Try this
drive. google. com/file/d/1816VzdP9vLYn-mneAKXZSdzvx0L6cgkk/view?usp=sharing
No luck, but thanks a lot for your effort. I tend to think that may not be the correct FW because I should expect a white screen with the text "card?" instead of simply a white screen.
What I don't understand from a technical point of view is how could I trashed it updating it, if the Write Enable pin of the chip is shorted to GND... that would mean "no write enable", so no updateable.
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