LAUNCH X431 IMMO & ECU Software Update (October 21, 2026)

New updates for LAUNCH X431 IMMO and ECU software were released on October 21, 2026. These include general updates for X431 devices as well as specific updates for the XPROG5. Details regarding these updates are provided below:

Part 1: X431 IMMO Software Update Content

General updates applicable to the entire X431 series:

Nissan V11.26

• Added IMMO password reading (by chip removal), key matching, and body control module (HFM) replacement functions for the 2025 Nissan Kicks.

MG(SAIC) V10.30

• Added key matching function for MG4X.
• Added key matching, alcohol interlock deactivation and alcohol interlock activation functions for MG S6 EV.
• JAC V10.50
• Added key matching functions for JAC Refine RF8, Refine RH8 PHEV, Yiwei 3, QX PHEV, Xingrui Series 7, pickup T8 PRO, and pickup T9 EV.

Saab V10.20

• Added key matching function for Saab 9-2.
• Added key adding and all-keys-lost matching functions for Saab 9-7.
• Added IMMO matching functions for Saab 9-3, 9-5 (1997-2010), and 9-5 Sport (2003-2012).

IMMO software update exclusively for XPROG5:

(XPROG5) Mercedes-Benz V10.80

• Added key disable function for Mercedes-Benz 4th-generation IMMO.
• Added all-keys-lost password calculation and key matching function for W463 (CAN).
• Added key frequency detection function.
• Added 3rd-generation transmission (TCU) read and erase functions.
• Added key adding, all-keys-lost matching and password reading for W230 lock (CHIP method).
• Added all-keys-lost matching and password reading for 215K / 220K (CHIP method).
• Added lock matching key reading via CHIP method.

XPROG5 IMMO Software V12.30

• Added wireless dealer-key generation for Volkswagen 5C/5D.
• Added BOOT-mode engine ECU read/write for Magneti Marelli 4DF, 4GF, 4GV and 4SF.
• Added BENCH-mode read/write for Magneti Marelli engine ECUs 4AF, 6JF, 6J0, 7GF, 8F3, 9GV and 10GF.
• Added Jaguar BCM data read/write with NXP MC9S12XET256.
• Added Jeep/Ford BCM data read/write with Renesas R7F701056.

Part 2: X431 ECU Software Update Details

X431 ECU Clone Software V10.76

• Added 8F3 KWP protocol reset function.
• Added Simos18.1 anti-theft data cloning function.
• Added Simos18.7 BOOT mode data read/write function.

NOTE: The above ECU upgrade content is applicable to XPROG5 / XPROG3 with PC Adaptor / X431 ECU & TCU Programmer.