jumpnkick

Ok, I was able to boot on maskrom mode! I had to cut the bottom shield (it is soldered, but I'm not using lora anymore so I didn't care). Just cut the shield right beneath the eMMC chip, and you'll uncover some pads. Short-circuit the middle big one (clk) in the attached photo with any gnd point, and plug the thing. That made the magic for me.

I'm in a similar situation. But I can't access my board anymore. I cannot put the board in maskrom mode anymore. Still stuck on this one?