Free Lifetime Map Updates for Brand-New CMNAV Sat Navs Purchased Directly from cmnav.co.uk
Update Release Information:
Map updates are typically released once a year, although there is no fixed schedule. The timing depends on when new data is finalised by our mapping provider.
After the initial release, it can take an additional 2–3 weeks for all related content — such as speed cameras and points of interest — to be completed. We wait until all content is fully available before releasing update packs to avoid incomplete or unstable updates that may cause navigation issues.
Requirements to Perform Updates Yourself:
- A desktop or laptop computer running Microsoft Windows (macOS or other systems are not guaranteed to work).
- A stable internet connection — mobile data may be used, but please check your data plan for any limits or charges.
- A few spare hours and a bit of patience — updates are large and can take time.
How to Request an Update:
The fastest way is to email us at contact@cmnav.co.uk with one of the following:
- Your order number, full name, and first line of address, OR
- A clear photo of the original invoice is included with the product (also emailed to you at purchase).
This allows us to verify your purchase, confirm your model, and ensure we send the correct update files.
Important: Photos of the sat nav alone or screenshots of bank transactions cannot be accepted as proof of purchase, as they cannot be linked to a specific order in our system.
Update Process:
Once proof of purchase is verified and an update is available, we will email you a secure download link along with a step-by-step video tutorial. These guides are designed so that anyone, regardless of technical skill level, can successfully complete the update.
For Customers Without a Windows Computer Access or No Access to a Computer:
If you do not have access to a computer or internet connection, we can perform the update for you in-house. In this case:
- You must send the unit to us using a tracked postal service.
- The service charge is ÂŁ25, which includes the return postage from us back to you.
- If needed, we can provide a prepaid postage label, or you can pay directly at the post office.
Updates are typically performed only after the unit is received and inspected, unless otherwise agreed. This ensures that the correct files are applied and that the device is in working order before and after the update.
Please note:
- Failure to include proof of purchase will result in the update request being declined.
- Our updates are designed exclusively for CMNAV sat navs. Installing them on non-CMNAV devices may cause permanent damage, for which we cannot be held responsible.
- Unreasonable or abusive requests will be declined and may be reported if necessary.
Contact for Queries:
For questions, use the Help button at the bottom-right of the website to choose your preferred contact method. We aim to reply within 2 hours during working hours, but if we're not available, we will respond as soon as possible.
Disclaimer & Conditions:
C & M Navigation Systems provides Free Lifetime Map Updates as a goodwill benefit for customers who purchase brand-new CMNAV sat navs directly from our website.
- This policy does NOT apply to Certified Refurbished, open-box, or second-hand units, regardless of where they were purchased.
- We reserve the right to refuse or discontinue map updates without prior notice if there is evidence of:
- Fraudulent activity, such as false claims of purchase or ownership,
- Attempts to obtain files for competing commercial purposes, or
- Behaviour that is dishonest, abusive, threatening, or harassing towards our staff.
Free Lifetime Map Updates remain available for the life of the product model or until C & M Navigation Systems ceases trading. If a model is discontinued or if our business stops operating, this service will end.
Storage Limitations on Older Devices:
Map data grows each year as new roads and points of interest are added. Over time, this may exceed the internal storage capacity of some older or entry-level devices.
Options in this situation:
- Preloaded microSD card (£25) – Provides full European maps and ensures smooth performance.
- Reduced coverage – Install a smaller map set, such as only the UK, or UK + Western Europe, to fit within existing storage.
We can help you determine which solution is best for your specific model.
Final Notes:
Free Lifetime Map Updates are a complimentary service tied to the original purchase. Abuse of this service, including repeated false claims, fraudulent activity, or harassment, will result in permanent withdrawal of eligibility and may be reported to relevant authorities such as Action Fraud or Royal Mail Security Investigations.
C & M Navigation Systems Team
Last Updated: 24 June 2025