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Tandem carefully develops software updates to ensure your safety and satisfaction. Please review the instructions and take time to understand the new features before beginning your update.

What's Included

This update adds Basal-IQ® technology to your pump, which helps reduce the frequency and duration of low-glucose events by predicting glucose levels 30 minutes ahead and suspending insulin if they are expected to drop below 80 mg/dL. Insulin resumes as soon as sensor glucose values begin to rise.


t:slim X2 Insulin Pump with Basal-IQ Technology



Update Eligibility

You will need a prescription from your healthcare provider to take full advantage of this update.

This update requires a prescription and completion of online training before you can receive the unique Update ID Code needed to update your t:slim X2™ insulin pump. If you haven’t completed this process, you can get started here. If you completed the training process and did not receive your code or are unsure if your pump is eligible for this update, please call Customer Technical Support at (877) 801-6901 for assistance (available Monday through Friday from 6:00 AM to 5:00 PM Pacific Time).



Update Your Pump

Here are the three simple steps to update the software on your t:slim X2 insulin pump:


Before You Begin


Basal-IQ technology only works with the Dexcom G6* continuous glucose monitor (CGM). Your t:slim X2 insulin pump will no longer be compatible with Dexcom G5 Mobile CGM following this update. If you have G5 supplies you plan to use, we recommend postponing this update until you are ready to switch to the new Dexcom G6 CGM System.

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

  • You must have the Update ID Code emailed from Tandem Diabetes Care to proceed. If you did not receive an email from us, give us a call at (877) 801-6901.
  • A backup insulin delivery option, such as a syringe and fast-acting insulin, in case there are any issues updating your insulin pump.
  • Your blood glucose meter so that you can check your BG prior to starting the update.
  • A convenient time to stop all insulin delivery, detach your infusion set, and remove your cartridge. We recommend performing the update when you are ready to change your pump's cartridge.
  • A compatible computer with an internet connection. If you are using a laptop, make sure that it remains plugged in to a wall outlet during the half hour it will take to complete the software update.

Install Tandem Device Updater   Download >>


Update Your Device


The Tandem Device Updater should automatically start after you install it on your computer. Follow the prompts to update your t:slim X2 insulin pump.

If the 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, or contact Customer Support at (877) 801-6901. If you have trouble connecting your pump or starting an update, reference the Troubleshooting section of the Tandem Device Updater User Guide.



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Download Tandem Device Updater

The Tandem Device Updater is a software program that runs on your computer and allows you to update the software on your pump. If you’ve previously completed this installation, you can skip the download and open the Device Updater now.

Download for MAC

Download for PC




System Requirements

A computer and internet connection will be required to update your pump. Please take a minute to review the following technical requirements. In order to install Tandem’s device updater software, you will need administrator rights on your computer.

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Supported Operating Systems

  • Microsoft Windows 10 (64 bit)
  • Microsoft Windows 8.1 (64 bit)
  • Microsoft Windows 7 (32 or 64 bit)
  • Mac OS High Sierra (v10.13.x)
  • Mac OS Sierra (v10.12.x)
  • Mac OS X El Capitan (v10.11.x)†

Minimum Computer Requirements

  • 1 GB RAM
  • 1 GB of available disk space
  • x86 compatible 1.6 GHz processor
  • USB 1.1 port or later
  • Screen display capable of at least
    1024 by 768 pixels resolution


* Dexcom G6 CGM System sold separately. The Dexcom G6 CGM transmitter can only be paired with one medical device (either a Dexcom receiver or t:slim X2 pump) and one consumer device (phone or tablet) at the same time. CGM coverage may vary based on insurance. Please consult your CGM supplier for coverage info.
† Must include the OS x El Capitan 10.11.4 update, which improves stability, compatibility, and security of your Mac.