6205, 6217, 6219, 6223, 6225, 6253, and more. Spreadtrum (SPD): 6600D, 6600M, 6600E, 8800D, and 6600L.
Every update attempt (success or failure) is logged to a tamper-evident region of the Dragon Box’s secure element. Logs can be extracted only via the same tool with proper authentication. gpg dragon box firmware update tool exclusive