When UnlockTool reports a loader is "not found," it usually means the local directory where the tool expects boot files is empty or the specific file for your board ID is missing.
in UnlockTool typically occurs because the software is missing the specific Ramdisk or Loader files required to communicate with the device's bootrom. This is common with older models like the When UnlockTool reports a loader is "not found,"
| Feature | Low Quality Loader | High Quality Top Loader | | :--- | :--- | :--- | | File Source | Random Telegram/Blog | Official IPSW or Trusted Forum | | iPhone 7 (2n61ap) Detection | Unstable (Error 4013) | Instant & Stable | | Baseband Retention | Often corrupts baseband | Preserves baseband (BB) | | Success Rate | < 30% | > 98% | | Error Message | "loader not found" or "checksum fail" | No errors, proceeds to Flash mode | High Quality Top Loader | Feature | Low
If UnlockTool uses a JSON mapping, an entry might look like: 30% | >