Opel EEPROM PIN Picker — SH7058 and 95040 Calculator 0.0.1 alpha

Opel EEPROM PIN Picker is a portable offline Windows calculator for extracting security PIN data from specific Opel module EEPROM layouts. It provides two clearly separated paths: SH7058-related EEPROM data and UEC/REC serial EEPROM data used in supported Astra H and Zafira B electrical modules.

Supported vehicles, ECUs and files​#

The application interface explicitly identifies an SH7058 EEPROM input and a UEC/REC 95040 path, with 25040/95040 labeling visible for the under-hood or rear electrical-center workflow. This is a file-format calculator, not a universal Opel PIN database. Module label, memory device, dump size and data integrity must all match the chosen path.

• Supported SH7058 EEPROM binary layouts recognized by the first calculator path.
• UEC or REC 25040/95040 EEPROM dumps used by supported Astra H and Zafira B modules.
• Offline extraction only; no CAN, OBD, key programming or direct module read/write is performed.

Functions​#

• Load a binary into the matching SH7058 or UEC/REC workflow.
• Decode and display the PIN stored in a supported layout.
• Keep separate module/memory algorithms in one compact interface.
• Allow validation before the result is used with an authorized diagnostic procedure.

System and hardware requirements​#

• A Windows PC with a compatible .NET Framework environment.
• A suitable EEPROM/MCU programmer and the correct pinout or safe module-access method.
• At least two matching reads plus the module part number and confirmed memory type.
• A separate Opel-capable diagnostic tool for security access or module programming.

Recommended workflow​#

1. Identify whether the source is SH7058 data or a UEC/REC serial EEPROM; never guess from filename alone.
2. Make repeated reads, compare hashes and archive the untouched original.
3. Choose the corresponding calculator path and record the result without altering the dump.
4. Validate the PIN in the correct service procedure and stop after any unexpected security response.

Package contents​#

The archive contains one unsigned managed Windows Forms application. It includes no programmer, driver, module pinout or vehicle diagnostic software. Static inspection was completed without running the executable.

Important limits​#

Astra H/Zafira B contain several security-related modules and not every dump uses these layouts. Loading the wrong memory type can return a meaningless value, so never rely on an output that was not tied to an exact module and repeatable read.