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Flashing Folder. Keyboard not working

September 13, 2016 at 09:24:11
Specs: Mac OS, no idea
Thanks in advance for anyone trying to help :)

I have a Mac (, i am not the first owner doe, all i know is that there was a apple logo and a little wheel rolling under it, so i thought, must be HDD problems, so i threw that away, and installed a new HDD (with those 4 little pins on it).
Now i have a bootable pen (because i don't have the DVD to install it) that i did using TransMac.
So i turn on the iMac and all that appears is a flashing folder with a question mark on it.
Went on the internet, searched everywhere, far and wide, all they say is "oh press this key combination, easy peasy lemon kebab", the thing is, my keyboard behavior seems very strange, i have a wired mac keyboard, when i press Alt key(or option key i think) it shows the mouse cursor, but any other commands like cmd+r or alt+cmd+o+p don't work. Nothing works, and i see that Caps Lock only lights up when that folder with question mark appears.
I have heard there is a firmware password that might block the keyboard, but i need to press stuff to deactivate it O.o

Basically, i am doomed, if you guys can help me, i would really thankful

By the way, going to an Apple Store is not an option.

Update: I have made a reset to the Pram (made 10 in sequence just because) by holding Alt+Cmd+P+R, IT DID RESET although, the other key combinations still don't work...

See More: Flashing Folder. Keyboard not working

September 14, 2016 at 02:08:21
Sorry can't help - - I use a Windows PC & it never gives me any grief - - I knew there was a good reason why I didn't buy a Mac (apart from them being ridiculously over-priced).

message edited by phil22

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September 14, 2016 at 05:55:03
i know xD
i prefer PC any day to a MAC, the thing is that i want to repair this one :\

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September 30, 2016 at 12:47:17
Just to clarify, you have a new hdd with no OS on it and you don't have the original hdd?

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