Android TV box donne une erreur pendant le flashage

J'essaie de flasher Android 7.1 TV box t6 s905x en utilisant USB_burning_Tool_v2.0.6.2 et pendant que j'essaie de faire le flashage j'obtiens l'erreur suivante.

[16:19:56 234][HUB1-3][Err]--[0x00000fff]Get key failed

Voici le journal obtenu de USB_burning_Tool

    [16:19:49 419][Global][Inf]--Scan USB host controller complete
[16:19:49 419][Global][Inf]--Update data center with HubMap
[16:19:49 419][Global][Inf]--Update hub1 device data
[16:19:49 419][Global][Inf]--Update HUB1-1 \\.\USB#VID_05E3&PID_0606#5&3478949&0&1#{f18a0e88-c30c-11d0-8815-00a0c906bed8}
[16:19:49 419][HUB1-1][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-2 
[16:19:49 419][HUB1-2][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-3 \\?\usb#vid_1b8e&pid_c003#5&3478949&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
[16:19:49 419][HUB1-3][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-4 
[16:19:49 419][HUB1-4][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-5 
[16:19:49 419][HUB1-5][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-6 
[16:19:49 419][HUB1-6][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-7 
[16:19:49 419][HUB1-7][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-8 
[16:19:49 419][HUB1-8][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-9 
[16:19:49 419][HUB1-9][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-10 
[16:19:49 419][HUB1-10][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-11 
[16:19:49 419][HUB1-11][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-12 
[16:19:49 419][HUB1-12][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-13 
[16:19:49 419][HUB1-13][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-14 
[16:19:49 419][HUB1-14][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-15 
[16:19:49 419][HUB1-15][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-16 
[16:19:49 419][HUB1-16][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-17 
[16:19:49 419][HUB1-17][Inf]--Update device path
[16:19:49 419][Global][Inf]--Update HUB1-18 
[16:19:49 419][HUB1-18][Inf]--Update device path
[16:19:49 435][HUB1-3][Inf]--Open device handle \\?\usb#vid_1b8e&pid_c003#5&3478949&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}  0x0000088c
[16:19:49 488][HUB1-3][Inf]--CloneImageProxy
[16:19:49 604][HUB1-3][Err]--[0x00000fff]Get key failed
[16:19:49 604][HUB1-3][Inf]--Close device handle 0x0000088c
[16:19:53 851][Global][Inf]--User click refresh button
[16:19:53 883][Global][Inf]--Burning thread HUB1-3 start
[16:19:53 936][HUB1-3][Inf]--Open device handle \\?\usb#vid_1b8e&pid_c003#5&3478949&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}  0x00000c10
[16:19:54 098][HUB1-3][Err]--[0x00000fff]Get key failed
[16:19:54 098][HUB1-3][Inf]--Close device handle 0x00000c10
[16:19:54 985][Global][Inf]--User click refresh button
[16:19:55 001][Global][Inf]--Burning thread HUB1-3 start
[16:19:55 054][HUB1-3][Inf]--Open device handle \\?\usb#vid_1b8e&pid_c003#5&3478949&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}  0x00000c10
[16:19:55 211][Global][Inf]--User click refresh button
[16:19:55 226][HUB1-3][Err]--[0x00000fff]Get key failed
[16:19:55 226][HUB1-3][Inf]--Close device handle 0x00000c10
[16:19:55 429][Global][Inf]--User click refresh button
[16:19:55 461][Global][Inf]--Burning thread HUB1-3 start
[16:19:55 530][HUB1-3][Inf]--Open device handle \\?\usb#vid_1b8e&pid_c003#5&3478949&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}  0x00000c10
[16:19:55 614][Global][Inf]--User click refresh button
[16:19:55 645][HUB1-3][Err]--[0x00000fff]Get key failed
[16:19:55 645][HUB1-3][Inf]--Close device handle 0x00000c10
[16:19:55 977][Global][Inf]--User click refresh button
[16:19:56 009][Global][Inf]--Burning thread HUB1-3 start
[16:19:56 065][HUB1-3][Inf]--Open device handle \\?\usb#vid_1b8e&pid_c003#5&3478949&0&3#{a5dcbf10-6530-11d2-901f-00c04fb951ed}  0x0000088c
[16:19:56 216][Global][Inf]--User click refresh button
[16:19:56 234][HUB1-3][Err]--[0x00000fff]Get key failed
[16:19:56 234][HUB1-3][Inf]--Close device handle 0x0000088c

ce que l'on entend par [0x00000fff]Get key failed ?