Veronica wants to know if keeping her phone in Airplane Mode will expose her to less radiation. Leo says yes, it would. Can she also use Wi-Fi calling? Leo says it's better, but there's no evidence that it will or won't be harmful. The radiation would come from the cell phone radio, not the Wi-Fi. Using headphones instead of putting her phone up to her ear is also better.
Neil traded up his iPhone 8 Plus to the iPhone X, and he wants to know if Wi-Fi calling is a good idea. Should he turn it on? Leo says that the cell carriers would like him to use it if they support it. It doesn't use their towers, eliminating congestion, and they can still charge him for usage. Would it be of any benefit to Neil? Leo says not really. Quality will vary and if he has a poor connection, that could be an issue.
Scott uses a Windows phone and he can't use a device tracker. So he's looking to get an Android phone to use for it. Would that work without a cell network? Leo says that since it uses bluetooth, it wouldn't need one. Any bluetooth device that runs iOS or Android software will work, but it's limited to about 100 feet. Check out Gear Eye - http://www.doddlenews.com/blogs/kickstarter-geareye-makes-easier-indies-...
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Ed is looking for a strong and cheap cell phone cover. Leo uses a $10 case from Ringke. They always fit and it's cheap. Leo uses a "shell" case on his Android phone. If Ed has issues dropping it, then Leo recommends the Otterbox.
Keetahn wants to know if he can hardwire a speaker to his cell phone that will let people hear the phone ringing in another room. Leo says that a Bluetooth speaker would be ideal, but the problem is that it can lose connectivity and would need re-pairing. Leo says the best is a base station corded phone that he can pair with his cell phone service.
Clarence just let go of his Samsung Galaxy S3 because the microUSB port was loose and it wouldn't charge. So it's time to get a new phone. He can pick up a Samsung Galaxy S 5 or a Note 4. Leo says that the Note 4 is a great phone and that's the one to get. He can get a charger cover that supports Qi. It's a great charger. Should he "Frankenstein" a system together and DIY it? Leo says he could. He did that on the Note 3, but the negative is that it makes it harder to remove and replace the battery.
Bob wants to know if he can extend his Wi-Fi with a wired connection, rather than a wireless connection. Leo says sure. The trick is that while he can use any router, that router must be put into bridge mode. Don't let it do any routing. Just have the signal pass it along.
Steve needs to upgrade from his old BlackBerry and he wants to know how he can export and save his text messages. Leo says it's possible to save text messages via SIM, but the SIM is very small. He could back up the text messages with the BlackBerry software, as well as third party solutions, but whether they will be legally viable after that is another story. Which is why Leo would recommend keeping the phone and sim as is and get a new SIM for the new phone.
Jeff is worried that using a cell phone is dangerous because of electromagnetic radiation. Leo says that there's no evidence at all that one could get brain cancer from a cell phone.The theory is sensible because electromagnetic radition can damage human cells, but it's in proportion to power output and cell phones are just too low power to do that. People don't really use smart phones as actual phones anymore, anyway. They use them as handheld computers.
Ed thinks his HTC One Android phone has been hacked. Can it be tracked? Leo says that every cellphone made is trackable. In order to use a cellphone, he has to connect to a tower, so it's able to triangulate his position at any given moment. If he's worried about that, then he shouldn't have a cell phone.