Naeblis

Just to finish this one off - E&M wrote it was a terminal power supply failure on their work sheet, and so to fix it... they simply gave me a brand-new Helix as a replacement! Arrived back with me yesterday afternoon after reaching the dealer on Friday afternoon, and all is working well now. Left it on for a good few hours yesterday evening (probably about 6), just to be sure ;) All under warranty - the only cost to me was the initial postage back to the dealer. Result! If you have this issue, see about a warranty claim immediately!

Thanks! Yeah, I emailed them and they seemed decent. They asked me to go through the dealer because I was still in warranty, otherwise I would have shipped it down to them directly. Fingers crossed the dealer sends it on to them quickly (it should arrive at the shop tomorrow), and we'll see from there.

Replying to myself. My Helix has now been sent back to the retailer for a warranty claim, as it turns out in the UK and Europe, Yamaha offer a 2-year warranty on all Line 6 electronic products, so I was a few months still in date. E&M Electronics (http://www.eandm.co) in Milton Keynes are the only official Line 6 repair centre in the UK, and they prefer to work via your retailer sending the item to them (although, if you're out of warranty they will deal direct if you still have your receipt). Their website is pretty damned awful for giving you any contact info other than their address and a phone number, but it appears to be undergoing a long-overdue restyle right now, as it's suddenly different from when I found their info the other day ;) Might take a little while to get it back, but fingers crossed my Helix will be fixed in the not-too-distant future.

Yeah, I have been trying to find a SR250 in stock to see how it compares to my 270. The only place even listing it just now (according to Google) is pmtonline.co.uk, but even they don't have stock - they say it's "available to order" and "should ship in 5 days". They also price the new finishes for a lot more than the standard black, and I'm not paying £300 extra for the trans black burst I would like to check out ;)

Bit late to the party for the OP, but should anyone else have the same question and read this in future... "Think covering some trivium from old days to killswitch engage/machine head flying to arch enemy tuning and goofing around old SOaDown tunes." is a fair chunk of my Rocksmith playlist and Shuriken + Helix LT + Yamaha HS5 studio monitors via the XLR outs is awesome for this, as it all sounds great and I step on a stomp and I am instantly in the tuning I need - so I have loads of presets with forced tunings going from E standard to A-drop-G ;)

Mine has started doing this recently, now that I am using it for longer periods of time per session because have also started using the Helix as a USB out from my PC so I can play music and movies through my studio monitors. It does this after maybe 4-5 hours of the unit being powered-on. I can also hear a quiet burst of static through my studio monitors in time with the LED flash. I turn off the power switch off for a while, and then it resets itself and is okay again - however, this is not a short amount of time (it would be the end of any gig) and attempting to power the unit back on too soon just results in the flashing EXP lights. Actively using the Helix and changing presents, etc., or simply turning it on and letting the unit idle doesn't matter - both will reproduce after the same 4-5 hours. Mine was originally 2.80 when the issue started, but updating to 2.82 didn't change anything. I assumed it was some sort of overheat, but the unit is still completely cool to the touch all over, and it's not enclosed in a unit or sat on carpet or anything like that anyway, so an overheat seems odd. I can't see any physical signs of damage. It is always connected to the PC via the USB In/out, both XLR outs to studio monitors, and the 1/4 out back to the PC via a Rocksmith cable during this time. Having only the power cable attached and letting the unit idle would reproduce, and unplugging everything except the AC cord does not allow the unit to start again any sooner. I had tried 1, 5, 6, and 7 on this list and none of them had any effect: https://line6.com/support/page/kb/effects-controllers/helix/helixrackltfxstomp-reset-procedures-and-troubleshooting-tricks-r768/ EDIT: Support said to find a service centre and get the unit looked at, as it sounds like a hardware fault. Yesterday, my unit seemingly fully died as per the original poster's and will no longer turn on at all. Changing the AC cord for a known good one doesn't make any difference.

Thanks - I got tripped up by this one also...