NOTE: re-seating the laser does not void your device warranty.
Overview
This article provides instructions on how to re-seat the laser if you find that your Felik's laser is stuck pointing up (hardware v1.1).
Additionally, this article may be helpful for owners whose laser may have popped out due to the device falling to the floor or being excessively vibrated (hardware v1.0).
Background
This condition affects a very small percentage of v1.1 devices built during the Indiegogo campaign. It may also affect devices v1.0 that have experienced a drop or severe vibration which has popped the laser out of place.
For v1.1 devices, version 1.018 of the firmware has introduced changes to the calibration algorithm which expanded the range of motion of the servo motors that move the laser. Unfortunately, after the update we have received a couple of reports indicating that some devices had their laser stuck pointing upward. Upon further investigation it was discovered that during the Indiegogo batch assembly the wrong thread screw was introduced into the bin that held the correct screws. The incorrect screw could fall out during shipment or device operation, causing the tilt servo gear to wobble. The resulting extra lateral gear movement combined with the expanded range of motion may cause the laser gears to disengage, requiring the re-seat procedure.
Up to 25 such screws may have been used when producing the batch of ~200 devices. We have since released a software update (v1.019) that rolls back some of the expanded motor range of motion to prevent this, however some devices may have already been affected during the weeks between firmware updates. The re-seating procedure does not void your warranty.
NOTE 1: only ~25 v1.1 devices built for the Indiegogo campaign may have been affected. If your device is running firmware version 1.020 or higher it should not be affected. Any devices purchased on Sept 2019 or afterwards are not affected.
NOTE 2: Please refer to the sticker on the back of your Felik to determine which hardware version you have.
Procedure
1. Begin by taking the top cover off, as described in this article: https://felik.freshdesk.com/a/solutions/articles/44001193498
2. With Felik powered off, take the laser "drum" out. You can do that by pulling it out, it's held by snap-in clips on each side:

Hardware Version 1.0 ONLY
Steps 3-5 apply to hardware version 1.0 only. Please check the sticker on the back of your device.
3. Snap the gear back in, such that the front white "limit switch" is depressed by the laser drum, as illustrated in the video below:
Ignore instructions for v1.1 and proceed directly to Step 6.
Hardware Version 1.1 ONLY
Steps 3-5 apply to hardware version 1.1 only. Please check the sticker on the back of your device.
3. You will see the black bevel gear. It should look like the picture in #1. You can just re-seat the gear on the motor. At this stage, there should be no need to add a screw if it's missing -- the mechanism is designed to be held in place by the laser drum. The latest firmware version properly corrects the range of motion. However, optionally you may add an M2 (or equivalent) screw, but be careful to only tighten it a small amount - the gear should have a bit of "slack" when moved with your hand or it might put too much stress on the motor.
4. Note the "notch" on the side of the laser drum where the gear is. This is an alignment key, and it should align with the motor chassis like so:

5. Snap the laser drum back in:

6.Hold both buttons together and insert the power adapter. The status light will turn blue. This puts Felik in "assembly mode" and it should automatically re-align the laser gear. You might hear some clicking as it happens:

7.
v1.0: Within 10 seconds, press any button once. The motors will begin to move. If you hear beeping and see the status light flash red, you may need to adjust the laser drum based on the number of beeps that you hear:
3 Beeps | Use your fingers to move the laser "up" one "click". |
4 Beeps | Use your fingers to move the laser "down" one "click". |
NOTE: If the above procedure fails, please contact customer service as your device may need to be repaired. Device repair is free within the 1-year warranty period. Please refer to our Warranty Policy for more information.
v1.1: Within 10 seconds, press the left button (next to the red sticker in the photo above) 4-5 times. The motors will begin to move. You may hear beeping and see the status light flash red, or you may see it flash yellow - either result is ok.