FLY SERVICE SUPPORT
FS505 SERVICE MANUAL
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TABLE OF CONTENTS
INTRODUCTION………………………………………………………………………2
Chapter 1 EXPLODED VIEW AND COMPONENT DISPOSAL…………………3
EXPLODED DIAGRAM…………………………………………………………….3
DISASSEMBLY AND ASSEMBLY ………………………………………………………..4
SERVICE TOOLS…………………………………………………………………….4
DISASSEMBLE……………………………………………………………………….6
ASSEMBLY……………………………………………………………………………7
Chapter 2 SYSTEM BLOCK DIAGRAM……………………………………………8
Chapter 3 INSTRUCTION OF THE UNIT CIRCUIT……………………………….9
Chapter 4 ACTUALL BOARD……………………………………………………….10
SIDE A…………….…………………………………………..……………………………….16
SIDE B……………………….………………………………………………………………...16
Chapter 5 CIRCUIT INTRODUCTION………………………………………………21
Chapter 6 TROUBLESHOOTING……..………………………………………..…..27
Chapter 7 UPGRADE SOFTWARE INTRODUCTION…………..……………….34
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INTRODUCTION
The purpose of this document is to help service workshop technicians to service products.
This service manual must be used only by authorized service suppliers. The content of it is
confidential. Please note that provides other guidance documents for service suppliers.
Follow these regularly and comply with the given instructions. while every effort has been
made to ensure the accuracy of this document, some errors may exist. please keep in mind
also that this documentation is continuously being updated and modified, so always watch
out for the newest version.
CAUTIONS
Please refer to the phone’s user’s guide for instructions relating to operation, care, and
maintenance, which include important safety information.
1. Servicing and alignment must be undertaken by qualified personnel only.
2. Ensure all work is carried out at an anti-static workstation and that an anti-static wrist
strap is worn.
3. Use only approved components as specified in the parts list.
4. Ensure all components, modules, screws, and insulators are correctly re-fitted after
servicing and alignment.
5. Ensure all cables and wires are repositioned correctly.
Electrostatic discharge can easily damage the sensitive components of electronic
products. Therefore, every service supplier must observe the precautions which
mentioned above.
GENERAL REPAIR INFORMATION
1. Make sure your testing equipment is functioning properly before beginning repair work.
2. before starting repairs you must observe ESD precautions such as being in your ESD
protected area and connecting your wristband.
3. use gloves to avoid corrosion and fingerprints.
4. cover windows and displays with a protective film to avoid dust and scratches.
5. use a lint-free cloth to clean the LCD.
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6. when cleaning the pads use a soft cloth\ESD brush and isopropanol. Do not use a glass
fiber pencil: this scratches the surface and will corrosion.
7. non-faulty mechanical parts(except shielding lids and bent parts or soldered
components). May be reused if they are not soldered.
8. when removing the shielding lids make sure to replace them with new ones, otherwise
the high-frequency leakage can affect the device.
9. always use the original spare parts.
10. check the soldering joints of the parts concerned with regard to the fault symptom. And
resolder them if necessary.
11. remove excess soldering flux after repair.
12. observe the torque requirements when assembling the unit.
13. please aware that some malfunctions may be software related and solved by an update
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Chapter 1
EXPLODED VIEW AND COMPONENT DISPOSAL
1.1 EXPLODED
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1.2 DISASSEMBLY AND ASSEMBLY
1.2.1 SERVICE TOOLS
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Solder wire, soldering paste Wrist grounding strap, Antistatic gloves
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1.2.2 DISASSEMBLY
Remove battery cover Remove battery
Remove 13 screws Remove back cover
Separate After camera Separate TP-FPC
Separate extended FPC Separate ON/OFF-FPC
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Remove PCBA 3 screws Separate LCD-FPC
Separate Signal lines Separate extended FPC
Separate Signal lines Separate Vice board
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1.2.3 ASSEMBLY
Assemble Vice board Assemble extended FPC
Assemble Signal lines Assemble Signal lines
Assemble LCD- FPC Assemble PCBA
Assemble PCBA 3 crews Assemble TP-FPC
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Assemble extended FPC Assemble after camera
Assemble on/off-FPC Assemble back cover& 13 crews
Assemble battery Assemble battery cover
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Chapter 2
ACTUALL BOARD
PCBA SIDE A AND B
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Chapter 3 Electric introduction
3.1 Main CPU introduction
3.1.1 ABB
3.1.2 DBB&POWER
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3.2 RF
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3.3 Headset Microphone
3.4．Earphone Microphone
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3.5 Earphone Audio
3.6 Receiver
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3.7 TP
3.8 LCD
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3.9 Camera
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3.10SIDE Key
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3.11 SIM-CARD
3.12 Charger
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3.13 TF-CARD
3.14 Battery connector
3.15 Vibrator
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Chapter 6 Troubleshooting Guideline
4.1 Can not download
4.2 Can not power on
Can not download?
Check power on problem
Check download tool,
Downlad cable software ok?
Change new tool, new cable or
new software
Can power on?
USB pork appearance
check ok?
Clean or change USB port
Change CPU U1001
yes
nonono
yes
yes
yes
yes
no
no
no
no
yes
no
no
yes
Can not power on
The current 0?
The power on current
low?＜100mA
Change U701 or U900
Change U1001
Change U1001 or
X101
The power on current
high?＞200mA
Remove U1001 current
ok?
Heat or change
U2001
Change battery ok?
Change battery
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4.3 Can not recognize SIM
4.4 Keypads not work
Can not recognize SIM
Heat or change
U2001
Change SIM connector
Change U1001
The SIM connector
appearance ok?
The SIM connector damaged?
SIM pins dirty or distortion?
The resistance to ground
of SIM pins ok?
yes
no
yes
yes
yes
no
Keypad not work
Change U1001
The resistance to ground
of these keypads ok?
Key-FPC broken?
Key“Down”not work?
The resistance to ground
of these keypads ok?
Key “UP” not work?
Change the FPC
Change U1001
Heat or change U1001
no
yes
no
yes
yes
yes
yes
no
no
yes
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4.5 Display problem
4.6 Receiver no sound
Display problem
Display white screen?
Display black screen?
Diplay white line or
others
Upgrade software ok?
Upgrade software ok?
Change LCD
Software problem
Resolder or change LCD
ok?
Resolder or change LCD
ok?
Soldering or material
problem
Change U1001
yes
no
no
yes
yes
yes
no
yes
yes
yes
no
no
Receiver no sound
Upgrade software ok?
Software problem
Change speaker ok?
Speaker problem
Change U1001
yes
no
yes
no
yes
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4.7 Vibrator not work
4.8 Speaker no sound
Vibrator not work
Upgrade software ok?
Software problem
Change vibrator ok?
Vibrator problem
Change U1001
Yes
Yes
No
No
Yes
Speaker no sound
Change Speaker ok?
Upgrade software ok?
Software problem
Speaker problem
Change U1001
Yes
Yes
Yes
No
No
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4.9 MIC pboblem
4.10 No charging
No charging
USB port appearance ok?
Clean or change USB port
Change U2001 OK?
U501 material problem
Change U2001
no
no
yes
yes
yes
MIC problem
The MIC appearance ok?
MIC soldering ok?
MIC rubber cover
broken or missing?
Change or get another
new rubber cover
Change MIC OK?
MIC material problem
Change U2001
Resolder MIC get
solve
yes
yes
yes
yes
no
no
no
no
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4.11 Camera not work
4.12 Touch Panel not work
Camera doesn’t work
Upgrade software ok?
Software problem
Change camera ok?
Resolder camera ok?
Soldering problem
Camera materials problem
Change U1001
Yes
No
Yes
Yes
No
Yes
No
Heat or change
U1001
Change TP connector
Change TP，OK?
The TP connector appearance
ok?
TP connector damaged? TP
pins dirty or distortion?
The resistance to
ground of TP pins ok?
TP not work
Yes
No
Yes
No
Yes
Yes
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Chapter 5 Firmware Upgrading Guide
5.1 Firmware Upgrading
5.1.1 Install USB driver
Insert the download cable and then will find a popular display, follow the
steps by red mark as below
5.1.2 Find the correct driver as below
5.1.3 Follow the steps will finish the installation, after finish and open the computer
manager the USB port will display as below
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5.1.4 Run “UpgradeDownload.exe”
5.1.5 click this icon “ ”
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5.1.6 Select the correct software from the pop-up, then click “open”
5.1.7 Click this icon , a pop-up will be found
Open
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5.1.8 Select the Port and Bautrate in red mark as below, then click OK
5.1.9 Click this icon start to download
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5.1.10 After click the tool will display as below
5.1.11 Plug the download cable into the phone, then put the battery into the phone.
5.1.12 Downloading
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5.1.13 Download passed
5.2 IMEI Writing Guide
How to use “WriteIMEI” to write IMEI
5.2.1 Run “WriteIMEI.exe” , plug the download cable and select port as below
red mark
5.2.2 Click select the model as below red mark
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5.2.3 Enter the IMEI number as below
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5.2.4 Plug the download cable into the phone, then click the icon , next put
the battery into the phone, the tool will display as below
5.2.5 IMEI writing finished
5.2.6 Write IMEI to another phone
After finished one phone IMEI writeing, just remove the download cable and use the
same method continue another phone writing.
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