TProt OBD Read/Write Locker/Unlocker - Protect your ECU Files & work
Ideal for tuners and workshops, this powerful tool allows you to add or remove TPROT (Tuning Protection) and E-OBD lock. Ensure that only you can read or write the ECU files, protecting your work from theft and locking customers to your workshop. Compatible with a wide range of BOSCH ECUs.
What you get
File package: delivered instantly after payment.
- ECU Protection
- Lock your calibration so nobody else can read or overwrite your tuning work.
- TPROT + OBD Lock
- Two protection modes in one tool — covers 25+ Bosch ECU types.
- Unlock Capability
- Remove locks set by other tuners — regain full access to any ECU file.
- Unlimited Files
- Lifetime license with no per-file fees. Process as many files as you need.
Compatible tools: KESS V2/V3, KTAG, AutoTuner, CMD, PCMFlash, MPPS, FoxFlash, Flex, New Genius.
Product details
ECU Protection • Lifetime License • Unlimited Files
TProt — OBD Read/Write
Locker & Unlocker for Bosch ECUs
Protect your tuning calibrations from competitors and lock customers to your workshop. TProt adds or removes TPROT (Tuning Protection) and E-OBD Read/Write Lock on Bosch ECUs — preventing unauthorized access to your work.
Unlimited Files
Windows + Linux (WINE)
TPROT + OBD Lock
24/7 Support
Free Lifetime Updates
25+
ECU Types
14
Brands Supported
2
Protection Modes
∞
Unlimited Files
24/7
Support
Your Tuning Work Is Exposed. Anyone Can Read and Overwrite It.
Without ECU protection, every OBD reading tool on the market can access and copy your custom calibrations. Competitors can clone your work, customers can leave for another tuner, and your investment in developing remaps goes straight into someone else’s pocket.
Stolen
Competitors read your calibration via OBD
Cloned
Your remap is copied and resold by others
Lost
Customers go to cheaper tuners with your work
Overwritten
Another tuner flashes over your calibration
With TProt, you lock the ECU so only you can read or write it. Your work stays yours.
How ECU Protection Works: 3 Simple Steps
From unprotected ECU file to locked calibration in seconds. Lock or unlock any supported Bosch ECU.
Load Your ECU File
Open your ECU binary readout from any tool — Kess, Autotuner, Flex, PCMFlash, KTAG or any OBD/bench reader. Load it into TProt.
Choose Lock or Unlock
Select TPROT protection, OBD Read/Write Lock, or both. Choose to lock (protect your work) or unlock (remove someone else’s lock).
Save & Flash
Save the protected (or unlocked) file. Flash it back to the ECU via OBD or bench. The calibration is now secured — or freed.
Two Powerful ECU Protection Systems
TPROT prevents tuning tool access. OBD Lock prevents all OBD read/write operations. Use one or both together.
TPROT Protection
Bosch Tuning Protection — blocks tuning tool access
- Blocks ECU Reading — Prevents other tuning tools from reading the calibration data via OBD interface
- Blocks ECU Writing — Nobody can overwrite your remap without first removing the TPROT flag
- Lock & Unlock — Add TPROT to protect your work, or remove it from ECUs locked by other tuners
- VAG + Opel/FCA — Supports the full VAG group (VW, Audi, Skoda, Seat, Porsche, Lamborghini, Bentley, Ducati) plus Opel/Vauxhall/FCA
- EDC17 + MED17 — Covers EDC17C19, EDC17U01, EDC17U05, EDC17CP04, EDC17CP14, EDC17CP20, EDC17CP24, EDC17C54, EDC17C64, MED17.5
OBD Read/Write Lock
E-OBD lock flag — prevents all OBD access to the ECU
- Full OBD Lockdown — Sets the E-OBD lock flag to block all OBD read and write operations on the ECU
- Hardware-Level Protection — The lock is stored within the ECU binary itself, surviving power cycles and resets
- Lock & Unlock — Add OBD lock to secure an ECU, or remove it to regain access to locked units
- BMW + VAG Coverage — Supports BMW EDC17 series plus the full range of VAG EDC16 and EDC17 controllers
- Wide ECU Range — EDC16U, EDC16U1, EDC16U2.1, EDC16U31, EDC16U34, EDC16CP34, EDC17C06, EDC17CP02, EDC17CP09, EDC17CP45, ME7.1, ME7.5 and more
Full ECU Compatibility
Complete list of supported Bosch ECU types, grouped by protection mode and vehicle brand coverage.
🔒 TPROT Supported ECUs
Opel / Vauxhall / FCA
VAG Group (VW, Skoda, Seat, Cupra, Audi, Lamborghini, Bentley, Porsche, Ducati)
EDC17U05
EDC17CP04
EDC17CP14
EDC17CP20
EDC17CP24
EDC17C54
EDC17C64
MED17.5
🛡 OBD-LOCK Supported ECUs
BMW
EDC17CP02
EDC17CP09
EDC17CP45
VAG Group (VW, VW Commercial Vehicles, Skoda, Seat, Cupra, Audi, Lamborghini, Bentley, Porsche, Ducati)
EDC16U1
EDC16U2.1
EDC16U31
EDC16U34
EDC16CP34
EDC17U01
EDC17U05
EDC17C46
EDC17C54
EDC17C64
EDC17CP04
EDC17CP14
EDC17CP20
ME7.1
ME7.5
Supported Vehicle Brands
TProt covers every major brand running supported Bosch ECU types. From VAG group to BMW and beyond.
VW Commercial Vehicles
Audi
Skoda
Seat
Cupra
Porsche
Lamborghini
Bentley
Ducati
BMW
Opel / Vauxhall
FCA
What You Get
One purchase. Lifetime access. No per-file fees. No subscriptions.
🔐
TProt Software
Full TPROT + OBD Lock/Unlock tool with lifetime license activation
♾
Unlimited Files
Process as many ECU files as you need. No quotas, no credits, no limits
🔄
Free Lifetime Updates
All future software updates and ECU support additions included at no extra cost
💬
24/7 Support
Email, live chat and WhatsApp support available around the clock
📄
Discounted File Service
Exclusive discounted rates on custom tuning files with under 20-minute turnaround
💻
Cross-Platform
Runs on Windows XP through 11 (x32/x64) and Linux via WINE
Need Help? Our 24/7 Support Has You Covered.
TProt is backed by tuning-database.co.uk’s engineering team. Whether you need help with an unusual ECU variant, want guidance on the best protection strategy, or need a custom tuning file built — we are always available.
Always Available
Our support team operates 24 hours a day, 7 days a week, 365 days a year. Email, live chat and WhatsApp — weekends, holidays, late nights. We are always here.
Custom File Service
As a TProt customer, you get discounted access to our bespoke file service. Stage 1 through Stage 4, DPF, EGR, AdBlue, DTC — built by our engineers with a typical turnaround under 20 minutes.
Protect your work and your investment. We stand behind every license.
System Requirements
💻
Operating System
Windows XP, 7, 8.1, 10 & 11 (32-bit & 64-bit)
🏸
Linux
Supported via WINE compatibility layer
⚙️
Framework
.NET Framework 4.0+
📩
Internet
Required for license activation
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Protect Your Tuning Work Today
Lifetime license. Unlimited files. No recurring fees.
Your remap. Your customer. Your ECU. Lock it down.
✓ Lifetime License
✓ Instant Download
✓ Free Updates Forever
✓ 24/7 Support
Frequently Asked Questions About TProt ECU Protection
Everything you need to know about TPROT, OBD locking, and protecting your ECU tuning work.
What is TPROT and why do I need it?
TPROT (Tuning Protection) is a flag within Bosch ECU firmware that prevents tuning tools from reading or writing the ECU via OBD. When TPROT is enabled, tools like Kess, KTAG, Autotuner and others cannot access the calibration data. This means nobody can steal your custom remap, and customers cannot have another tuner overwrite your work. It is essential for any professional workshop that invests time developing custom calibrations and wants to retain customers.
What is the difference between TPROT and OBD Lock?
TPROT is a Bosch-specific tuning protection mechanism that blocks tuning tool access to the ECU calibration area. OBD Read/Write Lock (E-OBD Lock) is a separate flag that blocks all OBD read and write operations at a lower level. TPROT is primarily used on VAG group and Opel/FCA vehicles with EDC17 and MED17 ECUs, while OBD Lock has broader coverage including BMW EDC17 units and older VAG EDC16 controllers. TProt software handles both systems and can apply them simultaneously for maximum protection.
Can TProt unlock ECUs that were locked by someone else?
Yes. TProt works bidirectionally — it can add protection to lock an ECU, and it can remove protection to unlock an ECU. If you receive a vehicle with an ECU that has been TPROT-locked or OBD-locked by another tuner, TProt can remove those flags from the binary file. You then flash the unlocked file back to the ECU to regain full OBD read/write access. This is particularly useful when customers switch workshops or when you need to service a vehicle that was previously tuned elsewhere.
Is TProt a one-time purchase or subscription?
TProt is a one-time lifetime purchase. There are no subscriptions, no annual renewals, and no per-file fees. You buy it once and use it forever. All future software updates, ECU support additions, and bug fixes are included at no additional cost. The license is tied to your hardware and activated instantly upon purchase.
Which ECU reading tools work with TProt?
TProt works with ECU binary files from any reading tool. This includes Kess V2/V3, KTAG, Autotuner, Flex, BFlash, PCMFlash, CMD Flash, BitEdit/BitBox, and any other tool that produces a standard ECU binary dump. You read the ECU with your preferred tool, process the file through TProt to add or remove protection, then flash the modified file back. TProt operates purely on the binary file — it does not communicate with the ECU directly.
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Frequently asked questions
What is TPROT?
TPROT (Tuning Protection) is a Bosch security feature that prevents OBD reading/writing of ECU calibration data.
Can I unlock an ECU locked by another tuner?
Yes. TProt can both add and remove TPROT and OBD locks on supported ECU types.
Which ECUs are supported?
Bosch EDC16, EDC17, ME7 families across VAG, BMW, Opel and other brands — 25+ ECU types in total.