@Clint Thanks Clint. That helps a lot. I seem to closely match the "Battery fully charged" line so I must have a defective unit. I'll go ahead and ask Thomann to send a replacement.

I appreciate your efforts in this. Thanks a lot!

@reidid789 I think you're right. I've done everything humanly possible...

@reidid789 Well, after 48 hours charging, screen is still dead. Will try again with a different charger. After that it is going back to store.

I just noticed a small hole on the back the my Sylphyo. Looks like a reset button hole, but I don't see any description of it in the manual.

Anybody know what this is?

@Clint Thanks for the reply! (BTW, I'm a longtime fan of your Native American Flute YouTube series and have a couple of flutes myself. I really love playing them. :)

I did see the thread you have elsewhere in this site about the current meter, and purchased one myself. My Sylphyo draws around .015A when the switch is off and 0.152 when the switch is on. Does match with your findings?

My current problem is that when I turn on the Sylphyo the screen is blank. Did you perform your 48hr recharge from a deep discharge state (battery totally dead)? If you did a recharge from a deep discharge state, were you able to see any info on the screen?

Other entries in the community forums seem to imply that the instrument goes dark until the 48hr charge is up. I'm getting close to 48hrs and the screen is still dark so I'm getting concerned that maybe the unit is defective.

As far as I can tell, when the Sylphyo is in this deep discharge state, there is no visible indication about how close to fully charged it is. Do you know of any way to tell the current amount of the battery charge?

(BTW - I didn't use the charger that came with the Sylphyo - I bought the unit from Thomann in Germany and it came with a Euro style plug that I couldn't use in the US.)

Thanks again for replying. I really appreciate your help!

I've read in other posts about the deep discharge state a Sylphyo battery can get in if it gets low on charge. I have a couple of clarifying questions :)

1. I read it has to charge slowly over a period of 48 hours. Does that time have to be uninterrupted? In other words, could I charge for, say, 24 hours, not charge for whatever reason for 1 hour, then charge for 24 more hours? Would that still result in getting out of the deep discharge state?
2. Must I use the 5v 2 amp charger that came with Sylphyo or would a normal phone charge work as well?
3. Does the Sylphyo, when in deep discharge state come to life before the 48 hours is up?

Thanks so much for your reply. I think a clarification of this process would really be of benefit to many of us!

@reidid789 I was pursuing that option, but then saw this post:
https://community.aodyo.com/topic/1429/sylphyo-problem-of-battery

This is exactly what is happening to me. So let's see if recharging for 48 hours will fix the problem...

@wwoodard8 Just checked and the unit with the blank screen attaches to Sylphyo bench and all the sensors seem to be working. Also the sounds come out fine. I am also able to blindly follow the steps to change a sound (hold Aodyo key, touch middle button, swipe on lower area) to get the sounds to change.
Would you agree all this seems to point to a defective unit that should be returned?

I am having trouble with the Sylphyo screen.
I just purchased a Sylphyo and it was working fine. At one point, I turned it on and the screen froze. I would touch the Aodyo button and nothing would change on the screen. Now the screen does not come on at all.
However, it connects to the Link, and sends MIDI out in response to breath. In other words, everything is working except the screen.
Do you believe this unit is defective? I am recharging now in case it is a battery issue.
Thanks for any replies!