Can anyone tell me what this is? It seems to be some sort of bootloader. I looked it up, and it seems as though you can update the WinCE image by using WinCE update. If I can get a backup Magellan Maestro 4040 WinCEimg.bin, I'll see if I can upgrade the OS to a normal WinCE environment, complete with desktop. Maybe in the future I'll be able to get Linux on it. Let me know what you think in the comments.

Power button is select, reset button is a down arrow. Here's the Menu breakdown:

Venus3 UT R08

0=WINCE Upgrade
- 0=WINCE by SD/MMC (Format)
- 1=WINCE by SD/MMC
- 2=WINCE by USB (Format)
- 3=WINCE by USB
- 4=EXIT

1=GPS Tools
- 0=Gps Updating
- 1=Gps Test
- 2=Exit

2=BT Tools
- 0=BT Test Mode
- 1=Write BT MAC
- 2=Exit

3=UBOOT Upgrade
- 0=UBOOT by USB
- 1=UBOOT by SD/MAC
- 2=Exit

4=Memory Tools
- 0=ROM CheckSum
- 1=Memory Test
- 2=Exit

5=Other Tools
- 0=CPLD Upgrade by SD/MMC
- 1=CPLD Upgrade by USB
- 2=Read CPLD user code
- 3=Download & Run
- 4=Nand Tools
- 5=Nand Bad Block Check
- 6=Nand Ecc Check
- 7=Format
- 8=Exit