I am trying to root an Acer Iconia Tab A200 tablet using a script. I have adb working and fastboot works too, however, command
fastboot devices returns a list of question marks. Eg:
Image ilustrates the steps followed and the result:
I execute command
fastboot devices in the bootloader which is already unlocked. Using Ubuntu 14.04. udev settings are already set (the file with vendors IDs).
What can I do to get the correct result? How can I make fastboot work well?
Thanks in advance!
It can be a cable fault. Change the cable. In my Redmi 3 on a cable from old Xperia P i've had question marks, replaced the cable to a newer cable from Redmi Note 2 and voila - the correct number displays instead of the question marks.