CLASS II ONGOING Device recall · Reported 1 Oct 2025 · FDA Enforcement Report

t:slim X2 Insulin Pump with Interoperable Technology recalled

Tandem Diabetes Care is recalling t:slim X2 Insulin Pump with Interoperable Technology (with Tandem t:slim mobile app). The recall was initiated on 3 Jul 2025 and the FDA has classified it as Class II.

Check your package

Lot, batch or date codesTandem 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]
Quantity recalled19

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

Recall details

Recall number
Z-2621-2025
FDA event ID
97264
Recalling firm
Tandem Diabetes Care, San Diego, CA
Classification
Class II
Status
Ongoing
Recall initiated
3 Jul 2025
FDA classified
24 Sep 2025
Reported
1 Oct 2025
Type
Voluntary: Firm initiated
Customers notified by
Letter
Reason category
Device Malfunction

Timeline

3 Jul 2025Recall initiated by company
24 Sep 2025Classified by FDA+83 days
1 Oct 2025Published in enforcement report+7 days

Companies usually start a recall weeks before the FDA classifies and publishes it; the gap above is that lag.

Reason for recall

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.

Device recalls are issued when a component, software or design fault could cause the device to fail or give wrong readings. Many are corrections applied in the field rather than physical returns.

Product as listed by the FDA

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

Where it was distributed

International distribution to the country of Israel.

Questions about this recall

Why was it recalled?

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.

Which lots are affected?

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]

Where was it sold?

International distribution to the country of Israel.

What should I do if I have it?

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

What does Class II mean?

Class II means the product may cause temporary or medically reversible health problems, or the probability of serious harm is remote.

Read the official FDA notice · Source record retrieved 26 Sep 2026. The FDA describes openFDA data as unvalidated; the official notice takes precedence. This page reports the record and gives no medical advice.

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