Firmware UpdateAttention: The SMS firmware update utility does not support thecombined image update process. It is recommended only for thosesystems that cannot boot AIX. Detailed instructions on using the SMSutilities to update system and service processor firmware can beobtained from the following Web site:http://www.rs6000.ibm.com/support/microIf you are not able to obtain firmware update images or instructionsfrom this Web site, contact your service representative.If the firmware update image is available on your network fromanother system, see Appendix E, “Firmware Updates”, on page 349for instructions on updating the system and service processorfirmware using a combined image from the AIX command line.Firmware RecoveryIf a troubleshooting procedure has indicated that the system firmware unit has beendamaged, it may be possible to recover it. For example, if the system hangs duringstartup with E1EA displayed on the operator panel, the system firmware has beendamaged but may be recovered.To recover damaged system firmware, do the following:1. Create a firmware recovery diskette. This must be a 3.5″ high-density (1.44 MB)diskette that has been formatted for DOS.2. Obtain the system firmware update image file from one of the following sources:a. From the Web address: http://www.rs6000.ibm.com/support/microb. From a service representative if you cannot access the Web address.3. Copy the system firmware update image file to the recovery diskette, naming itPRECOVER.IMG. The file must be written in DOS format.4. When the system stops booting, for example at E1EA, insert the recovery diskette. Ifthe diskette drive LED does not light up, power the system unit off, then back onagain.5. If the recovery procedure is successful, the system will continue starting and willdisplay checkpoints of the form E1XX.6. Enter the System Management Services menu. When the keyboard indicatordisplays, press the 1 key if the system console is an ASCII terminal. If the systemconsole is a graphics display and directly attached keyboard, press the F1 key.7. When the main menu displays, choose Utilities, then perform an update of thesystem firmware by following the prompts that are displayed.Attention: A companion service processor firmware update may be required. Seethe Web site at http://www.rs6000.ibm.com/support/micro to get additionalinformation on companion levels and detailed update instructions.238 Service Guide