Update Mega328 Transistor Tester with Arduino Uno micro controller

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Hello,

I'm trying to update Mega328 Transistor Tester with Arduino Uno micro controller.

Here is my Uno and Mega328 connection and Avrdude setting, including particular error:

avrdude.exe: verification error, first mismatch at byte 0x7e00
** 0x11 != 0x41**
avrdude.exe: verification error; content mismatch

2249×1200 577 KB

I'm not sure what is wrong