ShopCOLDCARD Mk4 Downloads
Warning: Your Mk4 can run any Mk5 release firmware image, so you probably don't want any of these historical files!
| Date | Size (bytes) | Platform | Version | Filename | Description |
|---|---|---|---|---|---|
| 2025-11-03 | 987,445 | Mk4 | 2025-11-03T1527-v5.4.5-mk4-coldcard.dfu | Latest version for COLDCARD Mk4 | |
| 2025-11-03 | 1,102,141 | Mk4 | 2025-11-03T1527-v5.4.5-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2025-09-30 | 987,445 | Mk4 | 2025-09-30T1238-v5.4.4-mk4-coldcard.dfu | ||
| 2025-09-30 | 1,102,141 | Mk4 | 2025-09-30T1238-v5.4.4-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2025-05-14 | 971,061 | Mk4 | 2025-05-14T1344-v5.4.3-mk4-coldcard.dfu | ||
| 2025-05-14 | 1,085,757 | Mk4 | 2025-05-14T1344-v5.4.3-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2025-04-16 | 971,061 | Mk4 | 2025-04-16T1907-v5.4.2-mk4-coldcard.dfu | ||
| 2025-04-16 | 1,085,757 | Mk4 | 2025-04-16T1907-v5.4.2-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2025-02-13 | 946,485 | Mk4 | 2025-02-13T1415-v5.4.1-mk4-coldcard.dfu | ||
| 2025-02-13 | 1,061,181 | Mk4 | 2025-02-13T1415-v5.4.1-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2024-09-12 | 942,389 | Mk4 | 2024-09-12T1734-v5.4.0-mk4-coldcard.dfu | ||
| 2024-09-12 | 1,057,085 | Mk4 | 2024-09-12T1734-v5.4.0-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2024-07-05 | 942,389 | Mk4 | 2024-07-05T1348-v5.3.3-mk4-coldcard.dfu | ||
| 2024-07-05 | 1,057,085 | Mk4 | 2024-07-05T1348-v5.3.3-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2024-06-26 | 942,389 | Mk4 | 2024-06-26T1741-v5.3.2-mk4-coldcard.dfu | ||
| 2024-06-26 | 1,057,085 | Mk4 | 2024-06-26T1741-v5.3.2-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2024-05-09 | 934,197 | Mk4 | 2024-05-09T1527-v5.3.1-mk4-coldcard.dfu | ||
| 2024-05-09 | 1,048,893 | Mk4 | 2024-05-09T1527-v5.3.1-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2024-05-06 | 934,197 | Mk4 | 2024-05-06T1811-v5.3.0-mk4-coldcard.dfu | ||
| 2024-05-06 | 1,048,893 | Mk4 | 2024-05-06T1811-v5.3.0-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2023-12-21 | 905,525 | Mk4 | 2023-12-21T1526-v5.2.2-mk4-coldcard.dfu | ||
| 2023-12-21 | 1,020,221 | Mk4 | 2023-12-21T1526-v5.2.2-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2023-12-19 | 905,525 | Mk4 | 2023-12-19T1444-v5.2.1-mk4-coldcard.dfu | ||
| 2023-12-19 | 1,020,221 | Mk4 | 2023-12-19T1444-v5.2.1-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2023-10-10 | 901,429 | Mk4 | 2023-10-10T1735-v5.2.0-mk4-coldcard.dfu | ||
| 2023-10-10 | 1,016,125 | Mk4 | 2023-10-10T1735-v5.2.0-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2023-09-08 | 893,237 | Mk4 | 2023-09-08T2009-v5.1.4-mk4-coldcard.dfu | ||
| 2023-09-08 | 1,007,933 | Mk4 | 2023-09-08T2009-v5.1.4-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2023-09-07 | 891,189 | Mk4 | 2023-09-07T1501-v5.1.3-mk4-coldcard.dfu | ||
| 2023-09-07 | 1,005,885 | Mk4 | 2023-09-07T1501-v5.1.3-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2023-04-07 | 893,237 | Mk4 | 2023-04-07T1330-v5.1.2-mk4-coldcard.dfu | ||
| 2023-04-07 | 1,007,933 | Mk4 | 2023-04-07T1330-v5.1.2-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2023-02-27 | 891,189 | Mk4 | 2023-02-27T2105-v5.1.1-mk4-coldcard.dfu | ||
| 2023-02-27 | 1,005,885 | Mk4 | 2023-02-27T2105-v5.1.1-mk4-coldcard-factory.dfu | Includes BOOTROM needed only by CK factory – reference only. | |
| 2023-02-27 | 1,005,885 | Mk4 | 2023-02-27T1509-v5.1.0-mk4-coldcard.dfu | ||
| 2022-10-05 | 985,405 | Mk4 | 2022-10-05T1724-v5.0.7-mk4-coldcard.dfu | ||
| 2022-07-29 | 973,629 | Mk4 | 2022-07-29T1816-v5.0.6-mk4-coldcard.dfu | ||
| 2022-07-20 | 973,629 | Mk4 | 2022-07-20T1508-v5.0.5-mk4-coldcard.dfu | ||
| 2022-05-27 | 962,877 | Mk4 | 2022-05-27T1500-v5.0.4-mk4-coldcard.dfu | ||
| 2022-05-04 | 962,365 | Mk4 | 2022-05-04T1252-v5.0.3-mk4-coldcard.dfu | ||
| 2022-04-19 | 962,365 | Mk4 | 2022-04-19T1805-v5.0.2-mk4-coldcard.dfu | ||
| 2022-03-24 | 958,269 | Mk4 | 2022-03-24T1643-v5.0.1-mk4-coldcard.dfu | ||
| 2022-03-21 | 958,781 | Mk4 | 2022-03-14T1907-v5.0.0-mk4-coldcard.dfu |