How much could I get for a bricked iPhone?

Ok, So a friend gave me his old iPhone 3GS because he got a new one. Everything worked perfect on it but I didn't know it was JailBroken, It had so much stuff in it so I went to master reset it and now it is stuck on Apple Logo on Loop Reboot.
Its a White iPhone 3GS, Perfect condition with one small scratch on the back, 32GB. Just one problem that its stuck"/ How much could I get for it?

Try to restore it then jailbreak it again

To put your iPhone into recovery (DFU) mode:

1. Make sure the iPhone is off and unplugged from your computer.
2. Hold down the home button.
3. While holding down the home button plug the iPhone into your computer.
4. Continue to hold the home button until the Apple logo disappears and the iTunes logo appears.
5. Now you can let go of the home button.
6.iTunes will say it has detected an iPhone in recovery mode.

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