CAS3+ C4 Editor - ECU EEPROM IMMO Key and Mileage Service 1.2

Bin said:

Support and discussion for BMW CAS3+ C4 Editor v1.2. Repair CAS3+ after downgrade recover encrypted ISN create All Keys Lost EDC16 solution enable Crypto OFF save edit VIN ISN mileage power class EGS status key frequency and sync EGS + DME. Works with XPROG-M UPA-S Orange5 VVDI Prog Rosfar. MCU masks 0L15Y and 0M23S. Also searched as CAS 3 Plus.

CAS3+ C4 Editor | Repair ISN & Repair Tool

25.06.2025

The advanced tool for CAS3++. Repair ISN, repair bricked modules, and solve All Keys Lost.

• Bin
• isn cas3
• 🏁 BMW Group – Diagnostics

BMW CAS3+ C4 Editor v1.2 — Repair ISN Keys and Sync — Community Help​

Free CAS3+ Editor v1.2. Recover ISN and module state handle All Keys Lost for EDC16 perform Crypto OFF save run EGS + DME sync and edit VIN ISN odometer and key data. Supports masks 0L15Y 0M23S. Compatible with XPROG-M UPA-S Orange5 VVDI Prog Rosfar.



Identify your module — CAS3 vs CAS3+

• Part number on sticker. CAS3 usually starts with 61.35 and sits in the 6xx range. CAS3+ often starts with 61.35 and sits in the 9xx range.
• MCU mask. CAS3 uses 0L01Y. CAS3+ uses 0L15Y or 0M23S.
• Programming note. For CAS3+ at least one working key is usually required.

What is inside

• Overview and screenshots
• Change log and compatibility
• Guides for Repair ISN Crypto OFF ELV OFF and EGS + DME sync
• All Keys Lost EDC16 workflow
• Troubleshooting and known errors
• Download link and setup notes

Common questions

• Module stays locked after write — recheck mask and dump size 4KB and repeat save with Crypto OFF then power cycle
• ISN cannot be recovered — try a different dump version and confirm ECU family for EDC16 All Keys Lost path
• Sync fails with EGS or DME — match 4-byte ISN first then run sync again and cycle ignition
• Odometer not updated — verify correct area and write back full EEPROM not only info block

Download and full details — CAS3+ C4 Editor v1.2

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