Saber only responsive when connected to PC

[The_Ingman]

I recently updated the sound font and configs on a recently purchased TXQ Fallen Order saber but I’m running into an issue where the saber won’t power up unless it’s connected to my PC via MicroUSB.

The new config and fonts work great but as soon as I disconnect the board from MicroUSB the saber becomes totally unresponsive. The boot and reset buttons on the board do nothing when not connected to PC.

Any ideas on what I can do to remedy this? It’s not an issue with the battery as I charged it overnight, though I did leave it in the first time I connected it to PC so I am a little worried that I may have damaged something. I reflashed the board this morning with the battery removed but despite a successful upload the board became unresponsive once it was no longer connected to my PC.

Thanks in advance for your help!

[NoSloppy]

IS this the same sort of issue here in this thread?

New Proffie 3.9 Board Not working properly

I’ve just received a Proffie 3.9 alongside my saber order, and was working on getting things together and configured. The problem I’m having is rather complicated so I’ll give a brief explanation followed by the steps I have followed in testing. Upon finishing the wiring of all the components and double checking everything, I attempted to toggle on the killswitch and power the board for the first time and didn’t get any sound or light. The only thing that signified anything was that the bluetooth LED was blinking. I flipped the killswitch off and checked all my connections and they looked good. Flipped it back on and got sound/light etc, but any time I turned it on after this, again there would be nothing but the BT LED. I thought maybe there was a misconfiguration on the board, so I worked with some people on the discord to create and push up a new configuration to my proffie, but ended up at the same results with just the BT led being the only consistent thing. However, after a lot of trial and error, I have found a consistent, if inconvenient way to get the saber in the correct state. I’ve also used ryryog25’s proffie config tool to push a new configuration, and do bootloader recovery. When initially powered on via USB/Battery: BT LED comes on, nothing else, when connected via USB there is no proffieboard or bootloader in my devices When holding BOOT and pressing RESET Bootloader mode starts as expected and appears in my devices When holding RESET and pressing BOOT Over USB, this boots the saber into the appropriate mode. I get sound, light, OLED, everything. However, over battery, this does nothing. I am unable to get the saber to turn on correctly over battery at all. The only thing that I can do is connect the battery, connect USB, and then do the RESET and BOOT method to get it working. At which point I can disconnect the saber from USB and battery will keep it running correctly no problem until I turn it off again, at which point it goes back to the standard BT LED on and nothing else. Also, to mention, in order to get the saber working, I have to put it in bootloader mode first, then reset, then reset and boot. I’m at a loss for what could be causing this. Any help would be very appreciated.

[The_Ingman]

It does seem like this is the same issue. I must have somehow damaged that bit while I was trying to access the boot/reset buttons on my chassis.

Looks like I’ve gotta get the board repaired. Thanks for your help!

[profezzorn]

It could just be a poor battery connection too.
Two questions:

1. what is the voltage between batt+ and GND? (both measured on the board itself.)
2. Does it stay on if you remove USB power?

[The_Ingman]

It does stay powered on when USB is removed. I can power the blade off and cycle between fonts and it seems to work as long as I’m interacting with it, however if the blade is off for longer than a few seconds it becomes unresponsive and needs to be plugged into USB in order to power it on again.

I don’t have access to a multimeter at the moment but I’ll go pick one up and report back once I’ve measured it.

[profezzorn]

That really does sound like a D61 issue.

[profezzorn]

It seems suspicious that D61 and boot are fairly close to each other.
Makes me wonder if there is a cracked solder, or a bad PCB involved or something like that.

[The_Ingman]

Yeah that’s what it sounds like. I just measured the voltage between the GND and Batt+ pins and it was right around 4 volts. Does that sound about right?

[profezzorn]

Yep, that’s generally what a fully charged battery should be.