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Author Topic: Arduino BT bootloader problem  (Read 274 times)
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I am new to arduino as well as hardware. Recently, my arduino BT suddenly fails to be detected and programmed in windows, and I found out the reset pin(pin 7) always go high and low repeatly. I decide to upload the bootloader using the Parallel Port Programmer

And I follow the step decribed in here
with replaced the bootloader to bt one.

My problem is that I always face verification error

avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x3800
         0x0c != 0xff
avrdude: verification error; content mismatch

avrdude: safemode: hfuse changed! Was df, and is now ff
Would you like this fuse to be changed back? [y/n]

What should I do?

Thanks a lot,

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