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I lost the only remote control I had for my garage box. Normally I should be able to open the garage with a key and a cylinder lock. But when I bought this apartment (with this garage box), the cylinder lock was somehow taken out by the previous owners. I have a small hole now in my garage door where the lock has been previously.

Is there any way I can open my garage from the outside? There is no panel or anything. To program a new remote control, I need the buttons on the motor, which is inside the garage.

Thank you in advance!

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    I assume you have no other access into the garage. Can you potentially manipulate the locking mechanism through the hole where the cylinder lock used to be? Do you know anything about the door or locking mechanism? – Shimon Rura Nov 2 '20 at 22:23
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    You might be best served by looking for that lost remote some more. Most garage door locks (if there is only the overhead door that the opener operates, and no "people door" as well) only work with the opener if they are unlocked. Locking them disables the opener, but un- locking them leaves them held down by the opener, unless you are inside the garage to release the opener connection from the door. If your lock cylinder that's missing is in a people door, you have a bit more hope of getting through this without destruction and extensive repair. – Ecnerwal Nov 2 '20 at 22:59
  • There's often an emergency release that's in the form of a handle you pull that detaches the opener drive from the door. For obvious security reasons, this is only accessible from the inside, though. Perhaps you can break a pane or cut a hole in a panel to access it? – Daniel Griscom Nov 2 '20 at 23:47
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If you can tolerate appearing as if you are breaking and entering, you can use Daniel Gricom's solution with a bit of mechanical ingenuity. Many garage doors will have a small gap at the top, where the door meets the framing. If not, a wedge can be forced into the area near the center of the top.

This will allow you to drop a sturdy line from the top of the door, past the cylinder lock hole. The next tool required is an expandable noose or other gripper tool, but it has to fit either under the door or through the cylinder lock hole. The former is more likely but will also require a wedge in that location.

A quick search of the 'net leads me to believe that there is no off-the-shelf tool of this nature. This leaves a section of garden hose or similar tubing of sufficient length to reach from under the door to the internal manual door release. A section of braided cable, perhaps 1/16- 1/8" diameter would be threaded into the hose with both ends free at the outside end of the hose. Stiffer is better as will be seen later.

The first line from the top is used to lift the hose to snare the handle. You'll have to have enough of a loop to extend from the inside surface of the door to the release handle, perhaps 24-30".

Twisting the hose from below the door will swing the loop until the snare can be effected.

The difficult portion of this requires one to see the snare and the handle. Two telephones with facetime or similar video capability is one method, again using the gap created by the wedge. The typical home colonoscopy kit, also known as a digital inspection camera will not have the focal length necessary, although the flexibility aspect is a boon.

Once the snare is around the handle, one should be able to pull the two loose ends and release the door.

One of the related answers in the margin suggests also a YouTube video using only a coat hanger. That particular garage has windows at precisely the level required for an easy open.

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