Install your Malaysia eSIM at home, before you fly
- At home, on Wi-Fi
- Within 30 days
- Keep the line off
The short answer
Add the eSIM at home over Wi-Fi, before the flight, no later than 30 days after the purchase. Scan the QR code from the order page, give the line a name, and leave it off until you land. Once added, do not delete it: a QR code usually installs only once.
Checked October 2, 2026
Before you scan
Your phone has to clear two conditions: eSIM support and a carrier unlock; the phone check shows how to confirm both. Get on a steady Wi-Fi signal: the phone downloads the eSIM over the internet, so home is the easiest place to do it.
Scan the QR code
Have your order page open on a second screen, or print the code out. That code arrives on screen the moment you pay, and it stays on the page, so save the link. On an iPhone, the path is Settings, Cellular, Add eSIM, then scan. On Android, open the SIM settings (Connections, then SIM manager on a Samsung; Network & internet, then SIMs on a Pixel) and add one there. When the camera refuses the scan, type the details in by hand from the order page.
After it is added
Give the line a name you will recognise, such as Malaysia. Leave it off until landing, and do not delete it: in most cases a QR code installs only once. On landing, follow switch it on after landing.
If it fails (Install the eSIM)
When the scan fails or the install stalls, stay on Wi-Fi and run it once more. If it fails a second time, contact the store’s support with the order page link and the phone model before another attempt.
Questions
How to install eSIM on Android?
Go into the SIM settings, add an eSIM and scan the QR code from the order page: on a Samsung that is Connections, then SIM manager; on a Pixel, Network & internet, then SIMs. When the camera will not scan, enter the details manually.
More help
Switch your Malaysia eSIM on when you land
After landing in Malaysia, switch the eSIM line on and choose it for mobile data. If data does not start, turn on data roaming for that line only.
Data roaming on a Malaysia eSIM: when you need it
The eSIM runs on a Malaysian network, and the store says switch data roaming on for the eSIM line only when it does not connect. Where the switch is.
Malaysia eSIM not connecting: the checks, in order
Is your eSIM not working in Malaysia? Check the line, mobile data and airplane mode, then data roaming, pick the network by hand, and write to support.
Malaysia eSIM refunds: when you get your money back
A full refund if the eSIM does not work and we cannot fix it. A working eSIM is not refunded. How to ask, and where the money goes.
Will your phone take an eSIM? Check before buying
Dial *#06#: if your phone shows an EID, it has an eSIM. It must also be unlocked. Check your model before you buy a Malaysia eSIM.
Still stuck?
Orders, QR codes and refunds are handled by VietSIM support. Write with the link to your order page and your phone model.
contact@vietsim.com