Before proceeding, confirm the following:
If the above fails: Try Win + B or Fn + Esc. Check your specific CLEVO maintenance manual (search for “Crisis Disk”). clevo laptop bios update
| Symptom | Possible Action |
|---------|----------------|
| Black screen after flash | Remove CMOS battery for 10 min, then retry blind flash via USB+key combo (see Clevo recovery method). |
| BIOS boot loop | Use recovery jumper on mainboard (requires disassembly). |
| EC version mismatch | Re-flash EC separately (often included in same package as ecflash.exe). | Before proceeding, confirm the following: If the above
If a reseller has gone out of business or the laptop is an older model, generic drivers can be found on the official Clevo Service Portal (clevodriver.com). | | BIOS boot loop | Use recovery
BIOS flashing is sensitive to power loss and system instability.
| Model | Verdict | |--------------|-----------------------------------------------------------------------| | P870TM | Update recommended – fixes PCIe SSD boot issues. | | NH5x | Mixed – newer BIOS locks undervolting. Stay on original if happy. | | PB51 | Helps with USB-C PD stability. | | L140CU | Avoid 1.07.05 – breaks S3 sleep. | | X170SM | Update required for RTX 30-series MXM support. |