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FDA Medical Device Recalls (openFDA)

Medtronic Inc.: Guardian Connect App CSS7200 iOS and Guardian Connect Transmitter GST4C used on the iPhone, iPad and iPod Touch devices.

Recall number
Z-2106-2020
Recalling firm
Medtronic Inc.
Product
Guardian Connect App CSS7200 iOS and Guardian Connect Transmitter GST4C used on the iPhone, iPad and iPod Touch devices.
Status
Open, Classified
Initiated
2019-05-20
Posted
not on file
Terminated
not on file
Reason
Customers using the firm's continuous glucose monitoring system application on an iPhone, iPad or iPod Touch with ios software version 12, 12.1, or 12,2 are likely to experience a shortened transmitter battery life (approximately 4-5 days instead of the normal 7 days or more) after a full charge.
Root cause
Software design
Action
Urgent Medical Device Safety Notification Letters were sent to patients, health care providers (HCPs), distributors and clinical via email beginning on May 20, 2019 and via USPS certified mail beginning on May 22, 2019 notifying them of a potential issue with the transmitter battery life of the Connect Continuous Glucose Monitoring System. Customers using an Apple device with iOS version 12 or higher were advised to update to the latest version (3.2.4) of the Guardian Connect app on their iPhone as soon as possible. Customers not using iOS 12 or higher were encouraged to update to the latest version of the Guardian Connect app. Customers receiving emails were requested to submit email acknowledgements indicating they have read and understood the instructions provided in the Urgent Safety Notice Letter clicking on the button as evidence of receipt. Customers receiving paper-copy notifications were instructed to fill out a response card indicating they had read and understood the notice, and mail the card back with a pre-paid envelope. Customers with invalid email and/or physical addresses will be contacted by telephone. Customers with questions were encouraged to contact 24-Hour Technical Support Team at 1-800-646-4633.
Quantity
23,978
Distribution
US Nationwide distribution.
Lot, serial or model codes
Model Number CSS7200 (Guardian Connect App: iOS); Catalog Numbers: MMT-7821 (Guardian Connect Transmitter - GST4C); UPN - 00763000186333.  There are no assigned lot or serial numbers.
510(k) numbers
not on file
PMA numbers
["P160007"]
Product code
MDS
Firm FEI
3003166194
Firm city
Northridge
Firm state
CA
Firm country
not on file

Where this comes from

Register
FDA Medical Device Recalls (openFDA)
Publisher
U.S. Food and Drug Administration (openFDA)
File
device-recall-0001-of-0001.json.zip
sha256
b87518bfe2e8
Size
288210821 bytes
Published
2026-09-28
Read
2026-09-29T08:25:23.626Z
Source file
Source file retained · verify
Refresh due
2026-10-06

Unless otherwise noted, the content, data, documentation, code, and related materials on openFDA is public domain and made available with a Creative Commons CC0 1.0 Universal dedication.

Cite as

FDA Medical Device Recalls (openFDA) (U.S. Food and Drug Administration (openFDA)), device-recall-0001-of-0001.json.zip, sha256 b87518bfe2e8, published 2026-09-28

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