Hi Trumany
yes,the APX Nvidia recovery USB can always been seen,before download or downloading error Occurred.I tried connect the debug serial port to log,i found some error information,but i don’t know why and how the error occurred.The log shows below.
[0041.467] I> MB1 (prd-version: 1.0.0.0-t194-41334769-a3872862)
[0041.473] I> Boot-mode: Platform RCM
[0041.476] I> chip revision : A02
[0041.479] I> Bootrom patch version : 7 (correctly patched)
[0041.484] I> ATE fuse revision : 0x200
[0041.488] I> Ram repair fuse : 0x0
[0041.491] I> Ram Code : 0x0
[0041.493] I> rst_source : 0x0
[0041.496] I> rst_level : 0x0
[0041.500] I> USB configuration success
[0043.481] I> Command received is 1
[0043.556] I> Command received is 1
[0043.683] I> Command received is 1
[0043.750] I> Command received is 2
[0043.790] I> mb2 image downloaded
[0043.834] I> Command received is 1
[0043.906] I> Command received is 10
[0043.909] I> Recovery boot mode 0
[0043.922] E> Unsupported boot-device strap-reg: 0x00000004
[0043.927] E> Get boot dev failed
[0043.930] E> UPHY lane_config get failed
[0043.933] E> task 33 failed (err: 0x1e1e0001)
[0043.937] E> top caller module: SOCMISC, error module: SOCMISC, reason: 0x01, aux_info: 0x00
[0043.945] I> MB1(1.0.0.0-t194-41334769-a3872862) BIT boot status dump :
1111111111111100000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000011001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
[0043.975] I> Reset to recovery mode