Frequently asked questions (FAQs)

Welcome to the AT&T product support center. To get started: select a product category from the left, or enter your model number below to go straight to support and troubleshooting for that product.

Product Troubleshooting

Problem:

My base display is blank. How can I fix this?

Solution:

Tip 1 of 3

You can adjust the display contrast:

Step 1: Press OPTIONS until SET CONTRAST is displayed.

Step 2: Press ▲ or ▼ to raise or lower the screen contrast. There are 4 contrast levels.

Step 3: Press CLEAR to exit programming mode.

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