Perhaps someone could outline or picture how they made their boards work? Please?
Thanks chaps this has caused many hours of anguish! And a few notes to the supplier who was as useful as a chocolate teapot.
I used a jumper from Vcc to CH_EN and a 9-11K pull-up resistor for GPIO0. The ESP boots but the pull-up does not seem to trigger the relay.
I have the same module and faced the same problem while considering it was making no sense to have to wire GPIO. Anyway, it has been the only solution I found to get the module booting.
Have you been further yet? I am newbee here and all experiences for the basic steps are interesting for me.