I don't know how to turn it on. Tried all buttons

try using a fault scanner to reset the program after the battery change.

Maybe u should buy a new one or go back to the store and ask for help.

Instructions

1. • 1
     Insert your key into the ignition. Turn the key forward until it can go no further, without starting the vehicle.
     
     
   • 2
     Press and hold the "Valet/Override" button located under the dash. Hold the button until the blinking LED light on your dash is solid. Switch your "Valet" button to "Off" if you have a button labeled "On/Off." Your alarm should now be reset. If you wish to enable the alarm, repeat these steps to turn the alarm back on.
     
     
   • 3
     Remove wires from your battery if you wish to temporarily turn off your alarm. Disconnect the wire connected to the main power source to permanently disarm your alarm. Trace all wires connected to your battery and disconnect them. If you have no familiarity with your vehicle's wiring, you should take your vehicle to a neighborhood installer to disconnect the wires for you.
     
     

God bless you

i don't have a solution but I have the same problem right now and I want my phone to be fixed I got a new battery for it and it still doesn't work!! I just want my pictures and videos off my phone :(

Try replacing the batteries in the mouse. Sometimes the light will still come out of the bottom of the mouse - but the wireless signal is no good.

Also - after you replace the batteries in the mouse, click the sync button on the USB part that plugs into your computer, and then immediatly click the sync button on the bottom of the mouse.

That should do it!

Follow the instructions step by step

1. Turn off printer, cable power still plug in,
2. Press Stop/Reset button don't release
3. Press Power Button don't release and than release Stop/Reset button
4. Press Stop/Reset button 2X , wait until service mode to " 0 "
5. Turn off printer, cable power still plug in
6. Press Stop/Reset button don't release
7. Press Power Button don't release and than release Stop/Reset button
8. Press Stop/Reset button 4X , wait until service mode to " 1 "
9. Turn off printer, and loose cable power, wait one minute.
10. Connect cable power, turn on printer again, now this printer ready to use.

Attempt a hard reboot of the device by holding the home button and the power button at the same time. Contact AppleCare if the problem persists. Also, don't use the iPad's charger on the iPod or an iPhone. It doesn't play well with it.

change a new battery

You probably already tried this.
Normal 0 Turn the mouse over and find the small rest/connect button on the bottom of the mouse and press it. This should connect the mouse to the receiver and work properly. If not, try pressing the receiver button and then press the button on the mouse. This should be done whenever you change batteries or glitch. Hope this helps you. Bud

my son's just did this and the reset method worked (press the back button and up and hold both for about 10 seconds until the zune screen appears)