Basal-IQ Technology

Software Updates

Please review the information and instructions below so you understand the new features before you update.

What is Included

This update adds Basal-IQ technology to your t:slim X2 insulin pump, which helps protect against lows by using Dexcom G6 continuous glucose monitoring (CGM)* values to predict glucose levels 30 minutes ahead and suspending insulin if they are expected to drop below 4.4 mmol/L.

Before You Begin

This update requires completion of online training, which must be initiated through your account in order to receive the Update ID Number needed to update your pump software. If you have not yet requested your update, visit your account to begin the process.

Basal-IQ Technology with Dexcom G6 CGM

Confirm your eligibility to request a software update!

Three Simple Steps to Update


Get Ready to Update

You must have completed the initial pump training process mentioned above and have received your Update ID Number to proceed.

Please consult the Tandem Device Updater User Guide and have the following:

  • A convenient time to stop all insulin delivery, detach your infusion set, and remove your cartridge. This update will take 15 to 30 minutes.
  • Your unique Update ID Number, which you should receive once we have received your prescription (if required) and you've completed your online training.
  • The pump serial number
  • Compatible computer with an internet connection (ethernet is preferred)
  • A backup insulin delivery option, such as a syringe and long-acting insulin, in case there are any issues updating your pump
  • Your blood glucose (BG) meter so that you can check your BG prior to starting the software update
  • Supplies to change your cartridge. We recommend performing the update when you are ready for a new cartridge.

Note: Basal-IQ technology only works with the Dexcom G6 CGM. If you are still using Dexcom G5 Mobile CGM and have Dexcom G5 supplies you plan to use, we recommend postponing this update until you are ready to switch to the new Dexcom G6 system. If you are already using Dexcom G6 CGM and have an active sensor session when you update your pump, you will need to start the session again on your pump after the update is complete. The update process will NOT stop the sensor session, and you will not need to re-enter your transmitter ID. When your pump asks if you have a sensor code, tap SKIP. Your pump should backfill any data missed during the update. You can continue to view your Dexcom G6 CGM data on the Dexcom mobile app during the update process.


Download the Tandem Device Updater

Download and install the Tandem Device Updater using the links below to ensure you are using the latest version. If you have already downloaded the application in the past, you may have an older version installed and will need to install it again.

The Tandem Device Updater should automatically start once installation is complete. However, please read the next article to make sure you are ready to start the update process within the Tandem Device Updater application.


Update Your Pump

Follow the prompts to update your t:slim X2 insulin pump. The process should take less than 10 minutes to complete.

Note: If the Tandem Device Updater encounters a condition that will not allow you to continue, you will see an error message on your computer screen. Follow the on-screen instructions to resolve the error and continue with your update. If you are unable to continue with your update, contact Customer Support at (833) 509-3598. Reference the Troubleshooting section of the Tandem Device Updater User Guide, if you have trouble connecting your pump or starting an update.


Tandem Device Updater

This application runs on your computer and allows you to update the software on your insulin pump. If this application is already installed on your computer, you may still need to download again to ensure you have the current version.