4RF Aprisa SR+ User Manual - page 367
Maintenance | 365
Aprisa SR+ User Manual 1.5.3
USB Boot Upgrade Method
A single Aprisa SR+ radio can also be upgraded simply by plugging a USB flash drive containing the new
software into the USB A host port
on the Aprisa SR+ front panel and power cycling the radio.
To upgrade the Aprisa SR+ radio software:
1. Unzip the software release files in to the root directory of a USB flash drive.
2. Check that the SuperVisor USB Boot Upgrade setting is set to ‘Load and Activate’ (see ‘Software >
3. Power off the Aprisa SR+ and insert the USB flash drive into the host port
.
4. Power on the Aprisa SR+.
5. The software upgrade process is complete when the OK LED flashes green. This can take about 2
minutes.
The software will have loaded in to the radio current software version.
6. Remove the USB flash drive from the host port
.
7. Power cycle the Aprisa SR.
Login to the radio being upgraded and go to SuperVisor ‘Software > Manager’ on page 230.
The version of the uploaded software will be displayed in the Software Pack ‘Version’ field and the
current software version.
If the upgrade process did not start, the Aprisa SR+ could already be operating on the version of software
on the USB flash drive. This will be indicated by flashing OK LED and then the OK, MODE and AUX will light
steady green.
If the radio is not operating on the new software (after the power cycle), it could be caused by the
SuperVisor ‘USB Boot Upgrade’ setting set to ‘Load Only’ (see ‘Software > Setup’ on page 226).
In this case, go to SuperVisor see ‘Software > Manager’ on page 230 and tick the Software Pack ‘Activate’
checkbox and click ‘Apply’.
If any Display Panel LED flashes red or is steady red during the upgrade process, it indicates that the
upgrade has failed. This could be caused by incorrect files on the USB flash drive or a radio hardware
failure.
Software Downgrade
Radio software can also be downgraded if required. This may be required if a new radio is purchased for
an existing network which is operating on an earlier software release.
The downgrade process is the same as the upgrade process.