Level 2 low battery ●●●●● ●●●●● - warning ●●●●●… Disconnected from remote control for - ●●● ●●● ●●●… more than 3s Level 1 low battery - ●●● ●●● ●●●… warning Level 2 low battery - ●●●● ●●●● ●●●●… warning Firmware upgrade in Wait ●● ●● ●●… progress Check upgrade on Upgrade failed ●Normally upgrade step. Upgrade again on Upgrade succeeded - ●Normally Appendix Table 2-1
●●●●● ●●●●● ●●●●●… Level 2 low battery warning - ●●● ●●● ●●●… Disconnected from remote control for more than 3s - ●●● ●●● ●●●… Level 1 low battery warning - ●●●● ●●●● ●●●●… Level 2 low battery warning - upgrade ●● ●● ●●… Firmware upgrade in progress Wait ●Normally on Upgrade failed Check upgrade step. Upgrade again ●Normally on Upgrade succeeded - Appendix Table 2-1
X650_User-Manual_V1_0_0.docx