AT&T 3.0 manual If the release number is the one you want, select Yes

Processor Problems

Console Display/Instructions Additional Information PC

7 If the release number is the one you want, select Yes.

Upgrade/Installation:

System will be down . . .

Do you want to continue?

Yes

No

Exit

(F2)

8If the forced installation is attempted while a line/trunk or extension is busy, the following screen appears.

System Busy - Pls Wait

Dial Code: xxxx S/P: ss/pp

Exit

(F5)

9Observe the progress screen and the error/status display LED on the processor module.

Upgrade/Installation:

Upgrade/Installation

In Progress.

The error/status LED should show a flashing L during installation of system software. Upon successful completion, the system performs a frigid start (System Erase). While the frigid start is in progress, an F shows on the error/status display.

If the installation of system software was unsuccessful, an error code is displayed and the system may not function. See Table 4–2and “Error Conditions During Forced Installation.”

4-24Control Unit Problems