In this article, I would like to share my experience with the ECUHELP Htprog adapter that I recently received. It Reads CAS3+ (0L15Y) EEPROM and Flash with Success.

Today, I was pleasantly surprised to find extra cables included with my package. Typically, I only receive the board without a case, but this time it came with a case. Additionally, I received a boot cable. However, there was also a small adapter included, although it didn’t come with any extra wires.

Luckily, I managed to obtain an additional adapter specifically designed for EEPROM.

I also received a programming cable adapter that features all the necessary wires, including the ground connection.

Furthermore, I have a cable that is used for resetting keys, as well as another small cable that matches the colors on the schematics.

Interestingly, I have two of these adapters, and one of them was included in a basic package. I have both of them with me now.

The circuit includes a socket diagram reader.

In just a few seconds, I will proceed to program a CAS3 unit.

I currently have the CAS3 unit placed on my bench, and all the necessary cables are prepared. I will be using them solely for testing purposes. Now, I will proceed to open it.

The CAS3 unit I am working with is an OL15Y model.

To successfully read the data, I will refer to the schematics and carefully follow the soldering instructions. This will enable me to determine if the reading process is effective.

We will use the “On Bench programmer” function, as it is specifically designed for BMW vehicles equipped with a CAS access system and CAS3+.

At this stage, I will require a CAS3+ wiring diagram to proceed accurately.

I noticed the color doesn’t really fit properly, so we have on the schematic blue and light blue.
For me, these colors look the same blue, I don’t know which one, I need to solder.
But I will try my best to solder the proper ones. I’ll add some extra Zoom.

After successfully soldering the wires, I can confirm that the connections have been made accurately.

Following the schematics, I connected the CAS3+OL15Y to the HTprog Adapter.

We will now continue the recording process using a laptop. I will attempt to read the data without connecting power. In case of any issues, I will explore the possibility of connecting external power to the programmer.

Fortunately, we have successfully obtained the data from the CAS. This data corresponds to the EEPROM, and we will ensure its preservation.

Now, let’s proceed to read the flash data as well. Unfortunately, the reading process failed with my current software version. To resolve this, I decided to reinstall HTprog 3.16.

Password: 000
The file was uploaded by ecuhelpshop.com engineer.

Currently, I will patiently wait for the EEPROM data to be loaded. Let’s see if the reading process this time will meet our expectations. We have also successfully read the flash data.

Now, let’s evaluate if there is a need to read the EEPROM data.

We have the following data: VIN, mileage, DME SK. However, it is important to note that HTprog does not support the key slot, at least not in the public data adapter.

But, as evident, the HTprog Clone Adapter is successfully reading a CAS3+.