I am a total beginner at guitar and I bought myself a MPM Instruments guitar second hand for 60€. I thought it was a pretty good buy since it had a cable and a stand with it and it was a semi-electric guitar. However... I tried playing Rocksmith with the no cable fix and my first cable didn't return any sound. My second try I used a quarter inch to 3.5 mm adapter and a 3.5 mm cable (I dont know if this works the same as the other way around but I thought so :p) this time Rocksmith recognized my playing but only picked up buzzing. (+999 or -999 at tuning...) By now I am really desperate since I dont want to give 30$ to the real tone cable because my guitar might be broken and I dont think I have a way of fixing / checking this... anyone have a good idea on how to fix this? Thx a lot in advance :D!
The simple test to see if the electrics in your guitar work is to plug it into a guitar amp. Take it around to a friend's or even to a guitar shop - they should happily let you test it.
If it works through an amp, then the guitar is fine - then you need to look at why it may not work with Rocksmith. From what I know of the cabling, I'd suspect the no cable fix first.