Odd, are you putting both Firmware and the EOS onto the SD card ?
(EOS) http://down.supercard.cn/download/dstwo/DSTWO_v1.11_2012_1224_eng.zip
(Firmware) http://down.supercard.sc/download/dstwo/Firmware/Firmware_v1.19_eng.zip
Put it into the Ds Lite 1st and the DS2 should detect the EOS file...