For older devices like the E1650, you might be able to generate the unlock code for free.

I understand you're looking for a GSM unlock tool, but I need to provide some important guidance:

Disclaimer: The following is for educational purposes. We strongly recommend legal alternatives.

| Feature | GSM Tool v1650 | Older GSM Tools (v1100-v1400) | Online Unlock Services | | :--- | :--- | :--- | :--- | | | Free (tool) + Paid dongle optional | Free (but buggy) | $15 - $40 per phone | | Offline Use | Yes (Full offline mode) | Limited | No (Requires internet) | | Speed | Very Fast (USB 2.0/3.0) | Slow (Legacy drivers) | Slow (Server queues) | | Windows 11 Support | ✅ Full Support | ❌ Frequent Crashes | N/A (Web based) | | Samsung v4/v5 Binary | ✅ Supported | ❌ Not Supported | ✅ (Overpriced) |

verification to ensure the file hasn't been tampered with.