October 26th, 2012, 07:29 AM
Join Date: Mar 2010
Device(s): Nexus One, Nexus 7
Carrier: Mobile Vikings
Thanked 93 Times in 84 Posts
That's very odd. Have you installed tba (trackball alert) at any point? Mine only flashes red when I missed a call, but that's because I have it set up to do so.
What's funny is the N1 has the hardware to support a whole color spectrum in the trackball, but never got official software to support it. So if you haven't rooted or took any steps to unlock this feature, my guess is the red led short circuited.
When I took apart mine, I noticed beneath the trackball is an absolute dust magnet. Filth collects beneath it really easily.
There's a really good chance a burst of compressed air onto your depressed trackball wil solve your problem, clearing out some of the most recent smut that's likely to have gotten your red led to short circuit.
Your other option would be opening it up, but the bottom part prys off really difficult.