--- title: "Brand Name: Leica Biosystems Cryostats Product Name: CM1950 Model/Catalog Num... — FDA record Z-1247-2025 | Is It on Recall" description: "Firm became aware of software issues related to most recent firmware update which could result in loss of patient tissue." url: https://isitonrecall.com/recall/fda-device-z-1247-2025-brand-name-leica-biosystems-cryostats-product-name-cm1950-model-catalog-number-1491950c4us-software/ updated: 2026-10-01 site: "Is It on Recall" language: en --- [Recall archive](https://isitonrecall.com/archives/) / FDA device enforcement # Brand Name: Leica Biosystems Cryostats Product Name: CM1950 Model/Catalog Number: 1491950C4US Software Version: firmw... — FDA record Z-1247-2025 Reported ongoing Status as reported in the agency record. FDA warns that enforcement status may not track the current recall lifecycle; check the current official notice. Source date Jan 30, 2025. Retrieved Oct 1, 2026. Last updated Oct 1, 2026. Archive changed Oct 1, 2026. USDA FSIS records are unavailable; [check FSIS directly](https://www.fsis.usda.gov/recalls). [Source coverage and dates](https://isitonrecall.com/sources/). ## What the record says - **Product**: Brand Name: Leica Biosystems Cryostats Product Name: CM1950 Model/Catalog Number: 1491950C4US Software Version: firmware V3.01 - **Reason**: Firm became aware of software issues related to most recent firmware update which could result in loss of patient tissue. - **Classification**: Class II - **Recalling firm**: LEICA BIOSYSTEMS NUSSLOCH GMBH - **Quantity**: 2 - **Agency-reported status**: Ongoing - **Source record identifier**: Z-1247-2025 [Open the official record](https://api.fda.gov/device/enforcement.json?search=recall_number%3A%22Z-1247-2025%22) [What the recall classes mean](https://isitonrecall.com/guides/recall-classes/). Classification is an agency assessment, not individual medical advice. ## Lot and product identifiers | Label field | Details supplied by the agency | | --- | --- | | Lot, code or applicability | Model No: 1491950C4US UDI-DI: (01)04049188139030 Serial Numbers 12835, 12854 | Match all identifying details in the current notice. A brand name alone is not enough. ## Distribution Worldwide - US Nationwide distribution in the states of Idaho and Ohio. The countries of France, Australia, Belgium, China, Germany, Spain, UK, Hong Kong, Ireland, Italy, Japan, Netherlands, Norway, Poland, Singapore. States below are derived from the distribution text, including nationwide wording. They are not inferred from the firm's address. - [Alaska](https://isitonrecall.com/state/alaska/) - [Alabama](https://isitonrecall.com/state/alabama/) - [Arkansas](https://isitonrecall.com/state/arkansas/) - [Arizona](https://isitonrecall.com/state/arizona/) - [California](https://isitonrecall.com/state/california/) - [Colorado](https://isitonrecall.com/state/colorado/) - [Connecticut](https://isitonrecall.com/state/connecticut/) - [Delaware](https://isitonrecall.com/state/delaware/) - [Florida](https://isitonrecall.com/state/florida/) - [Georgia](https://isitonrecall.com/state/georgia/) - [Hawaii](https://isitonrecall.com/state/hawaii/) - [Iowa](https://isitonrecall.com/state/iowa/) - [Idaho](https://isitonrecall.com/state/idaho/) - [Illinois](https://isitonrecall.com/state/illinois/) - [Indiana](https://isitonrecall.com/state/indiana/) - [Kansas](https://isitonrecall.com/state/kansas/) - [Kentucky](https://isitonrecall.com/state/kentucky/) - [Louisiana](https://isitonrecall.com/state/louisiana/) - [Massachusetts](https://isitonrecall.com/state/massachusetts/) - [Maryland](https://isitonrecall.com/state/maryland/) - [Maine](https://isitonrecall.com/state/maine/) - [Michigan](https://isitonrecall.com/state/michigan/) - [Minnesota](https://isitonrecall.com/state/minnesota/) - [Missouri](https://isitonrecall.com/state/missouri/) - [Mississippi](https://isitonrecall.com/state/mississippi/) - [Montana](https://isitonrecall.com/state/montana/) - [North Carolina](https://isitonrecall.com/state/north-carolina/) - [North Dakota](https://isitonrecall.com/state/north-dakota/) - [Nebraska](https://isitonrecall.com/state/nebraska/) - [New Hampshire](https://isitonrecall.com/state/new-hampshire/) - [New Jersey](https://isitonrecall.com/state/new-jersey/) - [New Mexico](https://isitonrecall.com/state/new-mexico/) - [Nevada](https://isitonrecall.com/state/nevada/) - [New York](https://isitonrecall.com/state/new-york/) - [Ohio](https://isitonrecall.com/state/ohio/) - [Oklahoma](https://isitonrecall.com/state/oklahoma/) - [Oregon](https://isitonrecall.com/state/oregon/) - [Pennsylvania](https://isitonrecall.com/state/pennsylvania/) - [Rhode Island](https://isitonrecall.com/state/rhode-island/) - [South Carolina](https://isitonrecall.com/state/south-carolina/) - [South Dakota](https://isitonrecall.com/state/south-dakota/) - [Tennessee](https://isitonrecall.com/state/tennessee/) - [Texas](https://isitonrecall.com/state/texas/) - [Utah](https://isitonrecall.com/state/utah/) - [Virginia](https://isitonrecall.com/state/virginia/) - [Vermont](https://isitonrecall.com/state/vermont/) - [Washington](https://isitonrecall.com/state/washington/) - [Wisconsin](https://isitonrecall.com/state/wisconsin/) - [West Virginia](https://isitonrecall.com/state/west-virginia/) - [Wyoming](https://isitonrecall.com/state/wyoming/) ## Dates in the source - **Report date**: Mar 5, 2025 - **Recall initiation date**: Jan 30, 2025 - **Center classification date**: Feb 27, 2025 FDA company pages use the listing date; enforcement records use initiation dates; CPSC uses recall date; NHTSA uses report-received date. These dates are not interchangeable. ## What to do next Read the official notice for the action that applies to your exact product. [Read the current instructions](https://api.fda.gov/device/enforcement.json?search=recall_number%3A%22Z-1247-2025%22) ## Related records [Medical devices records](https://isitonrecall.com/category/medical-devices/) [LEICA BIOSYSTEMS NUSSLOCH GMBH records](https://isitonrecall.com/brand/leica-biosystems-nussloch-gmbh/)