Stop repeated programming attempts.
Leave the controller and vehicle in the last known condition.
FLEX Master • supported Bench / Boot paths
ECU / TCU Module Rescue
Structured triage for a controller that stopped communicating, failed during programming or may contain corrupted data. Recovery depends on the exact unit, hardware condition, available original data and supported access path.
First-response checklist
Do these five things now.
Useful evidence is more valuable than another blind attempt.
Preserve tool logs and files.
Keep the original read, attempted file, logs, screenshots and exact error text.
Photograph the controller.
Capture the full case, connector side and a straight, readable label photo.
Record what happened.
Tool, protocol, access method, operation, timing and any power or communication interruption.
Do not open it just to search.
FEF will determine whether removal, Bench or Boot access is appropriate after identification.
What may be evaluated
- Interrupted or incorrect supported write
- Controller identification with limited communication
- Available flash, EEPROM or full-backup comparison
- Supported Bench or Boot recovery route
- Legitimate cloning or replacement-module preparation by scope
Information FEF needs
- Vehicle, controller family and complete label
- Hardware / software identification when available
- Exact tool, protocol and operation used
- Original, virtual, modified and known-good files
- Current communication and vehicle condition
What this page does not promise
Compatibility, file integrity, unlock, cloning, recovery, turnaround and final operation must be verified for the exact controller. Physical hardware damage, missing unique data or an unsupported state can prevent recovery.
Ticket-based custody
Loose modules stay tied to the project record.
When a loose ECU, TCU, key, harness or supplied file enters FEF custody, the applicable custody record identifies what was received, its visible condition, supplied accessories and authorized work.
Bring or uploadController label photosOriginal / attempted files in ZIP formatProgramming logs or screenshotsVehicle and ownership information
Preserve the evidence
Start the recovery record before another attempt.
The intake creates the Ticket ID. FEF reviews the module, history and available data before quoting a supported recovery path.