I accidently powered my arduino from a wrong pin externally....please help me

My arduino was working and after some time it stopped uploading and it would say

 "arvdude :verification error,first mismatch at byte 0x00000xc != 0x62
arvdude : verification error ; content mismatch"

so i tried troubleshooting but it didnt work so started to think what i did wrong and i remembered that i powered my arduino from 5v pin and ground when i should've powered from vin pin and ground.I think my arduino's fuse is gone but i am no pro at arduino i am quiet new.So can you please tell me how to how change my fuse.do i need to change my  ATmega328 chip or something else.if you think its not the fuse please tell me how to fix it .

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You need a pre-programmed Atmega chip, but probably don't need to change the board - assuming that, when you plug it into your USB port, the board is "identified" properly by your computer.
ms10 (author)  steveastrouk5 years ago
do you know where to get one
People like Adafruit can supply the single chip,

or you can be brave and make a PC based programmer and burn your own.....its only very marginally cheaper for an amateur.
ms10 (author)  steveastrouk5 years ago
What voltage DID you power it with ?

The chip will run happily on 5V , and will probably tolerate 6V, I don't think you'll have bust it, but how soon after your "power supply issue" did it start to go wrong ?? I get the sense that it wasn't immediately.
ms10 (author)  steveastrouk5 years ago
rickharris ms105 years ago
I stand by my original reply.
ms10 (author)  steveastrouk5 years ago
no it wasnt immediatly
bwrussell5 years ago
Have yo asked over at Arduino.cc? They are the experts. You could try reloading the bootloader, look for instructions at Arduino.cc. If that doesn't work I would try replacing the chip first since they are only a few bucks.
ms10 (author)  bwrussell5 years ago
who do i ask at arduino.cc and can you tell me how to ask a question
ms10 (author) 5 years ago
but the led on the arduino lights up
rickharris5 years ago
You may well have broken it.