Thinking out out…wled could go the route of tasmota and release “factory” bins which I assume have all the bins bundled at the correct addresses so one can just flash a single file to 0x000.
You are welcome to make a contribution and @lost-hope (AKA Sören) will be happy to include it.
But be aware that you will need to make it each time a release is made or prepare automated procedure.
Your device does not go into firmware upload mode. Period. You will need to figure out why.
Some pinned some not. I expect you to be vigilant and do a thorough search.
Yes i have recently flashed LolinS2 from the site but It only worked with the old method ,
here WLED installation , try it out and please wait
a while after flashing for the ap to appear