The script is designed for reading/writing the EEPROM of the MM9Z1J638 processor, which is used in the BMS controllers of Porsche Taycan and Porsche Carrera 911 battery packs.
The script only works with iProg Pro programmer!
Features:
- Reads the processor ID (always 02070207, regardless of the battery number).
- EEPROM reading (5 seconds).
- EEPROM writing (18 seconds).
- EEPROM dump modification for battery unlocking (a button modifies the dump in the EEPROM buffer).
Usage is straightforward:
- Solder connections according to the provided diagram.
- Read the EEPROM.
- Save the dump.
- Press the REPAIR EEPROM button.
- Write the modified buffer content.
- Charge the battery to 13-13.3V.
- Reinstall the board.
The reset algorithm has been tested on 9J1915105K and 9Y0915107H.
Open the program and click “Help” -> “About”.

Copy data from the program when placing an order

After completing the order, you will receive files, they must be added to the Scripts folder..

Launch the program and on the left side of the screen you will see the added scripts.

1. No Refunds or Modifications for Digital Licenses
Activated modules or licenses cannot be returned or refunded.
If an incorrect key or device number is entered by the customer, the purchase is not eligible for return.
Licenses cannot be modified, transferred, or reissued for another device under any circumstances.
2. Irreversible Order Processing
After the order status changes to “Waiting for activation”, the data has already been sent to the developer.
From this point onward, the order cannot be canceled, edited, corrected, or refunded.
3. Responsibility for Software Functionality
Our store is not responsible for the functionality, performance, or declared features of any software module.
We do not guarantee the listed functions because we are not the developer.
4. Accuracy of Product Information
Module and script descriptions are provided directly by the manufacturer.
IOBD.io is not responsible for any inaccuracies, missing details, or differences between the description and actual operation.
In disputed situations regarding functionality or listed features, the customer must contact the manufacturer.
5. Customer Responsibility for Installation
IOBD.io sells professional automotive diagnostic software and equipment.
Installation, setup, configuration, and compatibility checks must be performed by the customer.
We do not provide remote installation, programming, or setup services unless explicitly stated otherwise.
6. Required Technical Knowledge
These products are intended for users with basic technical knowledge in automotive diagnostics.
The customer is fully responsible for understanding the installation process and using the software and hardware correctly.
7. No Liability for Incorrect Usage
IOBD.IO is not responsible for issues caused by:
incorrect installation
unsupported or incompatible hardware
improper configuration
third-party interference