I'm selling my old LGEnv phone and want to delete all my info, contacts, text, etc. How do I delete all?

To delete old text messages from your Android phone, the easy way is using Android data manager. After you link your Android phone to pc via usb cable or wifi, Android data manager will scan out all data on it, including the old text messages. Then you can preview and choose them to delete. https://www.coolmuster.com/android/delete-text-messages-on-android-phone.html

Delete Messages Samsung Galaxy J7 Galaxy J7

For Android cell phone, the easy way to delete old text messages and phone numbers is using Android data eraser program. With its help, you can easily access all text messages and phone numbers. Just preview and choose what you want to delete on program window. Android Mobile Eraser Wipe off Everything on Your Android Device

To edit a contact

1. On Start, tap People .
2. Flick to All, find and tap the contact you want to edit, then tap Edit .
3. If this is a linked contact (a contact with multiple accounts that show up as one contact card), tap the account you want to edit (for example, tap Edit Windows Live).
4. Do one of the following:

Creating, editing or deleting a contact ' Windows Phone ...

www.windowsphone.com/.../create-edit-or-delete-a-contact Windows Phone
Feedback

how do I simply delete/edit a contact? - Android Phones - Android ...

www.androidforum.com > Android Forum > Android Phones

Reset The Phone.

I deleted all of my contacts by mistake,can you help me get them back?

iPhone Data Eraser would definitely erase your current data and permanently delete iPhone messages, but you can always protect your iPhone's data by using a backup recovery software.

When messages, contacts, photos etc are deleted from a handset or simcard, although deleted all they actually do is free the memory to be listed as useable space, and untill something else is listed over that space your old data is still retrieveable.

You can buy sim card scanners to pull off deleted data and extract to you PC, there is also a number of software available to extract deleted data text messaged etc onto your PC from phone memory.

no root !
Can you retrieve deleted text messages on Android? Yeah, this video will show you the full guide for Android text message recovery. Don't hesitate and recover deleted text messages from Android 4.0, 4.1, 4.2, 4.4, 5.0, 5.1 and more versions right now!
Not only can you recover SMS messages from Android backup but also can recover Android SMS messages without backup. This video is showing you how to recover deleted sms messages on Android without root your phone.
Some common situations that lost text messages you can recover from:
1. accidentally deleted texts on your android phone
2. lost text messages after Android 5.0 updated or other Android upgrade.
3. save text messages from water damaged, crashed, broken or smashed Android phone
4. Android deleted text messages randomly by itself
5. Factory restore Android phone.
And more...
Watch this video and share it with your friends too so that they can also get their precious lost data back.