| Error | Cause | Solution | | :--- | :--- | :--- | | | USB not FAT32 or corrupted. | Reformat USB to FAT32. Try a different brand (Kingston/SanDisk). | | "Signature verification failed" | Firmware is unofficial or for wrong device. | Find the original CANTV signed firmware . Disable signature check if in custom recovery. | | Update stops at 20% / 49% | Power fluctuation or bad USB port. | Use the rear USB port. Plug decoder directly into wall outlet (no power strip). | | Stuck on CANTV logo after update | Bootloader mismatch. | Repeat the process. If fails, you need the USB Burning Tool (PC method) using a male-to-male USB cable. | | Remote control stops working | IR driver changed. | Unpair and re-pair. For IR, restart the decoder. |

Si tu decodificador CANTV NL-S3601 presenta fallas críticas que impiden su uso normal, . Actualizar por USB es el método más controlado y efectivo, incluso más que la actualización automática. Sin embargo, requiere paciencia y atención al detalle.