>
How to Fix the PCB Motherboard on a Garmin Fenix 5X (DIY Repair Tutorial)
Does your Garmin Fenix 5X have no GPS signal, or does the heart rate sensor fail to detect a pulse? If the watch loses sensor functionality or several hardware components, including the display, battery, and buttons, stop working simultaneously, it may be time to replace the main circuit board.
In this DIY repair guide, we show you how to fix a malfunctioning PCB motherboard on the Garmin Fenix 5X smartwatch using OEM spare parts. You will find all the tools needed for this repair, along with OEM replacement parts, below.
Want to get your smartwatch repaired by a professional? Send us your Garmin Fenix 5X, and our repair ninjas will restore your device to peak working condition. Follow the link, select the issues you’re experiencing, click Continue, enter your email ID, and click Get My Estimate to view the repair cost instantly.
Repair Difficulty
Moderate / Requires 30-45 minutes to complete.
This repair involves handling delicate internal components, including ribbon cables, a battery, connectors, small screws, and adhesive tape. You don’t need technical skills or prior experience to complete the repair. With the right tools, a bit of patience, and attention to detail, you can replace the display on the Garmin Fenix 5X yourself.
Replacement Parts You’ll Need
Restore the form and functionality of your Garmin Fenix 5X with original replacement parts. Select the OEM spares from the drop-down menu below and bring your device back to peak working condition.
- Garmin Fenix 5X 51MM Smartwatch Repair Spare Replacement - Parts
- Garmin Fenix 1–7 Repair Tool Kit – Professional Screen & Battery Disassembly Tools
Get an OEM replacement motherboard for your Garmin Fenix 5X today. Click the link to visit our store, then scroll down to the Customers Also Add section to purchase the original replacement part and the tools you’ll need for this repair at a discount.
Tools You’ll Need
Before starting the Garmin Fenix 5X main board replacement, gather the following tools. Using the correct instruments will help you complete the repair successfully. We used the following tools and recommend them for a safe, professional-quality DIY fix at home.
- T5 Screwdriver
- T6 Screwdriver
- 1.5mm Flathead Screwdriver
- B7000 Adhesive
- 3M Double-sided Tape
- Heat-proof Anti-static Rubber Work Mat
Not ready to invest in tools yet? Find your device in our repair catalog, select the issues it’s experiencing, and send it to us. Our repair ninjas will restore your device to peak working condition.
Step-by-Step DIY Guide to Replacing the Malfunctioning Main Board on the Garmin Fenix 5X Smartwatch at Home
In this detailed DIY repair guide, we show you how to replace a dead or malfunctioning PCB main board on the Garmin Fenix 5X yourself. Follow each step carefully and use the accompanying images as a visual guide to complete the repair with confidence.
Step 1: Extract the Display from the Watch Housing
1.1. Unfasten the 5 screws from the watch face with a T6 screwdriver and store them carefully in one of the slots provided on the rubber work mat.
1.2. Flip the display gently to reveal the display connection. Remove the protective film from the connector port, then disconnect the ribbon cable with a flathead screwdriver and set the touch screen aside.
Step 2: Extract the Old Main Board
2.1. Disconnect the battery from the main board with a flathead screwdriver.
2.2. Unfasten the 2 screws holding the main board to the watch housing with a T5 screwdriver.
2.3. Remove the GPS antenna and set it aside in one of the slots provided on the rubber work mat.
2.4. Insert a flathead screwdriver underneath the main board where there are no components to dislodge it from the clips, then flip the housing and shake the main board out.
2.5. Pry the battery away from the adhesive tape on the malfunctioning main PCB with your fingers.
2.6. Disconnect the battery ribbon cable from the main board and discard the PCB.
Step 3: Install a New Main Motherboard
3.1. Connect the battery ribbon to the new main board.
3.2. Stick the battery to the main board. If the old adhesive on the battery fails to stick to the new main board, cut and apply a fresh piece of double-sided tape to the battery.
3.3. Align the new main board with the watch housing and press down till it clips into place.
3.4. Connect the battery ribbon to the main board.
3.5. Fasten 2 screws to secure the main board to the watch housing.
Step 4: Reassemble the Garmin Fenix 5X Multisport Watch
4.1. Place the GPS antenna back into the slot provided in the housing. Align the 2 clips on the edge of the antenna with those on the housing, and gently press down to secure them.
4.2. Connect the display ribbon to the main board with a flathead screwdriver.
4.3. Place the gasket into the groove along the perimeter of the housing to ensure a water-resistant seal.
4.4. Align the display with the watch housing and secure them together with 5 T6 screws.
Congratulations! Your Garmin Fenix 5X Smartwatch is Ready to Use
You have successfully replaced the cracked, broken, or flickering touchscreen display on the Garmin Fenix 5X smartwatch. Test the touch response and inspect the watch casing for proper alignment to ensure a water-resistant seal.
If you found this guide helpful and would like to try your hand at DIY gadget repair, visit our store for essential tools and spare parts. You can also check out our at-home smartwatch repair guides for other popular brands, including Apple, Fitbit, and Samsung.
Have questions or suggestions about this repair? Text a repair ninja or email us, and we’ll reply shortly.