These are some of the reasons that lead you to want to perform a reset, format, hard reset or factory reset of your Apple iPhone 4 CDMA:
— My Apple iPhone 4 CDMA works very slow and I want to format it.
— I have forgotten my Apple iPhone 4 CDMA unlock pattern or screen unlock PIN code.
— The Apple iPhone 4 CDMA is hung or frozen.
— My Apple iPhone 4 CDMA does not have enough storage space to install applications.
— Clear all information from Apple iPhone 4 CDMA before selling or giving it away.
— Restore to factory settings my Apple iPhone 4 CDMA
— My Apple iPhone 4 CDMA has trouble picking up calls.
Click the following link to see instructions on resetting Apple iPhone 4 CDMA
Before doing a hard reset or formatting you should know that all the data and configuration of your Apple iPhone 4 CDMA will be erased and will be back as it came from the factory.
Doing a format should not involve any risk for your Apple iPhone 4 CDMA, however you must follow all the steps correctly, the Apple must have the battery fully charged and if possible it must be connected to the charger.
If something fails during the reset in most cases starting from the beginning and following the steps, the problem is usually corrected and the process completed correctly, but there is always a risk when performing a hard reset that depends on the state of the terminal and you must assess If you want to assume it or if you prefer to take your iPhone 4 CDMA to a professional.
Doing a hard reset or formatting of Apple iPhone 4 CDMA will erase all data that has been stored since the first moment iPhone 4 CDMA was launched.
That is, all the applications that have been installed will be deleted (applications that are pre-installed in the terminal will not be deleted), any configuration or customization of the terminal will be deleted.
Your Apple will be unlinked from all social media accounts and services such as Google, Facebook, Instagram, mail or iTunes.
All chat conversations, messages, photos, videos, audios and files that were downloaded while using your Apple iPhone 4 CDMA will be deleted.
All this data will be deleted from the Apple iPhone 4 CDMA but if you have it linked to a cloud backup (iCloud, Google Drive) when you link your account to a new device and connect it via Wi-Fi all the data of the backup will be downloaded including the messages, chats, photos, videos, multimedia and browsing history.
First of all, we recommend that you make a backup copy of all your Apple iPhone 4 CDMA data either through a computer by connecting the iPhone 4 CDMA via a cable and copying all the data through the file browser or a dedicated copy program security, using an SD card or the simplest method by backing up the cloud through a Google Drive, Microsoft One, Apple iCloud, Dropbox or Amazon Drive account.
Secondly, make sure that your Apple has at least 800attery power and if possible keep it connected to the charger and the power while performing the reset tasks.
If you have forgotten the PIN code of your Apple iPhone 4 CDMA SIM card, do not enter the wrong code more than twice or you will block the SIM card. A hard reset will not take effect in this case, the only solution is to look for the PUK code that you must have on the plastic card where your SIM card came from, in case you cannot find it, contact your telephone company to provide you with the PUK code, With this code you can create a new PIN code. Do not enter a wrong PUK code or the SIM card will be unusable and you will have to request a new one from your telephone company.
The frequencies or bands of mobile telephony used in the United States are the following:
2G/GSM: GSM 850 MHz, GSM 1900 MHz.
3G/WCDMA: UMTS 850 MHz, UMTS 1900 MHz, UMTS 1700 MHz, UMTS 2100 MHz.
4G/LTE: LTE 700 MHz, LTE 800 MHz, LTE 1700 MHz, LTE 1900 MHz, LTE 2100 MHz, LTE WCS 2300 MHz (30), LTE 2500 MHz.
5G: 3100 – 3550 MHz (and 3700 – 4200 MHz).
The Apple iPhone 4 CDMA has a 2G connectivity: CDMA 800 / 1900
A 3G connectivity: CDMA2000 1xEV-DO
4G / LTE connectivity:
The frequencies or bands of cellular telephony used in the United Kingdom are the following:2G/GSM: GSM 900 MHz, GSM 1800 MHz.
You can check if the Apple iPhone 4 CDMA works in the United Kingdom since it has a connectivity 2G: CDMA 800 / 1900
A 3G connectivity: CDMA2000 1xEV-DO
4G / LTE connectivity:
On iOS devices like the Apple iPhone 4 CDMA it is possible to quickly access emergency contacts without having to unlock the terminal, set the option to make a call automatically and to send an emergency message to one or more contacts with the current location.
You must first configure in your Apple iPhone 4 CDMA emergency calls, for this you must go to the device settings and click on “SOS Emergency”.
Within this section you must configure the emergency contacts that you want to appear when activating the emergency call. You can also define your medical information so in the event of an accident, anyone who accesses your Apple iPhone 4 CDMA can know your name and important information such as allergies to medications or medical conditions.
Once configured to perform the emergency call function, you must press the power key five times in a row, in case this option does not work on the lock screen, the emergency text should appear at the bottom, click on the word “Emergency” and you will be able to access emergency contacts and medical data.
Keep your Apple iPhone 4 CDMA updated it is very important especially to receive the latest corrections in security and to receive the latest news of the operating system as well as improvements in speed and battery performance.
Before updating the Apple iPhone 4 CDMA make sure you have a fully charged battery and be connected to a Wi-Fi network, since a large amount of data must be downloaded.
To update your Apple iPhone 4 CDMA you must go to Settings, this is the gear icon on the home screen of your Apple, click on “General” and then on “Software update”.
You can check if you have automatic updates activated in your Apple iPhone 4 CDMA and check if there are new updates. The Apple iPhone 4 CDMA comes with the operating system iOS 4| upgradable to iOS 7.1.1.
Step-by-step instructions to update Apple iPhone 4 CDMA.
To make a backup of your Apple iPhone 4 CDMA there are several methods.
The most economical method is to connect the Apple iPhone 4 CDMA to a computer using the USB cable and make a copy of the files using iTunes.
If the message appears “Trust this computer?” or the device asks for the code, follow the steps on the screen.
On Mac computers you can make a full backup from Finder, in Windows you must have iTunes installed.
To perform a cloud backup the native method of Apple and integrated into the operating system is iCloud, you have 5Gb to make backups in the cloud for free.
To configure the backup in iCloud access the settings of the Apple iPhone 4 CDMA, this is the gear icon, click on “General” and then on your name at the top of the screen, then click on “iCloud” you can select which data and which apps allow you to save a backup of your data in the cloud.
If the free 5Gb of iCloud is not enough to copy all the photos and videos available on your Apple iPhone 4 CDMA you can use the application Google Drive that you can download from the Apple App Store, you will have 15Gb free.
If your Apple iPhone 4 CDMA it does not turn on you must follow a series of recommendations to check what the problem is:
First connect the Apple iPhone 4 CDMA to the charger and to the electric current to rule out that it is a problem of lack of battery. If after one hour of charging the Apple still does not turn on, proceed to the following recommendation.
Try to make a factory reset, you will lose all the data in the Apple iPhone 4 CDMA but you can recover them later through the iCloud backup.
If the Apple iPhone 4 CDMA does not react to factory reset is likely to be a battery problem, you can call a technician to replace the battery Non-removable Li-Po 1420 mAh battery from iPhone 4 CDMA, it is a relatively cheap solution.
If none of these methods have worked, it is likely that Apple iPhone 4 CDMA s has a broken motherboard or screen problem.
The Apple iPhone 4 CDMA does not have a water resistance certification so you should avoid coming into contact with liquids and creams.