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One-click reading of ECU and TCU CS codes for VAG, specially designed for
"all keys lost" key programming on VAG MQB platform cars, transforming a
complicated task into a fast, reliable, single-step process.
Release Details & Key Benefits:
1.Update date: January 27, 2026
2.Version: 1.1.1.0-> 1.1.2.0
3.Core Innovation: One-click reading of ECU and TCU CS codes for VAG
Adding a spare smart key to the 2024 Honda CRV (4A Chip) is a straightforward
process using the Lonsdor K518 PRO. This step-by-step guide will
help you generate and program your new key quickly and efficiently.
Preparation & Tools
Before starting, ensure you have the following items ready:
Here you’ll find helpful answers to common questions about KEYDIY account setup, KD-coins, and feature activation. This
information applies to KEYDIY tools such as KD-X4 and KD-MAX.
Q1: What is account verification and why do I need to do
it?
A: Account verification helps us keep your KEYDIY account
secure and ensures you have full access to all features. It links your account
to your mobile number for easy identification. You’ll need to complete this
one-time step after logging in for the first time.
Q2: How do I verify my account?
A: Simply follow these easy steps:
Enter your preferred name or any text in the required fields.
Select your country/region and enter your mobile number.
If you don’t receive a text with a verification code, you can enter
200909 instead.
You may skip any optional fields.
Once submitted, your account will usually be verified within 2–3 minutes, and
you’ll receive 50 KD coins as a welcome bonus.
Q3: How can I earn KD coins?
A: Some methods are available below.
1.Finish user verification to get 50 KD coins in your account.
Note: KD coins are not available for direct purchase.
Q4: How do I add money to my wallet?
A: At this time, adding funds is only available for Android
users via Google Pay. iPhone recharge is not currently supported.
Q5: What if I don’t have enough coins or dollars to unlock a
feature?
A: No problem! You can ask another KEYDIY user — such as your dealer, a local locksmith, or a
friend — to activate the feature for you. They can complete the payment on your
behalf.
Q6: How does someone activate a feature for me?
A: The person assisting you should:
Open KEYDIY App and go to More > Activate License
on Behalf.
Tap "Select User" and enter your registered mobile number.
Choose the feature(s) you’d like (e.g., MQB, BMW) and select whether to pay
with KD coins or dollars.
Complete the payment. Once done, the feature will be available in your
account right away.
Choosing the wrong battery tester wastes
time and risks diagnostic errors. With five Topdon
models available — BT600,
BT600 Plus, BT300P,
BT100W, and BT
MobileProS — this direct comparison helps you quickly identify which tool
matches your workshop’s specific needs and workflow.
Technical Specifications Comparison
Table
Key Differentiators
Explained
Topdon
BT600 → The workshop standard with balanced features Why it stands out:
Built-in printer + 3.5" color display + complete diagnostics Best for:
General repair shops needing reliable testing with physical reports
Topdon BT600 Plus → The voltage-versatile
upgrade Why it stands out: Adds 6V system testing to BT600’s
capabilities Best for: Technicians working with classic cars or specialty
vehicles
Topdon
BT300P → The compact professional Why it stands out: Printer-equipped at
a competitive price point Note: Lacks system testing functionality Best
for: Budget-conscious professionals wanting essential features
Topdon BT100W → The entry-level digital
option Why it stands out: Basic app support + battery library at
12V-only Best for: Occasional use or as a secondary diagnostic tool
Topdon
BT MobileProS → The connected future Why it stands out: Full app
integration + maximum portability Best for: Technicians preferring digital
workflows over printed reports
Top Recommendations for Different
Users
Best Overall: Topdon BT600
Perfect for: Most automotive
workshops Key advantages: • Complete diagnostic suite including system
testing • Built-in printer for instant customer reports • Large 3.5" color
display for clear readings • 12V/24V coverage for most modern vehicles
The BT600 delivers the optimal balance of
professional features without unnecessary complexity. It handles approximately
95% of automotive battery testing scenarios while providing tangible reports
customers appreciate.
Perfect for: Professionals on a
budget Key advantages: • Includes essential built-in printer • Compact
2.4" color display • Full cranking and charging diagnostics • Lower price
point than feature-rich models
While the BT300P lacks system testing
capability, it retains core professional features at an accessible price. Ideal
for technicians who need reliable testing but don’t require advanced system
diagnostics.
Most Innovative: Topdon BT
MobileProS
Perfect for: Digital-first workshops Key
advantages: • TOPDON Phoenix app integration • Battery library for quick
reference • System and ripple testing capabilities • Ultra-portable
design
The MobileProS represents Topdon’s vision
for connected diagnostics. Technicians who already use tablets or smartphones in
their workflow will appreciate the seamless digital integration and data
management capabilities.
Frequently Asked Questions
Q: Which Topdon tester should I choose
for a busy auto repair shop? A: The BT600 provides the best balance
with its built-in printer, complete diagnostics, and clear display — ideal for
generating customer reports quickly.
Q: Which model supports 6V battery
testing? A: Only the BT600 Plus offers 6V capability, making it
unique for classic car restoration or specialty vehicle maintenance.
Q: Is the BT300P suitable for
professional use despite missing system testing? A: Yes, the BT300P
handles core battery, cranking, and charging tests effectively. Many workshops
find these functions sufficient for daily diagnostics.
Q: How does the MobileProS work without
a display? A: The MobileProS connects to your smartphone or tablet
via the TOPDON Phoenix app, using your device’s screen as the display
interface.
Q: What’s the difference between CCA and
CA testing? A: CCA tests at -18°C for cold weather performance, CA
at 0°C. Topdon models measure both, but prioritize CCA in colder climates.
Q: Do these testers work with modern
start-stop batteries? A: Yes, all support AGM/EFB batteries. BT600
and MobileProS offer more complete system diagnostics for start-stop
vehicles.
Final Decision Guide
Choose BT600 if: You need one reliable
tool for most vehicles with professional reporting capabilities
Choose BT300P if: Budget matters but you
still want printed results and core diagnostics
Choose MobileProS if: You prefer app-based
tools and digital record-keeping
Ready to choose?
Compare all Topdon testers at www.obdexpress.co.uk. Bulk order
discounts available — contact their team for expert configuration advice.
Features
and specifications may vary by region. Confirm details with your supplier before
purchase.
FormulaFLash
software was upgraded to V1.1.2.0, and released a powerful and unique software
package: One-click reading of ECU and TCu cs codes for VAG, specially designed
to simplify MQB all keys lost key programming.
This solution allows locksmiths to quickly
and reliably read CS codes directly from the ECU and TCU with just one
click — no complex procedures, and no time-consuming steps.
KEY BENEFITS - One-click
reading of ECU and TCU CS codes. - Designed specifically for VAG MQB all keys
lost scenarios. - Fast, safe, and user-friendly operation, Improves
programming success rate and saves valuable time.
This update supports the following models:
MED17/ EDC17/ DQ200/ DQ200-Gen2/ DQ250 MQB/ DQ250Fxx/ DQ400e.
