8BitDo Mod Kit for Original N64 Controller

Convert an original Nintendo 64 controller into a rechargeable wireless controller

The original Nintendo 64 controller has one of the most recognizable designs in gaming, but its permanently attached cable and aging analog-stick mechanism make it less convenient for modern setups.

The 8BitDo Mod Kit replaces the original controller circuit board and cable with a Bluetooth-enabled board, rechargeable battery pack, rumble motor and modern replacement joystick. The original shell, buttons and rubber membranes are retained, preserving most of the appearance and feel of Nintendo’s original controller.

The conversion is solderless and reversible when the original board, cable and joystick are stored safely. The finished controller can connect wirelessly to Nintendo Switch, Windows and Android devices. Playing wirelessly on an original Nintendo 64 requires the separately sold 8BitDo Retro Receiver for N64.

Product revision note: Earlier versions of this kit included a Hall-effect joystick. The current complete kit is advertised with a TMR joystick. Installation is substantially similar, but the joystick appearance, wiring and instructions may differ slightly. Follow the printed instructions supplied with your exact kit.

Project overview

Difficulty: Easy to moderate
Estimated time: 30–60 minutes
Soldering required: No
Permanent shell modification: No
Original parts retained: Shell, buttons, membranes and screws
Main risks: Pinching a wire, misaligning shoulder-button contacts or installing a membrane incorrectly

What this project accomplishes

• Removes the permanently attached controller cable

• Adds Bluetooth wireless connectivity

• Adds a rechargeable battery

• Adds rumble support

• Adds USB-C charging and wired operation

• Replaces a worn analog stick

• Preserves the original Nintendo shell and buttons

• Allows use with an original N64 through a separately purchased receiver

What is included

The exact contents can vary by product revision, but the complete kit normally includes:

• Replacement 8BitDo circuit board

• Rechargeable rumble and wireless pack

• TMR or earlier Hall-effect joystick assembly

• Cable-opening plugs or light pipes

• Phillips screwdriver

• Printed installation instructions

• USB-C charging cable, depending on the package

The current official listing identifies the complete version as Mod Kit + Rumble Pack + TMR Joystick. The joystick and N64 Retro Receiver are also sold separately, so check the selected product option before ordering.

IMAGE NEEDED: Complete kit removed from its packaging with every component labeled.

Caption: The complete kit replaces the original board, cable and analog-stick assembly.

Alt text: 8BitDo N64 mod kit containing a replacement circuit board, TMR joystick, rumble battery pack and screwdriver.

How the finished controller works

The replacement pack inserted into the rear Controller Pak slot contains the rechargeable battery, wireless controls, USB-C connection and rumble hardware.

Depending on the revision, it provides:

• Mode switch marked S and D

• Pairing button

• Home button

• Star or screenshot button

• ZR button

• USB-C charging port

• Charging and connection LEDs

The controller’s original Start button is used to turn it on. Holding Start for approximately three seconds turns it off, while holding it for eight seconds forces a shutdown. The official manual specifies an approximately 500mAh battery, around eight hours of use and a charging time of one to two hours.

Compatibility

Nintendo Switch

Use the pack’s S mode for Bluetooth or wired Switch operation.

The controller is designed to appear as an N64-style controller on Switch and works particularly well with Nintendo 64 titles in Nintendo Switch Online. The added Home, screenshot and ZR controls provide functions that are not present on the original wired controller.

Windows and Android

Use D mode for Bluetooth or USB operation with Windows and Android devices.

The Bluetooth device normally appears as:

8BitDo N64 Mod Kit

Button mapping can depend on the emulator or game being used.

Original Nintendo 64 console

The controller cannot connect directly to an original N64 by itself. It requires one 8BitDo Retro Receiver for N64 plugged into a controller port.

Each receiver connects to one controller. Four-player wireless use therefore requires four receivers.

Other systems with an N64 controller port

8BitDo also lists compatibility with other devices that use an original N64 controller connector. Individual system compatibility should still be verified before purchase.

Important Controller Pak limitation

The rechargeable 8BitDo pack occupies the original controller’s expansion slot. A normal Nintendo Rumble Pak or Controller Pak therefore cannot be inserted into the controller at the same time.

When the official N64 Retro Receiver is used, the receiver supports selectable:

• Vibration Pack Mode

• Memory Card Mode

After pairing, hold:

L + R + D-pad Up

for approximately five seconds to switch modes.

• White receiver LED: Vibration mode

• Blue receiver LED: Memory-card mode

This function is provided by the receiver rather than by inserting an original Controller Pak into the modified controller.

Parts and tools required

Required

• Original Nintendo 64 controller

• Complete 8BitDo N64 Mod Kit

• Phillips #1 screwdriver

• Phillips #0 screwdriver

• Clean work surface

• Small container or magnetic mat for screws

Recommended

• Plastic spudger

• Fine tweezers

• Soft cleaning brush

• Cotton swabs

• 90% or higher isopropyl alcohol

• Mild soap for removed plastic parts

• Camera or phone for documenting button placement

• Original N64 console, Switch, Windows PC or Android device for testing

The kit may include a screwdriver, but a quality precision driver reduces the risk of stripping the original screws.

Before beginning

Test the original controller

Before opening it:

1. Connect it to an N64.

2. Test every face button.

3. Test L, R and Z.

4. Rotate the analog stick through its full range.

5. Test the D-pad.

6. Check whether the cable disconnects during movement.

7. Record any existing problems.

The replacement board corrects many electrical and cable faults, but the original shell, buttons and rubber membranes are reused. A damaged membrane or physically broken button must be repaired separately.

Decide whether to replace the joystick

The current kit includes a modern TMR joystick. Earlier kits included a Hall-effect model.

The replacement stick:

• Avoids the worn gears common in original N64 sticks

• Has a shorter, more modern cap

• May feel closer to a GameCube-style stick

• Can have a different sensitivity curve from an original Nintendo mechanism

An earlier Hall-effect-kit review found the new stick more comfortable and maneuverable, but also noted that it sat lower than the original. Analog feel is subjective, and players seeking exact original movement may prefer a rebuilt OEM joystick.

Recommendation: Use the included replacement when the original stick is loose or worn. Keep a healthy original stick when maximum authenticity is more important than the modern feel.

Preserve the original parts

The conversion can be reversed when these components are retained:

• Original circuit board

• Attached controller cable

• Original joystick module

• Cable strain relief

• Original accessories

Place everything in a labeled anti-static or resealable bag.

IMAGE NEEDED: Original controller and labeled storage bag for removed parts.

Caption: Store the original board, cable and joystick so the modification remains reversible.

Part 1: Open the controller

Step 1: Remove the Controller Pak

Remove any Rumble Pak, Controller Pak or Transfer Pak from the rear expansion slot.

Never open the controller with an accessory still installed.

Step 2: Place the controller face down

Set the controller face down on a clean towel.

Keep the controller level so the face buttons remain positioned in the front shell when it is opened.

Step 3: Remove the seven main screws

Use a Phillips #1 screwdriver to remove the seven larger screws from the rear shell.

Place them in a labeled container.

Step 4: Remove the two expansion-slot screws

Use a Phillips #0 screwdriver to remove the two smaller screws inside the Controller Pak opening.

An original N64 controller therefore uses seven main rear screws and two smaller expansion-slot screws during this disassembly.

IMAGE NEEDED: Rear of the controller with all nine screw locations numbered.

Caption: Seven large shell screws and two smaller Controller Pak screws secure the controller.

Alt text: Rear of an original N64 controller with seven main screws and two expansion-port screws labeled.

Step 5: Lift the rear shell

1. Keep the front half flat on the table.

2. Lift the rear shell straight upward.

3. Watch the Z button and shoulder-button pieces.

4. Do not turn the front shell over.

5. Photograph the untouched internal layout.

The buttons and membranes are not permanently attached and can fall out if the front shell is lifted or inverted.

Part 2: Remove the original electronics

Step 1: Remove the Z-button assembly

The Z-button contact assembly clips around the original joystick module.

1. Use a plastic spudger to release it carefully.

2. Avoid bending its plastic mounting tabs.

3. Remove it from the joystick housing.

4. Leave the physical Z button in the rear shell.

The Z-button mounting area is one of the easiest parts to misalign during reassembly.

Step 2: Remove the original joystick

1. Remove the three Phillips #0 screws securing the stick module.

2. Disconnect its plug from the original circuit board.

3. Lift the complete joystick assembly out.

4. Store it with its three screws.

The original joystick may look different when it has previously been repaired or replaced.

Step 3: Remove the controller cable

1. Lift the cable strain-relief section from the shell.

2. Free the cable from its molded routing channel.

3. Do not cut the cable.

4. Keep it attached to the original board.

Step 4: Remove the original circuit board

1. Note the placement of the L and R contact assemblies.

2. Lift the board carefully.

3. Watch for the rubber membranes beneath it.

4. Remove the original board and attached cable together.

The replacement 8BitDo board does not include new copies of every original rubber pad. Several original membranes must be transferred to the new board.

Optional cleaning

This is a good opportunity to clean the shell and buttons.

Cleaning plastic components

Only after every electronic part has been removed:

1. Remove the buttons and rubber membranes.

2. Photograph their orientation first.

3. Wash the shell and plastic buttons with warm water and mild soap.

4. Use a soft toothbrush around seams and screw posts.

5. Rinse thoroughly.

6. Allow everything to dry completely.

Do not wash the original or replacement circuit boards.

Cleaning rubber membranes

1. Wipe them gently with a slightly damp cloth.

2. Avoid aggressive scrubbing of the dark conductive pads.

3. Allow them to dry naturally.

4. Inspect them for cracks or tears.

Cleaning button contacts

Use a cotton swab lightly dampened with high-purity isopropyl alcohol on board contact areas. Let the alcohol evaporate before assembly.

IMAGE NEEDED: Shell, buttons and membranes arranged after cleaning.

Caption: Make sure every part is completely dry before installing the replacement electronics.

Part 3: Prepare the replacement board

Step 1: Inspect the board

Before installing it, check for:

• Bent components

• Damaged ribbon wires

• Loose shoulder-button contact boards

• Damaged joystick connector

• Torn insulation

• Shipping damage

Do not pull on the thin wires attached to the L, R or Z contacts.

Step 2: Transfer the original membranes

Place the original rubber membranes onto the corresponding contact areas of the 8BitDo board.

The locating holes and pegs should align naturally. Do not stretch a membrane to make it fit.

Pay particular attention to:

• D-pad membrane

• A and B membrane

• C-button membrane

• Start-button membrane

• L and R contacts

• Z-button contact

The official instructions specifically require the original controller membrane pads to be installed on the new 8BitDo circuit board.

IMAGE NEEDED: Original membranes positioned on the replacement board.

Caption: The original Nintendo rubber contacts are reused with the new circuit board.

Step 3: Install the cable-opening pieces

The kit includes pieces that fill or repurpose the opening where the original controller cable exited.

1. Identify their orientation using the supplied diagram.

2. Insert them into the top of the front shell.

3. Confirm that they sit flat.

4. Make sure any light pipe aligns with the board’s power indicator.

Do not force them backward into the opening.

Part 4: Install the 8BitDo board

Step 1: Confirm the buttons are positioned correctly

Before lowering the board:

• D-pad is seated

• A and B buttons are in the correct holes

• C buttons are correctly oriented

• Start button is centered

• L and R buttons remain in position

Most N64 buttons have keyed shapes, but they can still sit crooked enough to prevent the shell from closing.

Step 2: Lower the board into place

1. Hold the board by its edges.

2. Lower it onto the front shell.

3. Align it with the plastic locating posts.

4. Place the L and R contact assemblies into their shell channels.

5. Confirm that no wire crosses a screw post.

6. Confirm that the board lies completely flat.

The shoulder-button wires can push their small contact boards out of position. Hold each contact in its molded housing while lowering the main board. Reviewers have identified shoulder-contact placement as one of the more difficult parts of the installation.

IMAGE NEEDED: Replacement board seated with L and R contacts highlighted.

Caption: Verify that both shoulder-button contacts remain inside their molded channels.

Part 5: Install the new joystick

Step 1: Position the joystick

1. Place the replacement joystick into the center opening.

2. Align its three mounting points.

3. Confirm that the stick moves without rubbing against the shell.

4. Install its three screws.

5. Tighten them evenly.

Do not overtighten the screws into the plastic shell.

Step 2: Connect the joystick cable

1. Locate the joystick socket on the new board.

2. Align the keyed connector.

3. Push it straight into place.

4. Do not insert it at an angle.

5. Route the cable so it cannot be pinched by the shell.

Earlier Hall-effect revisions used a specific wire orientation documented by iFixit. Current TMR wiring may differ, so use the connector key and the instructions supplied with the current kit rather than relying only on wire color.

IMAGE NEEDED: Joystick connector fully inserted into the board.

Caption: Follow the keyed connector orientation and avoid folding the joystick wires sharply.

Step 3: Reinstall the Z contact

1. Position the Z-button contact over the replacement joystick’s mounting clips.

2. Confirm that its rubber contact faces the physical Z button.

3. Press it into the clips gently.

4. Verify that it cannot move sideways.

The physical Z button remains in the rear shell and presses against this contact when the controller is assembled.

Part 6: Close the controller

Step 1: Check the rear shell

Make sure the physical Z button is correctly seated in the rear shell.

Its curved surface should face outward and its internal contact surface should face the Z-button board.

Step 2: Lower the rear shell onto the front

Keep the front shell flat on the table.

1. Lower the rear shell onto it.

2. Guide the Z button over its contact.

3. Check that no wire is trapped.

4. Confirm that the expansion slot aligns.

5. Press the shell halves together gently.

Placing the rear shell onto the front shell helps prevent loose face buttons from falling out.

Step 3: Install only three screws initially

Install three widely spaced main screws and tighten them lightly.

Do not install all nine screws yet. This allows the controller to be reopened quickly when a button or contact is misaligned. iFixit similarly recommends partial reassembly before final testing.

Step 4: Insert the 8BitDo pack

Slide the rechargeable rumble pack into the rear Controller Pak slot until it is completely seated.

Do not force it at an angle.

IMAGE NEEDED: Completed controller with the battery and rumble pack installed.

Caption: The rechargeable pack provides power, Bluetooth controls, rumble and USB-C charging.

Part 7: Pair and test the controller

Nintendo Switch Bluetooth pairing

1. Move the pack’s mode switch to:

S

2. Press Start to turn on the controller.

3. Hold the Pair button for approximately three seconds.

4. Wait for the status light to blink rapidly.

5. On Switch, open:

System Settings

→ Controllers and Sensors

→ Change Grip/Order

6. Wait for the controller to appear.

7. The status light should remain solid after connection.

The first pairing requires the Pair button; later connections should reconnect automatically.

Switch wired connection

1. Set the controller to S.

2. On Switch, enable:

System Settings

→ Controllers and Sensors

→ Pro Controller Wired Communication

3. Connect the controller’s USB-C port to a USB port on the Switch dock.

4. Wait for the controller to be recognized.

Windows or Android Bluetooth pairing

1. Move the mode switch to:

D

2. Press Start.

3. Hold Pair for approximately three seconds.

4. Open Bluetooth settings on the computer or Android device.

5. Select:

8BitDo N64 Mod Kit

6. Wait for the status light to remain solid.

The official manual specifies D mode for Android and Windows Bluetooth operation.

Windows or Android wired connection

1. Set the pack to D.

2. Connect it using a data-capable USB-C cable.

3. Wait for the operating system to detect the controller.

4. Open a controller-testing utility or emulator.

5. Configure the buttons as needed.

Pairing with an original Nintendo 64

1. Set the controller pack to:

D

2. Press Start.

3. Hold the controller’s Pair button for approximately three seconds.

4. Plug the 8BitDo N64 Retro Receiver into the N64 controller port.

5. Press the Pair button on the receiver.

6. Wait for both status lights to become solid.

7. Start a game and test the controller.

The current receiver manual specifies D mode for pairing the N64 Mod Kit to the Retro Receiver.

Test every control

Before installing the remaining screws, test:

• Analog stick in all directions

• D-pad

• A

• B

• All four C buttons

• Start

• L

• R

• Z

• ZR

• Home

• Screenshot or Star button

• Rumble

• Pairing button

• USB connection

On Nintendo Switch, use:

System Settings

→ Controllers and Sensors

→ Test Input Devices

→ Test Controller Buttons

The controller should be fully tested before the shell is finally tightened.

Finish reassembly

After successful testing:

1. Turn the controller off.

2. Remove the rechargeable pack.

3. Install the remaining four main rear screws.

4. Install the two small expansion-slot screws.

5. Tighten every screw only until secure.

6. Reinsert the rechargeable pack.

7. Perform one final button test.

Do not overtighten the small expansion-slot screws.

Charging and battery indicators

Connect a USB-C cable to the pack.

The official manual identifies the following LED behavior:

• Charging: LED remains illuminated

• Fully charged: Charging LED turns off

• Low battery: LED blinks

The built-in 500mAh battery is rated for approximately eight hours of play and takes approximately one to two hours to recharge.

Automatic shutdown

The controller automatically shuts down when:

• It fails to connect for approximately one minute

• No operation occurs for approximately 15 minutes after startup

It does not automatically shut down while operating through a wired connection.

Turbo and additional buttons

In supported non-Switch modes, the Star button can be used to activate turbo:

1. Hold the button you want to repeat.

2. Press Star.

3. Repeat the combination to disable turbo.

The D-pad, analog stick and Start button do not support turbo. On Switch, the Star button functions as the screenshot button instead.

Firmware updates

8BitDo provides a firmware updater for the N64 mod kit.

1. Install the official 8BitDo Firmware Updater on Windows or macOS.

2. Insert the rechargeable pack into the controller.

3. Connect the pack to the computer with USB-C.

4. Allow the updater to identify the controller.

5. Install an available update.

6. Do not disconnect the cable during the update.

7. Retest pairing and every button afterward.

The official updater can automatically recognize supported devices and download current firmware.

IMAGE NEEDED: 8BitDo Firmware Updater recognizing the N64 controller.

Caption: Update the controller and N64 receiver separately when firmware is available.

Testing the new joystick

A replacement magnetic joystick can feel different from an original N64 mechanism even when both work properly.

Use several types of games:

Fine movement

Test slow walking and aiming in:

• Super Mario 64

• GoldenEye 007

• Perfect Dark

• Zelda: Ocarina of Time

Full-range movement

Test racing and flying in:

• Mario Kart 64

• F-Zero X

• Wave Race 64

• Star Fox 64

Circularity test

On Windows, use a game-controller test utility to check:

• Center position

• Dead zone

• Full directional range

• Smooth circular movement

• Unwanted input while untouched

The stick should return consistently to center and should not produce movement without being touched.

Advantages

• Preserves an original Nintendo shell

• No soldering

• Rechargeable through USB-C

• Bluetooth and wired operation

• Adds rumble

• Replaces worn controller cable

• Replaces a loose analog stick

• Works with Switch, Windows and Android

• Can work on original N64 hardware with a receiver

• Reversible when original components are stored

Tradeoffs

• Original N64 receiver is sold separately

• One receiver is needed per wireless controller

• Rear expansion slot is occupied by the battery pack

• Original Controller Paks cannot be inserted directly

• Modern joystick does not feel identical to an OEM stick

• Some games may expose sensitivity differences

• Shoulder-contact wiring can be awkward during installation

• Final cost may exceed a new controller when an original donor must also be purchased

Suggested Redux Gems review scorecard

Complete this after testing your controller.

Category

Score

Installation difficulty

___ / 5

Build quality

___ / 5

Analog-stick feel

___ / 5

Button responsiveness

___ / 5

Wireless connection

___ / 5

Rumble quality

___ / 5

Battery life

___ / 5

Original N64 compatibility

___ / 5

Overall value

___ / 5

Example verdict format

The 8BitDo Mod Kit gave an original N64 controller a useful second life without permanently modifying its shell. Installation was straightforward, although positioning the shoulder-button contacts required patience. The replacement stick felt smoother and more modern than the original, but it did not perfectly reproduce the taller and more mechanical feel of Nintendo’s factory stick. For Switch, PC and occasional original-N64 use, the wireless convenience outweighed the difference in stick feel.

Replace this paragraph with your actual observations.

Troubleshooting

The controller will not turn on

• Charge the battery for at least one hour.

• Confirm that the pack is fully inserted.

• Press Start once.

• Hold Start for eight seconds to force a shutdown, then restart.

• Try another USB-C cable and charger.

• Inspect the expansion-slot contacts.

The controller will not pair with Switch

• Confirm the mode switch is set to S.

• Hold Pair for three seconds.

• Open Change Grip/Order.

• Remove old controller pairings when necessary.

• Restart the Switch.

• Update the controller firmware.

• Test a wired connection through the dock.

Windows or Android cannot find it

• Set the pack to D.

• Remove the old Bluetooth entry.

• Restart Bluetooth.

• Hold Pair until the status light blinks rapidly.

• Move other wireless devices away temporarily.

• Test through USB-C.

It will not pair with the original N64 receiver

• Set the mod kit to D.

• Update both the controller and receiver.

• Press Pair on both devices.

• Try another N64 controller port.

• Remove nearby Bluetooth pairings temporarily.

• Confirm that the receiver is the N64 model.

• Remember that each receiver connects to only one controller.

A face button does not work

The rubber membrane or button may be misaligned.

1. Open the controller.

2. Confirm the button sits flat in its keyed opening.

3. Reposition the membrane.

4. Clean the conductive pad and board contact.

5. Make sure the circuit board is flat.

L or R does not work

• Reopen the controller.

• Reposition the small shoulder contact.

• Check that its wire is not trapped.

• Confirm that the rubber contact faces the button.

• Do not pull on the thin wire.

Z does not work

• Confirm the physical Z button is correctly installed in the rear shell.

• Check the Z contact board on the joystick clips.

• Make sure the rear shell presses the button onto the contact.

• Inspect its wires for pinching.

The stick moves in the wrong direction or is not detected

• Reseat the joystick connector.

• Check the connector orientation.

• Inspect the cable for damage.

• Update the firmware.

• Test with the shell slightly loosened.

• Verify that the joystick module matches the board revision.

The shell will not close

Do not force it.

Check for:

• Shoulder contact outside its channel

• Joystick wire crossing a screw post

• Z contact installed incorrectly

• Cable-opening plug sitting too high

• Button or membrane out of position

• Board not seated on its locating posts

Rumble does not work

• Confirm the game supports rumble.

• Fully insert the rechargeable pack.

• Charge the battery.

• Update firmware.

• On the original N64 receiver, switch to vibration mode.

• Confirm the receiver LED is white.

Game saves are unavailable on the original N64

Switch the Retro Receiver to memory-card mode by holding:

L + R + D-pad Up

for about five seconds. The receiver LED should turn blue. Remember that memory-card and vibration modes are selected separately.

Final thoughts

The 8BitDo Mod Kit is an effective way to preserve an original N64 controller while making it easier to use with modern systems.

Its strongest features are:

• Solderless installation

• Original Nintendo shell and buttons

• Rechargeable Bluetooth operation

• Rumble support

• Modern replacement joystick

• Compatibility with both new systems and original hardware

The main decision is whether the convenience of a modern magnetic joystick outweighs the distinctive feel of Nintendo’s original analog mechanism. Players who already own a worn or cable-damaged controller are likely to see the greatest benefit.