With a cracked display, broken housing, charging problems, or general internal maintenance for your Garmin Rino 650, knowing how to correctly take apart and put back together your GPS could mean saving both time and money.

From swapping out the Garmin Rino 650 LCD display, fitting in a new Garmin Rino 650 battery, or replacing the Garmin Rino 650 back cover housing, this tutorial will help you through the whole repair process.

Unlike most contemporary GPS receivers, which are made almost entirely using adhesives, the Garmin Rino 650 is screwed and sealed in by waterproof rubber gaskets, making it one of the easiest Garmin GPS handhelds to repair.

Garmin Rino 650 Disassembly Guide

Step 1: Remove the Battery

Switch off the device before proceeding.

Flip over the Garmin Rino 650 and identify the battery latch on the rear side of the device. 

Lift the metal D-ring latch, turn it about 90 degrees anticlockwise and remove the battery.

Should you find that your battery does not charge anymore, this is the best opportunity for you to replace the battery of your Garmin Rino 650.

Step 2: Remove the Back Housing Screws

Use a T6 Torx Screwdriver to undo the six screws fixing the casing.

Screws are found at:

• 2 screws on each side of the external casing
• 2 screws in the battery compartment area
• 2 screws under the waterproof rubber covering of the upper side.

Step 3: Separate the Front and Rear Housing

Insert a plastic opening tool into the seam between the front and rear housing.

Carefully work around the edge of the device to release each retaining clip.

Avoid inserting the tool too deeply, as the waterproof rubber gasket sits just inside the housing. Damaging the gasket may reduce the device's water resistance.

Take your time to prevent tearing or deforming the sealing gasket.

Step 4: Disconnect the Internal Cables

Before fully separating the housing halves, disconnect the internal ribbon cables and connectors.

These typically include:

• LCD display ribbon cable
• Speaker connector
• Additional motherboard connectors

Use a plastic spudger or fine-tip tweezers to gently lift each connector.

Never pull directly on the ribbon cables, as they can be easily damaged.

Step 5: Remove the Motherboard

Disconnect the LCD connector from the motherboard.

Carefully lift the motherboard out of its mounting position.

Slowly slide the board downward while guiding the two antenna wires out of their channels.

Avoid bending the antenna cables excessively, as they are delicate and difficult to replace.

Step 6: Remove the Screws Securing the LCD Screen

After removing the motherboard, the LCD assembly becomes accessible.

Use the T6 Torx screwdriver to remove the four screws securing the LCD module.

Note:

Note: A black sealing gasket is installed between the LCD screen and the frame. Be careful when removing the display, as this gasket can be easily damaged.

If the gasket comes off during disassembly, you'll notice two retaining tabs on its underside. These tabs fit securely into the two matching slots in the frame. The gasket is designed to install in only one orientation, so do not force it into place.

During reassembly, make sure to apply even, consistent pressure across the entire LCD screen. Uneven pressure may cause the sealing gasket to shift out of position, preventing it from seating properly between the display and the frame, as shown in the image.

Step 7: Remove the Screen for Garmin Rino 650

There are two plastic retaining clips located at the bottom of the screen frame. Once the screws have been removed, these two clips are the only parts securing the screen assembly.

Using the flat edge of a plastic spudger, apply pressure to the right side of the screen assembly and push it to the left to release the right-side plastic retaining clip.

After the retaining clip has disengaged from the frame, gently lift the screen upward. The screen assembly should come off easily.

If your display suffers from any of the following problems, now is the perfect time to install a new Garmin Rino 650 LCD screen:

• Cracked screen
• Black screen
• Dead pixels
• Touchscreen not responding
• Display discoloration or image distortion

Garmin Rino 650 Reassembly Guide

Reassembly follows the reverse order of disassembly, but several important steps require extra attention.

Install the LCD Assembly for Garmin Rino 650

Verify that the waterproof rubber gasket is correctly positioned before installing the LCD module.

When tightening the four mounting screws, use a diagonal (cross-pattern) tightening sequence to distribute pressure evenly.

Over-tightening one side first may shift the waterproof gasket and reduce the device's sealing performance.

Reinstall the Motherboard

Slide the motherboard back into place while routing both antenna cables into their original guide channels.

Reconnect:

• LCD connector
• Display ribbon cable
• Speaker connector

Ensure every connector is fully seated before proceeding.

Close the Housing

Inspect the waterproof rubber gasket around the entire housing.

Make sure it is not twisted, folded, or pinched.

Press the front and rear housings together until all retaining clips are securely engaged.

Reinstall the six T6 Torx screws.

Reinstall the Battery

Insert the battery into the compartment.

Rotate the D-ring latch clockwise until the battery is securely locked.

Power on the device and verify that the following functions operate correctly:

• LCD display
• Touchscreen response
• Physical buttons
• Speaker audio
• GPS startup and satellite acquisition

Common Garmin Rino 650 Repairs

Conclusion

Whether you're installing a new Garmin Rino 650 LCD screen, replacing the Garmin Rino 650 battery, or installing a Garmin Rino 650 back cover housing, following the correct disassembly and reassembly procedures will help restore your device while preserving its original waterproof performance.

By handling the waterproof seals carefully and reconnecting every internal component properly, you can extend the lifespan of your Garmin Rino 650 and complete the repair with confidence.