E-Manual :
What can I do if I lost IMEI number?
Please send email entitled "IMEI number enquiry" to support-service@doogee.cc, and state out your phone mobel. Our customer support will offer our best help.
How to check my IMEI number?
Press *#06# on dial and IMEI numbers will be shown.
Why the sound(loudspeaker/microphone/receiver) is so weak in my phone?
Please enter engineering mode(press *#*#3646633#*#* on dial) to modify some settings.Find the option “Audio”,you can see many sound option,such as “Headset mode” “Loudspeaker mode” “Speech enhancement”.Choose one of them according to your need and modify the value to a higher one.Note:Please do this carefully and do not change other setting,we are not responsible for damage caused by change setting arbitrarily.
How to use OTA to update Android system?
Find “Setting-About phone-Wireless update-Check update”.It will show that your system is up-to-date after update package installed.
Why the storage reduces so quickly?