nanox check failed

[bitcodernull]

i got the following errors:

(ledger) localhost:ledger$ python -m ledgerblue.checkGenuine --targetId 0x33000004
Traceback (most recent call last):
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py", line 162, in _run_module_as_main
"main", fname, loader, pkg_name)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/runpy.py", line 72, in _run_code
exec code in run_globals
File "/Users/shangzuo/work/document/ledger/ledger/lib/python2.7/site-packages/ledgerblue/checkGenuine.py", line 140, in
secret = getDeployedSecretV2(dongle, bytearray.fromhex(args.rootPrivateKey), args.targetId, args.issuerKey)
File "/Users/shangzuo/work/document/ledger/ledger/lib/python2.7/site-packages/ledgerblue/checkGenuine.py", line 58, in getDeployedSecretV2
dongle.exchange(apdu)
File "/Users/shangzuo/work/document/ledger/ledger/lib/python2.7/site-packages/ledgerblue/comm.py", line 141, in exchange
raise CommException("Invalid status %04x (%s)" % (sw, possibleCause), sw, response)
ledgerblue.commException.CommException: Exception : Invalid status 69d5 (Unknown reason)