Which brand & type of SD card ?
If I remember correctly, you had an original green Regen like me (hope I got that right) ... has your amber upgrade board for the Regen arrived ?
*** Side note to minimise any confusion to other readers of this thread ... the first 100 early adopters had "Green" Regen in April 2015 (???) ... the Regen was further tweaked to have an "Amber" LED with further significant improvements by adding several capacitors and such (roughly said to be about 40% better). The early adopters were well taken care of .... very generously in fact ... with a fair & just deal (to the consumer) by UpTone Audio ... who charged a very small amount for us early adopters to get the "latest & greatest" and we still got to keep the original "Green" Regen to do with what we want. Short answer .... we were very fairly treated ... outstanding in fact ... by UpTone Audio. Oh, all the Regens shipping have been amber for a very long time now, it was just us rabid early adopters who got the version with the green LED.
Really short answer ... don't worry, if you are buying or have already bought a Regen, it is the amber version. ***