Hey I just played around with the Yoga Book and found the following:
1. turned it on until the error screen (when you unlocked the bootloader,.)occured
2. then pressed 'power' + 'volume down' which renewed the error screen which said this time it will boot the device in 30sec (instead to 5 secs of the first error screen)
3. after the 30 seconds and when the error screen disappeard I just pressed 'power' + 'volume down' 3 times.
4. the device booted in some kind of 'service / manufacturer menu'
without a keyboard it is just partly possible to navigate. you can use 'vol up' & 'vol down' to scroll up and down and 'power' to enter sth. It was not possible to navigate to the back button...
any idea what this is good foor, e.g. options like security boot?
also i was thinking if 'factory reset' would also help after flashing e.g. a wrong recovery. which would make testing some recoveries from e.g. the lenovo yoga 3 pro (which has the same chip set) possible.
adb seems to work in this menu, but I still couldn't dump the recovery partition(which is /dev/block/mmcblk0p4) because it always returns 'permission denied'.
1. turned it on until the error screen (when you unlocked the bootloader,.)occured
2. then pressed 'power' + 'volume down' which renewed the error screen which said this time it will boot the device in 30sec (instead to 5 secs of the first error screen)
3. after the 30 seconds and when the error screen disappeard I just pressed 'power' + 'volume down' 3 times.
4. the device booted in some kind of 'service / manufacturer menu'
without a keyboard it is just partly possible to navigate. you can use 'vol up' & 'vol down' to scroll up and down and 'power' to enter sth. It was not possible to navigate to the back button...
any idea what this is good foor, e.g. options like security boot?
also i was thinking if 'factory reset' would also help after flashing e.g. a wrong recovery. which would make testing some recoveries from e.g. the lenovo yoga 3 pro (which has the same chip set) possible.
adb seems to work in this menu, but I still couldn't dump the recovery partition(which is /dev/block/mmcblk0p4) because it always returns 'permission denied'.
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