This Trick is only for black and white devices 100% work. Please follow the steps as below to enter the menu without administrator for the device as below: 1. Please input number “9999” and then press button” up” on the device, Then Input number” 8888”, and press button “UP” again, at this moment, you will see a group number on the LCD, and please write down the number quickly. Please note, the number you see on the LCD is random, each time is different. 2. And then please got the sum of these numbers, the sum result should be with 2 digits. For example: if you see the number on LCD is 25435, the sum will be: 2+5+4+3+5= 19 , and please fill this number in 7*0, Herein stands for the number where you got the sum from the LCD display number. In this case, the result is: 7109. 3. Finally input ‘7109’ on the machine, Press the button “UP” and “Menu” , you can enter the menu dire...
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