Updating JetPack on reComputer J1020

I have the reComputer J1020. I’m running into this error when I run the Jetson Inference AI demo:

[TRT]    2: [utils.cpp::checkMemLimit::380] Error Code 2: Internal Error (Assertion upperBound != 0 failed. Unknown embedded device detected. Please update the table with the entry: {{1794, 6, 16}, 12660},)
[TRT]    device GPU, failed to build CUDA engine
[TRT]    device GPU, failed to load networks/bvlc_googlenet.caffemodel
[TRT]    failed to load networks/bvlc_googlenet.caffemodel
[TRT]    imageNet -- failed to initialize.
jetson.inference -- imageNet failed to load built-in network 'googlenet'
Traceback (most recent call last):
  File "imagenet.py", line 55, in <module>
    net = jetson.inference.imageNet(opt.network, sys.argv)
Exception: jetson.inference -- imageNet failed to load network

From the forum it looks like the fix is to upgrade JetPack from 4.6 to 5. However there is no microSD card to flash.

How can I update JetPack to version 5? Or, how can I correct the error without updating?