WHEN I PUSH SHUTTER BUTTON FEE LIGHTS UP WILL NOT DO ANYTHING . I DO HAVE NEW BATTERIES IN IT.

https://support.nikonusa.com/app/answers/detail/a_id/2605/~/what-does-the-fee-or-f---error-message-displayed-on-an-slr-camera-mean%3F

Pull all the batteries, wait 30 seconds, put in a completely different card, put batteries back in and turn on and format the card--sometimes works

If the camera has recently been dropped you may have lens damage that is preventing it from powering up. If it hasn't been dropped your problem may be due to weak/worn out batteries or corrosion on the battery contacts inside the camera which can prevent the full power of the batteries from flowing into the camera. Try this free fix before you do anything else: remove the batteries and wipe the camera contacts firmly with a dry cloth (heavy corrosion may require cleaning with a wire brush, steel wool, or sandpaper). Remove any residue that may have fallen into the battery compartment during cleaning, then wipe both ends of the batteries and place them back in the camera and give them a full charge (assuming that you are using rechargeable batteries). This cleaning clears the problem about 90% of the time. If it doesn't work for you, it may be time for new batteries, or the camera may have a problem that requires professional repair.

A few things to try, based on my FG's operation: - The most obvious- are your batteries good? Correct type? If they are: - When all is well the red LED metering lights will appear in the viewfinder window on the right side, in the range of shutter speed numbers. - The red LED metering lights are only activated when you press the shutter release button (halfway). The lights go out after a few seconds if the shutter button is not held down. Just tap the shutter button to reactivate them. - The shutter speed setting dial must NOT be on B (Bulb) or M90 (non-electronic Manual mode) if you want to see the red LED metering lights. The lights do not operate on these two settings because metering is irrelevant here (you'd be doing the metering, not the camera). - If you're in P (Program mode) the lens aperture must be set all the way to the smallest setting (usually f22 or f16, depending on the lens). If not, you'll only see blinking lights at the top and bottom of the shutter speed range on the right in the viewfinder. That's a reminder to set the lens to the smallest (highest numeric) aperture.
Hope these help. The FG is a great little camera.

changing the batteries have no effect on film transport, just a coincidence. take the bottom cover off and check the white plastic gear on the film take up side of the camera. if it is broken your X700 may not be repairable as no new parts are available.
push the re-wind button in and try to charge the shutter again. remove film first. if it still just goes part way then a gear is stripped. try to find a camera repair shop that may have good used parts available.

Have you tried to put new batteries in it sometimes when they start to die then not all of the functions will work and also cheap batteries can be brand new but not strong enough to run the functions

Sounds like your batteries are near dead, enough juice to run the light and shutter control but not enough for the motor drive (which the control system knows it must use when film is loaded). The MB-21 lights not coming on is the battery test -- two lights means batteries OK, 1 light means low battery, no lights means exhausted.

This sounds odd, I know, but I found a solution that worked for me. I had exactly the same problem: picture taking was wonky, menu button, playback button wouldn't work. It would do this immediately upon starting up, every time.
What worked was when I adjusted the "exposure" by holding the +/- button and turning the little dial near the shutter button. It makes absolutely no sense, but somehow it suddenly started working perfectly again. And it hasn't glitched up again yet.
Hope it works for you, too.

Hi , to release the shutter open the lense and push shutter button , rotate the camera mode to auto or manual release shutter.donnot set on bulb or lower speed can cause stuck camera miror and stter curtain, or blade.

Did you set the camera to M90 AFTER you installed new batteries? The camera will work without batteries in the B and M90 settings, but when you install new batteries, reset the mirror by turning the dial to M90. If this doesn't correct it, I wouldn't recommend opening the camera - take it to a repair shop.