Tandem Diabetes Care, Inc.: t:slim X2 Insulin Pump with Interoperable Technology (with Tandem t:slim mobile app)

Recall number

Z-2621-2025

Recalling firm

Tandem Diabetes Care, Inc.

Product

t:slim X2 Insulin Pump with Interoperable Technology (with Tandem t:slim mobile app)

Status

Open, Classified

Initiated

2025-07-03

Posted

2025-09-24

Terminated

not on file

Reason

an app defect that occurs when the phone is set to a right-to-left language, which causes app-pump pairing issues and graphical defects, which can potentially lead to incorrect therapy decisions and subsequent hypoglycemia or hyperglycemia.

Root cause

Software design

Action

On 07/03/2025, the firm sent an "URGENT FIELD SAFETY NOTICE" it distributor to notify customers that users operating an Android phone with language setting set as Hebrew may experience a blank screen on the mobile application during the initial pairing sequence. The language setting must be set to English for the pairing sequence to work successfully. However, if users set their language back to a right-to-left language after pairing, or do not encounter the initial issue, the mobile application will display discrepancies. This discrepancy may cause a user to make incorrect therapy decisions that may result in under-delivery or over-delivery of insulin. Customers are instructed to: If you are operating the Tandem t:slim mobile app version 2.9.1 on an Android smartphone, and your device language is set to a right-to-left language, please revert your phone language setting to English. You can do this by navigating to the Settings app on your device. If you are unable to or do not want to change your phone language to English, Tandem recommends not to use the Android Tandem t:slim mobile app version 2.9.1 until a future update addresses this issue. Additional Recommended Best Practices: 1. Continue using your Tandem pump as described in the User Guide. 2. Regularly check your blood sugar to ensure you are not having unexpectedly high or low readings. 3. Pay attention to all system alerts and alarms. 4. Always carry back-up supplies. For questions or assistance - Additional information of this Field Safety Notice is available by contacting Padagis at Inbal.hadasheli@padagis.com.

Quantity

19

Distribution

International distribution to the country of Israel.

Lot, serial or model codes

Tandem t:slim Mobile App, Android Software Version 2.9.1 UDI-DI code: 00389152470641 Serial Numbers / Cell Phone OS: 1163923 Google Pixel 8 Pro husky [15 35] 1164430 samsung SM-S901E r0qxxx [15 35] 1167131 samsung SM-A346E a34xdxx [14 34] 1299238 samsung SM-G780G r8qxx [13 33] 1300180 samsung SM-S928B e3qxxx [15 35] 1300180 samsung SM-S928B e3qxxx [14 34] 1329242 Google Pixel 6 Pro raven [15 35] 1381313 samsung SM-G780G r8qxx [13 33] 1381315 Google Pixel 9 tokay [16 36] 1381537 samsung SM-A546E a54xnsxx [14 34] 1381570 Xiaomi 2407FPN8EG rothko_global [15 35] 1391808 samsung SM-S711B r11sxxx [14 34] 1391892 samsung SM-N980F c1sxx [13 33] 1392863 samsung SM-S926B e2sxxx [15 35] 1392953 samsung SM-S916B dm2qxxx [15 35] 1393040 samsung SM-S901E r0qxxx [15 35] 90615975 realme RMX3241 RMX3241 [13 33] 90754587 samsung SM-S916B dm2qxxx [15 35] 901144584 samsung SM-S901E r0qxxx [14 34]

510(k) numbers

["K232380"]

PMA numbers

not on file

Product code

QFG

Firm FEI

3007981285

Firm city

San Diego

Firm state

CA

Firm country

not on file

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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