How to Open Service Mode in LG K40 - Secret Code / Hidden LG Mode
Learn more about LG K40: https://www.hardreset.info/devices/lg/lg-k40/hardreset/first-method/ In case that you want to check phone’s specification, apps information or test all hardware features in your device, you should watch this guide. Let’s get access to hidden modes and make sure that your smartphone is performing well. Find out the secret code to open LG service menu. How to access Test Mode in LG K40? How to activate Test Mode in LG K40? How to use Test Mode in LG K40? How to enable Test Mode in LG K40? How to quit Test Mode in LG K40? How to use service mode in LG K40? Follow us on Instagram ► https://www.instagram.com/hardreset.info/ Like us on Facebook ► https://www.facebook.com/hardresetinfo/ Tweet us on Twitter ► https://twitter.com/HardresetI/