Buying a new SIM card is usually straightforward, but inserting it into your smartphone may not be enough to start using mobile services immediately. Whether you have purchased a new physical SIM or are switching to an eSIM, a few activation and verification steps may need to be completed before calls, text messages and mobile data begin working.
The activation process can also vary depending on whether you are getting a completely new mobile number, replacing an existing SIM or moving your connection to another smartphone. Telecom operators may have slightly different verification procedures, so following the instructions provided by your service provider is important.
Here is a simple guide explaining how to activate both physical SIM cards and eSIMs and what you can do if the new connection does not work.
How to Activate a New Physical SIM Card
The first requirement is completing the necessary KYC verification while purchasing or obtaining the SIM. Your telecom operator needs to verify your identity before activating the connection.
Once the required verification is completed, switch off your smartphone and open the SIM tray using the ejector tool. Carefully place the new SIM in the correct slot and close the tray.
Switch the phone back on and wait for it to detect the SIM and connect to the operator's network. Activation may take some time depending on the telecom company and type of connection.
If your operator asks you to complete an additional activation procedure, follow the instructions provided. This may include a tele-verification call or another verification method.
Once the network appears, test the connection by making a phone call. You should also check whether incoming calls are working.
Next, send an SMS and turn off Wi-Fi to test mobile data. If calls, messages and internet services work properly, the new SIM is ready to use.
New SIM Activation: Quick Steps
The basic physical SIM activation process can be summarised as follows:
- Complete the required KYC process with the telecom operator.
- Switch off your smartphone.
- Open the SIM tray and insert the SIM correctly.
- Restart the phone and wait for the network signal.
- Complete tele-verification or other operator-requested verification.
- Make a test call.
- Send a test SMS.
- Turn off Wi-Fi and check whether mobile data is working.
The exact procedure can vary between operators and connection types.
How to Activate an eSIM
The eSIM activation process is different because there is no physical card to insert into your phone.
First, check whether your smartphone supports eSIM technology. You should also confirm that your telecom operator provides eSIM support for your device and connection.
Once compatibility is confirmed, submit an eSIM request to your telecom company. Depending on the operator, this may be possible through its mobile application, SMS or another supported channel.
You may be asked to provide information such as your registered email address, mobile number and the phone's EID. Requirements can vary between telecom operators.
The operator may then require additional verification through an OTP, confirmation SMS or automated verification call.
Download and Install the eSIM Profile
After the request is approved, the telecom company will provide instructions for downloading the eSIM profile.
You may receive a QR code through email, or the eSIM profile may become available directly on the smartphone, depending on the operator and device.
Open the phone's mobile network settings and look for an option such as Add eSIM or Add Mobile Plan.
If you have received a QR code, scan it and follow the instructions displayed on the screen. Keep the phone connected to Wi-Fi or
