Title: How to Reduce Mass Flashing Time on NVIDIA Jetson Devices Over USB 2.0?

[KevinFFF]

Hi tuan100220,

I’ve moved your topic to the correct category for Xavier NX.

@tuan100220

Is it normal for massflash to take around 2 hours for 10 devices over USB 2.0?

It seems not the expected result to me.
Is there any error during flash? Or what causes it stucks?

@tuan100220

Does NVIDIA provide any method to speed up multi-device flashing?

The massflash method should be the one for this use case.

@tuan100220

Is there a way to use Ethernet or network-based flashing instead of USB recovery mode?

Sorry, the current flash method is based on USB.

@tuan100220

Would using multiple host PCs or multiple USB controllers significantly improve flashing speed?

Please simply switch another host to check if there’s the similar issue.

@tuan100220

Does preparing a prebuilt image (system.img) or enabling --reuse help reduce per-device flashing time?

I think the --flash-only option will skip the step to create the image during flash.

@tuan100220

tar -xpf system.img during flashing is extremely slow and CPU-bound.

Could you share the full log from your host during flash?