Bryston SP3 Manual page 55

APPENDIX J: FIRMWARE UPLOAD INSTRUCTIONS continued
a) SP3.bin file uploading (about 1minute). During this stage the FIRMWARE
UPLOAD screen is displayed showing the progress count in seconds, bytes remaining to
be transferred and status. The unit will only respond to a limited number of commands
and buttons, namely: Left Arrow and Standby button to cancel the process. When the
process is cancelled at this stage, it returns to the main screen and the unit can operate as
the audio processor as before with the exception of web controls. Cancelling of a
pending upload may leave some internal web source files missing, preventing the main
SP3 web control page to work. In such a case the only web interface part that is
guaranteed to work is the upload page:
http://xx.xx.xx.xx/upload
restarted and allowed to finish.
b) Internal self-programming cycle (about 1 minute). The screen and all LEDs
except standby are blank and the SP3 unit undergoes internal self-programming cycle of
its control processor using the newly uploaded SP3.bin firmware file. This stage cannot
be interrupted! The progress of the self-programming can be followed observing the
standby LED blinking pattern. In the first (file verification) stage the LED blinks in
short pulses interspaced by long (few sec) gaps, in the second stage (self-erase) it goes
yellow or magenta for a couple of seconds, in the third stage (self-program) it stays green
or blue for about 10 seconds.
If the original firmware is older than 2012.05e and SP3 unit is
unpowered during the internal self-programming cycle, while the
LED is yellow(pink) or green (blue), then it may be rendered in-
operable, requiring a factory reprogramming service
c) Reboot and "idle test" of the newly programmed software (20s). The unit shows
a standard power up logo screen, then the main screen. The first 10 seconds following the
boot is the so-called "idle test" marked with the Standby LED staying on (yellow or
magenta). If the unit crashes or is accidentally powered off during this time, then the
system will reprogram itself yet again on the next power up, restoring the factory backup
software (factory backup release number is prefixed with 'f', for example f2012.05).
Do not unplug or power off the unit and wait ten more seconds for the Standby LED to
go dark after the main screen shows up, before using the SP3. Press the left arrow on the
front panel to display the serial number and firmware revision, verifying that the revision
number has been updated to a new value.
8. Comments regarding the 2012.11 or later firmware upgrade and re-defaulting of
system parameters.
4
Applies only to bootloader version 2011.32 and earlier. Bootloader version number can be viewed in
SYSTEM SETUP-->TESTS-->SYSTEM STATUS screen. More recent bootloader versions from 2012.05
onwards are able to recover from accidental power off at any stage.
http://sp3-xxx/upload
). To restore the web page the upload process should be
SP3 Software Upload Instructions
SP3 PREAMP / PROCESSOR
(or
4
.
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