FAQ

Frequently Asked Questions

Last Updated: April 13, 2026

Orders & Payments

1. How do I place an order?

Simply browse our products, add your desired items to the cart, and proceed to checkout. Follow the prompts to enter your shipping and payment information. You'll receive an order confirmation email once your order is successfully placed.

2. What payment methods do you accept?

We accept major credit cards (Visa, Mastercard, American Express) and PayPal. All payments are processed securely through Shopify's payment system.

3. How do I know if my order has been confirmed?

After placing your order, you will receive a confirmation email with your order number and details. If you don't receive this email within an hour, please check your spam folder or contact us at aotdiagx@outlook.com.

4. Can I change or cancel my order after placing it?

Please contact us immediately at aotdiagx@outlook.com if you need to change or cancel your order. Once your order has been processed for shipping, we may not be able to make changes.

Shipping & Delivery

5. How long does it take to process my order?

Orders are processed within 6–10 calendar days (including weekends and holidays).

6. How long does shipping take?



Shipping Method Delivery Time
Standard Shipping 6–10 calendar days

7. How much does shipping cost?

Standard shipping is $9.99. Orders over $89.99 qualify for free shipping.

8. Do you ship internationally?

Currently, we ship to addresses within the United States. For international shipping inquiries, please contact us directly.

9. How can I track my order?

Once your order has shipped, you will receive a confirmation email with a tracking number. You can track your package on the USPS website using this number.

10. What should I do if my package is lost or damaged?

If your package is lost or arrives damaged, please contact us immediately at aotdiagx@outlook.com. We will assist you in filing a claim with the carrier.

Returns & Refunds

11. What is your return policy?

We offer a 30-day return policy. You may return items within 30 days of receiving your order, provided they are unused, with tags, and in their original packaging. Please contact us at aotdiagx@outlook.com to initiate a return.

12. How do I return an item?

To start a return, please email us at aotdiagx@outlook.com with your order number and reason for return. If approved, we will provide you with a return shipping label and instructions.

13. How long does it take to receive a refund?

Once we receive and inspect your return, we will notify you of approval. Approved refunds will be processed within 10 business days to your original payment method.

14. What items are non-returnable?

Certain items cannot be returned, including:

  • Custom or personalized products

  • Hazardous materials or flammable liquids

  • Gift cards

If you're unsure about your item, please contact us before purchasing.

Product Support

15. Do your diagnostic tools work with my car?

Our diagnostic tools support a wide range of vehicle makes and models. For specific compatibility questions, please send us your VIN and the functions you need, and we will confirm compatibility before you purchase.

16. Does the tool come with OE software?

OE software is not included and must be purchased separately. Please refer to the Quick Start Guide included with your product for download and purchase instructions.

17. Do I need to pay extra for drivers?

No. Drivers for supported vehicles are included at no extra cost. You can download the latest drivers from the RLink platform and receive lifetime free updates.

18. I'm having trouble installing the driver. What should I do?

Driver installation issues are typically caused by antivirus software or interference from other device drivers. Try:

  1. Fully disabling your antivirus software before installing

  2. Temporarily unplugging any non-essential hardware

  3. Restarting your computer and retrying the installation

If problems persist, please contact us at aotdiagx@outlook.com.

19. Does the tool support TPMS sensor activation?

No. This function is not supported on the AD900 Lite. Please check product specifications before purchasing.

20. How do I get software updates?

Connect your device to WiFi and use the one-touch update feature. We provide free lifetime updates to ensure compatibility with the latest vehicle models.

Account & Security

21. Do I need to create an account to place an order?

No. You can checkout as a guest. However, creating an account allows you to track orders, save addresses, and view your order history.

22. Is my payment information secure?

Yes. All payments are processed through Shopify's secure payment system. We do not store your credit card information on our servers.

Still Have Questions?

If you didn't find the answer you're looking for, please contact us:

📧 Email: aotdiagx@outlook.com

We typically respond within 24 hours (Monday–Friday).

AoTDiagX – Professional Diagnostics Made Simple.