MobileRead Forums - View Single Post - 602 What would cause a PB 602 to power on and then turn off after about three seconds?

rkomar · 12-30-2021, 05:08 PM

I don't have any definitive answers for you. If you are handy with electronics, then you can probably find some JTAG pads on the motherboard and attach a JTAG->USB converter to it. If so, you could probably watch the console while it boots and look for error messages there.

I have a 902, but unfortunately I couldn't get the back off the device this time, so I wasn't able to look for the JTAG pads on my device.

12-30-2021, 05:08 PM	#6
rkomar Wizard Posts: 3,055 Karma: 18821071 Join Date: Oct 2010 Location: Sudbury, ON, Canada Device: PRS-505, PB 902, PRS-T1, PB 623, PB 840, PB 633	I don't have any definitive answers for you. If you are handy with electronics, then you can probably find some JTAG pads on the motherboard and attach a JTAG->USB converter to it. If so, you could probably watch the console while it boots and look for error messages there. I have a 902, but unfortunately I couldn't get the back off the device this time, so I wasn't able to look for the JTAG pads on my device.