Fading Display on NAD M3


Hello Everyone
I just noticed that display on my NAD M3 is fading in upper
left and lover right corner. Also letters BALANCE; TONE DEFEAT; SPEAKERS A; BI AMP 40,60,80,100Hz are almost
unreadable. Has anyone encountered similar problem. Is that
just the display or something else.
I would really appreciate any opinions about this problem.
Thanks in advance.
kiza
After 1.12 firmware , and let burn for 12 hours , i notice local improvement , but not all display zones are well restored

I have also discover that:

Press Listen + balance =  display of the firmware version

Press Balance + Biamp when using the amp = Light up all VFD elements without time limits

cheers 
Hello, 

I do have the latest version of the NAD M3 software (website) however I cannot find any manual explaining how to update it. Can anybody send a link where the manual is posted?!

Appreciate your help. 


The manual on how to update the M51 is supplied with the new firmware. I do not have a clue how to do this on a M3