Mastering chip-level programming, EEPROM reading, and data processing is a key skill for modern automotive locksmiths and ECU technicians. The Xhorse Multi-Prog Mastering Programming Book is a practical technical guide designed to help professionals improve their programming skills and handle complex module repair tasks with confidence.
From BMW CAS module recovery and ECU cloning to EEPROM reading, writing, and memory dump calculation, this 580+ page guide offers detailed, step-by-step instructions for real-world applications with the Multi-Prog Programmer.

What’s Inside the Book?
- Hardware Foundations & Soldering Skills
- Basic memory chip types (EEPROM, FLASH, SRAM) and data fundamentals.
- Essential chip desoldering and soldering techniques for 8-pin (SOP/MSOP) packages like 93C66, 93C86, and 95128.
- Xhorse Multi-Prog hardware setup and PC software navigation.
- IMMO & Module Programming Guides
- BMW Key Unlocking: Step-by-step unlock procedures for BMW E and F series keys.
- IMMO Dump Writing: Real-world procedures for Land Rover RFA (MC9S12XEQ384), Audi BCM2 (D70F3381/3382), Porsche BCM, and BMW EWS3 / CAS3+ / CAS4 / CAS4+.
- Dashboard Instrument Data: MQB-LOCK (D70F3525/D70F3535) instrument cluster reading and writing.
- ECU Cloning & Advanced Data Repair
- Bench cloning procedures for Bosch ME9.7, MED17.8.10, MD1CS089, and MEVD17.2.9 controllers.
- Renesas chip programming (R5F113TLL) and new energy lithium battery module servicing.
- Manual data editing cases, including Toyota ECU synchronization and Ford manual dump writing.
- Built-in software utilities: Data comparison tools, Bosch number search, ECU IMMO OFF function, file converters, and data calculators.





Key Book Details
| Specification | Details |
| Compatible Hardware | Xhorse Multi-Prog Programmer |
| Total Pages | 586 Pages |
| Skill Level | Beginner to Advanced ECU Repair Technician |
| Core Topics | Soldering, EEPROM/FLASH Read-Write, IMMO Dump Calculation, ECU Cloning |
Upgrade your bench skill set and reduce module replacement costs by learning chip-level data repair today! Get your copy of GODIAG Xhorse Multi-Prog Programming Book from XhorseVVDI.com
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