Let me get this straight: You...
- hacked your iPhone
- voided the warranty
- violated the terms of use
- replaced system files
- installed unauthorized applications that Apple never reviewed or vouched for
- ignored a clear warning from the manufacturer that the above actions could result in complete loss of function
- didn't restore your phone to its original condition
- downloaded the update you'd been warned against, and
- installed it
...and that's how Apple bricked your iPhone.