plss help me my sister iphone was stolen last april 3 she did not open the find my iphone..what will we do to locate or to block the stolen iphone plss help us

If she didn't have Find My iPhone turned on before she lost it, there is no way to electronically locate it. The following has some other suggestions such as changing passwords, etc. If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support

@kathrina wrote:

i need your help my sister iphone was stolen in our house last april she din not open the find my phone what will can i do to locate the stollen phone or if evee we dedided to block it plss help us

iphone stolen, find my iphone disabled, now what?

if find my iphone wasn't set up, then there is no way to track it online.

Blocking is done by you carrier, if supported.

It is too late to use Find My iPhone.

Apple - Find My iPhone, iPad, Mac, and Apple Watch - http://www.apple.com/icloud/find-my-iphone.html and: iCloud: Find My iPhone overview - http://support.apple.com/kb/PH2696

The following conditions ALL have to be met:

1) You have the "Find My" activated BEFORE you lose the device.

2) The device is turned on and for cellular connection has a SIM card installed.

3) The device is able to connect to a registered wifi connection (iPad, iPhone, iPod Touch, Mac) or data network (iPhone, iPad with cellular).

4) The device was not restored by a finder of the device (if it was really stolen then the thief has probably restored it unless activation lock is active).

iCloud: Locate your device - https://support.apple.com/kb/PH2698- "If Find My iPhone can’t locate the device, the last known location is displayed for up to 24 hours. "

iCloud: Lock and track your device using Lost Mode - http://support.apple.com/kb/PH2700 - also how to unlock

See the last paragraph in the "Change your passcode or passcode settings": section of:

Use a passcode with your iPhone, iPad, or iPod touch - Apple Support

The bottom line is that if a finger print is not recognized, then the iPhone asks for a passcode (that your sister must also have setup). If she set the option to erase the iPhone after 10 failed attempts, then she should be OK. Otherwise a "computer technician" can keep guessing until the iPhone unlocks. That will allow some limited access to the data that is not protected by the Apple ID (since she changed that password).

The real bottom line is next time setup FindMyiPhone.

If she did not have Find My iPhone enabled on the device, they can erase the device using iTunes and set it up to use for themselves. Contact your cellular carrier and cancel the service on the SIM before they rack up a ridiculous phone bill.

Nothing online if it was not configure to FindMyiPhone on iCloud beside look for it.