How to Enter Engineer Mode in OPPO F7 - Hardware Test Mode

Learn more about OPPO F7: https://www.hardreset.info/devices/oppo/oppo-f7/hardreset/first-method/ In case that you want to get access to hidden functions of your device you should watch our video tutorial and use the secret codes to open engineering mode. You will be able to test a lot of functions or check the information about your mobile. How to enter engineering mode in OPPO F7? How to open engineering mode on OPPO F7? How to use engineering mode in OPPO F7? How to quit engineering mode in OPPO F7? 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/