Some very rought notes on toying with my phone.

List of key combinations. Another one here: Power on with VOL+ + VOL-, allows to "clean boot" (not sure what that does).

Recovery install, and many other things for the Acer. As I understand it, recovery image is an OS on its own partition, but there is no recovery image in stock phones.

Meanwhile, there seems to be an utility from Acer to unbrick if all goes wrong.

Installing the recovery: lsusb (find device ID of the phone) as root: ./fastboot -i 115 flash recovery ~yves/src/java/root/RecoveryMT-2.2/recoo.img Now you can enter recovery mode: switch off, then FOCUS + VOL+ + VOL- + POWER Now you can enable USB-MS (Mass Storage) and access anything on the phone.