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Greg A.
Greg A., Engineer
Category: Phone Systems
Satisfied Customers: 2865
Experience:  Working with Electronics for 25+ years.
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Just bought ML17939 phone. Was setting up speed dials, etc

Customer Question

Just bought ML17939 phone. Was setting up speed dials, etc when the display
went blank. The phone still works, sending and receiving, but no display.
What can I do?
Submitted: 1 year ago.
Category: Phone Systems
Expert:  BigDish101 replied 1 year ago.

Have you tried replacing the batteries and have you verified that the power adapter is connected and is plugged into a known working outlet?

QuickStart Manual:

https://cdn-media-att.vtp-media.com/media/p/document2/products/%7B47D63FA7-8CD5-4167-AF0B-961F378378DF%7D/ML17939_QSG_i6.0_20150115.pdf