Troubleshooting CareLink Upload Issues on Mac


We will be ending support for Tidepool Uploader 1.x (the Chrome App version) and CareLink integration later this year. Medtronic 523, 530G, and 723 insulin pumps can now be uploaded directly to Tidepool using a Bayer Contour Next Link Meter.
Please go to to download the latest version of the Tidepool Uploader.

This article details uploading Medtronic 523, 530G, 723 insulin pump data directly to Tidepool.

We currently support some Medtronic pumps and blood glucose monitors that are uploaded through CareLink. 

Click here to see a list of all supported devices. 

CareLink is a site that is heavily dependent upon Java and this can sometimes make it challenging to upload your data to CareLink. This article will show you how to solve Java issues and circumvent required browser version restrictions so that you can upload your data. 

1. What do I need to upload to CareLink? 

Devices to communicate with Minimed Pumps:

We recommend using a  Bayer Contour Next Link meter, which is compatible with USB 1.0, 2.0, and 3.0. 

This meter is able to communicate wirelessly with most Minimed insulin pumps and is itself a great meter. 

You can also use a beige CareLink USB stick. Please note that this is not directly compatible with USB 3.0 ports. If you have this device, you can use a USB Hub to connect to USB 3.0 ports on your computer. 

 2. How to upload to CareLink with Safari

A. Fixing Java Security issues 

This is what you will do if you are receiving warnings about Java, but you are on a supported version of Safari.

If you do not have Java installed, you can install it from: 

In Safari, navigate to the Internet Plug-in Settings: Safari -> Preferences -> Security -> Internet Plug-in Settings...

Select Java, then choose "Allow Always" for 

If it warns you that Java is now set to run in "unsafe mode," this is to be expected and is the desired result. 

Now, restart your browser and navigate to CareLink once again to see if it will let you in. Please note, it may still show the page that indicates that you do not have the ideal settings for Carelink, but if it has a button allowing you to "Continue" please click it. 

B. Fixing Java Plug-in Warnings

If Step 2 did not fix the Java warnings, then please proceed to this step.

Choose Java from within System Preferences. You can open System Preferences using Spotlight (Command + Spacebar and then type "System Preferences"):

When the Java Control Panel opens, select the "Security" tab. Then, select "Edit Site List."


At this point, you should be able to upload to CareLink. If you are not able to, please try restarting your computer and attempting the upload again. 

Please reach out to if you have any questions or feedback on this article. Please include the article title if you are submitting feedback to make it easier for us to identify what changes need to be made.

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