![]() If it fails, try using a different iOS firmware image. After you boot and unlock the iPhone using the downloaded image, EIFT will attempt to unlock the disk. If this is the case, you can attempt to use the first version of iOS suggested by EIFT. However, in some cases the iBoot version may correspond to several iOS builds. The detection is based on the iBoot version. In many cases, the iOS version will be detected automatically by EIFT during the first stage of the exploit. This process requires you to have a copy of the original Apple firmware image that matches the device’s iOS version and build number exactly. Instead, a separate, patched version of the original Apple firmware is booted in the device RAM. Our extraction solution does not use the operating system installed on the iPhone to boot the device. This means a 64GB device can be typically extracted in less than 30 minutes, while fully loaded 256 GB models can be extracted in about 1.5 hours (the 10 to 15 GB occupied by the operating system are skipped). The acquisition speed of the iPhone X and other devices of the same generation can be roughly 40 to 45 MB/s, or approximately 150 GB per hour. You must be able to download the official Apple firmware (download link will be provided during the extraction) that matches iOS version installed on the device.Note that Type-C to Lightning cables are incompatible with this extraction method. If a non-empty screen lock passcode is set, you will have to boot the device to iOS and manually remove the passcode (be aware of forensic consequences). iOS 14.x and iOS 15.x: on this generation of iPhone devices, screen lock passcode must be empty to use the exploit. ![]() Otherwise, limited BFU extraction may be available, but very little information can be obtained this way.
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