Hobbywing 120A 1s speedo
 

I seem to have done something to mine hopefully not terminal. I loaded the latest software to my program box and then loaded the V3 508 "blinky software to the speedo all seemed to go just fine so switched off and disconnected, plugged the speedo back into the rec and switched on I get a red light on the speedo for a while then a flashing green one accompanied by two beeps which keep repeating and nothing works. Sounds like the low voltage alarm but checked the voltage at the point where the power wires are soldered in and I'm seeing 4.2v
Any ideas how do I reset it or is it terminally cream crackered???

Have you tried reflashing it with a different software?

Another thing you could try would be to repeat the setup to the transmitter.

I had similar problems with the 60a re do the software and each time you update it do it twice of that makes sence

Try plugging in a 2s pack, then resetting the LVC for a 1s pack. Worked for me :D

as above Keith, plug in a 2S Lipo and turn off the low voltage cutoff, Come over tomorrow morning and I'll sort it out for you if you're still having troubles !

Yes you have to do it twice :thumbsup:

What Chris says. The 1S does not work with the voltage cut-off set to 3v. HW are working on a fix. Always set the 1S to 'no protection' when doing your software update before you disconnect the PC and then it works straight away. HTH :)