No, you cannot reliably or legally copy modern car key fobs using an MSR605 without the original key present. The MSR605 is a magnetic stripe reader/writer, designed for low-security applications like old hotel keys or basic access cards. Modern vehicle security systems use advanced technologies like RFID (Radio-Frequency Identification) and rolling codes that the MSR605 is completely incapable of interacting with. Even if a car used a magnetic stripe (which none do today), the device requires the original card to be swiped through it to read and copy the data.
Attempting this is not just technically impractical; it raises significant legal and security concerns. Copying a car key without the owner's explicit permission is illegal, constituting theft or preparation for theft. Modern keys are complex electronic devices paired to a specific vehicle's immobilizer system. Simply duplicating a magnetic signal, if it were possible, would not bypass these sophisticated security layers.
Here’s a quick comparison of why the MSR605 is the wrong tool for the job:
| Security Feature | MSR605 Capability | Modern Car Key Reality |
|---|
| Data Storage | Magnetic Stripe (low capacity) | Encrypted RFID Chip (high capacity) |
| Authentication | Static Data (easy to copy) | Rolling Code (changes each use) |
| Immobilizer Bypass | Impossible | Required for engine start |
| Primary Use Case | Basic Access Cards, Gift Cards | Vehicle Security and Ignition |
The only legitimate way to get a replacement key is through a dealership or a qualified locksmith who can use specialized diagnostic tools to program a new transponder key directly to your car's ECU, verifying you are the legitimate owner.
