1
Pick car and controller
Select the vehicle, then the ECU family. Turn on Auto Detect when you want SUMX to identify the controller from the file.
SUMX v1.1 · Server online
Patch ECU checksums and CRCs without guessing.
SUMX is a licensed desktop app for tuners and workshops. Choose the car and controller, drop a BIN file, and recalculate the checksums that keep a flashed file valid.
SUMX v1.1 — Checksum
How it works
Three steps that match the app.
If you already open BIN files for remaps, the SUMX screen will feel familiar. The workflow is the same one in the screenshot.
2
Drop the BIN
Drag a binary onto the cloud panel or use Open. The path shows under the drop zone so you can confirm the right file.
3
Patch
When the file is loaded, Patch writes the checksum and CRC values for that controller. Logs stay on screen so you can review the result.
Why SUMX
Built for people who flash files every day.
Auto Detect
Let the app match the controller when the BIN header is known. Manual selection is always available.
Desktop workflow
No browser upload. Work on local BIN files the way you already do next to your flasher.
Growing support list
Bosch, Continental, Delphi, Siemens, and more. Check the live list before you take a job.
Pricing
Licenses that match how you work.
Choose a monthly or yearly seat. Contact us to license. The yearly rate is a beta price.
1 month
$85 / month
Short-term seat for active benches.
- 10 files per day
- Full support list
Beta price
1 year
$300 / year
Annual seat at the current beta rate.
- 20 files per day
- Full support list