LG K31 Secret Dialer Codes Rebel l355dl lmk300 & Hidden Menu

There are 3 different variants of LG K31 in the USA. The 1st one is the Factory unlocked version with the model number LMK300qm. The 2nd K31 is for Spectrum Mobile with the model number lmk300qm6 & the last one is the K31 Rebel for Tracfone/Straight Talk with model number L355DL.

The dialer codes can vary according to the model number. In this post, we are going to find the different working secret codes for all the K31 variants as follows –

LG K31 Secret Codes/Dialer Codes & Hidden Menu

 

To enter an LG K31 secret code, we need to open the phone dialer located on the home screen.

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LG K31 Rebel Screen Mirroring, Miracast, Cast to Roku TV

LG K31 is a budget phone with an underpowered Mediatek Helio P22 processor. For a smooth screen mirroring experience without a frame drop, we need at least a mid-range processor such as Snapdragon SDM 450 found on K40.

Moreover, for screen mirroring, the phone should be Miracast enabled. Let’s see if there is the Screen Casting option on LG K31 or not –

Does LG K31 have Screen Mirroring/Miracast?

 

To check the Cast option on LG K31, we need to open the Settings app.

Let’s pull down the notification panel and hit the Settings icon.

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LG K31 Root, Bootloader Unlock, TWRP lmk300qm Rebel l355dl

In the earlier days of Android, rooting was quite easy. It was possible to root the phone via one-click rooting apps without using a computer.  I rooted my LG Tribute 5 in a single click even without unlocking the bootloader.

However, nowadays we need to follow the long path. To root my LG K20 plus I unlocked the bootloader, installed a TWRP custom recovery, and then flashed a Magisk/SuperSU root file via TWRP.

Let’s follow the same procedure for LG K31 as follows –

How to root LG K31 Rebel l355dl Spectrum lmk300qm

First of all, we need to enable USB Debugging and OEM Unlock in the Developer Options.

So, let’s open the Settings app. Pull down the notification panel and tap the “Settings icon”.

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