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2. Preparing the image

The image is checked as soon as you upload it. An image that does not pass the checks never enters the queue, so prepare it first.

2.1. File requirements

  • A full raw flash image (.bin) of a supported unit — not HEX, S19 or a ZIP archive.
  • The file size must match the unit; the largest accepted file is 16 MB.
  • One image per test.

2.2. Checksums

A real ECU refuses to start firmware with broken checksums, so the virtual dyno refuses it too. Correct the checksums with your tool before uploading.

When the checksums do not match, the cabinet lists the checked ranges: the block (by its software or calibration number), the range, the algorithm, the stored and the computed value and the result. The ranges that failed are highlighted.

2.3. Stock and tuned images

  • Stock — the factory image of a supported vehicle, unchanged.
  • Tuned — an image of the same software (Program ID) with a changed calibration.

The report shows which of the two was tested. To see what a tune changes, test the stock image and the tuned one and compare the reports of the same emulator release (§8.2).

Updated November 14, 2026 · for TCEPro 0.54.1