Info about g2m | LineageOS Wiki

Warning: The LG G2 Mini is no longer maintained. A build guide is available for developers that would like to make private builds, or even restart official support.

Guides

Installation
Build for yourself
Update to a newer build of the same LineageOS version

Special boot modes

Recovery: With the device powered off, hold Volume Down + Power. When the LG logo appears, release both buttons and then hold them again. Choose ‘Yes’ twice to confirm.

Note: Accept the factory reset prompt using the hardware buttons. If you have done everything correctly, this will not actually reset your device but instead will boot the custom recovery.
Bootloader/Fastboot/Download: With the device powered off, hold Volume Up and connect the USB cable.

Known quirks

IMS
Device integrity

Find help online

You can find assistance with LineageOS on our subreddit, or in #LineageOS on Libera.Chat.

Specifications
LG G2 Mini (g2m)
Released	April 2014
SoC	Qualcomm MSM8226 Snapdragon 400
RAM	1 GB
CPU	Quad-core Cortex-A7 1.2 GHz
Architecture	arm
GPU	Qualcomm Adreno 305
Network	2G GSM 3G UMTS 4G LTE
Storage	8 GB
SD card	Up to 32 GB
Screen	4.8 in (121.92 mm) 540x960 (229 PPI) IPS LCD
Bluetooth	4.0
Wi-Fi	802.11 b/g/n
Peripherals	Accelerometer Proximity sensor Compass NFC
Cameras	2 8 MP, LED flash 1.3 MP, No flash
Dimensions	129.6 mm (5.1 in) (h) 66 mm (2.6 in) (w) 9.8 mm (0.39 in) (d)
Battery	Removable Li-Ion 2440 mAh
LineageOS info
Kernel version	3.4 (source code)
Previously supported versions	14.1 (Android 7.1)