Lenovo TB-8504F 2019-10-16 605 FactoryTB-8504F_USR_S001011_1810162054_Q12000_ROW_SVC.zip 2.23 GB 29 DownloadsTB-8504F_USR_S000061_1809120958_Q12000_ROW_SVC.zip 2.78 GB 11 DownloadsTB-8504F_USR_S000060_1808281845_Q12000_ROW_SVC.zip 2.78 GB 0 Downloads