Bangle.js App Loader returns "Upload failed, Unexpected response"

Got it. I needed to set the watch button, so that I disconnect before in the IDE and then call the method. Now there is another boot screen. I will report if all is fixed.

My code for resetting:

setWatch(() => {
  E.showMessage("You\npressed\nthe middle\nbutton!");
NRF.disconnect();NRF.restart(function(){
poke32(0x4001e504,2);while(!peek32(0x4001e400)); // enable flash erase
poke32(0x4001e514,1);while(!peek32(0x4001e400)); // erase whole uicr
poke32(0x4001e504,1);while(!peek32(0x4001e400)); // enable flash writing
poke32(0x10001014,0x7A000);while(!peek32(0x4001e400)); // set bootloader address 
poke32(0x10001018,0x7E000);while(!peek32(0x4001e400)); // set mbr settings
poke32(0x1000120c,0xfffffffe);while(!peek32(0x4001e400)); // NFC pins as GPIO
poke32(0x4001e504, 0);while(!peek32(0x4001e400)); // disable flash writing
});
NRF.restart();}, BTN2);

Update: I just needed to flash a stable version and now it seems to work. I could connect and upload apps via App Loader. Thank you so much.