
A free satellite TV service from Astro. Watch lifetime entertainment, news, learning & information and more.
Pictures for illustration only.
Enjoy free access to 15+ TV channels & 10+ radio channels.
* Subject to Astro terms & conditions.
Step-1 |
Step-2 |
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Choose a plan & sign-up online. |
Sit back & wait for installation. |
Enjoy your new Astro / Broadband! |

A free satellite TV service from Astro. Watch lifetime entertainment, news, learning & information and more.
Pictures for illustration only.
New decoder only without satellite dish & cabling. You must have Astro/Njoi satellite dish and cable installed and working properly.
Including installation.
New decoder complete with satellite dish & cabling.
Including installation.
Applying for
| Njoi Astro UniFi Maxis |
Find your answers here.
We provide one stop service to apply Astro and Broadband for you.
You can avoid driving and queuing at the sales counter. We are the dealer that can help you to handle your application from the beginning to the end.
We do not charge you when you apply from us. There is no credit card information required to apply here. Charges are the same as you apply from the sales counter.
First, you can apply online, we will get back to you immediately during business hour. WhatsApp/Email/Fax us your Photocopy of IC (for malaysian) / Passport (for foreigners). When we receive all the information, we will proceed with your application immediately.
Once we receive your application with complete information, we will process your application immediately during business hour. The contractor from the service provider will then contact you for installation appointment once your application is approved.
Enjoy greater savings and hassle-free bill payment in one single bill for both Astro and Broadband. You get to enjoy Astro and Broadband at discounted price every month over the contract period of 24 months.
Astro offers multiple TV packs including Entertainment, Sports, Movies and Kids options. You can choose a pack that matches your viewing preferences and add optional streaming apps where available.
Yes, you may subscribe to Astro TV packs without bundling broadband. However, bundling Astro TV with Fibre Broadband may provide better monthly savings and convenience with a single bill.
For small households with light streaming and browsing, 100Mbps is usually sufficient. Larger families, gamers or heavy streamers may benefit from 500Mbps or 1Gbps plans for smoother performance across multiple devices.
Most Astro TV and Fibre broadband plans come with a 24-month contract. Early termination charges may apply if cancellation is made before the contract ends.
Yes, you may upgrade your TV pack or broadband speed at any time, subject to eligibility and coverage. A new contract period may apply depending on the upgrade.
Your monthly bill will be issued directly by Astro. You may receive it via email or access it through your Astro account. Bundled customers will receive a single combined bill for TV and broadband services.
Payment methods may include online banking, auto debit, credit card or other approved payment channels provided by Astro. Our team can guide you during the registration process.
If you experience any service interruption, you may contact Astro customer support for technical assistance. In many cases, issues can be resolved remotely or a technician will be arranged if necessary.
Yes, relocation is subject to service availability at your new address. Relocation charges and contract adjustments may apply depending on your plan.
No, you do not need a credit card to submit your application. Payment setup will be arranged directly with Astro after your service is approved.
Selected Astro TV packs allow optional add-ons such as streaming services depending on current promotions and availability. Additional monthly charges may apply.
Yes, a WiFi router is typically provided during fibre installation. The router model may vary depending on the selected broadband speed plan.
Yes, we will check the service coverage at your address before proceeding with your application to ensure broadband is available at your location.
For Malaysians, please provide a copy of your MyKad. For foreigners, provide a copy of your passport when submitting your broadband application.
After your application is approved, the service provider typically contacts you within 2 to 7 working days to arrange the broadband installation appointment.
Most Astro Broadband plans come with a 24-month contract starting from your installation date. If you relocate, a new 24-month contract may apply at your new address.
Yes, you can relocate your broadband service, subject to service availability at the new address. Your contract may reset for another 24 months from the new installation date.
Yes, you may request to relocate broadband devices within your home. Non-standard installation charges may apply and are payable to the installer directly after assessment.
Yes, you can switch to Astro Broadband. To avoid service interruption, it is recommended to activate the new service before terminating your current broadband contract.
Standard installations may be free during promotions, but non-standard installations (e.g., device relocation or complex wiring) may incur extra charges payable directly to the installer.
Starting 1 April, access to TVBAnywhere+ is no longer available to Astro customers. However, you can continue to enjoy TVB content via On Demand and TVB Jade (CH310) and Astro AOD (CH311). If you would like to subscribe to the TVBAnywhere+ app, you may still do so by purchasing it directly from TVB.
You will be notified 30 days before the expiry on the renewal of subscription and can opt-out from auto renewal at least (2) days before the auto-renewal date.
If you want to opt-out of your auto-renewal for Disney+ Hotstar, please contact our Customer Contact Centre at 03 9543 3838 and speak to one of our customer service executives to change your package according to what suits you best at least two (2) days before the next auto-renewal date. Alternatively, please WhatsApp us at 03 9543 3838 and type DH Help for further assistance.
The matches will be available on the channels Astro Arena Bola (CH803) and Astro Arena Bola 2 (CH804), On Demand and Astro GO.
If you have NOT made any changes to your Astro pack on or after 9th November 2021, you can enjoy up to four (4) concurrent streams on Astro GO anywhere, anytime. However, if you have Astro GO+ as part of your subscription, you will be upgraded to four (4) concurrent streams.
Customers with a Movies subscription via Movies, Premium 1, Premium 3 or Platinum Packs will be able to access Disney+ Hotstar on the Ultra Box and Ulti Box. Alternatively, customers can add on the 3-months Disney+ Hotstar pass for only RM54.90. Subscribe to Disney+ Hotstar via astro.com.my/Disney.


The default login of the router is available on the sticker at the back of the router. If you have done a configuration on your router previously, the password may be different
4. Once you have successfully login, the router's web-based setup page will appear. Please follow below steps for the configuration.

5. From the top menu, choose Basic and then click Wireless tab on the left menu to access to below screen.

6. Since this is a dual band router, you will have 2 Wireless Network Names (SSID) i.e. 2.4GHz and 5GHz. You may connect to any of the SSID, preferably with a stronger signal available.
7. You may change the Wireless Network Name (SSID) and the Password to follow your preferences, then click "Save" for the changes to take place.
Please reconnect to the new wireless name with the new password once completed.
Please make sure that:
To find out which Astro ID is currently linked to your account, you may submit a feedback form. Kindly select feedback type "I have an enquiry/issue with Apps
1. Ensure power cable is connected tightly.
2. Try to use another power socket / power source to eliminate faulty power sockets/power sources which could cause the issue.

3. If the issue persists, submit your feedback form for further assistance.
Starting 23 August 2022, Astro customers will progressively be able to access Disney+ Hotstar via the Ulti Box, in addition to the Ultra Box, mobile app and website.
Redemption should be done by the account holder. However, if the account holder is unavailable, immediate family members can make the redemption provided that the account holder has given them the permission to redeem using his account credentials.
Step 1: Visit Astro website at https://www.astro.com.my/
Step 2: Click "Login'
Step 3: After login, click the profile icon and select 'Manage Profile'. You may change your account password here.
For Residential Astro Pay TV customers: Yes, you are allowed to change your package to the one that best suits your entertainment needs. You may make the following pack changes:
For these changes, you will remain on same contract duration, or you can choose to change to longer commitment. If you downgrade your packs, you will be charged a cancellation fee for pack, and you can then choose a new contract for the new pack. Kindly note additional contract details for Disney+ Hotstar and Netflix.
(Please refer to the section "Changes to your Astro Contract" for more details)
Zee5 is the only app that has a change in price upon the SST increase. Prices of Netflix, Disney+ Hotstar, Viu, iQIYI, WeTV and Qalbox will not be affected.
Astro Fibre WiFi router is a dual-band edge Residential Gateway which supports two frequency bands 2.4GHz and 5GHz.
Service Tax is charged based on the date the service is rendered. For services rendered on or after 1st March 2024, the Service Tax rate would be at 8% whilst for services enjoyed before 1st March 2024, the Service Tax rate would be 6%.
STEP 1
Press "HOME" button on your remote control.

STEP 2
Navigate to Settings and press "OK".

STEP 3
Navigate to Digital Audio and press "OK".

STEP 4
Choose your preferred selection and press “OK”.

STEP 5
Select Yes, continue and press "OK" to confirm on the changes.
Otherwise, select No, go back to cancel.

You can now choose to log in using your email address, mobile number or a social account (Facebook, Google or Apple).
- Credit or Debit Cards
- Visa
- Mastercard
- Maybank2U - Pay using your Maybank2U account
- FPX - Pay using any local bank account via FPX
- E-Wallet - Touch "n Go
Tap on the "Account' screen on the navigation bar and scroll to the "Subscription' section. Tap on "TV Pack' to view your pack, box, multiroom, and Astro GO information.

STEP 1
On your remote, press the HOME button and the home menu will be displayed on top of your screen.

STEP 2
Navigate to Settings.

STEP 3
Navigate to Master PIN and press “OK”.

STEP 4
Please enter your PIN (Default PIN is 0000).

STEP 5
Please enter your new PIN.

STEP 6
Please re-enter your new PIN to confirm.

STEP 7
Your PIN successfully changed when this screen appears.

The default PIN is 0000. You may change your PIN to a secure one by doing this at Settings, under your Preferences, select PIN Management, enter your old PIN or default PIN and proceed to create a new PIN.

The warranty period will be 24 months.
In your first Astro bill, the first month's bill will be deducted accordingly excluding tax. You will still need to pay the full tax amount for your first month as per your first month's bill.
Note: Advance payment is only applicable to Astro TV pack purchases. If you subscribe to an Astro Fibre + TV bundle, only one month of your TV subscription fee (excluding tax) is required to be paid upon sign-up. The full tax amount and the first-month subscription fee for Astro Fibre will be paid on your first month's bill.
No, Astro & Broadband only offers a 24-month contract period upon sign up.
The eKYC link is only valid for 3 days to complete the eKYC verification process. You will be required to submit a fresh Astro account application.
Upon submitting your application, you will receive the eKYC link via SMS/email/astro.com.my to complete the eKYC verification within 3 days.
Please ensure to put your box on standby mode to refresh the signal.
a. Using IVR
1. Dial 03-95433838 and select you preferred language.
2. Select Account Related.
3. Select Technical Assistance.
4. Select Refresh Smartcard.
b. Using MyAstro web
STEP 1
Go to https://myastro.astro.com.my/ in your web browser.
STEP 2
Key-in your Email / Mobile number and password. Then, press LOG IN.
STEP 3
Click on TV pack.
STEP 4
Choose Main Room for the Primary Box; else choose Multiroom (If any).
STEP 5
Click on "Refresh" to refresh signal on your box.
For Main Box
For Multiroom
STEP 6
After tap the Refresh, below notification will be displayed as below.
For Main Box
For Multiroom
c. Using MyAstro App
STEP 1
Open myAstro App and click "Login".
STEP 2
Key-in your Email / Mobile number and password. Then, press "LOG IN".
STEP 3
Go to "Account".
STEP 4
Scroll down to "TV pack" and click on it.
STEP 5
Choose Main Room for the Main Box; else choose Multiroom (If any).
STEP 6
Tap on "Refresh" to refresh signal on your box.
For Main Box
For Multiroom
STEP 7
After tap the Refresh, below notification will be displayed as below.
For Main Room
For Multiroom
Slow browsing using LAN cable
Looks like there is something wrong with your service connection.
Please run the Speed Test and attach the picture or screenshot of the speed test in the Feedback Form below, in order for us to provide further assistances.
Click here for Speed Test guideline.
Slow browsing using LAN cable
Looks like there is something wrong with your service connection.
Please run the Speed Test and attach the picture or screenshot of the speed test in the Feedback Form below, in order for us to provide further assistances.
Click here for Speed Test guideline.
Quick Info
A Speedtest is a service that provides free analysis of Internet access parameters, such as connection data rate.
Slow browsing using Wi-Fi
1. Router Positioning
Most people underestimate the importance of picking a good spot for a Wi-Fi router. Even a small shift in positioning could end up being the difference between day and night.
i) High vs. Low
Put the router as high up as possible to extend the broadcasting range of the radio waves. This also helps clear the router of possible interferences.
ii) Concrete & Metals
Make sure your router isn't blocked by any other objects, especially devices that are electronic. Also, avoid placing your router in your basement as this area is usually enclosed by a lot of concrete, which can be almost impossible for Wi-Fi signals to penetrate.
iii) Distance to Router
The further away from your router you get, the weaker the Wi-Fi signal. Therefore, the best option is to place your router as close to your devices as possible, but this is only practical if you have one main area where you tend to use your devices.
Otherwise, you should place your router near the center of your home. After all, Wi-Fi broadcasts in 360 degrees, so it doesn't make sense to put it at one end of the house.
2. Wireless Interference & Noise
You've probably never noticed but there are wireless signals all around you wherever you go and they're passing through you all the time. From where? Electronic devices, Wi-Fi routers, satellites, cell towers, and more.
Although Wi-Fi is supposed to be on a different frequency than most of these devices, the amount of radio noise can still cause interference. Some common causes of interference include:
3. Surrounding Wi-Fi signals
A truth of the modern world is that every household has their own Wi-Fi network, which can cause issues with channel overlap. This can be somewhat problematic in a townhouse, but is especially problematic in housing complexes and apartments where there can be many routers within close proximity.
Which is why it's important that you pick a good channel in your router settings. Modern routers can choose channels for you automatically, but sometimes it's better to investigate and find the best channel yourself.
4. Usage
More likely, however, is that the people on your network such as friends, roommates, or family members are participating in bandwidth-heavy activities like gaming and streaming Ultra box/ Netflix.
Fortunately, if this is the case, you can prioritize your own network traffic by enabling Quality of Service in your router settings.
If the problem persists, please run a Ping Test, Traceroute Test and attach the picture or screenshot of both test results in the Feedback Form below, in order for us to provide further assistances.
Please make sure to attach the required screenshot(s) in ONE file (i.e. Microsoft Word document, PDF, Image file) before submitting the form.
Quick Info
A Speedtest is a service that provides free analysis of Internet access parameters, such as connection data rate.
A Ping Test shows how long it takes for packets to reach host.
A Traceroute Test traces the route of packets to destination host from our server.
As a rule of thumb, this issue might happen when the devices are not equipped with minimum requirement above that supports the subscribed internet speeds:
As mentioned above however, it is important to note that despite meeting the device minimum requirements, it is not a guarantee that devices connected over WiFi will be able to achieve maximum subscribed internet speeds due to the following:
Note:
Astro and its service providers will not offer any guarantees for compatibility of the customer's equipment (e.g., Personal Computer, Notebook, printers) nor provide on site troubleshooting for WiFi service issues related to the customer's equipment.
For customers that would like to subscribe to Multiroom with a box installation,
(i) customers on the old packages (example Family Pack, Starter Pack, Value Pack, Super Pack or Super Pack Plus) will have to subscribe to our new packages first by sending "Switch" to 03-9543 3838 via WhatsApp;
(ii) customers on the new Astro packages can subscribe by visiting product.astro.com.my/multiroom or WhatsApp "Hi" to 03-9543 3838.
Multiroom (Smart TV) is a secondary subscription that allows you to enjoy your favourite Astro shows instantly in different rooms at the same time on your Smart TV. Subscribe to Multiroom (Smart TV) at RM29.99 per month (excl. any govt. tax), and simply download the Astro app on your second TV-screen and connect to your home Wi-Fi to stream.
STEP 1
On your remote, press the HOME button and the home menu will be displayed on top of your screen.

STEP 2
Navigate to Settings.

STEP 3
Navigate to STB Diagnostics and press "OK".

STEP 4
Select Household Diagnostics and press "OK".

STEP 5
Details information of Household Diagnostics screen will be displayed.

For technical visit, the current fees will remain unchanged i.e.: 8% Service Tax absorbed by Astro. As for installation fees, current fees will remain unchanged i.e.: 6% Service Tax has already been included in installation fees, as 2% will be absorbed by Astro.
Please check your internet speed and connection status via internet connection test. If your internet is working fine and the issue persists, proceed to submit report via WhatsApp or Feedback Form.
No, you need to have an Astro ID to enjoy the features.

1. Please standby computer/laptop to access to the internet and connection must be via LAN (cable) [Connect the LAN (cable) to the yellow port in Maxis Router and direct to computer/laptop].
2. You may open any web browser such as Google Chrome, Internet Explorer, Mozilla Firefox and etc.
3. On the address bar, please go to http://192.168.1.254 and below page will appear.

If below box appear, please enter required details as below:

USERNAME: Administrator
PASSWORD: (ACCESS KEY AT THE RGW STICKER)
(These are the defaults, if you have done previous configuration on your router the password may be different)
4. Once enter into the page ‘’TECHNICOLOR TG784N V3’’, you may follow below step for the wireless information.
i. Click "Configure”

ii. Once clicked configure button, below screen will appear.

A. This is your current password. Please delete and enter the new password.
B. Once completed the selection; click the "Apply" button. Router will auto reboot and connection re-establish after few minutes.
Please re-connect your wireless using the new password.
You need to identify your modem type by looking at the modem light indicator before proceeding with troubleshooting.
The type of modem is indicated as per below:
MODEM INDICATOR 1
MODEM INDICATOR 2
MODEM INDICATOR 3
BTS 1

3. Please ensure the LAN cable is securely connected from router to your devices (Astro Box/Laptop etc.)
Modem connection
Router connection
4. Now, power on modem and router, wait for 2 minutes to stabilise the devices after reboot. Your internet services should be restored.
5. If issue persists, please connect to our agent and attach your modem light indicator picture for further assistance.
BTS 2
1. Please power off your modem and router.
(This is to refresh your modem and router performance)
2. Make sure the fibre cable from your wall socket to modem is securely connected.
3. Please ensure both LAN cables on the Modem (LAN Port 2) and Router (Port 1) are properly connected.
Modem connection
Router connection
4. Power on your modem and router, wait for 2 minutes to stabilise the devices after reboot. Your internet services should be restored.
5. If issue persists, please connect to our agent and attach your modem light indicator picture for further assistance.
BTS 3
1. Please ensure your modem and router power plugs are securely connected to the power socket.
2. Alternatively, try to connect the power plug to a different power socket or power source. This step is to eliminate the possibility of faulty power socket which could cause the issue.
3. If issue persists, please connect to our agent for further assistance.
Here's what you can do with your unused satellite TV devices:
If you have an Ultra or Ulti Box, you may:
1. Return your device to us via Arranged Pick-up:
Step 1: Please call Astro's Contact Centre at 03-9543 3838 to schedule an arranged pick-up by one of our Astro agents.
Step 2: Just sit back and relax! Our courier partner, Citylink will come to your doorstep, dismantle the satellite dish for you and retrieve the devices.
2. Return your device to us via Dropoff:
Step 1: Please gather your device(s) and click here to find a Customer Service Centre (CSC) or Astro Authorised Retailer (AAR) near you.
Step 2: Don't worry, it's free! Simply walk in during opening hours and hand over the device(s) to one of our Astro agents.
Note: An installer's visit is required to dismantle your satellite dish. However, if you have a Box or other satellite TV devices at home that do not require dismantling, you may walk into any of our authorised dealers and hand them over to the agent.
If your Satellite TV device is NOT an Ultra or Ulti Box, you may:
1) Recycle your device:
For all Ultra or Ulti Boxes, please return them to Astro via drop-off at a CSC or AAR near you or schedule a pick-up appointment via 03-9543 3838.
For other older Boxes or Satellite TV devices, you are required to discard them only at registered collection centres for proper handling and management of e-waste in an environmentally sound manner. Click here to find a registered collection centre near you.
Note: Upon termination of your Astro service, all Ultra and Ulti Box customers are required to return their devices to Astro. Failure to do so within 14 days of termination may incur a fee of RM100 (not inclusive of Govt. Tax). For customers on all other boxes, please discard your box only at registered collection centres to ensure we all play our part in protecting the environment.
Arranged Pick-Ups
1) I missed the pickup appointment; what do I do now?
Our agent will make two attempts to retrieve the device(s) and dismantle your satellite dish within a period of 14 days, failing which the penalty of RM100 (not inclusive of Govt. tax) would be imposed.
2) Can I reschedule my pickup date?
Yes! Please call Astro's Contact Centre at 03-9543 3838 to reschedule your pickup date.
3) My old devices do not require dismantling; do I have to pack them before handing them over to the delivery agent?
Please pack your device(s) in their original box/packaging if possible. If this option is not available to you, just hand the device(s) over to the delivery agent without any packaging. You will not be charged any fees if the original packaging has been damaged/lost.
4) Do I have to print anything or fill in any forms before handing my device(s) over to the Astro agent?
No, you do not have to prepare any documents before handing your device(s) over to the Astro agent. All you have to do is get your device(s)ready before the Astro agent arrives to ensure a smooth handover process.
5) I have an old/unused satellite dish at my home and I am not an Astro customer; can I still schedule an installer visit to dismantle and return it?
Yes! Not to worry, you can still schedule an installer visit to dismantle the satellite dish from your home.
Drop-offs
1) Do I have to pack my device(s) before handing it over to the Astro agent?
Please pack your device(s) in their original box/packaging if possible. If this option is not available to you, just hand the device(s) over to the Astro agent without any packaging. You will not be charged any fees if the original packaging has been damaged/lost.
2) There are no Customer Service Centre (CSCs) or Astro Authorised Retailers (AARs) near me; what do I do now?
Please opt for courier pick-up if there are no CSCs or AARs near you. Call 03-9543 3838 now to schedule a pick-up appointment by one of our courier partners if you are holding an Ultra or Ulti Box For non-Ultra or Ulti boxes, you may recycle your box at a registered collection center. Click here to find a registered collection center near you.
3) Do I have to print anything or fill in any forms before handing my device(s) over to the Astro agent?
No, you do not have to prepare any documents before handing your device(s) over to the Astro agent. All you have to do is hand the device(s)over to the agent and you're done! You will also receive an acknowledgment slip after successful handover.
4) I found my Box and Smart card, however, the cable(s) that came with it is lost; will there be any penalty fees?
No, please return your old Plug & Play Boxes and Smartcard. There will be no penalty fees if the cable is damaged or lost.
Recycle via Registered Collection Centres
For all recycling-related questions, please click here.
Not to worry, we are only a phone call or a message away! Call or WhatsApp our Customer Contact Centre at 03-9543 3838 and an Astro agent will be available to assist you immediately.
Yes, you can go to "Account' and scroll to "Subscription' and select TV pack. You may reach out to us via WhatsApp at 03-9543 3838 for more details.
We have taken into account customer feedback when introducing these new packs. While we understand the value customers see in purchasing their preferred channels individually, the packaging of media drives the economies of scale necessary to offer content at an affordable price to all our customers.
Other than the New Astro Packs that offer great value, customers may purchase selected channels or packages as content add-on such as Korean Pack, Horror Pack etc.
Please contact us through one of our platforms found here or Self-serve by logging in to Astro Self-Service Portal within 3-7 days before moving out and we will sort everything out for you!
Liga Malaysia is available for all customers with a HD enabled box including Zapper, DMT5, Ulti Box and Ultra Box.
STEP 1
Check on your TV input to ensure correct input selected.
If issue remains, switch off the power for your box and make sure that the adapter's power light is off.

STEP 2
Unplug the HDMI cable from your box and plug it back in securely.

STEP 3
Switch on the power for your box and make sure that the adapter's power light is on. Please wait for 5 minutes.

STEP 4
Turn on your box. You should no longer be experiencing this problem.

If issue persist, please submit the issue on our Feedback Form with the error details and provide sim card number for assistance.
For information about the Disney+ Hotstar app functions and specifications, please visit help.hotstar.com or email disneyplus.my@hotstar.com.
Customers with a Movies subscription via Movies, Premium 1, Premium 3 and Platinum packs will be able to access Disney+ Hotstar on the Ultra box.
Alternatively, customers can add on the 3-month Disney+ Hotstar pass for RM54.90. Subscribe to Disney+ Hotstar via astro.com.my/Disney.
For more support and options for your subscription, please WhatsApp us at 03 9543 3838 and type DH Help. Alternatively, you may visit astro.com.my/Disney for more information.
Yes, you may terminate the service. However, an early cancellation fee will be applied for terminations/cancellations within 24 months. Please refer to the Astro Fibre's cancellation details.
Auto-debit payment will be debited from your account 5-7 working days after your billing cycle date.
If your auto-debit payment is unsuccessful, you will receive an SMS alert.
Yes, a penalty fee of RM200/Mesh WiFi unit will be imposed if the customer fails to return the device(s). The courier company will make two attempts to retrieve the Mesh WiFi unit(s) within a period of 30 days, failing which the penalty would be imposed.
Only Visa, MasterCard, and American Express Credit Cards and Debit Cards issued by banks in Malaysia are accepted by Astro-owned payment channels. Official Astro payment partners may have different policies - please check with your preferred payment partner for the latest information.
For all new Astro Fibre customers with the RG21 router, the Astro Fibre App will be installed on your mobile device for you during installation. Alternatively,you may refer to the user guide here for self-installation.