How do u reset a Net 10 UMX U670C TO FACTORY SETTINGS

hold down the volume UP button and power to get to the reboot screen on my UMX phone.
use the volume keys to maneuver and select factory reset. use the power button to select.

Hi,
If it is an Android phone the hard/factory reset will help. But all data will be lost. Switch off the phone, hold down the volume down key and the power button in the same time and keep holding both until it boots up. For more suggestions check this Can do hard reset of my UMX Max phone

How to unlock Umx phone if forgot pattern lock and Google account details

UMX phones are Android based which means that the only way to have access to your device is to factory reset it. The key combination to enter recovery to reset your phone is: Volume UP/Down + Menu + Power button. In some cases it's just Volume Up/Down + Power button. Once you are in recovery select Wipe Data and restart your phone.

you can just google playstore.apk and download it from your web browser on your phone and just click to install it your phone will have you check unknown sources in your setting which is fine

Your battery is shot. You will need to get a new one.

Visit this help page: http://tracfone.deviceanywhere.com/net10/home.seam?custId=NTUXU670C

and select the 'Memory' item in the left menu. It has instructions for deleting data and apps and moving apps to your SD card.

Perhaps your SD card is also already full ?

Umx wouldn't start or charge but I found a fix. Take battery out. Plug charger in. Hold in power button while simultaneously inserting battery and it should then boot up for you!

Get a 5th phone. You can't fix a boot problem yourself.

Take it to a radio shack, or other electronics store, there they can help you get set up with it too.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/james_afb6d80676c07427

you have the hardware problems , u need a local technician to help you for the same