Action Yes No
Step 4
Replace the display. Go to “Display removal (MX410, MX51x)” on
page 256.
Did this fix the problem?
The problem is solved. Go to step 5.
Step 5
Replace the cable connecting the UICC to the controller board.
Did this fix the problem?
The problem is solved. Go to step 6.
Step 6
Replace the UICC. Go to “UICC removal” on page 252.
Did this fix the problem?
The problem is solved. Go to step 7.
Step 7
Replace the controller board. Go to “Controller board removal” on
page 231.
Did this fix the problem?
The problem is solved. Contact the next level
of support.
Control panel button service check
Action Yes No
Step 1
Are the display and LEDs on the control panel illuminated?
Go to step 2. Perform control panel
service check. Go to
“Control panel service
check” on page 116.
Step 2
Enter Diagnostics mode and navigate to:
HARDWARE TESTS >Button Test
Did the device pass the test?
Go to step 4. Go to step 3.
Step 3
Replace the UICC. Go to “UICC (MX310) removal” on page 252.
Did this fix the problem?
The problem is solved. Go to step 4.
Step 4
Replace the controller board. Go to “Controller board removal” on
page 231.
Did this fix the problem?
The problem is solved. Contact the next level
of support.
7015
Diagnostic information
117
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