GP32

The first in a line of consoles from GamePark, before they went bankrupt again.

Test Mode
Pressing L, R, R, L, R, R, L, L at the menu screen brings up the "GP32 Test Mode". The initial screen shows the product ID and the firmware version.

Revisional Differences
Due to each version having a different firmware number, the test mode screen was changed accordingly. Starting from 1.5.7, the language was changed to English.

The titlescreen and menu were changed in version 1.6.6 as well.