Stock Rom LG K40 (X420QN) Official Firmware All Version Download. Rom kdz LG LMX420QN Fix bootloop, treo logo, Repair Unbrick Update New
Link DOWNLOAD (GDrive)
Android 9
X420QN20i_00_NAO_US_OP_0504.kdz (2,4G)
Stock Rom LG K40 (X420QN) Official Firmware