O.k., I think it is 99,9% safe to apply this method in order to get the device rooted. The 'hangs' at the 'A9' screen are rather to be attributed to a connected USB stick or to the USB-UART-bridge that seems to interfere a bit with a connected HDMI device. Since for the non-hacker all above-mentioned reasons for a 'hang' are irrelevant, this "rooting" method can be applied in a rather simple manner without opening the device. The "update" (as I anderstand it) just copies the programs 'superuser.apk' and 'su' to the corresponding locations within the operating system and sets the corresponding permissions. Besides the systematic 'hangs' already described I have not faced further odd behaviour after the rooting the device. Best regards, wolfgang_pauli PS: As soon as I have time I'll write up the information promised some posts earlier. PPS: By rooting your device you may lose the warranty. Furthermore you may brick your device and reduce system security. Be warned and root your device only if you know what your are doing!!