General improvements across all updates:
This step varies by model:
| Model | Update mode method | |--------|-------------------| | XLIM (original) | Hold fire button while connecting USB to PC | | XLIM V2 / Pro | Hold fire + up button while connecting USB | | XLIM SQ | Hold fire button + connect USB (screen stays off) | oxva xlim firmware update
You should see a blank screen or “USB” / “DFU” on display (some models show nothing). General improvements across all updates: This step varies
| Error Message | Likely Cause | Solution |
| :--- | :--- | :--- |
| "No device found" | Data cable issue or driver missing | Try a different USB-C cable (preferably short, from an external SSD or laptop charger that transfers data). Install Oxva’s CP210x drivers. |
| "Checksum mismatch" | Corrupted download | Delete the .bin file, clear browser cache, re-download from Oxva official. |
| Device stuck on boot logo after update | Interrupted flash | Hold fire button for 20 seconds to force a hard reset. If that fails, repeat the update process from Step 1. |
| Update tool crashes at 50% | Windows USB power management | Go to Device Manager → USB Root Hub → Properties → Power Management → Uncheck "Allow computer to turn off this device." | | Error Message | Likely Cause | Solution
On most XLIM models: Press fire button 3 times quickly to enter menu → navigate to Version or Ver to see the new firmware number.