Self-service guides, troubleshooting & frequently asked questions
Find step-by-step help for common ECU file upload and modification issues — or reach out to our engineers.
Help guides
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File Upload
How to read and upload your original ECU file
Use your professional licensed tool to read the original ECU file in OBD, Bench, or Boot mode. Save the file with a clear name (e.g. AUDI_A3_2.0TDI_EDC17.bin), then upload it through the file service portal. Always keep a backup of the original read before any modification.
File Upload
Choosing the right read mode (OBD vs Bench vs Boot)
OBD mode is fastest and requires no disassembly, but is not available on all ECUs. Bench mode reads the ECU on the workbench with a direct connection. Boot mode is required for locked ECUs (e.g. Bosch MDG1) and gives full read/write access. Check the Vehicles database for your ECU's supported modes.
Troubleshooting
What to do if your file upload is rejected
Uploads are rejected when the file is incomplete, corrupted, or in an unsupported format. Re-read the ECU and verify the file size matches the expected size for your ECU family. Ensure the file is a raw binary (.bin) and not a zipped or text file. If the issue persists, open a support ticket with the file attached.
Troubleshooting
Understanding your calibration status (Waiting / In Progress / Finished)
Waiting means your file is in the engineering queue. In Progress means a dedicated engineer is modifying your file. Finished means your tuned file is ready for download. Most files are completed in under 1 hour during operating hours.
Account & Credits
How token credits and bulk packs work
Tokens are prepaid credits spent on calibration services. Buy token packs in bulk to save up to 20% per file. Tokens never expire and can be used on any service. View available packs on the Pricing page.
Account & Credits
Requesting a re-tune or revision after delivery
If the delivered file does not meet your expectations, request a free revision within 14 days of delivery via the support ticket linked to your project. Describe the issue (e.g. low-end torque, smoothness) and your engineer will adjust the calibration.
Frequently asked questions
Quick answers to the most common technical and account questions.