BCAT (Background Content Asymmetric synchronized delivery and Transmission) encompasses a set of content download/upload related services.

BCAT services

Equivalent to 3DS BOSS(SpotPass). See here for BCAT-content-container.

bcat:u

bcat:s

bcat:m

bcat:a

News services

news:p

news:v

news:m

news:c

news:a

Play Report services

The "Play Report" (prepo) service uploads system and user information to a cloud server. This includes the following fields:

sys_info
data
application_id
event_id
operation_mode
lc_recorded_at (followed by a timestamp)
nc_recorded_at (followed by a timestamp)
nsa_id
os_version

And the contents of the following file:

is_user_agreement_check_enabled.bin

All the information is periodically uploaded to the following URL:

  • https://receive-%.dg.srv.nintendo.net/post

It also checks the validity of the device's authentication token using the following URL:

  • https://dauth-%.ndas.srv.nintendo.net/v1/device_auth_token

prepo:u

prepo:s

Cmd Name
10100
10101
10200
10300
20100
20101
30100
40100
40101
90100

prepo:m

prepo:a