Nice nano will work when flashed, but if unplugged and plugged back in it will no longer work. And doesn't matter if it's socked or not, shorting reset and ground does nothing. Holding reset and 3.3 puts it into bootloader but only when held, and if you short 3.3 and ground it opens and stays in boot loader?? What is happening...
#Odd behaviors coming from Nice!Nano v2
wraith eagle
hushed cliff
Random notes:
- assuming you have no battery connected
- not getting the blue double blink on USB insertion is very weird. that's a red flag for me about something being wrong with bootloader or hardware
- you should never short RST to VCC or RAW, only to GND. When you short, it might be crashing and resetting itself, which is why you get the double blink (weird it does that then, but not on USB)
Given the weird symptoms, I'd assume that hardware is borked to some extent
You can try reflashing the bootloader but I wouldn't have high hopes on that fixing things
wraith eagle
Already reflashed nothing happened.
wraith eagle
Given the weird symptoms, I'd assume that hardware is borked to some extent
I now notice that the nice!view header gets warm fast. That must be the issue
Could this have destroyed any components? Or just caused weird symptoms
hushed cliff
The video you showed seemed pretty barebones already, just the controller and PCB
Does it act the same if you remove it from the PCB?
wraith eagle
Yes it persists if I unsocket itbut I haven't tried reflashing the bootloader when it's off,
It is very barebones, one single switch controller
I've plugged in the nice view atleast once so hopefully that isn't physically messed up either ...
Visual inspection of my soldering doesn't look like there's any shorts but it might be in between the header and the board for the nice view
wraith eagle
Does it act the same if you remove it from the PCB?
But i forgot to mention that very first time I ran the boot loader everything worked fine (as in the lights and reset) until I flashed the firmware
With no changes made to the PCB
hushed cliff
There isn't anything in that config that can break the controller
maybe there was an ESD event when you plugged/unplugged, but I am making random guesses right now
wraith eagle
@hushed cliff Could this be it? it appears SCK and VCC are shorted thru high ish resistance
(Sorry for double ping I sent the wrong video
hushed cliff
If they are connected to the pins on the controller when you are measuring this, it might be expected that they are connected with resistance between them
If this is on a disconnected PCB, then that seems like a problem with the PCB
hushed cliff
Disconnected, meaning the controller is removed from the sockets
Maybe you have flux residue or something?
wraith eagle
That could definitely be it
What seems to happen with the nice nano when disonnected is the blue led flickers and it keeps connecting and hen disconnecting over and over again (before and after reset settings/reflash
hushed cliff
It almost looks like a USB port issue
Like intermittent connection
When you touch it, it sometimes connects again
could be why shorting with tweezers caused things to happen in the first video
wraith eagle
I was thinking that but even with different usb cable it's the same, and without touching it at all
Maybe shot capacitor on the board? Idk
wraith eagle
Maybe you have flux residue or something?
Ill try to clean
hushed cliff
Could be the port on the controller
wraith eagle
Ill see waht happens if i clean the controller. Maybe theres a teeny solder ball floating around messing things up.
Other than that not much i can do besides buy a new one (if reflowing the oled header and cleaning board doesnt help)
wraith eagle
Could be the port on the controller
hushed cliff
I think it is time to put that controller to rest
wraith eagle
I think it is time to put that controller to rest
😭 😭 it just woke up
wraith eagle
Maybe you have flux residue or something?
i got my new board and its working but inconsistantly spamming a random key (usually .). Could it be flux residue? I did not know flux was conductive