I'm hoping someone can help.
My 32GB Nexus 9 tablet shows 21.64GB of available storage space out of total space of 25.61GB (3.97 used in total). The used space only adds up to 1.97GB. The diskusage app reports the remaining 2gb as 'system data' but doesnt show the details.
Strangely, My 32GB Nexus 6 phone reports the identical apps and data correctly - 24.07GB available out of 25.98 total, with only minimal 'system data'.
Does anyone know what this 'system data' is and how to remove it on the Nexus 9? A hard reset didn't help.