cromax W121 Manuale
W121 Assembly Procedure
1. Technical Specifications :
Particular
Remarks
Key Matrix For Flashing
NA
Chipset
MSM8212
Android Version
Win 8.1
Frequency
1.2 Quad Core
Network Mode
GSM 800/1900 + WCDMA 900/2100
ROM
8GB
RAM
1GB
Internal SD Card memory
4.7GB
Expandable Memory
32 GB
Factory mode code
*#87#
W121 Assembly Procedure
2. CAUTIONS
I. Flashing & Servicing must be undertaken by qualified personnel only.
II. Ensure all work is carried out at an anti-static workstation and that an anti-static wrist strap is worn.
III. Use only approved Tools & components as specified in the parts list.
IV. Ensure all components, modules, screws, and insulators are correctly re-fitted after servicing and
alignment
V. Ensure all cables and wires are repositioned correctly if Handset disassembled
VI. Electrostatic discharge can easily damage the sensitive components of electronic products.
Therefore, Service Centre must adhere the precautions which mentioned above.
3. Assembly Procedure
W121 Assembly Procedure
1. Assemble the receiver
2. Assemble the Main MIC and Sub MIC rubber
W121 Assembly Procedure
3. Assemble the Main FPC & Vibrator
W121 Assembly Procedure
4. Assemble the RF Cable
5. Assemble the Sub PCBA
W121 Assembly Procedure
6. Assemble the rear camera
7. Assemble the front camera
W121 Assembly Procedure
8. Assemble the light sensor
9. Assemble the PCBA
W121 Assembly Procedure
10.Assemble the 3 screws & TP FPC&LCD FPC& Power key FPC &Volume key FPC
11.Assemble the rear cover & the 9 screws
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