Engineer Mode in GIONEE A1 - Open Service Menu

Would like to get access to the hidden information about your GIONEE A1 or maybe you wish to perform the hardware test of your smartphone? Watch this valuable tutorial and check out how easily you can get into hidden mode called Engineer Mode. You will be able to use secret combination of numbers to have access to GIONEE Service Menu. How to open engineer mode in GIONEE A1? How to enter engineer mode in GIONEE A1? How to get access to service mode in GIONEE A1? How to enter GIONEE service mode? How to use engineer mode in GIONEE A1? How to enter test mode in GIONEE A1? Learn more about GIONEE A1: https://www.hardreset.info/devices/gionee/gionee-a1/hardreset/first-method/ 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