If you have a Siemens VDO NCDR 1100 radio in your Opel car, you may encounter a problem when you disconnect the battery or swap the radio with another one. The radio may display a message like "SAFE" or "DISPLAY SAFE" and ask you for a code to unlock it. But what if you don't have the code or you don't know how to enter it?
In this article, we will explain what causes this problem, how to find the code for your radio, and how to deactivate the immobilizer feature that prevents the radio from working in another car. We will also show you some tools and methods that can help you unlock your radio without a code.
Why Does Your Radio Display "SAFE" or "DISPLAY SAFE"?
The Siemens VDO NCDR 1100 radio is equipped with an anti-theft system that protects it from being used in another car without authorization. The radio is paired with the car's display unit and the vehicle identification number (VIN) of the car. When the radio detects a mismatch between these components, it enters a safe mode and locks itself.
This can happen when you disconnect the battery, replace the radio with another one, or install the radio in another car. The radio will ask you for a four-digit code to unlock it. This code is usually found on a sticker on the side of the radio or in the user manual. However, if you don't have the code or you lose it, you will need another way to unlock your radio.
How to Find the Code for Your Radio
There are several ways to find the code for your Siemens VDO NCDR 1100 radio. Here are some of them:
Call your Opel dealer or service center and provide them with your VIN and radio serial number. They may be able to give you the code over the phone or charge you a fee for it.
Use an online service that can generate the code for your radio based on its serial number. You can find many websites that offer this service for a small fee or for free. However, be careful of scams and viruses that may harm your computer or steal your personal information.
Use a software program that can calculate the code for your radio based on its dump file. You will need to remove the radio from the car and read its EEPROM chip with a programmer device. Then, you can use a program like CarProg or VAG-COM to extract the code from the dump file.
How to Deactivate the Immobilizer Feature
If you want to use your Siemens VDO NCDR 1100 radio in another car or sell it to someone else, you will need to deactivate the immobilizer feature that locks it to your car. This feature is activated by default and cannot be turned off by entering the code. You will need a special tool or method to do this.
Here are some options:
Use an OBD2 tool that can communicate with your car's computer and reset the immobilizer feature. You will need a tool like OPCOM or TECH2 that can access the radio module and perform this operation. You may also need a security code or PIN for this procedure.
Use a soldering iron and a wire to short-circuit two pins on the radio's circuit board. This will erase the immobilizer data from the radio's memory and make it work in any car. However, this method is risky and may damage your radio or void its warranty.
Use a virgin dump file that contains no immobilizer data and write it to your radio's EEPROM chip. You will need to remove the radio from the car and read its EEPROM chip with a programmer device. Then, you can use a program like CarProg or VAG-COM to write the virgin dump file to the chip.
The Siemens VDO NCDR 1100 radio is a great device that offers many features and functions for your Opel car. However, it can also cause some problems when it displays "SAFE" or "DISPLAY SAFE" and asks you for a code to unlock it. If you don't have the code or you want to use the radio in 061ffe29dd