I tried updating my ps3

Question

I tried updating my ps3 to the recent 2.36 update, it downloaded, and i agreed with the terms and everything. When it was time for installing the download, it stops at 29 percent, and teling me that there was an error. The code was (8002F157). So what does that mean, and how can i fix my ps3, since now when i restart it, it just goes back to updating the intall, but stops everytime at 29%?