This is a note for anyone who is unfortunate enough to run into the same problem I did with the Toshiba Satellite P55t-A5202 touchscreen laptop.
Symptoms: After a month or two of flawless operation, the laptop suddenly fails to boot. The power button elicits absolutely no response. The battery light is on, but it glows amber and doesn’t flash. Nothing in the user guide covers this situation, because everything it talks about involves a flashing battery light. A call to technical support also yields nothing except perhaps a suggestion to leave the AC adapter plugged in for 24 hours while the battery charges. You note that, even after the hour or two it normally takes to charge the battery, the charging light is still on and the power button is still unresponsive.
Solution: If you close the laptop and turn it over, you will notice that on the bottom of the laptop, very near where the indicator lights are, there is a small pin hole. It looks just like the pin holes for other devices that require reset buttons. Stick a pin in it, push the button the hole leads to, and the orange light turns off. Suddenly your computer boots up like it always did and pretends like nothing happened.
The cause of this problem is probably an attempt on Toshiba’s part to be clever with the power system of their laptops; instead of letting a laptop die with a power surge, the laptop is equipped with something of a breaker. It can’t handle huge power surges like a lightning bolt, but it definitely gets flipped when a small one comes through the wire. Pushing the button resets that breaker and your computer comes to life again.
I am still a little angry about this. Toshiba should have had some sort of documentation on this feature. I believe it would be very easy for a college student like myself to run into this problem several times due to the frequent relocation of their computers for classes and coursework. I’m not entirely sure if I appreciate the feature, unless, of course, it saved my computer’s hardware from getting fried like the last computer I had.
Hope this helps someone.