Quick answer
Before you fly, install the Malaysia eSIM on Wi-Fi or wait until you have Wi-Fi after landing. Days start at install. When you land, turn on Data Roaming for the eSIM and keep it off on your home SIM. TikTok and most AI apps, such as ChatGPT, do not work on this line.
Do I need documents for this eSIM?
No. No documents are required. You do need an unlocked phone that supports eSIM. The QR arrives by email after payment.
What should I do with the eSIM before the flight?
Plan days start when you install. Each day is a rolling 24 hours, not a midnight reset, so installing the day before uses one day. Installing on Wi-Fi when you arrive starts the clock then. Pick one day more than your stay.
- 1Check the phone supports eSIM and is carrier-unlocked.
- 2Buy the plan and wait for the QR email. The QR also stays on your order page.
- 3Install it on Wi-Fi the day before you fly, or on Wi-Fi when you land, and label it Malaysia.
- 4Keep Data Roaming off on your home SIM.
- 5After landing, turn on Data Roaming for the Malaysia line and choose it for mobile data.
- 6If data does not connect, set the APN to my3g.
Which apps should I know about?
- Grab for ride-hailing.
- WhatsApp. Calls work over this data.
- Maps, including any offline maps you save on Wi-Fi before you go out.
- TikTok and most AI apps, such as ChatGPT, do not work on this eSIM.
What else is worth knowing?
- The currency is the ringgit (MYR).
- Places named for this eSIM: Kuala Lumpur, Penang, Langkawi, Malacca, Johor Bahru, and Kota Kinabalu.
- There are no top-ups. Buy a new plan if you need more data or days.
- The QR is valid for 30 days and scans once. Do not delete the eSIM during the trip.
Frequently asked questions
Should I install the eSIM before or after the flight?
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Either works if you have Wi-Fi. Installing the day before is easier, because you can scan the QR from another screen, but it uses one day of the plan. Installing when you land starts the days then.
How long is the QR code valid?
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30 days. It scans once, so install it on the phone you will travel with and do not delete the eSIM afterwards.
Will TikTok work after I land?
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No. TikTok and most AI apps, such as ChatGPT, do not work on this eSIM.
Related guides
Does my phone support eSIM? Malaysia eSIM compatibility check
A 30-second check before you buy.
How to install a Malaysia eSIM on iPhone
Scan the QR, label the line, and turn on Data Roaming.
How to install a Malaysia eSIM on Android (Samsung, Pixel)
Samsung Galaxy and Google Pixel steps, from the same QR.
Kuala Lumpur International Airport (KUL) eSIM guide
The international airport for Kuala Lumpur.