# DoT3k - Issue? **URL:** \ **Category:** Support\ **Created:** [September 23, 2014, 10:44am UTC](https://forums.pimoroni.com/t/dot3k-issue/72 "2014-09-23T10:44:31Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![CornishSteve](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/cornishsteve/32/39_2.png) [@CornishSteve](https://forums.pimoroni.com/u/CornishSteve)\ **Post date:** [September 23, 2014, 10:44am UTC](https://forums.pimoroni.com/t/dot3k-issue/72/1 "2014-09-23T10:44:31Z")
Hi to all I’ve recently received my Display-O-Tron 3k and have set it up following the information from the Git repository, however I have noticed that when I run backlight.rgb(255,255,255) the far right LED has a blue hue (I was expecting it to be bright white like the other 2 LED’s) and seems to flicker on / off after a few seconds. As I’m a new user I cannot attach a photo of the issue - but i’ve uploaded a copy of the photo to here [http://i60.tinypic.com/2zsyxy9.jpg](http://i60.tinypic.com/2zsyxy9.jpg) if this helps illustrate my issue. Has anyone else experienced this? I am doing something wrong or does my board have an error? Any help would be greatly appreciated. Cheers Steve. ---
**Author:** ![jon](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@jon](https://forums.pimoroni.com/u/jon)\ **Post date:** [September 23, 2014, 1:58pm UTC](https://forums.pimoroni.com/t/dot3k-issue/72/2 "2014-09-23T13:58:50Z")
Hey Steve, Sounds like a fault with the unit - can you confirm your order number and we’ll arrange a replacement for you! ---
**Author:** ![CornishSteve](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/cornishsteve/32/39_2.png) [@CornishSteve](https://forums.pimoroni.com/u/CornishSteve)\ **Post date:** [September 23, 2014, 2:21pm UTC](https://forums.pimoroni.com/t/dot3k-issue/72/3 "2014-09-23T14:21:20Z")
Hi Jon Thanks for the prompt reply - my order number is 14970. Cheers Steve. ---
**Author:** ![jon](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@jon](https://forums.pimoroni.com/u/jon)\ **Post date:** [September 23, 2014, 2:32pm UTC](https://forums.pimoroni.com/t/dot3k-issue/72/4 "2014-09-23T14:32:17Z")
Got it, are we OK to send a replacement to the same address? ---
**Author:** ![CornishSteve](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/cornishsteve/32/39_2.png) [@CornishSteve](https://forums.pimoroni.com/u/CornishSteve)\ **Post date:** [September 23, 2014, 2:45pm UTC](https://forums.pimoroni.com/t/dot3k-issue/72/5 "2014-09-23T14:45:48Z")
Yeah that would be great. Do I just send the faulty board back to your main address or is there a return envelope / RMA procedure? ---
**Author:** ![jon](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@jon](https://forums.pimoroni.com/u/jon)\ **Post date:** [September 24, 2014, 1:43pm UTC](https://forums.pimoroni.com/t/dot3k-issue/72/6 "2014-09-24T13:43:02Z")
If you’re OK to drop it in an envelope and send to the address on our website that would be much appreciated! ---
**Author:** ![CornishSteve](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/cornishsteve/32/39_2.png) [@CornishSteve](https://forums.pimoroni.com/u/CornishSteve)\ **Post date:** [October 6, 2014, 8:30am UTC](https://forums.pimoroni.com/t/dot3k-issue/72/7 "2014-10-06T08:30:46Z")
Hi Jon Thanks for all your help - I received the replacement DOT3K last week and it works lovely. I’ve only just had a chance to drop the original DOT3K in the post back so you should get this in the next couple of days. Thanks again for all your help - fantastic products and great customer service - can’t wait to see what other new products you guys bring out :) ---
**Author:** ![jon](https://avatars.discourse-cdn.com/v4/letter/j/3bc359/32.png) [@jon](https://forums.pimoroni.com/u/jon)\ **Post date:** [October 6, 2014, 4:49pm UTC](https://forums.pimoroni.com/t/dot3k-issue/72/8 "2014-10-06T16:49:02Z")
Thanks Steve! Plenty more to come, I promise… :-)