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All Downloads

PATCHED FIRMWARE

Current fixed releases

These releases correct future seed generation. Existing affected seeds still require migration unless the advisory's independent-dice exception applies. Check status and evidence.

Date Size (bytes) Platform Version Filename Description
2026-08-20 1,024,309 Mk 5.6.1 [current fixed release] 2026-08-20T1336-v5.6.1-mk-coldcard.dfu Latest version for COLDCARD Mk5 and Mk4
2026-08-20 1,139,005 Mk 5.6.1 [fixed] 2026-08-20T1336-v5.6.1-mk-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2026-07-31 1,007,925 Mk 5.6.0 [fixed] 2026-07-31T0518-v5.6.0-mk-coldcard.dfu
2026-07-31 1,122,621 Mk 5.6.0 [fixed] 2026-07-31T0518-v5.6.0-mk-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2026-07-01 1,007,925 Mk 5.5.1 [vulnerable] 2026-07-01T1729-v5.5.1-mk-coldcard.dfu
2026-07-01 1,122,621 Mk 5.5.1 [vulnerable] 2026-07-01T1729-v5.5.1-mk-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2026-03-05 1,003,829 Mk 5.5.0 [vulnerable] 2026-03-05T2052-v5.5.0-mk-coldcard.dfu
2026-03-05 1,118,525 Mk 5.5.0 [vulnerable] 2026-03-05T2052-v5.5.0-mk-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2025-11-03 987,445 Mk4 5.4.5 [vulnerable] 2025-11-03T1527-v5.4.5-mk4-coldcard.dfu Latest version for COLDCARD Mk4
2025-11-03 1,102,141 Mk4 5.4.5 [vulnerable] 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 5.4.4 [vulnerable] 2025-09-30T1238-v5.4.4-mk4-coldcard.dfu
2025-09-30 1,102,141 Mk4 5.4.4 [vulnerable] 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 5.4.3 [vulnerable] 2025-05-14T1344-v5.4.3-mk4-coldcard.dfu
2025-05-14 1,085,757 Mk4 5.4.3 [vulnerable] 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 5.4.2 [vulnerable] 2025-04-16T1907-v5.4.2-mk4-coldcard.dfu
2025-04-16 1,085,757 Mk4 5.4.2 [vulnerable] 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 5.4.1 [vulnerable] 2025-02-13T1415-v5.4.1-mk4-coldcard.dfu
2025-02-13 1,061,181 Mk4 5.4.1 [vulnerable] 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 5.4.0 [vulnerable] 2024-09-12T1734-v5.4.0-mk4-coldcard.dfu
2024-09-12 1,057,085 Mk4 5.4.0 [vulnerable] 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 5.3.3 [vulnerable] 2024-07-05T1348-v5.3.3-mk4-coldcard.dfu
2024-07-05 1,057,085 Mk4 5.3.3 [vulnerable] 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 5.3.2 [vulnerable] 2024-06-26T1741-v5.3.2-mk4-coldcard.dfu
2024-06-26 1,057,085 Mk4 5.3.2 [vulnerable] 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 5.3.1 [vulnerable] 2024-05-09T1527-v5.3.1-mk4-coldcard.dfu
2024-05-09 1,048,893 Mk4 5.3.1 [vulnerable] 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 5.3.0 [vulnerable] 2024-05-06T1811-v5.3.0-mk4-coldcard.dfu
2024-05-06 1,048,893 Mk4 5.3.0 [vulnerable] 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 5.2.2 [vulnerable] 2023-12-21T1526-v5.2.2-mk4-coldcard.dfu
2023-12-21 1,020,221 Mk4 5.2.2 [vulnerable] 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 5.2.1 [vulnerable] 2023-12-19T1444-v5.2.1-mk4-coldcard.dfu
2023-12-19 1,020,221 Mk4 5.2.1 [vulnerable] 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 5.2.0 [vulnerable] 2023-10-10T1735-v5.2.0-mk4-coldcard.dfu
2023-10-10 1,016,125 Mk4 5.2.0 [vulnerable] 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 5.1.4 [vulnerable] 2023-09-08T2009-v5.1.4-mk4-coldcard.dfu
2023-09-08 1,007,933 Mk4 5.1.4 [vulnerable] 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 5.1.3 [vulnerable] 2023-09-07T1501-v5.1.3-mk4-coldcard.dfu
2023-09-07 1,005,885 Mk4 5.1.3 [vulnerable] 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 5.1.2 [vulnerable] 2023-04-07T1330-v5.1.2-mk4-coldcard.dfu
2023-04-07 1,007,933 Mk4 5.1.2 [vulnerable] 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 5.1.1 [vulnerable] 2023-02-27T2105-v5.1.1-mk4-coldcard.dfu
2023-02-27 1,005,885 Mk4 5.1.1 [vulnerable] 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 5.1.0 [vulnerable] 2023-02-27T1509-v5.1.0-mk4-coldcard.dfu
2022-10-05 985,405 Mk4 5.0.7 [vulnerable] 2022-10-05T1724-v5.0.7-mk4-coldcard.dfu
2022-07-29 973,629 Mk4 5.0.6 [vulnerable] 2022-07-29T1816-v5.0.6-mk4-coldcard.dfu
2022-07-20 973,629 Mk4 5.0.5 [vulnerable] 2022-07-20T1508-v5.0.5-mk4-coldcard.dfu
2022-05-27 962,877 Mk4 5.0.4 [vulnerable] 2022-05-27T1500-v5.0.4-mk4-coldcard.dfu
2022-05-04 962,365 Mk4 5.0.3 [vulnerable] 2022-05-04T1252-v5.0.3-mk4-coldcard.dfu
2022-04-19 962,365 Mk4 5.0.2 [vulnerable] 2022-04-19T1805-v5.0.2-mk4-coldcard.dfu
2022-03-24 958,269 Mk4 5.0.1 [vulnerable] 2022-03-24T1643-v5.0.1-mk4-coldcard.dfu
2022-03-21 958,781 Mk4 5.0.0 [vulnerable] 2022-03-14T1907-v5.0.0-mk4-coldcard.dfu
2026-08-20 1,089,845 Q 1.5.1Q [current fixed release] 2026-08-20T1335-v1.5.1Q-q1-coldcard.dfu Latest version for COLDCARD Q
2026-08-20 1,204,541 Q 1.5.1Q [fixed] 2026-08-20T1335-v1.5.1Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2026-07-31 1,073,461 Q 1.5.0Q [fixed] 2026-07-31T0517-v1.5.0Q-q1-coldcard.dfu
2026-07-31 1,188,157 Q 1.5.0Q [fixed] 2026-07-31T0517-v1.5.0Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2026-07-01 1,073,461 Q 1.4.1Q [vulnerable] 2026-07-01T1727-v1.4.1Q-q1-coldcard.dfu
2026-07-01 1,188,157 Q 1.4.1Q [vulnerable] 2026-07-01T1727-v1.4.1Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2026-03-05 1,073,461 Q 1.4.0Q [vulnerable] 2026-03-05T2051-v1.4.0Q-q1-coldcard.dfu
2026-03-05 1,188,157 Q 1.4.0Q [vulnerable] 2026-03-05T2051-v1.4.0Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2025-11-03 1,057,077 Q 1.3.5Q [vulnerable] 2025-11-03T1525-v1.3.5Q-q1-coldcard.dfu
2025-11-03 1,171,773 Q 1.3.5Q [vulnerable] 2025-11-03T1525-v1.3.5Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2025-09-30 1,057,077 Q 1.3.4Q [vulnerable] 2025-09-30T1237-v1.3.4Q-q1-coldcard.dfu
2025-09-30 1,171,773 Q 1.3.4Q [vulnerable] 2025-09-30T1237-v1.3.4Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2025-05-14 1,040,693 Q 1.3.3Q [vulnerable] 2025-05-14T1343-v1.3.3Q-q1-coldcard.dfu
2025-05-14 1,155,389 Q 1.3.3Q [vulnerable] 2025-05-14T1343-v1.3.3Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2025-04-16 1,036,597 Q 1.3.2Q [vulnerable] 2025-04-16T1906-v1.3.2Q-q1-coldcard.dfu
2025-04-16 1,151,293 Q 1.3.2Q [vulnerable] 2025-04-16T1906-v1.3.2Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2025-02-13 1,003,829 Q 1.3.1Q [vulnerable] 2025-02-13T1413-v1.3.1Q-q1-coldcard.dfu
2025-02-13 1,118,525 Q 1.3.1Q [vulnerable] 2025-02-13T1413-v1.3.1Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-09-12 999,733 Q 1.3.0Q [vulnerable] 2024-09-12T1733-v1.3.0Q-q1-coldcard.dfu
2024-09-12 1,114,429 Q 1.3.0Q [vulnerable] 2024-09-12T1733-v1.3.0Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-07-05 995,637 Q 1.2.3Q [vulnerable] 2024-07-05T1342-v1.2.3Q-q1-coldcard.dfu
2024-07-05 1,110,333 Q 1.2.3Q [vulnerable] 2024-07-05T1342-v1.2.3Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-06-26 995,637 Q 1.2.2Q [vulnerable] 2024-06-26T1739-v1.2.2Q-q1-coldcard.dfu
2024-06-26 1,110,333 Q 1.2.2Q [vulnerable] 2024-06-26T1739-v1.2.2Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-05-09 991,541 Q 1.2.1Q [vulnerable] 2024-05-09T1529-v1.2.1Q-q1-coldcard.dfu
2024-05-09 1,106,237 Q 1.2.1Q [vulnerable] 2024-05-09T1529-v1.2.1Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-05-06 987,445 Q 1.2.0Q [vulnerable] 2024-05-06T1812-v1.2.0Q-q1-coldcard.dfu
2024-05-06 1,102,141 Q 1.2.0Q [vulnerable] 2024-05-06T1812-v1.2.0Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-04-02 991,541 Q 1.1.0Q [vulnerable] 2024-04-02T1416-v1.1.0Q-q1-coldcard.dfu
2024-04-02 1,106,237 Q 1.1.0Q [vulnerable] 2024-04-02T1416-v1.1.0Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-03-14 979,253 Q 1.0.1Q [vulnerable] 2024-03-14T1419-v1.0.1Q-q1-coldcard.dfu
2024-03-14 1,093,949 Q 1.0.1Q [vulnerable] 2024-03-14T1419-v1.0.1Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-03-10 979,253 Q 1.0.0Q [vulnerable] 2024-03-10T1537-v1.0.0Q-q1-coldcard.dfu
2024-03-10 1,093,949 Q 1.0.0Q [vulnerable] 2024-03-10T1537-v1.0.0Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-03-02 979,253 Q 0.0.8Q [vulnerable] 2024-03-02T1750-v0.0.8Q-q1-coldcard.dfu
2024-03-02 1,093,949 Q 0.0.8Q [vulnerable] 2024-03-02T1750-v0.0.8Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-02-26 979,253 Q 0.0.7Q [vulnerable] 2024-02-26T1442-v0.0.7Q-q1-coldcard.dfu
2024-02-26 1,093,949 Q 0.0.7Q [vulnerable] 2024-02-26T1442-v0.0.7Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-02-22 979,253 Q 0.0.6Q [vulnerable] 2024-02-22T1423-v0.0.6Q-q1-coldcard.dfu
2024-02-22 1,093,949 Q 0.0.6Q [vulnerable] 2024-02-22T1423-v0.0.6Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-02-16 979,253 Q 0.0.5Q [vulnerable] 2024-02-16T1635-v0.0.5Q-q1-coldcard.dfu
2024-02-16 1,093,949 Q 0.0.5Q [vulnerable] 2024-02-16T1635-v0.0.5Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-02-15 979,253 Q 0.0.4Q [vulnerable] 2024-02-15T1843-v0.0.4Q-q1-coldcard.dfu
2024-02-15 1,093,949 Q 0.0.4Q [vulnerable] 2024-02-15T1843-v0.0.4Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2024-02-08 975,157 Q 0.0.3Q [vulnerable] 2024-02-08T2005-v0.0.3Q-q1-coldcard.dfu
2024-02-08 1,089,853 Q 0.0.3Q [vulnerable] 2024-02-08T2005-v0.0.3Q-q1-coldcard-factory.dfu Includes BOOTROM needed only by CK factory – reference only.
2026-07-31 760,637 Mk3 4.2.0 [current fixed release] 2026-07-31T1248-v4.2.0-coldcard.dfu Final release for Mk3 and Mk2 COLDCARD
2023-06-26 760,637 Mk3 4.1.9 [vulnerable] 2023-06-26T1241-v4.1.9-coldcard.dfu
2023-06-19 753,981 Mk3 4.1.8 [vulnerable] 2023-06-19T1627-v4.1.8-coldcard.dfu
2022-11-14 760,637 Mk3 4.1.7 [vulnerable] 2022-11-14T1854-v4.1.7-coldcard.dfu
2022-10-05 760,125 Mk3 4.1.6 [vulnerable] 2022-10-05T1517-v4.1.6-coldcard.dfu
2022-05-04 759,101 Mk3 4.1.5 [vulnerable] 2022-05-04T1258-v4.1.5-coldcard.dfu
2022-04-25 759,101 Mk3 4.1.4 [vulnerable] 2022-04-25T1618-v4.1.4-coldcard.dfu
2021-09-02 758,077 Mk3 4.1.3 [vulnerable] 2021-09-02T1752-v4.1.3-coldcard.dfu
2021-07-28 757,053 Mk3 4.1.2 [vulnerable] 2021-07-28T1347-v4.1.2-coldcard.dfu
2021-04-07 748,349 Mk3 4.0.2 [vulnerable] 2021-04-07T1424-v4.0.2-coldcard.dfu
2021-03-29 744,765 Mk3 4.0.1 [vulnerable] 2021-03-29T1927-v4.0.1-coldcard.dfu
2021-01-14 816,957 Mk3 3.2.2 [fixed] 2021-01-14T1617-v3.2.2-coldcard.dfu
2021-01-07 812,349 Mk3 3.2.1 [fixed] 2021-01-07T1439-v3.2.1-coldcard.dfu
2019-12-19 794,941 Mk1 3.0.6 [fixed] 2019-12-19T1623-v3.0.6-coldcard.dfu Final release for Mk1 COLDCARD
2026-08-31 1,110,325 Mk 6.6.1X [current fixed release] 2026-08-31T1606-v6.6.1X-mk-coldcard.dfu EDGE version for COLDCARD Mk5 and Mk4
2026-08-31 1,175,861 Q 6.6.1QX [current fixed release] 2026-08-31T1604-v6.6.1QX-q1-coldcard.dfu EDGE version for COLDCARD Q
2026-07-31 1,085,749 Mk 6.6.0X [fixed] 2026-07-31T1608-v6.6.0X-mk-coldcard.dfu
2026-07-31 1,151,285 Q 6.6.0QX [fixed] 2026-07-31T1605-v6.6.0QX-q1-coldcard.dfu
2026-03-25 1,085,749 Mk 6.5.0X [vulnerable] 2026-03-25T1408-v6.5.0X-mk-coldcard.dfu
2026-03-25 1,155,381 Q 6.5.0QX [vulnerable] 2026-03-25T1407-v6.5.0QX-q1-coldcard.dfu
2025-11-25 1,044,789 Mk4 6.4.1X [vulnerable] 2025-11-25T1618-v6.4.1X-mk4-coldcard.dfu EDGE version for COLDCARD Mk4
2025-11-25 1,114,421 Q 6.4.1QX [vulnerable] 2025-11-25T1617-v6.4.1QX-q1-coldcard.dfu
2025-11-20 1,044,789 Mk4 6.4.0X [vulnerable] 2025-11-20T1602-v6.4.0X-mk4-coldcard.dfu
2025-02-19 1,024,309 Mk4 6.3.5X [vulnerable] 2025-02-19T1941-v6.3.5X-mk4-coldcard.dfu
2025-02-19 1,081,653 Q 6.3.5QX [vulnerable] 2025-02-19T1939-v6.3.5QX-q1-coldcard.dfu
2024-12-18 1,020,213 Mk4 6.3.4X [vulnerable] 2024-12-18T1413-v6.3.4X-mk4-coldcard.dfu
2024-12-18 1,077,557 Q 6.3.4QX [vulnerable] 2024-12-18T1407-v6.3.4QX-q1-coldcard.dfu
2024-07-04 1,016,117 Mk4 6.3.3X [vulnerable] 2024-07-04T1501-v6.3.3X-mk4-coldcard.dfu
2024-07-04 1,069,365 Q 6.3.3QX [vulnerable] 2024-07-04T1459-v6.3.3QX-q1-coldcard.dfu
2024-01-19 991,541 Mk4 6.2.2X [vulnerable] 2024-01-18T1507-v6.2.2X-mk4-coldcard.dfu
2023-10-26 983,349 Mk4 6.2.1X [vulnerable] 2023-10-26T1343-v6.2.1X-mk4-coldcard.dfu
2023-06-20 973,621 Mk4 6.1.0X [vulnerable] 2023-06-20T1506-v6.1.0X-mk4-coldcard.dfu
2023-05-12 934,197 Mk4 6.0.0X [vulnerable] 2023-05-12T1316-v6.0.0X-mk4-coldcard.dfu
2026-08-25 4,588,976 Mk/Q 2026-08-25 cc-recovery-2026-08-25.img.xz Special recovery disk image for Mk/Q (rarely used)
2026-03-26 3,966,672 Mk/Q 2026-03-26 cc-recovery-2026-03-26.img.xz
2025-11-03 3,576,828 Mk/Q 2025-11-03 cc-recovery-2025-11-03.img.xz
2025-09-30 3,503,956 Mk/Q 2025-09-30 cc-recovery-2025-09-30.img.xz
2025-05-14 3,261,300 Mk/Q 2025-05-14 cc-recovery-2025-05-14.img.xz
2025-04-17 3,254,224 Mk/Q 2025-04-17 cc-recovery-2025-04-17.img.xz
2025-02-13 2,461,220 Mk/Q 2025-02-13 cc-recovery-2025-02-13.img.xz
2024-09-12 2,461,296 Mk/Q 2024-09-12 cc-recovery-2024-09-12.img.xz
2024-07-05 2,462,288 Mk/Q 2024-07-05 cc-recovery-2024-07-05.img.xz
2024-06-26 2,202,364 Mk/Q 2024-06-26 cc-recovery-2024-06-26.img.xz
2024-05-06 2,012,808 Mk/Q 2024-05-06 cc-recovery-2024-05-06.img.xz
2023-10-11 1,229,012 Mk/Q 2023-10-11 mk4-recovery-2023-10-11.img.xz
2023-02-27 935,840 Mk/Q 2023-02-27 mk4-recovery-2023-02-27.img.xz
2022-10-05 831,916 Mk/Q 2022-10-05 mk4-recovery-2022-10-05.img.xz
2022-07-29 735,208 Mk/Q 2022-07-29 mk4-recovery-2022-07-29.img.xz