今天手机端升级固件V1.9.2, 进度到了97%就白屏了，然后遥控器就连不上飞机了，相机手机端还能看到屏幕图像，就是不能操作。然后在DJI网站下载固件V1.08.01，按照网上PDF文件方法卡刷，云台灯长红滴声长鸣，格式化后重新下载到卡继续刷，不变；后来从手机端下载V1.09.02考到卡里继续刷，还是和之前刷一样长鸣不成功。 找出手机升级后失败备份的文件misc/log文件P3C_FW_LOG_AB.txt，如下： [00414124]========== 2016.09.17 11:34:52. boot(15) ============ [00414262]Packet [C:\P3C_FW_V99.99.9999.bin] detected, card sn [0x49380d07]. [00414298]Packet upgrade start... [00414342]Packet checking... [00414390]Packet vlink 01.06.0080 <-> 01.05.0070. [00414457]Done. [00414491]Version checking[1]... [00414556][09 00][00] v0.1.0.9 -> v0.1.1.0 need upgrade. [00414681][11 00][00] v1.7.0.0 -> v1.8.0.0 need upgrade. [00414723]Done. [00416760]Waiting for user confirm... [00426794]Timeout, start upgrade automatically. [00426870]Firmware upgrading[1]... [00426918][11 00] Firmware upgrade start... [00476652][11 00] Firmware upgrade finished successfully. [00476712][09 00] Firmware upgrade start... [00519671][09 00] Firmware upgrade finish without reboot. [00549705][09 00] Firmware upgrade finished successfully. [00549741]Done. [00549772]Version checking[2]... [00549856][09 00][05] v0.1.1.0 -> v0.1.1.0 [00549976][11 00][05] v1.8.0.0 -> v1.8.0.0 [00550006]Packet upgrade finish successfully. [00115051]========== 2016.11.13 23:28:29. boot(15) ============ [00115100]Packet [C:\P3C_FW_V99.99.9999.bin] detected, card sn [0x81411a91]. [00115146]Packet upgrade start... [00115223]Packet checking... [00115284]Packet vlink 01.07.0090 <-> 01.06.0080. [00115326]Record vlink 01.06.0080 <-> 01.05.0070 (flow = 0). [00115369]Done. [00115419]Version checking[1]... [00115468][04 00][00] v1.44.0.0 -> v1.51.0.0 need upgrade. [00115517]Done. [00117561]Waiting for user confirm... [00127604]Timeout, start upgrade automatically. [00127696]Firmware upgrading[1]... [00127778][04 00] Firmware upgrade start... [00188700][04 00] Firmware upgrade finished successfully. [00188739]Done. [00188781]Version checking[2]... [00188829][04 00][05] v1.51.0.0 -> v1.51.0.0 [00188874]Packet upgrade finish successfully. [00051242]========== 2017.01.16 23:07:49. boot(15) ============ [00051293]Packet [C:\P3C_FW_V99.99.9999.bin] detected, card sn [0x81411a91]. [00051453]Packet upgrade start... [00051502]Packet checking... [00051567]Packet vlink 01.08.0100 <-> 01.07.0090. [00051611]Record vlink 01.07.0090 <-> 01.06.0080 (flow = 0). [00051666]Done. [00051715]Version checking[1]... [00051819][03 06][00] v2.4.15.5 -> v2.4.20.28 need upgrade. [00051871]Done. [00053917]Waiting for user confirm... [00063966]Timeout, start upgrade automatically. [00064085]Firmware upgrading[1]... [00064451][03 06] Firmware upgrade start... [00476259][03 06] Firmware upgrade finished successfully. [00476312]Done. [00476353]Version checking[2]... [00476430][03 06][05] v2.4.20.28 -> v2.4.20.28 [00476478]Packet upgrade finish successfully. [00236978]========== 2017.06.24 11:56:05. boot(15) ============ [00237032]Packet [C:\P3C_FW_V99.99.9999.bin] detected, card sn [0x81411a91]. [00237080]Packet upgrade start... [00237139]Packet checking... [00237195]Packet vlink 01.09.0200 <-> 00.00.0000. [00237245]Record vlink 01.08.0100 <-> 01.07.0090 (flow = 0). [00237293]Done. [00237352]Version checking[1]... [00237464][03 06][00] v2.4.20.28 -> v2.4.20.50 need upgrade. [00237557][09 00][00] v0.1.1.0 -> v0.1.1.1 need upgrade. [00237605]Done. [00239654]Waiting for user confirm... [00249708]Timeout, start upgrade automatically. [00249825]Firmware upgrading[1]... [00250163][03 06] Firmware upgrade start... [00677752][03 06] Firmware upgrade finished successfully. [00677824][09 00] Firmware upgrade start... [00733066][09 00] Firmware upgrade finish failed (step = 4, err = 0xaa, idx = 97, los = 30, ng = 0). [00763111]Done. [00763158]Version checking[2]... [00775713][03 06][05] device not detected. [00788257][09 00][06] device not detected. [00788299]Packet upgrade failed at version checking. 求帮助解决