Satellite A300 restarts when I connect AC adapter / CC

I have Toshiba Satellite A300, and there is problem, as soon as I connect my adapter to my labtob it restarts directry, and there is no problem when I connect my adapter for my labtob in offline or even in safe mode.
I tried to update the BIOS but I can't caudln because it is difficult to udate BIOS without plugging your power adapter...

something else, I changed my power adapter with another, but nothing has changed and I corrected my original vista OS labtob, but also nothing has changed

can any body help my out to solve this problem

awaiting your response

With or without the battery, the laptop must run stable on the sector
If it s not the case, it is possible that your motherboard is affected but I hope that's not because it would be the worst case :(

Tags: Toshiba

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