This is rare. Restore your modem partition via LG UP PARTITION DL or use a backup of your modemst1/modemst2.
However, this path is fraught with peril. Legally, downloading firmware from unofficial sources exists in a gray area. While the firmware itself is proprietary to LG, many distributors claim "fair use" for repair purposes. Yet, LG’s end-user license agreements (EULAs) typically prohibit redistribution or modification. More critically, security risks abound. Unofficial EP files can be injected with malware, spyware, or modified bootloaders that compromise the device. Once flashed, such altered firmware can steal banking credentials, track keystrokes, or enroll the phone into a botnet—all without the user’s knowledge. Moreover, a single wrong EP file (e.g., a mismatch between the model number LM-G710 and LM-G710N) can permanently hard-brick the device, turning it into an expensive paperweight. lg mobile ep download
No – LG UP and most flash tools require Windows. Use Boot Camp or a Windows virtual machine on Mac. This is rare
.kdz file (click “...” button).