If such code did work on all devices, why would cell phone companies keep such functionality a secret? Does the *3370# Code Boost Cell Signal? They do not work on iPhones, Samsungs, Google Pixels, LGs, or any other iOS and Android devices. These codes only work on specific Nokia phones. This mode provides about 30% more talk time on a battery charge at the expense of lower sound quality. If the goal is to improve battery life, then you would want to enable Half Rate Codec by pressing the *#4720# keys. EFR mode improved sound quality at the expense of shorter battery life, which is the exact opposite of the claim. Pressing *3370# activated the Enhanced Full Rate Codec (EFR). One mode enhanced voice transmission, while the other enhanced battery performance. Some Nokia phones had the ability to switch to a different mode after the user punched in a “secret code”. The hidden battery claim originated from Nokia phones. No, pressing the *3370# keys on your Apple or Android device does not improve cell phone battery life. Does the *3370# Code Improve Battery Life? But, with so many people sharing the information, it evolved into a secret code that boosts cell phone signal strength. The original intent of this tip was to inform people on how to improve their phone’s battery life. The secret battery reserve will automatically charge the next time your device is charged. What instrument are they talking about? No clue, I’m assuming they mean the battery logo. So, if you ever find yourself with very low battery and without a charger at hand, simply press the *3370# keys to activate the secret battery reserve.Īfter pressing the keys, the phone will restart and the instrument on your device will show a 50% increase in battery. How exactly does it work and how was it misinterpreted? What is *3370# and What Does it Do?Īccording to the email, the secret *3370# code is supposed to improve your phone's battery life. Visit to check out the complete email.Īs mentioned, out of the 5 tips, the one that blew up the most was the secret *3370# or #3370# code. However, cellular providers might still charge for such calls. To avoid 411 information call charges, dial (800)-FREE411 or (800)373-3411.įREE411 provides directory information at no charge. Unfortunately, cell phone companies charge users for using the 411-information option. Since not everybody has a telephone directory handy, people usually call 411 for information. They’ll be able to help you make the device unusable. All you must do is give your service provider your account information and tell them the phone was stolen. Besides, YOU don’t need the IMEI handy to disable your stolen phone. They will block the phone and the thief will not be able to activate it with a different company's SIM card or sell it.ĭialing *#06# only works on some devices. If your device is ever lost or stolen, call your service provider to report the device and give them the IMEI number. Disable a Stolen Phoneĭial *#06# to see your mobile phone’s serial number – a 15-digit code that is unique to your handset (also known as IMEI or MEID) – and write it down. This is the most popular tip out of all, and the focus of this article. Other claims state dialing the same sequence will boost cellular reception. The reserve will automatically charge up the next time you change your device. Hidden Battery Power / Boost Signal Strengthīy pressing *3370# or #3370#, you’ll activate your phone’s “reserve battery power”. To work, your key fob must be within range of your vehicle. Those radio signals can’t be effectively relayed through a phone call. RKE systems use radio signals to lock or unlock vehicles. That is simply not how cars with remote keyless entry systems work. Hold your phone about a foot from the car door and have the other person press the unlock button near their cell phone to successfully unlock the car. If you lost or locked your keys inside your car, call someone that has access to the spare. Those with remote keyless entry (RKE) can unlock their vehicle through a cell phone. So, if you're in the US, you're better off just dialing 911. If dialing 112, some US cellular carriers may forward the call to 911. 911 works the same way in the United States. Dialing the number in those countries will connect you to emergency services, even outside your carrier's service area. Dialing the number allows the phone to search for any existing network to connect your call with local emergency services.ġ12 is the European emergency number. If you find yourself out of your mobile network's coverage area during an emergency, you should dial 112. Check out the things your phone can do: 112 is The Emergency Service Number Worldwide During times of grave emergencies, your mobile device can be a lifesaver or an emergency tool for survival.
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