It’s connected on a bench power supply and has external antenna connected.
I have soldered pullup resistors on GPIO0, 2, EN, RST, and a pulldown on GPIO15.
Normally it consumes about 70mA. It enters sleep mode but it doesn’t waking up fully. It starts getting 30mA and hangs there. I’ve read about zombie mode and that’s probably where I’m stuck to.
I tried to connect GPIO16 with RST using a jumber, or resistors from 200 to 2kΩ, or a rectifying diode(didn’t have a schottky in hand) with no luck. I also tried to remove the pullup resistor on RST.
I checked with a simple PC oscilloscope and GPIO16 is high during sleep. Sometimes I was able to catch a small low pulse (about 150μs) but even then the ESP wasn’t able to boot. Most of the times I don’t see the small low pulse from GPIO16. I think that I’m able to see this pulse if I probe GPIO16 without connecting it to RST.
What else could I check?