

#A500 APX DRIVER DOWNLOAD SERIAL#
The UID is also the USB serial numer of the device. The SBK used for the Iconia A500 is generated based on the UID of the device and thus unique for each device. Secure Boot Key (SBK)Ī description of what Secure Boot Key (SBK) is can be found at. When in APX mode the device can be flashed using NVIDIA's nvflash. To trigger a rebuild of the checksums on boot replace 64 bytes at offset 0x84 with "00 FB 30 94 99 01 4F 97 2E 4C 2B A5 18 6B DD 06" x 4. Seems to contain Widevine DRM key storage? The boot partitons LNX and SOS contain combined kernel and initrd images, following the format described in bootimg.h AKBĬhecksums for the rest of the partitions, and what more? checking checksums, signing? Boot Partitons (LNX and SOS) The bitfield values for ODM Data is specified in tegra_devkit_custopt.h. ODM Data is a 32bit value that can be found at offset 0xfe4 in the BCT. File layout OffsetĬhecksum - AES-CMAC of the rest of the fileīlock size in log2 (14 => 2**14 = 0x4000) There is a bct_dump tool available trough the chromium project, the source can be found in the cbootimage repository. The Boot Config Table (BCT) contain quite a bit of information. mnt/sdcard is fuse mounted from /data/media.īCT and EBT are encrypted using the SBK.
#A500 APX DRIVER DOWNLOAD PATCH#
It have however been reverse engineered based on the Toshiba AC100/Dynabook AZ: Patch nvtegra.c and here. The parition layout is in a NVIDIA proprietary format with no public official specification. Kernel command line: vmalloc=256M video=tegrafb console=none usbcore.old_scheme_first=1 tegraboot=sdmmc gpt Partition layout This is an attempt to summarize and extend the current knowledge about the Acer Iconia A500 tablet.
