Yes I have some problems in that sense. Using card, the device does not start at all. I tried using the toothpick and also without using it and with the card inserted, it still doesn't give any lifesign, since the monitor connected doesn't receive signal. Via update tool is impossible since it doesn't exist in my version (strange but true), maybe I have some proprietary or modified version I don't know. However I will now try to flash the stock 7.1.2 and start over the procedure, maybe I will be lucky.
Still many thanks