Cannot open case to install batteries. Pushing door in direction of arrow. Is there something else?

I have 2 garage doors side by side with model 3280 liftmaster door openers. One of the doors began to open randomly/phantom style! After resetting the codes and checking for staples causing malfunction/shorts and replacing the circuit boards in the wall remote, none of which made a difference,I had the dealer come out and change out the entire opener/ wires/ remotes etc. The following day my "other" opener started doing the same thing-opening randomly--something that only the door beside this one was doing before the new opener was installed. This lead me to believe that it might have something to do with the wireless keypad on the exterior of the garage-(which was the only common denominator with the other side-by-side door. The new opener installed was not compatible with the older model so I knew that there was no interference with the signals from the old and new remotes. I put in a new battery and it still opened phantom style- so I would always activate the "lock" feature on the interior wall mount wired remote to make sure that the door would not open--this worked fine, however, it is a pain in the but to have to get out of your vehicle to close the door via the exterior keypad. Finally, I pulled the battery out of the wireless key pad and the garage door never opened randomly again
I tried reprogramming the keypad with other "temporary codes" and it would not allow them to be programmed--this was also an indication that the wireless keypad and the opener were not cooperating--once I replaced my exterior key pad with a new one--the problem of phantom./random openings was solved. Hopefully some garage door people will read this and get some "much needed" knowledge regarding the "Random Garage Door Openings" which I am sure will haunt home owners-but, if you are reading this info--you now know what your options are for saving some $$ as well as your security and sanity...

That clear plastic tab was there simply to keep the battery from making contact and running down.Since you declined to specify a make or model I can't give you definitive instructions. Can you find the outline of the battery cover? There's probably a set of grooved ribs on the cover, possibly with an arrow. If there is an arrow, put your thumb on the ribs and push in that direction. If there isn't an arrow you may have to try both directions if it's not obvious which way it's supposed to go.If you need further assistance feel free to reply to this post, but also be sure to specify the make and model of whatever device you're trying to open.

If you held the smart button in too long it erases the memory and none of the remotes will work. To program it press and hold the button on your remote and then press and immediately release the smart button.

Follow the installation instructions, paying particular attention to step8- the door handing instructions. You probably have it backwards:

http://s7d5.scene7.com/is/content/BDHHI/kwikset-smartcode

A note about the PDF files: If you cannot view a given file, you need to first install Adobe reader. You can get the free download from here:

http://get.adobe.com/reader/

Good luck!

First thing to do is make sure the battery in the keypad is good.

Locate the smart/learn button on the rear of the motor unit near where all those white wires go. Press and immediately release this and then walk over to the keypad and key in any 4 digit code you like and press enter.

Hi
The x in the code represents any of the colors in you case magenta.
August 23, 2006 Product : imageRUNNER C3100 / C3170 Title : E026-0x01 Error Code Error :
E026-0x01 Error Code / Message [Remaining toner is low.] / Toner scattering inside machine.

E026-0x01 can be displayed when the toner concentration does not return to a normal level after replacement of the toner bottle and 5-time toner recovery sessions following the detection of toner absence.

In the field, this symptom occurred because the toner shutter in the developing assembly was not open completely and the toner was not supplied from the toner bottle to the developing assembly.

Workaround :
Before installing the developing assembly into the host machine, be sure to slide and fix the toner shutter so as to cover the opening for toner. Then, install the toner bottle.

Points to Keep in Mind When Fitting the Developing Unit
- Before starting the work, check to be sure that the shutter [1] is forced in the direction of the arrow. If not, move it in the direction of the arrow until it butts against the shutter [1]. If it is not fully butted against the shutter, you may not be able to fit the toner cartridge correctly.


- When fixing the developing unit using a screw [1], be sure to force the casing of the developing unit in the direction of the arrow as you tighten the screw. After tightening the screw, try pushing the casing of the developing unit in the direction of the arrow to make sure that there is play of about 1.5 to 2 mm. If there is no play, remove the screw [1], and tighten it while forcing the casing of the developing unit in the direction of the arrow.

Memo:
This step is performed so that the screw base will not ride over the developing cartridge guide plate [1]. If you tighten the screw while it rides over the guide plate, the spatial relationship between the photosensitive drum and the developing cylinder will be wrong, causing blank output.

Canon USA, Inc. Systems & Technical Support Division

Normal 0 If the mouse doesn't have a little door to open on the bottom, then try this. Just behind the Left and Right keys where your hand rests, apply firm pressure down on the cover and slide to the rear. Some mouse manufactures have used this type of access to replace the batteries.
Hope this helps. Bud

close your mobile then place two thumbs on battery case and push upwards in direction of arrow

Batteries:
Make sure to replace the "battery backup" too the little lithium ion battery

Try Adjusting contrast:
Hold down "[2nd]" key press up or down arrow repeatedly to lighten or darken contrast.

First attempt reseting:
Step 1: Remove all the batteries
Step 2: Hold "Clear" key down
Step 3: Still holding "Clear" key reinstall batteries
Step 4: Still holding "Clear" key press "On" key until home screen is displayed.

Second shot reseting:
remove all batteries including lithium ion (backup battery), wait 3 hours and reinstall batteries.

Third Shot reseting:
Step 1: Remove a battery
Step 2: Hold down "DEL" key reinstall battery
Step 3: Possible msg pops up saying "Waiting ... Please install software" IGNORE msg and take out battery again
Step 4: Reinstall battery do not hold down "DEL" key

reseting will cause the handheld to loose all of its stored memory.

Hope that helps!