Troubleshoots ZTE Concord II

These are some of the reasons that lead you to want to perform a reset, format, hard reset or factory reset of your ZTE Concord II:

— My ZTE Concord II works very slow and I want to format it.

— I have forgotten my ZTE Concord II unlock pattern or screen unlock PIN code.

— The ZTE Concord II is hung or frozen.

— My ZTE Concord II does not have enough storage space to install applications.

— Clear all information from ZTE Concord II before selling or giving it away.

— Restore to factory settings my ZTE Concord II

— My ZTE Concord II has trouble picking up calls.

Click the following link to see instructions on resetting ZTE Concord II

Before doing a hard reset or formatting you should know that all the data and configuration of your ZTE Concord II will be erased and will be back as it came from the factory.

Doing a format should not involve any risk for your ZTE Concord II, however you must follow all the steps correctly, the ZTE 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 Concord II to a professional.

Doing a hard reset or formatting of ZTE Concord II will erase all data that has been stored since the first moment Concord II 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 ZTE 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 ZTE Concord II will be deleted.

All this data will be deleted from the ZTE Concord II 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 ZTE Concord II data either through a computer by connecting the Concord II 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 ZTE has at least 800attery power and if possible keep it connected to the charger and the power while performing the reset tasks.

The Fortnite video game has the following requirements to work on a mobile device: minimum 3Gb of RAM, Android 8.0 or higher, GPU: Adreno 530 or higher, Mali-G71 MP20, Mali-G72 MP12 or higher and free internal storage space of at least 3GB.

The ZTE Concord II it has a RAM memory 1 GB, it comes from the factory with the Android 4.3 Jelly Bean operating system and an internal memory of 4 GB (gigabytes).

Fortnite for Android cannot be obtained from Google Play like the rest of applications and games, since Epic Games decided to remove it from the Google application store to avoid paying 30 per cent commission for each subscription or purchase that is made in the video game. To get Fortnite in your ZTE Concord II you must download the installer accessing from the mobile device to epicgames.com/fortnite/android and allow installation of apk files on your Concord II.

The Genshin Impact video game has the following requirements to be able to work on an Android mobile device: minimum 3 GB of RAM memory, Android 7 or higher operating system and free internal storage space of at least 8 GB.

The ZTE Concord II it has a RAM memory 1 GB, the processor ARM Cortex-A7, it comes from the factory with the Android 4.3 Jelly Bean operating system and an internal memory of 4 GB (gigabytes).

If you have forgotten the PIN code of your ZTE Concord II 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.

If you have a Google account associated with your ZTE Concord II and you remember the password you can unlock your ZTE.

After several attempts to try to unlock the Concord II, the phrase “Forgot your password?” Will appear in the lower left. or “Forgotten the password” click on it, now enter the password of your Google account and your ZTE Concord II will be unlocked.

Once unlocked you can change the unlock pattern or lock PIN code from the Android 4.3 Jelly Bean operating system settings.

If you do not remember the password of your Google account you must use a computer or other device to try to recover the password through a secret question or a second email account, if it is also not possible to recover the Google password the last option to unlock your ZTE Concord II is to do a hard reset or factory reset so you will erase all the information stored in your 4 GB (gigabytes) and all its settings.

There are several methods to improve the speed of a Concord II from ZTE before resorting to acquiring a new model or resorting to more drastic methods.

Unlike a computer or laptop, we cannot expand the RAM of a ZTE Concord II from 1 GB which comes by default so we have to look for methods to improve its performance.

1- Perform an unnecessary application cleanup. Check all downloaded applications you do not use and delete them.

2- Remove pre-installed applications. Your ZTE Concord II comes with pre-installed applications that you may not use and are taking up space in your 4 GB (gigabytes) memory.

3- Pass media files to memory card.

4- Keep your ZTE Concord II updated to the latest software version, Android 4.3 Jelly Bean it is the version of the operating system with which it was released but possibly new versions have come out with performance improvements.

5- Try restarting your ZTE Concord II

6- Install an antivirus or cleaning application.

7- As a last option you can perform a format, factory reset or hard reset of your ZTE.

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 ZTE Concord II has a 2G connectivity: GSM 850 MHz, GSM 900 MHz, GSM 1800 MHz, GSM 1900 MHz

A 3G connectivity: UMTS 850 MHz, UMTS 1900 MHz

4G / LTE connectivity: LTE-TDD 1900 MHz (B39), LTE-TDD 2300 MHz (B40), LTE-TDD 2600 MHz (B38)

The frequencies or bands of cellular telephony used in the United Kingdom are the following:

2G/GSM: GSM 900 MHz, GSM 1800 MHz.

3G/WCDMA: UMTS 900 MHz, UMTS 2100 MHz.

4G/LTE: LTE 800 MHz, LTE 1800 MHz, LTE 2600 MHz.

5G: 3400 MHz (42), 5G 3500 MHz (78).

You can check if the ZTE Concord II works in the United Kingdom since it has a connectivity 2G: GSM 850 MHz, GSM 900 MHz, GSM 1800 MHz, GSM 1900 MHz

A 3G connectivity: UMTS 850 MHz, UMTS 1900 MHz

4G / LTE connectivity: LTE-TDD 1900 MHz (B39), LTE-TDD 2300 MHz (B40), LTE-TDD 2600 MHz (B38)

The frequencies or bands of cellular telephony used in Ireland are the following:

2G/GSM: GSM 900 MHz, GSM 1800 MHz.

3G/WCDMA: UMTS 2100 MHz.

4G/LTE: LTE 800 MHz, LTE 900 MHz, LTE 1800 MHz.

5G: 3500 (78).

The frequencies or bands of cellular telephony used in Australia are the following:

2G/GSM: Obsolete 900 MHz, 1800 MHz.

3G/WCDMA: 850 MHz 900 MHz, UMTS 2100 MHz.

4G/LTE: 700 MHz (28), 850 MHz (5), 1800 MHz (3), 2100 MHz (1), 2300 MHz (40), 2600 MHz (7).

5G: 2300 MHz (40), 3500 MHz (78).

The frequencies or bands of cellular telephony used in Canada are the following:

2G/GSM: 850 MHz, 1900 MHz.

3G/WCDMA: 850 MHz 1700 MHz, UMTS 1900 MHz.

4G/LTE: 700 MHz (12, 13, 17, 4, 29), 1700 MHz (4, 66), 1900 MHz (2), 2100 MHz (4), 2300 MHz (40), 2500 MHz (7), 2600 MHz (7, 38), 3500 MHz (42).

5G: 2600 MHz (38, 66).

On Android devices like the ZTE Concord II it is possible to quickly access emergency contacts without having to unlock the terminal.

First of all you must configure emergency calls on your Concord II, for this you must go to the device settings and search under “Advanced functions” or “Security and privacy” section “Send emergency message”, “Contacts of Emergency” or “SOS Emergency” varies depending on the version of the operating system and the customization layer of ZTE.

Within this section you must configure the emergency contacts that you want to appear when activating the emergency call.

Once you have configured several possible ways to make the call depending on the software version, one possibility is by pressing the power key five times in a row (in some models it is activated with three consecutive keystrokes), in case this option does not work in The lock screen should show the emergency text at the bottom, click on the word “Emergency” and you will be able to access the emergency contacts.

Keep your ZTE Concord II 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 ZTE Concord II 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 ZTE Concord II you must go to Settings, this is the gear icon on the home screen of your ZTE, scroll down and click on “Software Updates” and then on “Check for updates”.

Step-by-step instructions to update Android.

To make a backup of your ZTE Concord II there are several methods.

The most economical method to make a backup is to connect the ZTE Concord II to a computer using the USB cable and make a copy of the files using the file browser.

To perform a cloud backup you need a cloud backup service, on Android devices the default built-in service is Google Drive.

With Google Drive you have 15Gb free, there are other similar services of other companies all with limited free storage space option such as Microsoft OneDrive, Amazon Photos or Dropbox.

If what you want is to make a backup only of the photos and videos made with your ZTE you can use Google Photos, You will have all your photos and videos organized and you can configure it to be uploaded automatically at the time of capturing or uploaded all when connecting to a Wi-Fi network.

If your ZTE Concord II it does not turn on you must follow a series of recommendations to check what the problem is:

First connect the ZTE 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 ZTE still does not turn on, proceed to the following recommendation.

Try to make a factory reset, you will lose all the data in the ZTE Concord II but you can recover them later through the iCloud backup.

If the ZTE Concord II does not react to factory reset is likely to be a battery problem, you can call a technician to replace the battery from Concord II, it is a relatively cheap solution.

If none of these methods have worked, it is likely that ZTE Concord II s has a broken motherboard or screen problem.

Water resistance is not a permanent condition and may decrease over time, avoid using the ZTE Concord II in saunas, steam baths, drop it or receive blows, expose it to soap or shampoo, expose it to perfumes, solvents, detergents, acids, creams and in general any type of liquid other than fresh water and extreme temperatures. The Concord II has a certification IP57, IP6X.

If your ZTE Concord II is not charging the battery while connected to the power adapter, it may be due to a dirty charging connector. Check the Concord II's Micro USB charging connector, for example, with a flashlight, to see if it has lint or dirt and clean it very carefully. You can blow to try to remove the lint and dust. You can also carefully insert a toothpick or a cotton swab. Avoid inserting metallic, conductive, or sharp materials, as they can damage the interior.

Try another power outlet: Sometimes the problem is the power outlet and not the phone or these accessories. Check the charger and cable: Make sure they are not damaged. Try another charger and cable to rule out that they are the problem.

Remember that handling the phone on your own can void the warranty, so be careful with the steps you decide to follow.