Logitech G502 Hero Disassembly Repair Guide

Difficulty

Moderate

Steps

Time Required

                          1 hour

Sections

Logitech G502 Hero Disassembly
15 steps

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Introduction

What you need

Step 1

              Before we begin...

To keep it out of the way, wrap the USB cable using the integrated Velcro cable tie
If the Velcro cable tie is damaged or missing, a twist tie works just as well

To keep it out of the way, wrap the USB cable using the integrated Velcro cable tie

If the Velcro cable tie is damaged or missing, a twist tie works just as well

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Step 2

              Remove bottom cover and weights

Remove the weight cover from the bottom of the mouse by lifting it up by the mouse foot.
You can remove the tuning weights if desired, but this is not necessary for disassembly.

Remove the weight cover from the bottom of the mouse by lifting it up by the mouse foot.

You can remove the tuning weights if desired, but this is not necessary for disassembly.

Step 3

              Removing the mouse feet

Using a heat gun (set to low), heat up the three mouse feet for several seconds each.
Slide an opening pick under both the mouse feet and the adhesive underneath it.
If done correctly, you should be able to peel off the mouse feet with the adhesive still attached.
If the adhesive does not come off with the feet you can scrape it off with a spudger.

Using a heat gun (set to low), heat up the three mouse feet for several seconds each.

Slide an opening pick under both the mouse feet and the adhesive underneath it.

If done correctly, you should be able to peel off the mouse feet with the adhesive still attached.

If the adhesive does not come off with the feet you can scrape it off with a spudger.

Step 4

Remove the four Phillips screws holding the two halves of the mouse together.

Remove the four Phillips screws holding the two halves of the mouse together.

Step 5

Insert the flat end of a plastic spudger into the area indicated between the top and bottom shells.
The two halves of the mouse will split almost completely apart with very little force.
Do not attempt to pull apart the two halves just yet.

Insert the flat end of a plastic spudger into the area indicated between the top and bottom shells.

The two halves of the mouse will split almost completely apart with very little force.

Do not attempt to pull apart the two halves just yet.

Step 6

Insert the flat end of a plastic spudger between the top and bottom shells on the left side of the mouse, next to the left click.
The top and bottom shells will completely separate, allowing the top shell to be lifted off.
Use caution to avoid snapping the plastic clips holding the two halves together.

Insert the flat end of a plastic spudger between the top and bottom shells on the left side of the mouse, next to the left click.

The top and bottom shells will completely separate, allowing the top shell to be lifted off.

Use caution to avoid snapping the plastic clips holding the two halves together.

Step 7

              Disconnecting Hero sensor

Using the flat end of a plastic spudger, carefully lift up both sides of the lock that secures the ribbon cable.
With the lock released, the ribbon cable should easily be removed from the connector.
Do not use too much force releasing the lock, otherwise the connector may be damaged.

Using the flat end of a plastic spudger, carefully lift up both sides of the lock that secures the ribbon cable.

With the lock released, the ribbon cable should easily be removed from the connector.

Do not use too much force releasing the lock, otherwise the connector may be damaged.

Step 8

              Removing side button board

Remove the side board by pulling it straight out to access the ribbon cable connector.
Using the same technique that was used with the Hero sensor ribbon cable connector, disengage the cable lock.
Remove the ribbon cable with the side board.

Remove the side board by pulling it straight out to access the ribbon cable connector.

Using the same technique that was used with the Hero sensor ribbon cable connector, disengage the cable lock.

Remove the ribbon cable with the side board.

Step 9

              Scroll wheel assembly - Part 1

The scroll wheel assembly is held in by a retaining bar, which will need to be removed
Using the pointed end of a plastic spudger, push the retaining bar out from the right side.
Once you’ve done this you can remove the retaining bar.

The scroll wheel assembly is held in by a retaining bar, which will need to be removed

Using the pointed end of a plastic spudger, push the retaining bar out from the right side.

Once you’ve done this you can remove the retaining bar.

Step 10

              Scroll wheel assembly - Part 2

Pull the scroll wheel assembly off of the mouse.
There are two small springs for the scroll wheel click actions; these are very small and easily lost.

Pull the scroll wheel assembly off of the mouse.

There are two small springs for the scroll wheel click actions; these are very small and easily lost.

Step 11

              Remove main board screws

Remove the four Phillips screws near the front of the mouse.
Remove the Phillips screw near the ribbon cable plug for the Hero sensor.
The cradle for the scroll wheel assembly can now be removed.

Remove the four Phillips screws near the front of the mouse.

Remove the Phillips screw near the ribbon cable plug for the Hero sensor.

The cradle for the scroll wheel assembly can now be removed.

Step 12

              Disconnect USB plug

Using the flat end of a plastic spudger, disconnect the USB cable plug from the main board by pushing out the male end of the plug.
Once there is enough of a small gap, the pointed end of the spudger can be used to push the plug out
Remove the main board from the mouse bottom shell.

Using the flat end of a plastic spudger, disconnect the USB cable plug from the main board by pushing out the male end of the plug.

Once there is enough of a small gap, the pointed end of the spudger can be used to push the plug out

Remove the main board from the mouse bottom shell.

Step 13

              Removing Hero sensor

With the main board removed, the Hero sensor board is revealed.
Remove the two Phillips screws holding the Hero board in.
Using tweezers, carefully remove the two nylon spacers from the posts.
Remove the Hero sensor board.

With the main board removed, the Hero sensor board is revealed.

Remove the two Phillips screws holding the Hero board in.

Using tweezers, carefully remove the two nylon spacers from the posts.

Remove the Hero sensor board.

Step 14

              Remove USB cable from bottom shell

Start by taking off the clear plastic piece on top of the cable stress reliever.
With the clear plastic piece remove, the cable can be removed at the stress reliever and bottom shell.

Start by taking off the clear plastic piece on top of the cable stress reliever.

With the clear plastic piece remove, the cable can be removed at the stress reliever and bottom shell.

Step 15

End

All internal components for reference
Phillips screws
Scroll wheel springs
Hero sensor nylon spacers
Ribbon cables for side board and Hero sensor board
Scroll wheel assembly
Scroll wheel cradles and retaining bar

All internal components for reference

Phillips screws

Scroll wheel springs

Hero sensor nylon spacers

Ribbon cables for side board and Hero sensor board

Scroll wheel assembly

Scroll wheel cradles and retaining bar

Replace necessary parts and then follow these instructions in reverse order to reassemble.

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                                                                                      21 other people completed this guide.

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                    spslizer

Member since: 03/10/2020

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Nicholin V - Aug 4, 2021

What’s that button near at the spring on top. Is that a middle mouse button? (yellow button thing at the middle at the top)

spslizer - Aug 4, 2021

You are correct, that is the middle mouse button

Anthony Clark - Aug 28, 2021

What’s a good replacement switch for the 2 main left/right buttons? They say OMRON 3159C21 D2FC-F-K

spslizer - Aug 28, 2021

That’s a good switch to replace them with

Me personally, I like to pull the switches off of other mice, like those rebranded Logitech ones that are bundled with some computers

The G502 is easy enough to pull apart and put back together that I don’t mind replacing the switches on occasion

Living Simple And Fun - Oct 27, 2022

Oh shoot, you have to do soldering to replace switches? Those black boxes? Yikes, may be something I dont want to mess with if so. If I can just figure out how to clean them I will try that, but if I have to replace them with soldering, I am doomed lol

Member-Contributed Guide#

Introduction#

What you need#

Member-Contributed Guide

Introduction

What you need