FLY FS504, Service Manual

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FLY SERVICE SUPPORT
FUNCTION TEST
Press “*#2020#” to check these items in factory mode:
1 Version: to check the version of the software
2 Echo Loop: blow to the mic, the receiver will have a sound
3 Key: press relevant keys appear in the screen
4 Libration: The cellphone will librate
5 Lond SPK: there will be a sound from the speaker
6 Ring: press start there will be some music from the speaker
7 Flash LED: press confirm button to check if Flash LED is normal
8 LCD: LCD will Auto Display
9 Front Camera: press confirm button to check if Front Camera is normal
10 Back Camera: press confirm button to check if Front Camera is normal
11 Touchpanel: slide finger to cover the rectangle around
12 Light/Prox Sensor: put hand cover the devices, the sensors will Auto respond to
13 GPS: press confirm button to check if Front Camera is normal
14 WIFI: WIFI will respond Automatically
15 Receiver: there will be a sound from the receiver