Frequently Asked Questions about tools and credits

When getting started with tuning, you'll quickly come across terms like "tools," "credits," and "licences." But what exactly do you need? How do credit systems work? And which tool is best suited for your situation?

In this section, we answer the most common questions about purchasing, using, and understanding tuning tools and credit systems. Whether you're working with KESS3, FLEX, or another platform — this FAQ will help you make the right choices and avoid unexpected issues. If your question isn't listed, feel free to contact us!

What are the most well-known tuning tools on the market?

Autotuner, KESS3, CMD Flash, Magic Motorsport, Alientech, DIMSport, and Flex are among the most commonly used and well-known professional tools.

What is the difference between slave and master tools?

A slave tool works with a file service that modifies the files. A master tool provides full access to and editing of the files. Slave tools encrypt the read files—only master tools can open and edit these files.

Which tuning tools are best suited for OBD tuning?

Autotuner and KESS3 are very suitable for OBD tuning. They offer fast connections and broad vehicle support.

What are file credits and how do they work?

Credits are digital currency used to request tuning files. You upload an original file and pay with credits for the modified file.

How much does a modified ECU file cost on average?

On average, the price ranges from €65 to €120 per file, depending on how many credits you buy at once, the type of tuning, the vehicle type, and whether you’re a slave or master user.

Can I learn to use file editing software myself?

Yes, with practice and good guidance you can learn to use software like WinOLS. Start simple and build experience. We’re happy to help you get started.

Which software is suitable for ECU file editing?

WinOLS is the most comprehensive. Other tools include ECM Titanium, Swiftec, and RaceEVO—each with their own interface and features.

How do I update my tuning tool and software?

Updates are usually offered through the official software. Ensure you have an internet connection and follow the supplier’s instructions. Resellers also regularly send out update notifications.

Can I use files from other tools in my system?

No. Many tools use proprietary formats. Master tools can handle universal BIN files, but slave tools are often limited. If you want to switch tools, you’ll first need to check whether the specific vehicle can be read by the new tool. If so, a new readout will be required.

Are there subscription fees for tuning portals?

It varies. Some providers charge an annual license or update fee. Dyno-Chiptuningfiles works without mandatory subscriptions—you only pay for what you use.

What happens if something goes wrong while writing the ECU software?

Use tools with recovery mode. Always make a backup so you can restore the original file. In the worst case, the ECU can be recovered via bench or boot mode.

What if the writing process is interrupted?

Interruptions can lead to corrupted software. Recovery is usually possible via a full reflash or using bench/boot mode with a backup.

Can I use multiple tools at the same time in one portal?

Yes. Dyno-ChiptuningFiles supports multiple tools under one account (e.g., Autotuner and KESS3).

How do I know if my tool supports a specific vehicle?

Check the vehicle list provided by the tool manufacturer. Dyno also offers advice based on your vehicle specifications. You could link to the download page at tuning-shop.com, which includes all vehicle lists: https://tuning-shop.com/downloads/.

Can I learn file editing myself or should I outsource everything?

Both are possible. Many tuners start by outsourcing to a file service and gradually learn to edit files themselves using WinOLS or similar software.

How often should I update my tool, and what happens if I don’t?

Update regularly to maintain access to new vehicles. Outdated tools may lose support and become unstable.

Are there universal tools for all brands, or are they brand-specific?

Some tools (like Autotuner and KESS3) support many brands. However, tools often perform better with certain brands or models. There is no single universal tool that covers all brands.

What if a tool doesn’t recognize the ECU or crashes?

Try another mode (bench/boot). Check connections and power supply. Contact support or try an alternative tool.

Can't find the answer to your question?

We’re here to help! check our other faq's:

CHIPTUNING FAQ   TECHNIAL FAQ
GENERAL FAQ   COMMON MISTAKES

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