Hi There!
Can someone advice me on how to download cydia on iPhone? I'm kinda new on this stuff and i want to download bigU movies to watch it on my iPhone.
Yes I have an idea how to download bigU movie on your iPhone for free. If you have cydia on your phone, download it via cydia and the download is for free.
Yes it's safe to jailbreak the iPhone. Jailbreaking doesn't hurt in any way possible the iPhone, but the apps or tweaks you will install on the phone from cydia can/may have influences on the performance of the iPhone.