What are BYD DiLink 3, 4 and 5? Which version is on which model?

First, know this: the model name does not settle the version

BYD's official DiLink support page does not publish a table matching generations to models; the page only lists the platform's general features and the models that have DiLink. Community sources also list different generations for the same model depending on production year. So this guide does not look at a model name and say "this model has this version". The right way is to read your own car's software version, and you will find how below. Each model's own page has the platform and screen information Yoldaş has for that model.

What is DiLink?

DiLink is the software platform of the touchscreen multimedia display in BYD cars. It is built on Android; car settings, apps, camera views and BYD's cloud services all go through this platform. BYD's own support page presents the platform under headings such as an Android-based smart system, a split-screen app view, light and dark themes and vehicle control over the cloud. Yoldaş is also an Android app that is installed on this screen.

3, 4 and 5: the generations

According to a community table, the generations break down as follows. Because there is no official table, read this as a guide to the direction rather than as an exact answer.

It is worth noticing that 3.0 and 4.0 use the same Android version in the table: the difference between the two generations is mostly in the interface and the processor. That is why Yoldaş handles DiLink 3 and 4 on the same path ("DiLink 3 / 4", Android 10) and recognizes DiLink 5 separately.

How do you find your version?

There are two separate numbers, and they are often confused:

• Generation (3, 4, 5): BYD's name for the platform. It is often not written anywhere on the car's screen.
• Software version: the long number in the system information section of the car settings. Example format: 13.1.33.2606100.1. The first digits show the platform group; the last digits carry the build date and the release order.

Yoldaş's install guide also asks you to find your software version first: Install apps on a BYD. If Yoldaş is installed, the Compatibility report under System › Diagnostics and logging gathers the platform, the software version and the screen details in one place. The report contains no VIN, serial number or location.

What do the first digits of the version number decide in Yoldaş?

Yoldaş decides the platform first by looking at the beginning of the software version. Observed examples:

• Starting with 13.1.33: the group read on the BYD Seal that Yoldaş is developed on (13.1.33.2606100.1). In this group, the cluster display is offered for the Seal and Seal U DM-i.
• Starting with 13.1.32: this group appears in a published technical study of the Dolphin (13.1.32.2507250.1). Atto 3 and Dolphin owners are mostly in this group. In this group the screen behind the steering wheel is not an Android screen, so Yoldaş does not mirror to the cluster.
• Starting with 51: Yoldaş recognizes this as DiLink 5. The Sealion 7 uses this platform.

On DiLink 5, Yoldaş opens, recognizes the platform and tells you on the car screen which sections are off; the app does not crash. For details, see the Sealion 7 page.

Details for your model

The platform, software group, screen and supported features are written separately on each model page:

• BYD Seal and Seal U DM-i: cluster display available.
• Seal U EV, Atto 3, Dolphin: no cluster display.
• Han, Tang, Atto 2, Sealion 7.

To see what the cluster feature does, see the Cluster display page. If you are ready to install the app, the guide to installing from a USB stick and the download page are the next steps.

Sources

• BYD's official DiLink support page (platform overview; no generation table): byd.com/en-ma/support/dilink
• A community table of DiLink generations (Android and interface versions): bydhack.com/en/systems
• A technical study of the Dolphin multimedia unit (DiLink 3.0, Android 10, an example software version): github.com/wheregoes/byd-dolphin-hacking
• Measurements taken from Yoldaş's development car (Seal, software 13.1.33.2606100.1).