Nortel Meridian 1 Option 11C Upgrade Manual page 186

Page 186 of 224
553-3021-250 Standard 7.00
Upgrade Option 11C/11C Mini software to a new release
Procedure 20
Revert to previous software procedure
1 If you need to, install the Software Delivery (PCMCIA) card.
a Locate slot A in the PCMCIA socket in the faceplate of the
Option 11C NTDK20 SSC or the Option 11C Mini NTDK97 MSC
card.
b Carefully press on the PCMCIA card until it seats tightly.
Note: This Software Delivery card must be the same one that you
used to upgrade this Option 11C/Option 11C Mini. You cannot use a
Software Delivery (PCMCIA) card used to upgrade a later Option
11C/Option 11C Mini. The Security ID no longer matches the original
system and the "undo" function cannot work.
2 Select the method of starting the Software Installation Program.
There are two methods of starting the Software Installation Program:
— Use the UPGRADE command in Overlay 143. Continue to Step 3
on page 186.
— Press Ctrl+I when prompted during a SYSLOAD (go to Step 4 on
page 189).
3 Log in to the system.
a Type LOGI and press <CR>.
3$66"
b Respond to prompt.
Note: The response to
response shown below is an example only.
PASS?
0000 <CR>
LD 143 <CR>
UPGRADE <CR>
c Look for the following message:
62)7:$5( ,167$//$7,21 352*5$0
• If the message displays, go to Step 5 on page 187.
• If the message does not display, repeat Step 3 on page 186
(this step) and make sure you enter correct information.
April 2000
displays.
3$66"
is distinct in each system. The