Prevent user code running?

[knflrpn]

Is there a way to stop user code from running?  Because mine seems to causing problems.

On power-up, the board properly does a Particle.publish() that I have in setup(), but after that, the dashboard shows a constant stream of "device went offline" / "device came online" at around a cycle per minute, and trying to upload new code doesn't work.

Would appreciate any help.  Thanks.

[exeng]

Try putting your Oak in Safe mode by connecting pin 1 to ground, cycle power, wait a few seconds, remove the pin 1 from ground. You should see a repetitive burst of 3 flashes indicating that you are in safe mode and should now be able to upload a new sketch.

[knflrpn]

I think I've tried this, but can you tell me, is pin 1 the one marked "EN"?  If so, then when I do that, nothing happens until I release the pin, at which point the same things I've described happens.

[knflrpn]

Ah no, it's the one marked "P1".  Got it working again.  Thanks!