• Open Camera App in your device where you want to install & activate eSIM data plan.

• Now scan the QR Code which you have received in your registered email id. After that Tap on the notification that appears on top says "Data Plan".
  
  
• Follow the instructions on the screen.

For Apple iOS Devices:-

• Once complete, go to Settings > Cellular (Mobile or Mobile Service).
• Select the new eSIM plan under Cellular Data Plans, and set Data Roaming to ON.

For Android Devices:-

• Once complete, go to Settings > Network and Internet.
• Turn on Data Roaming.
• Set the eSIM as the Mobile Data SIM.
  
  

For Manual Activation:-

• If you can't scan the QR code, manually add a new data plan to your device with the Activation Code & SM-DP Address.
• Goto Settings -> Under Cellular/SIMs/Mobile Service -> tap Add eSIM -> Enter Details Manually.
  - Enter the SM-DP+ Address shown in your account.
  - Enter the Activation Code shown in your account.
• Tap Next in the top right and follow the prompts to continue the eSIM installation.
  

Additional NOTE:-

• Once the new Data Plan has been added, please make sure that Data Roaming is set to ON in your phone's Settings.
• Turn off Data Roaming on your Primary SIM card to prevent data roaming charges.
• Temporarily disable high data consuming/background syncing apps like iCloud Drive, Google Sync, or any other apps.
• If you install the eSIM before you arrive in your destination, be sure to change the eSIM plan to your primary Cellular Data plan when you arrive.
• Connecting to the Internet:- After successfully activating your eSIM, your device will begin searching for a signal immediately. In most cases, a data connection will be established immediately, and you will see 5G or