>"Note that taking a screenshot of the cheating app turned out to be more difficult than expected because the ROM is hardened against analysis. In particular, t

>"Note that taking a screenshot of the cheating app turned out to be more difficult than expected because the ROM is hardened against analysis. In particular, they removed the ADB server (Android debugging) and the ability to take a screenshot when the phone is operating in cheating mode. However, with a bit of work, I was able to re-establish the functionalities needed to take the screenshots of the app used in this section." I'd have used a camera. edit - this got me thinking, taken as an average, each playing card's face is a unique colour. As a card is placed face down onto a table, if you point a camera at the patch of table where the card is being placed, you should be able to work out which card it is if you look carefully at the change in the colour of the light reflected. As it gets really close you can also pull out some pattern.