(major rivers in the south, such as the Wouri and the Sanaga, are largely non-navigable; in the north, the Benue, which connects through Nigeria to the Niger River, is navigable in the rainy season only to the port of Garoua) (2010).4,725 km (18,300 km navigable; the most important waterway, the River Magdalena, of which 1,488 km is navigable, is dredged regularly to ensure safe passage of cargo vessels and container barges) (2012). Congo, Democratic Republic of the.
Latest Version: 4.55. An update to the PlayStationÂ®4 system software was released on April 11, 2017. Use this update to install system software version 4.55. Always update your PS4â¢ system to the latest version of the system software. By updating, you can enjoy additional features, improved usability, and enhanced security.
1 If you download the update file from the Sony website, copy it to the PSP by connecting the PSP to your computer. 2  Copy the file into the PSP/GAME/UPDATE/ folder and then run the update file from the PSP. 3  To copy files onto a PSP, you will need to put your PSP into USB mode.ou can either use the system update function, or download the file directly from the | Sony site. 1  If you download the update file from the Sony website, copy it to the PSP by connecting the PSP to your computer. 2  To copy files onto a PSP, you will need to put your PSP into USB mode. 3  5 Edit step.