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Continue to ChatInstructions for upgrading ROM for LG K40 (LM-X420)official KDZ firmware https://www.leakite.com/instructions-for-upgrading-rom-for-lg-k40-lm-x420official-kdz-firmware/
Instructions for upgrading ROM for LG K40 (LM-X420)official KDZ firmware https://www.leakite.com/instructions-for-upgrading-rom-for-lg-k40-lm-x420official-kdz-firmware/