Acer eMachines E720 Series, Service Manual

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164 Chapter 5
BIOS Recovery by Crisis Disk
BIOS Recovery Boot Block:
BIOS Recovery Boot Block is a special block of BIOS. It is used to boot up the system with minimum BIOS
initialization. Users can enable this feature to restore the BIOS firmware to a successful one once the previous
BIOS flashing process failed.
BIOS Recovery Hotkey:
The system provides a function hotkey: Fn+Esc , for enable BIOS Recovery process when system is powered
on during BIOS POST. To use this function, it is strongly recommended to have the AC adapter and Battery
present. If this function is enabled, the system will force the BIOS to enter a special BIOS block, called Boot
Block.
Steps for BIOS Recovery by Crisis Disk:
Before doing this, one Crisis Diskette should be prepared ready in hand. The Crisis Diskette could be made by
executing the Crisis Disk program in another system with Windows XP OS.
Follow the steps below:
1. Power Off failed system.
2. Attach a USB floppy drive to the failed system.
3. Copy jalb028.wph to tool's folder and rename it as BIOS.wph .
4. Execute wincris.exe to start the Crisis Disk Build.
5. Select Removable and click Start .
6. Select Format Disk and click Start .