After getting a taste of rooting tablets with the Lenovo Thinkpad tablet, I decided to turn my attention to the Sony Tablet S. It turned out to be a tough device to root. The Bug The Sony Tablet S has a logging service running as root named nfx_log_service. This service maintains on-disk backups of the Android logcat buffers in the /log directory. This directory is group-writable and group “log”,