eng.mak88
Newbie level 4

I'm building this circuit "LED Strobe & Tachometer" so it uses a microcontroller (PIC16F88-I/P) and I have the HEX code, but for some reason I don't know the code won't be verified when installed on the chip (neither can be read), and here is the code (LED Strobe Folder) :
https://www.epemag.com/lib/src/1110.zip
ANY HELP PLEASE!
https://www.epemag.com/lib/src/1110.zip
ANY HELP PLEASE!