Today 2 vertical lines are missing again on my M3902, but hey - its still much better than it was.
For those interested in a more permanent DIY solution check out this blog.
It details techniques to fix old cellphone and calculator LCD's but I'd think the same will apply here.
Especially read...
This is a follow-up to this thread (thread798-1656401):
It seems failure of the LCD's on Avaya's M-series phones are quite common. Typically the LCD has missing lines or pixels and sometimes fade in contrast.
It seems the fault lies with the LCD's ribbon cable partially breaking contact with...
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