Frequently asked questions
What we get asked most about DiagZone licenses, T-Codes, payments and activation. If your question isn't here, message us on WhatsApp.
Compatibility
Which devices are compatible with DiagZone?
Thinkdiag 2 (serial 98843…), original Thinkdiag old boot (97986…), MUCAR BT200 / Thinkcar Pro / Thinksafe (98914…), DBScar 7 / eDiag Plus, Launch Easydiag, Golo and the X-431 family (PRO, PRO Mini, PRO5, PAD). Not compatible: serials with letters (e.g. 9TF…), BT200 MAX, Thinkdiag HML, DBScar VI and Easydiag 3.0 X-Diag. Use the serial number check to be sure.
Where do I find the serial number?
On the OBD2 connector's label (and on its box): 12 digits starting with 9.
What does "old boot" mean on the original Thinkdiag?
The original Thinkdiag comes in two internal versions: old boot and new boot. DiagZone only works on old boot units, and the serial number doesn't tell you which one you have. That's why we confirm it with you on WhatsApp before you pay.
Can I buy from my country?
Yes, if you can pay with PayPal or a card enabled for international purchases in your country. We chat on WhatsApp in English, Spanish and Portuguese, and charge in US dollars (USD). What decides whether the license fits is your connector's serial number: check it here.
Phone and vehicles
What phone or tablet do I need for DiagZone?
An Android 7 to 13 device with 2 GB of RAM or more and free space (about 16 GB for cars). On Android 14 or later it only works if the phone or tablet accepts 32-bit apps. It doesn't work on iPhone, iPad or computers.
Does DiagZone work on iPhone?
No. DiagZone is Android only. If you use an iPhone with a Thinkdiag or Thinkdiag 2, the right option is to renew the maker's own app with a T-Code.
Does it work on 24 V trucks?
Yes, with a 24-to-12 V converter for the connector. Without the converter the connector can be damaged.
Buying and paying
How do I pay?
With PayPal or a credit or debit card; in most countries you don't need a PayPal account. Prices are in US dollars (USD). See payment methods for details by country.
What currency do you charge in?
US dollars (USD). The amount in your currency shown on the site is an estimate: your bank applies its own exchange rate and may charge fees or taxes on foreign purchases.
Do you have coupons or discount codes?
We don't use coupons or promo codes: the price on our pricing page is the same for everyone. The 2-year license costs less per year.
Do I get a purchase receipt?
Yes. Every purchase comes with a receipt issued by Grupo Vasquez SpA.
Who is DiagPass?
DiagPass is a brand of Grupo Vasquez SpA, a Chilean company (tax ID 77.217.436-5). We are an independent reseller of digital licenses and codes for automotive scan tools. More on about us.
Activation
How long does activation take?
1 minute to 8 hours from when the payment clears. We'll let you know on WhatsApp. With DiagZone, activation is completed once you plug your connector into a vehicle and tell us.
What are your hours?
Every day, around the clock (24/7), on WhatsApp and by email. The activation time does not change: 1 minute to 8 hours from when the payment clears.
What do I get when I buy?
With DiagZone, your username and password, by WhatsApp and email. With a T-Code, the code. Either way, a purchase receipt.
What happens after I pay for a DiagZone license?
We send you your username and password. You open the app on your Android device and plug the connector into the vehicle: the connector runs a protocol test. When it finishes, you tell us on WhatsApp; we activate the license and confirm it. From then on you can download all the makes and the maintenance services.
How do I get the DiagZone app?
The app is for Android and isn't on Google Play. After your purchase we send you the steps on WhatsApp, along with your username and password.
Term and renewal
How long does the license last? Are there lifetime licenses?
It lasts 1 or 2 years, depending on the one you choose. We don't sell lifetime licenses. When it expires you can renew it.
Can I renew before it expires?
Renewals activate when the previous license expires. Message us a few days before and we'll have it ready for that day.
Can I move the license to another device?
No. The license is digital and tied to your connector's serial number; that's why we check it before payment.
T-Code
What is a T-Code?
It's a code that activates 1 year of software in the maker's own app for your Thinkdiag. You buy it once and enter it in that app.
T-Code or DiagZone?
A T-Code renews the maker's own app, which runs on iPhone and Android. DiagZone is a different app, Android only, covering cars, EVs and heavy-duty trucks. Note: if your adapter was already used with DiagZone, a T-Code won't work; in that case you renew DiagZone.
How do I know if my adapter was already used with DiagZone?
If you bought it new and have only used the maker's own app, it hasn't been used with DiagZone. If you bought it used or you're not sure, message us with the serial number before paying and we'll go over it with you.
Is the renewal also sold inside the maker's own app?
Yes. You can also buy the renewal inside the maker's own app. With DiagPass you pay in US dollars by card or PayPal and we chat with you on WhatsApp in English, Spanish or Portuguese.
Other brands
Do you have Autel renewals or licenses for Launch devices?
For Autel, we quote software update renewals by model. For compatible Launch devices, we quote a DiagZone license. Message us on WhatsApp with the model and serial number.