Technical Report: Aerix V099 and Sony Ericsson Terminal Unlocking

Date: October 26, 2023 Subject: Analysis of Aerix V099 Functionality and "Fixed" Exploits for Sony Ericsson Handsets

Warranty: Using third-party software like Aerix would void the manufacturer's warranty.

  1. The IMEI is processed with a different checksum algorithm.
  2. The unlock code is generated using an alternate seed/key table.
  3. Some users also report needing to enter the code twice in quick succession (hence “2nd fix” – second attempt works).

The original Aerix v098 had a fatal flaw: it would lock up when it hit a phone with a "semccsd" loader error. The app would generate a 16-digit code, you’d type > * < < * < * on the keypad, but the phone would reply "Code error. 3 tries left."

The "2" in the keyword implies support for CID29 and CID36 phones (the second generation of Sony Ericsson security). Supported models include:

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