Hardware Versions
There are 2 types of hardware version of the CycloDS Evolution:
Hardware v1.0
Card color: white only.
A small chip which makes the sticker protrude slightly, but this has no effect on functionality at all.
At boot, SELECT is used for the CycloDS Evolution Recovery Firmware Installer, which means FlashMe Recovery Mode cannot be used with HW v1.0 cards.
Hardware v1.1
Card color: black or white
Completely flat with no protruding chip
Support for FlashMe Recovery Mode since the SELECT button is free as a boot button.
How to Determine Version
Hold down+B while starting the CycloDS. If you have the DS in standard mode, just select the CycloDS from the menu and quickly press and hold down+B after selecting the CycloDS. If you have the DS auto-start the DS cartridge, then just hold down+B immediately after confirming the Health and Safety Warning.
If you get a screen which says CycloDS Evolution Recovery Mode then you have Hardware version 1.1
If you are always taken to the normal load screen for the CycloDS then you have Hardware version 1.0