What does 'Erase all content and settings' on an iPhone do exactly?
While most of the other answers already explain the results rather effectively, I wanted to add a bit of technical info to the mix….Technically, what the Erase all content and settings option does under the hood is destroy the encryption keys that are used to encrypt ALL data stored on the iPhone, iPad, or iPod touch. The data remains on the device, but it’s rendered completely inaccessible as it’s encrypted and the keys used to encrypt that data have been permanently and securely erased.From page 10 of Apple’s iOS Security Guide:[1]The “Erase all content and settings” option in Settings obliterates all the keys in Effaceable Storage, rendering all user data on the device cryptographically inaccessible. Therefore, it’s an ideal way to be sure all personal information is removed from a device before giving it to somebody else or returning it for service. Important: Do not use the “Erase all content and settings” option until the device has been backed up, as there is no way to recover the erased data.This is actually an important distinction, as it explains how an iOS device can be securely erased in a matter of seconds. Anybody who has ever tried to “secure wipe” a hard drive knows that it can take quite a bit of time for your computer to go through the entire hard drive and write over the data several times, block by block. In fact, prior to iOS 3.0 and the iPhone 3GS — the first iPhone that included hardware encryption — the Erase all content and settings option used to take a couple of hours to go through your entire flash storage and erase the data block by block.Hardware encryption was introduced to make “remote wipe” more effective as a realistic security option. After all, if somebody was really trying to get access to your data, a remote wipe that takes a couple of hours to securely erase everything on your device would not truly be a secure option — an investigator or identity thief could disassemble the device, cut power, and remove the flash storage chips before the processor could erase all of the data, and then use forensic tools to read the data from the flash storage directly.Footnotes[1] https://www.apple.com/business/d...
How can I unlock my phone at home when I forgot the password?
Hi, There are numerous ways to unlock the phone after forgetting the password. The following website details the different options available for Android phones only. http://visihow.com/Recover_Andro...You can also try to search via Google Search. Using voice or text just ask Google - "how to unlock my phone" or "I've forgotten my password" or something similar. Peace ✌
Why can't I delete my messages on Snapchat?
First off, I'd avoid using any 3rd party apps with Snapchat, *especially* any that ask you for your SC name and password. They can likely get your account blocked. On to the question. Messages will remain present in Snapchat for 2 reasons: either you tapped it or the other Person tapped it. If by any chance, you've used snapchat on multiple devices (like phone and tablet), it's possible you may have tapped a message on the other device. It's always worth checking, if you have a pesky message that won't go away. The tricky part is if the other person has saved the message and you want to delete it. Often, If you ask them, they'll "untap" it for you. But in the event that they don't, blocking them will remove the conversation from your list, and remove the messages as well. Hope that helps!Snapchat: Decalex
What are some cool WhatsApp tricks?
You need a spare SIM Card for this.If you think you are addicted or wish to go off WhatsApp for sometime without deleting your account or using the 'Change number' option available on WhatsApp (because this notifies all groups that you are a member of) or uninstalling , follow the steps below -1. Go to Settings >> Applications >> WhatsApp >> Clear dataNow you are logged out of WhatsApp without uninstalling the application and nobody is notified about this. Also, you stop getting any new notification messages.2. Now sign in using your new SIM number. Insert the spare SIM card you have in another phone for sometime (to receive one time verification code).WhatsApp will first try to auto verify your number. Since that will fail, as you are signing in with a different SIM number, it will ask you to enter the verification code. Enter the code you receive on the new number (you will receive a text message or call)Once the verification and initialization is done - You have a new WhatsApp account on the same phone You have all your contacts No groups (:D) without being rude Nobody has been notified about this. You didn't have to uninstall WhatsApp. And you still have your old account with all the groups too. You still get to use your other number for everything else except WhatsAppSo you can now carefully choose whom you want to share this number with and keep your notifications limited. You can also recharge this new SIM and keep it as spare for emergencies. Most importantly - You can now switch between these two WhatsApp accounts on this device anytime you want without verification code (WhatsApp asks for it only once for a new device)This trick is particularly useful if you think you are addicted and want to limit your usage or you have exams or something important coming up. Now you can keep WhatsApp communication open to few people without being rude to others.