# Phase-0.7 rollback preparation

Status: **OFFLINE PREPARED; NOT DEPLOYED**.

The stock elfldr v0.23 release asset is included when the offline package is
generated:

- size: 397000 bytes;
- SHA-256:
  `092d16ee0ede0c494947efd38d1a17bbd7cc4b022d3858ea898833c188c703e8`.

The exact stock Payload Manager v0.3.1 binary is not present in the offline
workspace. Its previously verified installed/release identity is:

- size: 2050320 bytes;
- SHA-256:
  `518740adbacccb9094fadb07dd424c53ee290f38306449ccc9d6957fdf813c0b`.

Therefore any later installation must first make a byte-for-byte backup of the
actual installed Payload Manager and verify that exact hash. If it differs,
stop. The rollback set is not complete until that on-device backup exists.

Rollback authorization is separate from installation authorization. This
document intentionally contains no connection, copy, service-start, or
execution command.