Question about Logitech Harmony 550 Remote Control
Batteries were running low so took them out - left them out for a few hours. When new batteries were put in the display says Harmony safe mode and will not respond to any buttons.
Remove one battery. press and hold the #2 while replacing the battery. hold the #2 until you see "upgrade success". press activities and you're back in business.
Posted on May 02, 2009
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Posted on Jan 02, 2017
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