In one sentence, describe what the following article is about: Contact the carrier you want to switch to for a new SIM card. Shut down your phone as you normally would. Depending on which device you're using, the SIM card will be in a slot on the side of the case, under the back cover, or under the battery. Different phones require different methods for removing and replacing a SIM card. Learn to remove and replace your SIM card on wikiHow. Insert the SIM card from your new carrier into the slot. Instead of your normal home screen, you'll get a notification that your phone needs to be unlocked before it can use the installed SIM card. Use the keypad to type in the code you got from the TracFone representative. You'll see a confirmation message confirming that the code has been accepted. Now you can use your Android phone with your new carrier.
Summary: Get a SIM card. Power off the device. Remove the TracFone SIM card. Replace the SIM card. Power on your phone. Enter the unlock code. Press OK.

In one sentence, describe what the following article is about: The most expensive option for viewing under a door, telescoping or "snake" cameras can be purchased. They come in a few varieties, with some being reserved for more professional uses. The cheapest among the telescoping cameras are the camera kits that plug directly into your cell phone. These can be purchased online and at some retail stores such as Walmart. The exact nature of these applications will vary from product to product. Make sure you read the specifications of the camera and its application to make sure your cell phone is compatible. Some are specially made to work with certain operating systems, while others will only work with certain models of cameras. Most snake cameras are made from a material that allows the camera to be angled in various directions. Maneuver the camera as desired and begin shooting. If the camera wire is too flimsy to navigate effectively, try connecting it to a coat hanger or other pliable wire, and snake it under the door. Such cameras shoot in a small area, or use a macro lens. You'll be able to see much of the room, but the image will be distorted or somewhat blurry compared to a normal camera.
Summary: Purchase a telescoping camera. Install the camera application. Snake the camera under the door and turn it on.

In one sentence, describe what the following article is about: You should only use an unlocking service if your carrier refuses to unlock your phone. Reputable services include "Free Unlocks" and "CellServices (around $20), as well as UnlockBase (around $10). This menu contains information about your carrier (e.g., Verizon or Sprint), your phone model number, and your IMEI number. The unlock service will need this International Mobile Equipment Identity (IMEI) number in order to issue a code to you. The unlock service should not ask you for personal information such as your home address. You may have to enter your phone number and name as it appears on your contract. Most unlocking services support PayPal--your most secure option--in addition to standard Visa cards. If you want to use PayPal but don't have an account, set one up for this transaction. Most services will send you your code within an hour, though some take as long as three business days. Most unlock services will tell you approximately how long you'll be waiting for the unlock code on their website. You will need to enter this number into your phone after installing a new SIM. To activate the unlock code input, you'll need to replace the current SIM. You can find SIM cards at their respective carrier stores (e.g., a Sprint SIM card would come from a Sprint store). Turning off your phone will prevent the SIM card from being damaged when you remove it. It should be located on the side of your phone, on the same side as the Power button. The SIM card tray should slide out. Your card removal tool should have come with your phone, but you can also (gently) use a bent paper clip for this step. Your service provider can also open your SIM slot for you. Set it aside in a safe place, such as a plastic bag. It should only fit one way, with the gold strips pointing down (away from the screen side of the phone). This should turn your phone back on. Your phone may reboot after this point. If you switched from AT&T to Verizon, for example, the service provider name in the information bar at the top of your screen should say "Verizon" instead of "AT&T".
Summary:
Ask your carrier if your phone is eligible for a free unlock. Search for "HTC phone unlocking service". Open your "Settings" menu. Select the "About Phone" tab, then open "Phone Identity". Scroll down to find your IMEI number, then write it down. Enter your IMEI number and email address into the unlock service's site. Purchase your code using a secure payment method. Check your email for an unlock code. When you receive your unlock code, write it down. Purchase a SIM card for your new network. Hold down the power button, then select the "power down" option. Find the SIM card access slot. Insert your card removal tool into the hole next to the slot. Remove the old SIM card from the tray. Insert your new SIM card into the tray. Hold down the power button. If you have a SIM pin number, enter it now. Enter your unlock code. Confirm that your unlock was successful.