This is an old revision of the document!
There's something very nice about ESP32 Wroom modules: you can use fixtures to quickly debug things, remove a module, solder it and viola, you have something working. Or a bad board. Mostly that.
And I've been using a fixture by DIYMall for some time at this point. It's easy to buy on AliExpress, for example, [here](aliexpress.com/item/1005008525778779.html), it works without hassle. It will also make you trace all pins unless you have a reference.
I sat with a scope and recorded everything I have found so you don't have to.