20 Most Recent ZTE Avail Z990 - Black at&t Smartphone Questions & Answers

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do you mean anti virus has watned you about an app?if you do go to application manager and delete it

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Try to perform hard reset by Pressing and holding the combination of the Power key+ volum up key+ Menu key when the phone is off. When it enters the boot loader mode use the volume key to scroll --> select wipe data and factory reset --> select yes and wait till the phone reboots.This would solve your issue... :)

This may be due to some software issue.i suggest you to reset your phone that will solve any kind of issues facing with your phone.I have my phone where my display went black, and i performed the below steps. You can even try this Press and hold the combination of the Power key+ volum up key+ Menu key when the phone is off. When it enters the boot loader mode of teh phone use the volume key to scroll --> select wipe data and factory reset --> select yes and wait till the phone reboots.

If you are facing the microphone issue, then you can try resetting the device.1.Power off the phone.2.Press and hold "Vol+", "Menu", and "Power" key until the phone goes to recovery mode.3.Use "Vol+" and "Vol-" to move the cursor up and down.4.Move cursor to "wipe data/factory reset", press "Back" key to select it.5.Now move cursor down to "Yes - delete all user data" and press "Back" to select it.6.The data will be erased.7.The cursor will be on "reboot system now" at the end, so just press "Back" key to reboot the phone normally.WARNING: All user data will be completely cleared; the phone will be in a factory reset status.

Please have a check with your service provider. If still no help, then try resetting the device.1.Power off the phone.2.Press and hold "Vol+", "Menu", and "Power" key until the phone goes to recovery mode.3.Use "Vol+" and "Vol-" to move the cursor up and down.4.Move cursor to "wipe data/factory reset", press "Back" key to select it.5.Now move cursor down to "Yes - delete all user data" and press "Back" to select it.6.The data will be erased.7.The cursor will be on "reboot system now" at the end, so just press "Back" key to reboot the phone normally.WARNING: All user data will be completely cleared; the phone will be in a factory reset status.

Please try resetting the device and check if it would help to resolve the issue.Power off the phone.2.Press and hold "Vol+", "Menu", and "Power" key until the phone goes to recovery mode.3.Use "Vol+" and "Vol-" to move the cursor up and down.4.Move cursor to "wipe data/factory reset", press "Back" key to select it.5.Now move cursor down to "Yes - delete all user data" and press "Back" to select it.6.The data will be erased.7.The cursor will be on "reboot system now" at the end, so just press "Back" key to reboot the phone normally.WARNING: All user data will be completely cleared; the phone will be in a factory reset status.

Well, it really depends on many factors. I guess that you are using many apps at the same time (Background apps consume battery).Another possibility is that your battery is asking for a retirement. Replace it and see if the problem persists. You may need to take it to the repairman.

I had the same thing happen to my ZTE Z233VL flip phone. I reset the phone and now it texts perfectly. To reset go to "settings" - "personal" - and choose "reset".

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Decided by your supplier and the SIM Card. https://www.google.com/search?q=zte+z826+GSM+or+CDMA

ZTE Z826 WCDMA/LTE Multi-Mode Digital Mobile Phone User ...

https://usermanual.wiki > ZTE User manual instruction guide for WCDMA/LTE Multi-Mode Digital Mobile Phone Z826 ZTE Corporation. Setup instructions, pairing guide, and how to reset. ..

Usually a poor WiFi signal that drops from the phone. https://www.google.com/search?q=zte+keeps+disconnecting+from+wifi ..

notify provider

Question edited for clarity, typos and capitalization. FRP Bypass information in the link. If you are the original owner, you just use the credentials for your Google GMail account. https://www.google.com/search?q=zte+n9136+frp+bypass ..

Setting the Date and Time 1. In standby mode, press the OK Key [Menu] to show the Main Menu. 2. Select Settings > Phone > Time and Date to set the date and time.

Here you go. Let me know how you get on.

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