Hi,
My PlayBook will not boot up anymore after a possible short circuit of the charging mechanism. I made a portable charging set running off of four D batteries with a zener diode to restrict the voltage to 5 volts. The two contact points had touched each other with my playbook connected and now it won't even try to boot. I had a full battery and still nothing. when i hold the power button, somewhere around the CPU i hear a faint clicking that happens twice with 3/4 of a second ion between each. Any ideas for what I should do?