Some Apple fans are able to jailbreak their iPhone running iOS 7.0.4. There are particular restrictions and requirements for this to happen. You should have iPhone 4 either CDMA or GSM version. To jailbreak iOS 7.0.4 smartphone you need to install this version of firmware and use special program created for Windows computers. 
Don’t expect it to be similar to Evasi0n’s tool or Geohot’s creations. RageBreak tool works in a different way. Last time I wrote about OpenSn0w iOS 7 jailbreak but this is something different. It supports iPhone 4 model only. We’ll share the instruction on how to jailbreak iOS 7.0.4 handset and you can manage everything on your own. 
What You’ll Need for Jailbreaking 
* DownloadPageBreak program for Windows [for iOS 7.0.4]
* DownloadiOS 7.0.4 IPSW depending on the smartphone you have [CDMA or GSM]
* Get “Update Zip” from the here
Note that you might experience some problems with Cydia after jailbreak. But users assure that these are just minor errors. Since this is not a very stable tool, you can wait for Evad3rs to release their untethered iOS 7 jailbreak program. 
Tethered Jailbreak iOS 7.0.4 iPhone 4 Guide 
Step 1.Save RageBreak.exe file on PC desktop. You will have to open it as an Administrator.
Step 2.Launch RageBreak and select the first option in the program. Click OK when you see a pop-up window and let the application get / build opens0w files.
Step 3.iPhone 4 should be placed into DFU mode. Do this by clicking / holding Home and Power keys together for about 10 seconds. Then let the Power button off but keep pressing the Home key for another 10-15 seconds.
Step 4.When your smartphone is in DFU mode choose the second option “Jailbreak” and say Ok.
Step 5. The program will make your press OK each time it completes the steps for jailbreaking. You should exit the Java application only when all the files are transferred.
Step 6.Repeat Step 3 to get into DFU mode again and choose Boot option according to your iPhone 4 model. Press OK.
You will have to go through this procedure every time the handset reboots.
Step 7. Go to Settings – Wi-Fi and get IP address for the smartphone.
Step 8. Choose “Install Cydia” in RageBreak program and type the IP address you got.
Step 9. After Cydia is installed you will need to Repeat Step 3 and Boot your tethered jailbroken iPhone 4.
That’s it. Enjoy staying jailbroken.