Roborock Q Revo: Laser Distance Sensor Replacement

Written By: DegenFixer
  • Comments: 1
Roborock Q Revo: Laser Distance Sensor Replacement

Difficulty

Moderate

Steps

18

Time Required

45 minutes - 1 hour

Introduction

This guide will show you how to replace the Laser Distance Sensor (LDS or LiDAR) of Roborock's robotic vacuum Q Revo.

You may want to do so if your robot reports "Error 1: Laser Distance Sensor blocked."

Within the guide I will also outline how to replace just the motor that spins the LDS, as well as how to clean it properly.

I recommend reading the entire guide before starting the disassembly, then following steps as needed during.

If you already know how to disassemble it or have followed my teardown guide, skip to step 10.

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    • Open the back.

    • Remove the dustbin.

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    • This rubber cap has a layer of adhesive and is stuck to the screw. The adhesive doesn't hold it in place firmly.

    • Remove the cap, then save it somewhere. It's purely cosmetic, so don't worry too much if you do lose it.

    • Once you remove the cap, remove the screw using a PH2 screwdriver.

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    • Flip it over.

    • I use some padding underneath to prevent it sitting solely on the LDS cage.

    • Remove the side brush using a PH2 screwdriver.

    • Remove the marked screws using a PH2 screwdriver.

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    • Remove the battery by lifting the left side until you can reach the connector, then disconnecting the connector by squeezing it's release tab.

    • Do not just yank the battery out. You will tear the connector off the motherboard.

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    • Remove the screws using a PH1 screwdriver.

    • Lift the bumper's lid off.

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    • Flip the robot over.

    • Remove the bumper by tilting it forwards to get it off the little tabs on the front.

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    • Unscrew the screws using a PH2 screwdriver.

    • Simply lift it out.

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    • Remove the remaining screws that hold the chassis together. Use a PH2 screwdriver.

    • Flip it over, then pull it apart.

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    • Screws organised by type and steps used in.

    • Use this during reassembly if needed.

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    • Remove the 2 screws using a PH2 screwdriver.

    • Remove the cage itself by lifting it out.

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    • Remove the 4 screws using a PH2 screwdriver.

    • Disconnect the connector on the motherboard.

    • Remove the LDS.

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    • Remove the cable.

    • I recommend reattaching it to the motherboard for now, to avoid misplacing it.

    • If you are replacing the entire LDS, replace it now and continue from step 9 backwards to reassemble your device.

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    • Depending on the iteration of the LDS you have, you might not need to do this. One has it, another doesn't.

    • If yours doesn't have a cover, please check: Roborock Q5 Pro: Laser Distance Sensor Replacement And skip to step 12.

    • Slip something thin (or sharp) between the cover and the housing. Then remove the cover.

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    • Remove the rubber band.

  15. If you have the other iteration of the LDS, this is not necessary. If you have the other iteration, please check: <a href="../../Guide/Roborock%2BQ5%2BPro%3A%2BLaser%2BDistance%2BSensor%2BReplacement/177540">Roborock Q5 Pro: Laser Distance Sensor Replacement</a> And skip to step 12.

    • If you have the other iteration of the LDS, this is not necessary. If you have the other iteration, please check: Roborock Q5 Pro: Laser Distance Sensor Replacement And skip to step 12.

    • Remove the wheel that the rubber band slots into from the motor.

    • I use a hemostat clamp to do so. Do note that it will cause some minor cosmetic damage.

    • If you use a hemostat as well, do not grab it by the groove. You will deform it and the rubber band may not fit within it properly anymore.

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    • This is the damage left by using a hemostat.

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    • Disconnect the motor from the LDS. If you have a different LDS, it may be soldered to the PCBA.

    • Unscrew the motor using a PH00 Screwdriver, then remove it.

    • Now you can replace or clean the motor.

    Do you know where to buy the motor? Can’t find it on Amazon. Thanks.

    Chris -

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    • Make sure that during reassembly, you do not accidentally squish this flap that closes the auto-empty gap.

    • If you do squish it, your chassis won't properly close during reassembly.

Conclusion

To reassemble your device, follow these instructions in reverse order.

Author

DegenFixer

Member since: 18/09/24

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