Gamepad help.

Take a look inside?! that's what i suppose to do.

Have you tried taking the batteries out and putting them back in? Maybe the hit did make them move slightly but enough for them not providing the required voltage.
Other than that, looking on video teardowns, you'll only need a Torx 8 to open it and check if anything got loose.
Sorry, I don't own one and can't help you any further :/

Win 10 or Win 7? I know XBones are a PITA to work reliably on bluetooth in Win7, so troubleshooting on BT is probably out of the question.
So if it's not working now when wired, that indicates you may have damaged the internal plug connection on the mainboard inside the controller?

Or, based on the above comment you made, it could be more serious than just that.

Have a different cable to try?

Did you try to re-seat the batteries? It could be as simple as the batteries got knocked loose. If that doesn't solve it, have you tried the Xbox Accessories app from the Windows Store? That might be able to help troubleshoot it.

Also, I use mine with the Xbox One Wireless Adapter for Windows - it works perfectly for wireless operation.

Update- Ok, pad doesn't work with usb anymore. Tried multiple ports and cables ( I have 3).
I unpaired the pad to see if re-pairing will fix it and it won't recognize the pad VIA bluetooth on a WIN 10 with ALL the latest creators updates.

Looks like I'm going to have to find a way to get the money for a new one. :(

Edit: Just saw that you checked the usb cable.

If those don't work, you're going to have to do open controller surgery or get it repaired somewhere. If the controller never worked via bluetooth, you could try and submit a support ticket to microsoft. Worst that happens is your out a bit of time, but I've totally seen out of warranty replacements happen enough times that I recommend asking (still a long shot, make sure to say a friend told you to submit a ticket cause you thought it had to be wired all the time, and don't mention anything about it not currently working when wired).

You'll need a soldering iron and a multimeter to repair the controller yourself. Even if you don't, if it's broken you could take it apart to see if there's obvious damage like a wire hanging loose. They have a lot of small parts so make sure you are working on a clean surface and have a tray or other place to put all the parts into. If you don't have the multimeter or soldering iron, then it's likely better to just buy a replacement controller. You could always try ebay/craigslist/facebook for used ones.

Best of luck

Ordered the white one for a change. Had the black one before. US $46.88 before tax and free shipping. US $69.99 at the M$ store.

Final update- New one arrived today. Works perfectly AND I got the bluetooth to work this time.