Why new Launch X431 Diagnostic Tablets Cannot Upgrade Internal Memory

When choosing a professional automotive diagnostic tool, many technicians ask:
“Why can’t I expand the memory on my Launch X431 diagnostic tablet like PRO3, PRO3S+ Elite .etc?”Previous old type Launch X431 V+ 4.0 i OK to expand.
This is a common question from users of the Launch X431 series, including X431 PAD VII, PAD V, PRO5, PRO ELITE, CRP919, and other models.

Below is a clear and technical explanation to help you understand the design principle and why memory expansion is not possible.

1. Memory on Launch Tablets Is Integrated Into the Mainboard

Unlike consumer Android tablets or laptops that use removable RAM modules, Launch diagnostic tablets use an integrated memory architecture.
This means:

RAM is soldered directly onto the motherboard
Storage chips are also embedded and not socket-based
There is no physical slot to add or replace memory modules

This integrated design is common in rugged industrial diagnostic equipment to ensure stability, durability, and resistance to vibrations and temperature changes commonly encountered in workshop environments.

2. Why Launch Uses Non-Expandable Memory

There are several technical and reliability reasons behind this design choice:

✔ Higher Stability for Automotive Diagnostics

Soldered memory reduces the chance of loose connections, which is critical during ECU programming, coding, and module flashing procedures.

✔ Better Protection for PCB Architecture

A compact integrated design allows Launch engineers to optimize internal layout for heat dissipation, long-term durability, and secure communication through OBD and CAN bus systems.

✔ Lower Risk During High-Level Functions

Features like online programming, anti-theft functions, and coding require absolute stability.
Expandable RAM increases the chance of errors and corrupt operations.

3. Recommended Solution If You Need Better Performance

If your current device feels slow or frequently runs out of internal storage, performing a factory reset will fix it.

or Upgrade to a newer Launch X431 model with larger built-in memory.

Newer models like X431 PAD VII, X431 PAD V Elite, and X431 PRO5 offer: