But even waiting for 4 minutes did not help.
Using here 6 WEMOS D1 Minis. 3 of them starting OK immediatelly after flashing - other 3 do not.
All flashing with ESP-Basic V3 is ending with the error messages / checksum errors.
I see only one obvious difference between them:
OK with WEMOS D1 MINI, MODEL ESP8266MOD ; VENDOR AI-THINKER
NOT OK: WEMOS D1 MINI, MODEL ESP8266MOD; VENDOR HYSIRY
Both seem to have ESP-12F-Modules.
I have the same problem with 3 NODEMCU-Clones LOLIN V3 - But Flashig those with LUA-Software using other flashers is OK.