Hello, I know there are a lot of discussions like this already, I’ve read them over but I still don’t know the solution to my issue. I use a clone USB Asp programmer (fischl compatible), it worked in the past, but today it dropped a verification error during bootloader burning; and all further try …

The fuses may be set to values that disable ISP programming. If you have the patience for it you can try using high voltage programming to reset the fuses. Here is a post I made a while back on how to do that. HV Rescue Simple : 5 Steps - Instructables On a Nano you’ll have to tack flying l…

Burn bootloader - Nano is brick due to bad cable

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mr0wl August 9, 2025, 3:26pm 3

Thank you! I’ll definitely try to recover those Nanos.

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Burn bootloader - Nano is brick due to bad cable

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