Yes, I know that I can pull the contents of the folders /protect_f and /protect_s. I already did that succesfully. However, my actual question is: Do these folders actually contain the relevant IMEI information? I have a hunch that they do but I am not sure. In addition, the bluetooth and wlan MAC addresses are probably located elsewhere. I could of course write the IMEI and MAC addresses down but in that case I would have no way to restore them without Windows. What I am looking for is a backup/restore process which needs only working adb connection and root access.