Mods Device Spoofing: What build prop entries are necessare for the phone to work?

[NewAndroidian]

I am trying to spoof a build prop but I dont want to deal with bootloop recovery again. I have heard you should not change

ro.build.version.sdk

or

ro.build.version.release

I know changing SDK might not be the wisest choice; every tutorial says you can change version.release. I just ran across a bootloop warning for changing version.release

But as far as I can tell, version.release must be changed or apps still think I am using an old version. Am I wrong? I don't want to brick my device. So, which ones should I really not screw with.

Is it dangerous to mess with any of these? More importantly, can apps / the Play Store see this stuff?

• ro.product.device=
  
  
• ro.product.board=
  
  
• ro.product.cpu.abi=
  
  
• ro.product.cpu.abi2=
  
  
• ro.board.platform=
  
  
• ro.build.product=
  
  
• ro.build.description=
  
  
• ro.build.fingerprint=
  
  
• ro.build.characteristics=
  
  
• lpa.use-stagefright=
  
  
• mmp.enable.3g2=