'  firmware update

LMX420EM Stock official firmware (Rom) List

Name Model OS Region Size Download
LG K40 Dual LMX420EM (X420EM20S_00) Android 9.x Pie VDH 2.45GB Download (3465)
LG K40 Dual LMX420EM (X420EM10D_00) Android 8.x Oreo VDH 2.06GB Download (4235)
LG K40 Dual LMX420EM (X420EM20S_00) Android 9.x Pie VDI 2.45GB Download (3465)
LG K40 Dual LMX420EM (X420EM10D_00) Android 8.x Oreo VDI 2.06GB Download (4081)
LG K40 Dual LMX420EM (X420EM20S_00) Android 9.x Pie VDI 2.45GB Download (2310)
LG K40 Dual LMX420EM (X420EM20S_00) Android 9.x Pie VDH 2.45GB Download (1617)