GB Ram
My mother's laptop, Toshiba Satellite M305D-S4830, keeps going through a power cycle like a skipping CD, or Record. There was another issue that I recently fixed with it the week before. The screen would flicker when touched (common with these). I replaced the LCD ribbon and problem solved. At first, I thought it was the hdd going bad and just corrupting the boot cycle. When I put in the Windows 7 install disc it was doing the same thing. Then I removed the hdd, and still it is doing the same cycle. It will not load at all. It never makes it to the manufacturers logo or the BIOS. So now, I have a few hypothesis's from some more general reading. 1.) I screwed something up installing the LCD ribbon. The power jack on the motherboard, or crossed a circuit with a static sensitive part. No spark or charge heard or felt 2.) The BIOS chip is bad, which means the motherboard is bad. And 3.) I have no idea. I am not concerned with having to re-solder the power jack as I have read how to fix that common issue with these laptops as well. Please help!! Any suggestions and ideas are greatly appreciated. Thanks in advanced.

I don't need to be right, but I am never wrong.


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#1
June 12, 2016 at 15:29:02
Was this latest issue "Immediately" after you fixed the ribbon cable?

As you don't even get to the manufacturers logo or BIOS it does read like a motherboard issue or something awry with the wiring.

Always pop back and let us know the outcome - thanks


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#2
June 12, 2016 at 15:38:47
No, everything worked fine for the following week. I am not entirely sure if it is the wiring yet. The battery is bad and doesn't hold a charge. I have another one on the way to test if it is a faulty power supply.

I don't need to be right, but I am never wrong.


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#3
June 12, 2016 at 15:41:00
✔ Best Answer
You could try it with the battery removed, just in case the faulty battery is draining the power.

Always pop back and let us know the outcome - thanks


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#4
June 12, 2016 at 15:55:59
Yes, the battery was removed as well.

I don't need to be right, but I am never wrong.


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#5
August 5, 2016 at 17:48:31
Update: I have figured out that it was a bad ribbon from the thermal media keys to the mother board. It had a knick that was causing a short in the system. Replaced it and It works like it should again. Thanks for all the help.

I don't need to be right, but I am never wrong.


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#6
August 5, 2016 at 18:03:21
Good to hear and thanks for letting us know.

message edited by Derek


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