Original Launch X-431 OBDII Diagnostic Scan Tools

How to clone Buick T87 gearbox TCU with Launch X-prog3 and PC adapter ? Select Cadillac-ATS-T87 SPC564A protocol. Check wiring diagram. Connect X-prog3 with T87 TCU via X-prog3 PC adapter. Connect TCU. Read TCU information. Read and save Flash data. Disconnect. Connect the donor TCU with X-prog3 and PC adapter. Connect donor TCU. Back up flash of the donor TCU. Write original TCU data to the donor TCU. Write data successfully.     Disconnect donor TCU. Install the donor TCU to vehicle.

 Problem: Issue with Launch x-prog3 pc adapter software. It is global version. Overtime i click for update software or trying to download wiring diagram it shows me could not connect to remote server and error message as in the picture. It's brand new unit first time use. Already registered the device.   Solution: Click on the software update dialoque box and wait for the software to download. It downloads to the download folder of your laptop/computer. Go to downloads folder and install the downloaded software and after this it should work fine.   Or uninstall the software from your computer and start the process from the beginning. Reinstall the latest version and try again with good internet. The software you installed currently is xprog3 pc adapter blue in color. Install another software ecu&tcu cloning green in color and activate the product. I had a similar problem with mine and this is what I did.  Where to find green software? From the same side you dow...

  Launch X431 released new ECU/TCU cloning software V10.40 on Jan 13th, 2025. Support Products:  Launch X-431 ECU TCU programmer ,  X-prog3 and PC adapter ,   Launch X431 scanner with X-prog3 V10.40  1. Added read and write, personalization, clearing function for BOOT mode Benz transmission TCU  VGS4-0-NAG2, VGS4-500-NAG2. (1st Release!!!) 2. Added BENCH mode Cadillac, Chevrolet transmission ECU  T87A read and write  function. 3. Added read and write function for BENCH mode Great Wall transmission  ECU 7DCT450 . 4. Added read and write function for BENCH mode Great Wall, Geely engine ECU  MG1US008/MG1UA008 . 5. Optimized BMW E83 data read issue. 6. Optimize the expired device usage status so that when the device is expired, the functions released before the expiration can still be used. New updates are restricted to download when the free subscription has expired   Here we show how to virgin Benz VGS4 NAG2 TCU with Launch ecu progra...

Launch X431 ECU Programmer   and   X-prog3 PC Adapter   use different PC software although function is the same. Software cannot be mixed. Where to Download PC software for each device?   1. Download PC software for Launch ECU & TCU Programmer   Standalone version Download Link:   https://en.cnlaunch.com/products-detail/i-243.html Drop down and click “Download” Software language: English, German, Japanese, Russian, French, Portuguese, Korean, Italian, Arabic, Traditional Chinese Select the corresponding language setup 2. Download X-prog3 PC Adapter Software   work in conjunction with   X-prog3 Download Link:   https://en.cnlaunch.com/products-detail/i-40.html Drop down and click “Download” Software language: English, German, Japanese, Russian, French, Portuguese, Korean, Italian, Arabic, Traditional Chinese Select the corresponding language setup   PC software installation is easy, download PC software and install setup directly. If ...