Why do zebras always flash back?

Too much cache garbage; The system version is too low.

1, too much cache garbage. The reason why Zebra download of small learning machine always flashes back is that there is too much cache garbage, which takes up the system memory capacity and needs to be cleaned up.

2. The system version is too low. The reason why downloading zebra by small learning machine always flashes back is that the system version is too low and incompatible, and the system needs to be upgraded.