IMPORTANT - The information on this page is ONLY applicable to the 3B engine. It is NOT transferable to the ABY engine. 

The image below depicts the pin locations as if viewing the connector on the ECU.

The image below depicts the 3B ECU pinout when viewing the cable assembly.

The following table defines the functionality of each of the 55 pins on the 3B Motronic ECU. 

Yoga Tab 3 Pro Custom Rom Info

Officially, the Yoga Tab 3 Pro never saw an update beyond Android 6.0 Marshmallow. That’s a tragedy for a device with a gorgeous 2560x1600 QHD display and an Intel Atom x5-Z8500 processor. But for the custom ROM community? That’s an invitation. Here’s the catch: The Yoga Tab 3 Pro doesn’t run a standard ARM chip. It runs an Intel x86_64 Atom CPU. Most custom ROMs are built for ARM devices. So, for years, this tablet was stuck. The bootloader was locked, and Intel’s proprietary code meant no LineageOS, no Pixel Experience, nothing.

Today, you can run on your 2015 Yoga Tab 3 Pro. yoga tab 3 pro custom rom

Until the Russian 4PDA forum got involved. Thanks to a handful of stubborn developers (notably mologa and highwaystar ), the impossible happened. They exploited a bootloader vulnerability, unlocked the Intel-specific quirks, and ported TWRP (Team Win Recovery Project) to the device. Officially, the Yoga Tab 3 Pro never saw

Lenovo moved on. But the modding community refused to let the projector die. And that’s the beauty of custom ROMs—not just updates, but rebellion against planned obsolescence, one quirky Intel tablet at a time. Want to try it? Search for “YT3-X90F LineageOS 20” on XDA-Developers or 4PDA—and bring patience. That’s an invitation

In the graveyard of quirky Android tablets, few stand out like the Lenovo Yoga Tab 3 Pro (YT3-X90F) . Released in 2015, it wasn’t just a tablet; it was a multimedia Swiss Army knife. Built into its iconic cylindrical hinge was a built-in 50-lumen Pico projector and a massive, swing-out kickstand. It had a metal body, a premium feel, and ran Android 5.1.1 Lollipop.

Then, Lenovo forgot about it.