Need to retrieve deleted contacts and text messages from the internal memory of my LG Envy - possible?? Not the SIM Card

Not possible

To recover lost lg phone contacts, you can use an android data recovery app to help before they were covered by new data.
And you need to root your phone to recover contacts Simple Way to Recover Deleted Contacts from LG Mobile Phone

You can easily spot SD card usage in almost all the cool gadgets, such as the android king - Samsung galaxy s3, all the camcorder goes either full memory card storage or hybrid - with built-in hard drive, the Nikon d90, canon EOS 5d mark ii and all the DSLRs alike. But you must be very pained when you lose data from those SD card in following situations:

• Accidentally deleted files from SD card
• Formatted SD card
• SD card got corrupted or inaccessible
• Virus inflection
• Power failure
• Others

Thanks to the Android Data Recovery, which can recover deleted photos from samsung galaxy and videos from SD cards on Android devices, as well as retrieve deleted contacts from Android phone and messages on SIM cards.

It is easy to retrieve sms, contacts from LG phone, but now you had better use your phone as less as possible, or your data in the phone can't be recovered. And then you need to use Android data recovey software. I ever use one named iPubsoft Android SMS+Contacts Recovery to retrieve lost contacts from LG Envy, you can have a try. Solution to Recover Deleted Contacts from LG Cell Phone