Unit powers up but display is frozen and no nothing after that. No remote or button response except for display off.

The trick is sliding the display lock switch at the exact right moment, otherwise it will not engage. Here are the steps that have worked for my self and several other Xoom FE owners:
1. Power off the unit - if not already
2. Hold down the "Down" volume button at the same time you hold down the power button for 3-5 seconds.
3. While still holding down the "Down" volume button, release the power button and toggle the display lock slide a couple of times (located next to the volume controls).
4. The display should now show "Booting Recovery Kernel Image" and then the Android Robot will be displayed when the unit is in the rebooting phase.
5. Since the device is being Reset (erased and re-imaged), it is normal to see "Please wait for pre-load data" and this process takes about 6-8 minutes. The Xoom FE is now being Factory Restored to the original image.

Completely removing the unit from the power source by unplugging it for a few minutes worked for mine.

Flip Display:1. Press the Select button to enter Flip Display.2. Press the Select button to flip the screen upside down so that you may mount the unit on your vehicle's visor.Note:You may also flip the display by pressing and holding the DISPLAY button on the XACTVisor Sirius Satellite Radio Receiver or the Remote Control for 2 seconds.
Manual Here http://www.siriusretail.com/pdf/manuals/XTR3_Manual.pdf

Remove wallpower. Hold Power button 30 seconds. Reconnect wallpower. Turn on. If no success, remove wallpower 30 seconds, then hold power button while attaching wallpower. If no response, or unit fixes to AUX, requires service to reprogram the hardware. Send to Alabama 800 243000

According to the manufacturer, to reset the entire unit do the following:
1. Press and hold "Menu" and "Channel +" on the TV. 2. Using other hand, press the power button. 3. A small screen should appear in the top left part of the screen. 4. Using the remote, select "Memory Recall" and select. 5. Power off and re-boot the computer 6. Run channel auto-scan to regain the picture.

Press the 'Favorite' button on the remote. You may have accidentally pressed it. It locks the channel. Pressing again unlocks.

I was having the same problem and i called haier co. to ask what i could do and they said to order a new remote control so i did and i received it and i turned my tv with the new remote and pushed the tv/use button and finally worked thank god. i wasn't getting any response at all only blue screen.and no signal. maybe you could try it remote only 20.00.

You can reset your viewsonic remote control by removing the batteries, and holding the power button down for 10 seconds. Just 10 minutes ago I repaired my remote, which was doing absolutely nothing, not even turning the set off and on, Called Viewsonic, they told me this, and it worked ! Yay !

try to un hook the power by turning the breaker off for 30 minutes to reset the electronics. see if it would work after that.

tnx 4 using fixya,

drcool