mf1807 Posted December 23, 2013 Share Posted December 23, 2013 Hi, I have an M9 and the screen's display is all black. The lights light up but I am not sure if this is a toasted unit or just a firmware unit. I've never got the firmware updated and the unit is in second hand but has no obvious signs of wear. My issue looks identical to this guy's problem: Will a firmware upgrade fix it? I cannot see how to do a factory reset. Please help! :( Quote Link to comment Share on other sites More sharing options...
mf1807 Posted December 23, 2013 Author Share Posted December 23, 2013 Tried reinstalling the firmware... tried installing old firmware and even then new firmware. The guy on the phone asked me to open the box and look at the ribbon cables which all appear secure. This unit was purchased from an authorized retailer 2013NOV29... making me screwed out of warranty by about 3 weeks. :( Quote Link to comment Share on other sites More sharing options...
smrybacki Posted December 23, 2013 Share Posted December 23, 2013 Sounds stupid, maybe, but is there a contrast adjustment? Quote Link to comment Share on other sites More sharing options...
mf1807 Posted December 24, 2013 Author Share Posted December 24, 2013 Not that I can find. So disappointed this Christmas. It doesn't seem like anyone knows what is causing this issue. The unit still functions fine, merely a screen issue Quote Link to comment Share on other sites More sharing options...
mf1807 Posted December 25, 2013 Author Share Posted December 25, 2013 An authorized Line6 center says they can peek at it... all time on their bench is 65$ an hour...... Not sure how much it'll be to send it off just yet. The effects still work so I'm thinking it's a screen issue which may require a replacement. Sure wish I could find some answers... Local authorized guys aren't available to look at it until Jan 2.. :( Quote Link to comment Share on other sites More sharing options...
goodthinking Posted January 23, 2014 Share Posted January 23, 2014 There is in fact a display adjustment. In 'Setup' mode, go to the 'Mid/Gate/Display' setting. Top right knob in that window adjusts the contrast display from faded out almost completely (counter-clockwise) to very dense (clockwise). Mine looks about right at what would be around halfway. Quote Link to comment Share on other sites More sharing options...
pjrodz Posted January 27, 2014 Share Posted January 27, 2014 try removing the rubber feet and changing the black painted screws to unpainted ones. solved my problem with my M5(so far). checkout this link http://line6.com/supportarchivenew/thread/88421 Quote Link to comment Share on other sites More sharing options...
alfbarroso Posted April 7, 2015 Share Posted April 7, 2015 Hi guys, would you please give me a little help? Something similiar have happened to me, but...A little bit different. I turn M9 on, and all I see in the display is: FLASH - SDRAM - POTS - CAN ANYBODY KNOW WHAT THE HELL IS GOING ON??? Thank you all. 1 Quote Link to comment Share on other sites More sharing options...
alfbarroso Posted April 7, 2015 Share Posted April 7, 2015 By the way: no effect working (guitar is bypassed) Quote Link to comment Share on other sites More sharing options...
tombonator Posted August 6, 2017 Share Posted August 6, 2017 I have the exact same problem. I also can't seem to update the firmware either (having same issues as this guy http://line6.com/support/topic/8314-m9-firmware-update-what-is-required)...not sure if this is midi problem or because the m9 is bricked... I'll keep trying, and try the rubber feet thing soon. I'm extremely disappointed, as have literally played with this twice before this happened and was really loving it. Note that I think Line 6 are aware of this issue as this is on the first page for support (http://line6.com/support/tickets/): "Please contact a service center near you if your hardware exhibits one or more of these symptoms: ... No display or black boxes in display" ... but no information on any fix in the forums. I'm determined to fix this and report back if I have any progress. Quote Link to comment Share on other sites More sharing options...
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