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Old 06-19-2011, 02:14 PM   #17
mavogs
Junior Member
mavogs began at the beginning.
 
Posts: 4
Karma: 10
Join Date: Jun 2011
Device: Kindle 3 3G
Hi!

I tried to access the serial port but was not successful.
First of all the 1.8V were not able to supply my level shifter (74AVC4T245 which requires about 2mA@1.8V).
This I solved by using the 3.3V Volt from my usb to serial adapter to generate the 1.8V (using Zener diode and a resistor).
There is no communication on the serial port, I also checked with an osziloscope.

Do I have to enable something to see the boot log and access the device?

I am using a Kindle 3 3G (non US) with firmware version 3.1.

BR
Martin
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