Thread: HELP unbrick Kindle Paperwhite 1 - NO USB
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Old 02-21-2015, 08:11 AM   #20
knc1
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Posts: 17,212
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Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
Quote:
Originally Posted by bappies7 View Post
How did you manage to get into the bootloader mode?
I have tired but i cant get into it, noting happen at the putty windows. ;(

Care to share with me?
I have a desktop with com 1 9 pins serial port.
What is your pin to pin configuration from the kindle to pc?

I kinda confused on the pin configuration. Which Com 1 configuration is correct?

Kindle: Com 1 Com 1

GND Pin 5 GND Pin 5 GND
RX Pin 2 RX Pin 3 TX
TX Pin 3 TX Pin 2 RX


Thanks..
The voltage levels of a standard serial port on your PC is **far higher** (nearly 7 times) than that which the Kindle's SoC can tolerate.

You should use a 1.8 volt (not 12 volt) serial port.
OR
Use a USB-to-Serial adapter with the serial side set for 1.8 volt operation.
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