| Symptom | Frequency | Likely Cause | |---------|-----------|----------------| | Black screen after launch | High | Missing or incorrect signature patches | | Error 2155-8007 | Medium | Missing title key or corrupted ticket | | “Unable to start software” | Medium | Firmware incompatibility | | Stuck on Nintendo/Switch logo | Low | Bad NSP dump or SD card corruption | | Audio but no video | Low | Resolution mismatch or GPU driver quirk |
If you are experiencing errors such as "software closed because an error occurred" or "Nintendo Account is required" while using an NSP file, the following steps are common community solutions: Update Signature Patches (Sigpatches): super bear adventure rom nsp switch game fix