Seller says that this phone has been reset, but not what kind of reset. The Nexus 5 is not linked to any Google account. Phone was Android 4, but has been upgraded to Android 6.
Do you think I should still do a Wipe Cache Partition AND a wipe data/factory reset (hard reset)? Thought I should do this for security / privacy issues, but I imagine the phone would revert back to Android 4, with maybe no way to reinstall Android 6.
Or, since I see no account activity and no files, do you think the phone is OK to use as is with just a Wipe Cache Partition? Thanks for your help.