Super I-Cybie Mod 2

 

An alternative to mounting the 1/8" stereo jack to the side of the dog. Here, it is attached to the back button insert. There is quite a bit of space in this area.
 

A small circuit board is attached underneath the back button insert. There is an IC socket mounted to the board for the MAX233 chip.
 

The small circuit board needs to be mounted with spacers to the back button insert. The spacers should be a proper length to allow for sufficient clearance above the main processor board (we don't want any shorts with all of this battery current flowing below!)

Button Construction

Board Circuit

Build Notes
My post to the I-Cybie Yahoo group regarding the REV K Super I-Cybie:

I just sucessfully performed a Super I-Cybie mod on a REV K board.
When installing CROMINST it detects a different ROM and gives the
following message:

STATUS CHECK
+- CROM will be replaced (old CROM or something else detected)
!! Middle part of ROM is unknown!
==> Install is NOT RECOMMENDED <==

CROM Installer Commands:
I = Install (whatever needed)
U = Uninstall CROM

I went ahead and did the installation. Everything checks out o.k. I
think Icybiepet wrote the CROMINST program to completely replace the
original system ROM if it detects something unknown. He did a really
good job of foreseeing this scenario.

Some interesting notes:

The original battery thresholds were set to 190 and 199.

The serial pads were very difficult to solder! They were so close
together. I ended up lifting the middle RxD0 pad due to overheating
it with my soldering iron. It was still intact but would shift around
with any movement of the wire. To save this situation I shorted this
pad to the /CTSO pad (refer to the www.aibohack.com site) just to the right of it in order to stop the movement. Of course, I took an Xacto knife and cut the trace from the /CTSO pad going to the processor to disable it. That was a close one. It's a show stopper if you break off any of these pads. You also need to be careful about solder bridges. I recommend you use fine single strand wire wrap wire to make the connection and then secure the wire to the board with a spot of glue (don't put the glue on the solder connection just in case it needs to be reworked with a soldering iron)