Android Q fastboot刷GSI（MTK）_invalid sparse file format at header magic

平台：MT6771

版本：Android 10.0

ADB版本：1.0.41

1.打开开发者选项，勾选OEM unlocking,USB debugging,

2.adb reboot bootloader(开机键和音量+键进入recovery模式，上下选fastboot mode)

进入fastboot mode模式

3.fastboot flashing unlock

按音量+键解锁

4.fastboot reboot fastboot

此步骤请不要选择任何选项，耐心等待，出现fastbootd界面

5.fastboot delete-logical-partition product

6.fastboot -S 100M flash system D:\BaiduYunDownload\signed_signed-aosp_arm64-img-6473
483\system.img

刷入google signed system.img

7.fastboot reboot bootloader

8.fastboot flashing lock

重新上锁，不锁开不了机

9.fastboot reboot

重启

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指令执行记录

C:\Users\Administrator\Desktop\platform-tools_r30.0.1-windows\platform-tools>adb
 reboot bootloader
adb server version (40) doesn't match this client (41); killing...
* daemon started successfully
C:\Users\Administrator\Desktop\platform-tools_r30.0.1-windows\platform-tools>fas
tboot flashing unlock
                                                   (bootloader) Start unlock flo
w
OKAY [  7.809s]
Finished. Total time: 7.816s
C:\Users\Administrator\Desktop\platform-tools_r30.0.1-windows\platform-tools>fas
tboot reboot fastboot
Rebooting into fastboot                            OKAY [  0.006s]
< waiting for any device >
Finished. Total time: 16.133s
C:\Users\Administrator\Desktop\platform-tools_r30.0.1-windows\platform-tools>fas
tboot delete-logical-partition product
Deleting 'product'                                 OKAY [  0.006s]
Finished. Total time: 0.009s
C:\Users\Administrator\Desktop\platform-tools_r30.0.1-windows\platform-tools>fas
tboot -S 100M flash system D:\BaiduYunDownload\signed_signed-aosp_arm64-img-6473
483\system.img
Invalid sparse file format at header magic
Resizing 'system'                                  OKAY [  0.003s]
Sending sparse 'system' 1/12 (93956 KB)            OKAY [  3.059s]
Writing 'system'                                   OKAY [  3.004s]
Sending sparse 'system' 2/12 (102396 KB)           OKAY [  3.528s]
Writing 'system'                                   OKAY [  3.264s]
Sending sparse 'system' 3/12 (102396 KB)           OKAY [  3.451s]
Writing 'system'                                   OKAY [  3.226s]
Sending sparse 'system' 4/12 (97964 KB)            OKAY [  3.284s]
Writing 'system'                                   OKAY [  3.081s]
Sending sparse 'system' 5/12 (102396 KB)           OKAY [  3.448s]
Writing 'system'                                   OKAY [  3.229s]
Sending sparse 'system' 6/12 (102396 KB)           OKAY [  3.531s]
Writing 'system'                                   OKAY [  3.185s]
Sending sparse 'system' 7/12 (102396 KB)           OKAY [  3.459s]
Writing 'system'                                   OKAY [  3.250s]
Sending sparse 'system' 8/12 (102396 KB)           OKAY [  3.437s]
Writing 'system'                                   OKAY [  3.249s]
Sending sparse 'system' 9/12 (102396 KB)           OKAY [  3.395s]
Writing 'system'                                   OKAY [  3.289s]
Sending sparse 'system' 10/12 (102396 KB)          OKAY [  3.371s]
Writing 'system'                                   OKAY [  3.166s]
Sending sparse 'system' 11/12 (102396 KB)          OKAY [  3.374s]
Writing 'system'                                   OKAY [  3.186s]
Sending sparse 'system' 12/12 (64452 KB)           OKAY [  2.123s]
Writing 'system'                                   OKAY [  4.009s]
Finished. Total time: 82.042s
C:\Users\Administrator\Desktop\platform-tools_r30.0.1-windows\platform-tools>fas
tboot reboot bootloader
Rebooting into bootloader                          OKAY [  0.001s]
Finished. Total time: 0.003s
C:\Users\Administrator\Desktop\platform-tools_r30.0.1-windows\platform-tools>fas
tboot flashing lock
                                                   (bootloader) Start lock flow
OKAY [  6.811s]
Finished. Total time: 6.818s
C:\Users\Administrator\Desktop\platform-tools_r30.0.1-windows\platform-tools>fas
tboot reboot
Rebooting                                          OKAY [  0.002s]
Finished. Total time: 0.007s
C:\Users\Administrator\Desktop\platform-tools_r30.0.1-windows\platform-tools>

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参考：https://blog.csdn.net/qq_24883353/article/details/106280528