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Last updated: November 2026 · By Dynamic EE Zone, Puchong
Quick answer: If the thin fibre cable between your wall socket and your fibre modem (ONT) is cut, bent or pulled out, you can usually replace it yourself with a new fibre patch cord that has the same connector type and colour. A replacement patch cord in Malaysia costs from about RM2 to RM10. If the damage is outside your house or inside the wall, contact your internet provider, because that cable belongs to them.
Step 1: Find out which cable is damaged
A home fibre connection in Malaysia usually has three parts:
| Part | Where it is | Who fixes it |
|---|---|---|
| Outdoor drop fibre | From the pole or underground to your house | Your internet provider |
| Indoor fibre to the wall socket | Inside the wall or ceiling | Your internet provider |
| Patch cord | From the wall socket (fibre wall box) to your modem/ONT | You can replace it yourself |
If the broken part is the short cable that plugs into the white fibre wall box on one end and the modem on the other, you can fix it in a few minutes.
Common signs of a broken patch cord:
- The LOS or PON light on your modem is red or blinking
- The cable has a sharp bend, a crushed spot or a chewed section (pets and rats are common culprits)
- The connector head has snapped or come loose
Step 2: Check the connector type and colour
Look at both ends of your old cable. Almost all Malaysian home fibre uses SC connectors (square, push-in type), but the colour matters:
| Connector colour | Type | What it means |
|---|---|---|
| Green | SC/APC | Angled polish. Must connect only to other APC (green) ports. |
| Blue | SC/UPC | Flat polish. Must connect only to other UPC (blue) ports. |
Each end can be different. For example, one end green and the other blue. Buy a cable that matches both ends exactly.
⚠️ Never force a green (APC) connector into a blue (UPC) port or the other way round. It may seem to fit, but the signal loss will be high and it can damage the connector faces.
Not sure? Take a photo of both ends and send it to us on WhatsApp at 016-203 9260, and we will tell you which one to buy.
Step 3: Measure the length you need
Measure the distance from the wall box to the modem and add about 50 cm so the cable is never pulled tight. Common lengths are 1 m, 2 m, 3 m and 5 m. Fibre should never be bent sharply, so choose a longer cable rather than one that is too short.
Step 4: Replace the cable
- Switch off the modem.
- Unplug the old cable from the wall box and from the modem. Pull the connector body, not the cable.
- Do not look into the fibre port or the cable end. Fibre carries invisible laser light that can hurt your eyes.
- Remove the dust caps from the new cable and plug it in until it clicks.
- Turn the modem back on and wait 2 to 3 minutes. The LOS light should go off and the PON light should turn steady green.
If the LOS light is still red after replacing the patch cord, the problem is likely in the wall or outside the house. Call your internet provider.
How much does a replacement cost in Malaysia?
Prices at our Puchong store at the time of writing:
| Item | Price from |
|---|---|
| SC/UPC to SC/UPC patch cord (blue–blue), 3.0 mm | RM1.35 |
| SC/APC to SC/APC patch cord (green–green), 3.0 mm | RM2.40 |
| SC/UPC to SC/APC patch cord (blue–green), 3.0 mm | RM3.20 |
| Pre-connectorized indoor drop cable SC/APC, longer runs | RM10 |
| Visual fault locator (red light pen to find breaks) | RM22 |
Prices depend on length. See the full range in our Patch Cord and Pre-connectorized categories.
How to find exactly where the cable is broken
If you cannot see the damage, a visual fault locator (VFL) helps. It is a pen that shines a bright red light into the fibre. Wherever the cable is broken or bent too sharply, you will see red light leaking out. Installers use VFLs every day, and they cost from about RM22. See our VFL range.
Frequently asked questions
Can I join a broken fibre cable with tape or glue?
No. Fibre is glass thinner than a hair. A broken fibre has to be fusion spliced with a machine or replaced. For a home patch cord, replacing it is cheaper and faster.
Is the cable from the wall to my modem the same for Unifi, Maxis, TIME and other providers?
They all use single-mode fibre with SC connectors, but the connector colour (APC green or UPC blue) can differ. Always match what is already installed.
Can I make the fibre cable longer?
Yes. Buy a longer patch cord, or use an SC adapter (coupler) to join two cords of the same type. A single longer cable gives a better signal than two joined cables.
Where can I buy a fibre patch cord near Puchong or Klang Valley?
Dynamic EE Zone has a walk-in store at 37G, Jalan DU 1/2, Bandar Kinrara, 47180 Puchong, Selangor, open Monday to Saturday, 9 AM to 6 PM. You can also order online or on WhatsApp for delivery.
Need help choosing? WhatsApp a photo of your cable to 016-203 9260 or visit our store in Bandar Kinrara, Puchong. Shop fibre patch cords →
