雖然在國內的銷量貌似不太好，但LG G4憑藉兇殘的拍照實力、彎屏且可換電等特性，在港澳臺地區都有不錯的銷量。
但最近香港臺灣地區的不少LG G4用戶，遭遇到無故死機和循環重啟等問題。隨後臺灣和香港媒體收到 LG 官方正式回覆，確認了此次的大面積死機是因為元器件之間的接觸不良導致，稱「會積極處理所有消費者需求」並承諾如果用戶出現類似問題，可以免費進行維修並進行鄭重道歉。
因為LG G4是2015年4月底才發布的機器，所以市面上所有正規渠道購買的機器都可以直接免費保修。
隨後香港衛訊全面停售了LG G4的單卡和雙卡版，衛訊方面稱「因系統問題而暫時下架」。而 LG HK 官方則發出了如下回應：
Official Statement from LG HQ shared by LG HK:
「LG Electronics has been made aware of a booting issue with the LG G4 smartphone has now been identified as resulting from a loose contact between components. Customers who are experiencing booting issues with their LG G4s should contact their local carrier from where the G4 was purchased or a nearby LG Service Center (www.lg.com/common) for repair under full warranty. Customers who purchased their G4 devices from non-carrier retailers should contact an LG Service Center with the understanding that warranty conditions will differ. LG Electronics is committed to providing the highest standards of product quality and customer service and apologizes for the inconvenience caused to some of our customers who initially received incorrect diagnoses.」
LG一直是相當低調紮實的硬體廠商，機器出問題也沒有像同行那樣推脫責任，而是直接認錯並提供了處理方案（蘋果：iPhone 4s信號不好換個手姿就好啦），態度上值得點讚。而國內暫時沒出現大面積的問題反饋，有可能是因為國行版的硬體上有所差異，也有可能是國內G4的用戶並不多。但如果你發現手上的機器出現類似問題，看來可以直接給電話客服了。