How to jailbreak 5.6.1.0.2 (serial port) step by step

[knc1]

Looks like it worked to me.
(the pixel out of range errors are your missing "jailbreak" message)

Now how are you trying to install KUAL?

PS: You do not need the serial port any longer, you have done all that needs to be done over that.

[volkaoth]

but I like my serial its "my precious" *gollumvoice*

maybe i chop a little bit case and lead the wireplugs to the edge...
*headshaking* but different case

back to KUAL - I did the install like in Kual-Thread.
I copied the 'KUAL-KDK-2.0.azw2' in the documents directory but I got no KUAL button on the homescreen or in the menu...

[volkaoth]

my fault its done

I did not expect that the KUAL looks like a book and it's listed in the libary

so it is working

[barkas]

Nice work. How exactly did you do the 1.8v serial connection?

[volkaoth]

I used this device USB UART Bridge CP2104 its voltage level is adjustable from 1,8V - 5V over the VIO-pin.
Therefor I placed the missing 2,54 cm pinstripes and used jumperwires for the connections.
Normaly I playing around with microprocessors and arduinoboards, so I have plenty leying around...

I made the hack on a KindleTouch2 it has the same FW (5.6.1.) like a PW2 but a little different hardware, so Im afraid you have to get other solderpoints on the device.
and I took the lvl of the kindle, like knc1 told in his KT2 Exposed Thread

On the picture:
white cable = VIO (1,8V)
black cable = GND (getting same potentials)
purple cable = Tx
gray cable = Rx

[bunbury]

Hi

I want to do the same !
So I just order this from the link you gave and that's all I need ?

Thanks

[volkaoth]

on additional hardwareside: yes
for easier use its adviseable to solder 2.54cm pinstrips on the bridge (like I did)
the holes are matching

furthermore just following this thread from beginning:

1. Dismantle the kindle
2. soldering the connections
3. installing drivers
4. getting root-access
5. installing the kindle-5.4-jailbreak
6. having fun with all other stuff in this forum

[bunbury]

Can I use any piece of cable to solder the 4 cables ?

[knc1]

Originally Posted by bunbury

Can I use any piece of cable to solder the 4 cables ?

yes - provided its physical size is small enough.
30 gage, solid wire is a close match to the pad sizes you have to work with.

[volkaoth]

last part: remantle.

The place is good, there is enough space left placing the cables.

It looks a little sloppy but a 4-pole connector will change this also.

[knc1]

Originally Posted by volkaoth

last part: remantle.

The place is good, there is enough space left placing the cables.

It looks a little sloppy but a 4-pole connector will change this also.

There is a thread here, well illustrated, of how one person added a connector to the bottom edge of a ....
Hmm... K5 I think (not that it matters, all the cases have a similar squared off bottom edge where the usb connector, charge light and power switch live) .

[cet]

hi,

thank you for the step by step tutorial. I tried to follow, but on the serial connection I only get "modem noise" within the minicom connection.

I use minicom (115200, 2 Stop, no paritiy, no flow control) over ttyUSB0 as the dmesg shows the following:

[  135.223473] usb 2-2.2: Product: CP2104 USB to UART Bridge Controller
[  135.223474] usb 2-2.2: Manufacturer: Silicon Labs
[  135.223475] usb 2-2.2: SerialNumber: 0081D6CA
[  135.275874] usbcore: registered new interface driver usbserial
[  135.276027] usbcore: registered new interface driver usbserial_generic
[  135.276164] usbserial: USB Serial support registered for generic
[  135.277447] usbcore: registered new interface driver cp210x
[  135.277596] usbserial: USB Serial support registered for cp210x
[  135.277747] cp210x 2-2.2:1.0: cp210x converter detected
[  135.277870] usb 2-2.2: cp210x converter now attached to ttyUSB0

Any Ideas?
Is there a way to test the uard-bridge?

[knc1]

Tell us a bit more detail on your setup please.

What did you do about the:
RTS, CTS function connections on the board?
How did you set the board for 1v8 I/O interface level?

[cet]

Originally Posted by knc1

Tell us a bit more detail on your setup please.

What did you do about the:
RTS, CTS function connections on the board?
How did you set the board for 1v8 I/O interface level?

I used only the following 4 (four) connections

Kindle<----------> UART-Adapter (my post #42)
RX <----------> TX
TX <-----------> RX
GND <-----------> Gnd
1.8 V <------------> VIO

I took 1.8v like showed on a picture from your "exposed" thread. checked it forehand with a multimeter and got 1.8v
I took the ground from a pin near the SIM.

Strange:
RX and TX LED on the board are permanent on (or blinking very fast, cant' tell).
When I disconnect the Kindle-Batterie, the "modem noise" got more (don't understand, where the "signals" are coming from)

Maybe I killed the RX pad on the Kindle Mobo, my soldering equipement isn't for SMD. So I'm not shure, if there is a good contact with the wire (I use 0,14mm2).

[knc1]

Sounds more like a bad ground lead.

Those ground points are backed by a fairly large, copper, ground plane - they require a lot more heat than the tiny signal pads do.

Also - are you seeing anything in your terminal application?

Jump Rx - Tx and see if you can see what you are sending on the terminal (no need to disconnect from the Kindle, it will survive).

Check the docs on how the CTS & RTS is used -
The chip might not work without those signals.

And/Or jumper CTS & RTS and set your terminal application to use hardware flow control.