Stock Rom LG K40 (X420QM6) Official Firmware All Version Download. Rom kdz LG LMX420QM6 Fix bootloop, treo logo, Repair Unbrick New Version Update
Link DOWNLOAD (GDrive)
Android 9 Pie
X420QM620j_00_CHT_US_OP_0422.kdz (2,6G)
X420QM620i_00_CHT_US_OP_0308.kdz (2,6G)
X420QM620e_00_CHT_US_OP_0806.kdz (2,6G)
X420QM620d_00_CHT_US_OP_0512.kdz (2,6G)
X420QM620c_00_CHT_US_OP_0204.kdz (2,6G)
X420QM620b_00_CHT_US_OP_1108.kdz (2,6G)