Supercard team has released the update patch for both Supercard DStwo and DSONEi , here is a step by step to tell you how to update your Supercard DSONEi to work on DSi v1.4.2 Firmware.
1) Download the update file here and put onto micro sd card
2) Put microsd card into dsonei then into writer
3) Put write into usb power source and wait 8-15min
4) After light turns green you are done updating
5) Re-formartmicrosd card and put firmware and put into 1.4.2 dsi