iLO Amplifier upgrade from 1.50 to 1.55 fails

[jkk1234]

When I attempt to upgrade the appliance (logged on as Administrator) the progress bar goes to 20%. After a minute or so I receive the error message 'System Update Failed'. I have tried an automatic update as well as downloading the 1.55 update and doing it manually. In both instances, the update fails after hanging at 20%. 

[AmRa]

Deploy fresh iLO appplifier 1.50 and check by upgarding iLO appplifier from 1.50 to 155.

If it works, take configuration backup from existing iLO applifier 1.50.

Deploy fresh iLO appplifier 1.50.

Restore configuration backup on new deployed iLO appplifier.

Later check by updating  iLO appplifier from 1.50 to 155.

For iLO Amplifier Pack configuration Backup and Restore, please refer iLO Amplifier Pack 1.55 User Guide (page number 137 - 139)

https://support.hpe.com/hpesc/public/docDisplay?docId=c05384285