Not to make this another TinyHawk 2 thread, but...

I need to understand if there is a way to make sure that I did not fry the power-distribution portion of my All In One board.

In my efforts to continuously learn I was performing a voltage calibration within BetaFlight on the quad when I was asked to check voltage under load. Now, I say "rookie" as I am new to flying, but I am by means no amateur when it comes to electrical testing for the past decades. So with BetaFlight connected, the 1s battery is connect, probes were held in place; I turned to the meter, in doing so I touched the probes together hearing a mild 'pop'. Voltage drops to Zero on both the meter and on BetaFlight.

I disconnect the battery fearing lipo pop battery is cool and holding charge. The lights on the TinyHawk is are still lit while on USB like nothing has happened. I disconnect from USB and plug in the batter again. No tones, no lights, nothing.

Are my fears that I fried the power distribution portion of the board correct (since I can still connect to the FC portion via BetaFlight), or is there a small fuse that I may have blown?

Any assistance would be helpful.

Checks I have done (besides what I have listed above):
-Connected via BetaFlight, accelo and gyro are fine.
-CLI functions: 'status' indicates 0.1V in both battery connect and disconnected state
-BLHeli connects and reads the Setup just fine.

All signs are pointing to the battery connection point of the board. I just do not know where to go from here.

You've likely fried the 5V regulator and/or the Schottky diode on the FC. With just a LiPo plugged in (no USB cable), check to see if you are getting a reading of 5V on any of the 5V pads.

how does the battery connector look like? if you got a black pin clean it.
mesure continuity between conector and lipo in pad on the board could sort out an issue there

i guess the 3startup beeps would happen if its the regulator, seems to me its more likely the powerdistribution

(26-Jan-2021, 11:02 PM)SnowLeopardFPV Wrote: You've likely fried the 5V regulator and/or the Schottky diode on the FC. With just a LiPo plugged in (no USB cable), check to see if you are getting a reading of 5V on any of the 5V pads.

None. It's acting like it is shorted between the pos+ and neg- of the battery. On the multimeter the battery is 4.1v unplugged, plugged into the quad I detect 0v across the solder pads for the battery (the original spot that I slipped and shorted). And no voltage drops on any of the +5v pads.

(26-Jan-2021, 11:05 PM)hugnosed_bat Wrote: how does the battery connector look like? if you got a black pin clean it.
mesure continuity between conector and lipo in pad on the board could sort out an issue there

i guess the 3startup beeps would happen if its the regulator, seems to me its more likely the powerdistribution

Absolutely a rookie mistake!

I checked continuity across the pads (capacitor between pos+ and neg- allows it to pass). Then I looked inside the plug to check between pins and pads....

Apparently the short welded OFF the neg- pin of the jst-ph2 connector, I check all of the batteries for the pin and it must have fallen out somewhere. I took the spare male ph2 connector from the pack and jumpered the broken connector. It's alive!

Thank you all for your patience and assistance. I will solder and reassemble the quad tonight. Happy flying!

For all of you on the edge of your seat, I replaced the jst-ph2 connector with the spare. Right as rain.

Happy flying my friends.

Looks like you got lucky (this time). Happy flying