If you live in the US you will need a proxy to download files.
Transferred to the sd card (didn't add any maps, mainly because I couldn't find the proper one's for the us).
Followed the provided instructions with the readme file. (below)
Transfer all files inside the hybrid-4.001 file to the sd card. (yes all of them)
insert sdcard in unit
to enter uboot mode, flash new OS (winceimg.bin), and format My Flash Disk:
power up while holding reset, eject, menu, & map
release reset, but keep holding eject, menu, & map
blue screen: "please push reset key again"
enter sequence: up, up, down, menu, left, right
choose "0=WINCE Upgrade"
choose "0=WINCE by SD/MMC (Format)"
leave sdcard inserted until all on screen prompts are completed, then press the restart button.
update application:
with sdcard inserted, unit should boot into "Testmode" (windows explorer desktop with a few utilities).
Use explorer or total commander to copy contents of "\Storage Card\copy_contents_to_My_Flash_Disk" to "\My Flash Disk"
(one method: select the folders/files in the folder, copy, navigate to My Flash Disk, and paste)
My Flash Disk should contain the folders like APL, APL2, etc.
this may take a while (15-20 mins?)
when copy is complete, remove sdcard
reset unit
unit should boot up and go through initial setup (language, etc), then reboot a final time.
That was it, selected my language and everything was working perfect!
Next im gonna add some maps.
Unit: AVIC-X9115BT