20 Most Recent LG Optimus Dynamic Black Smartphone - Tracfone microSD Slot, Android 2.3, 3 MP Camera Questions & Answers


You need to disable the proximity sensor. The use of the proximity sensor is to detect if the phone is up to your ear during a call, to turn the screen off. However if there is debris on the sensor or even a screen protector over it, it constantly thinks it is up to your ear, hence blacking out the second you make a phone call.

You can go into settings and call settings to disable the proximity sensor.

I’m happy to assist further over the phone at https://www.6ya.com/expert/christopher_d13aca62d29ed9ae

LG Optimus... | Answered on Feb 23, 2016


You can open the speaker however it only goes black if you put it on ur ear

LG Optimus... | Answered on Feb 23, 2016


I hope you got it figured out by now, but if not. The best advice I can give is to navigate your phone with your eyes closed. This setting is for people of no site to be able to use their phone as it tells them where to navigate. And by double clicking an item they can select what they choose. They can also double click, hold and drag to get to the wrap screens to the left or right for more options. I hope this helps.

LG Optimus... | Answered on Jan 29, 2016


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LG Optimus... | Answered on Jan 13, 2016


Here are some suggested fixes when that happens:

Tracfone ZTE Valet Review

There are further known issues of screen lights-on:

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LG Optimus... | Answered on Apr 13, 2015


You uninstall all extra apps you don't use. Save all photos to your card... then swap out the card with a new one.

LG Optimus... | Answered on Sep 23, 2014


Call your cellphone service provider, they will give you a code.

LG Optimus... | Answered on Aug 29, 2014


It depends on which android version are you using but you can download the manual from this webpage: https://www.techbone.net/lg/k40/user-manual

LG Cell Phones | Answered 3 days ago


Your have to go into the Settings menu - you have accidentally turned it to grayscale. On my Lg GPad that is easy to do with a side button which I always forget isn't the power or volume ones!

LG Cell Phones | Answered on Jul 11, 2019


You can try doing a hard reset on the device, but it will erase ALL your personal settings and data (photos,, apps, email, etc.) that is saved to the internal card bring it back to the factory settings.

LG Cell Phones | Answered on Jul 11, 2019


Apps work based on the version of Android that your mobile device is running. You can make sure your Aristo 2 is running the latest version, but if the app requires a later version of Android than your phone can run, you can't use the app.

LG Cell Phones | Answered on Jul 11, 2019


No. an LG UN150 is the Revere model.

LG Cell Phones | Answered on Jul 11, 2019

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