If you have a PSP 2000, you need to check if it has a TA-088v3 motherboard.
The PSP's firmware was updated regularly by Sony to add new features, fix bugs, and improve security. However, as the PSP aged, the updates became less frequent, and the device's capabilities began to feel limited. In response, a community of developers and enthusiasts created custom firmware (CFW) for the PSP, which allowed users to install and run unauthorized software, including homebrew applications and games. psp 6.61 custom firmware