macOS 27.0.1 (26A434) for iMac 24-inch (M1, Four Ports, 2021)
Currently signed — installable
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Jailbreak compatibility
No jailbreak
There is no public jailbreak for macOS 27.0.1 on iMac 24-inch (M1, Four Ports, 2021).
Tip: Beware of sites that charge for a jailbreak or ask you to install a profile. Real jailbreaks are always free and open source.
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Firmware information
Version
27.0.1
Build ID
26A434
Release date
Sep 28, 2026
Upload date
Sep 24, 2026
File name
UniversalMac_27.0.1_26A434_Restore.ipsw
File size
24.81 GB
MD5
4b8c55bbeefa2aebe3a112f89822ecc4
SHA1
7e020710acade1911309aa73901ed5a92790bafc
Device information
Device
iMac 24-inch (M1, Four Ports, 2021)
Identifier
iMac21,2
BoardConfig
J457AP
Platform
t8103
CPID
33027
BDID
42