L2 Repair Document TCL Communication Ltd.
MK20 Level 2 Repair Document
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Power on failure
N
Check whether power key
connector is damaged
Power on failure
Replace PCBA
Charge for 15 minutes, check
whether can power on
N
R e w e l d o r R e p l a c e
power key connector
Y
Check whether battery status is good
N
Replace it with a new
battery
Y
8 PCBA exchange
For L2 repair center, if Level 2 repair does not solve the failure, it is mandatory to change the PCBA and
follow the process as below.
1) Collect the PCBA (without accessories, LCD and camera). MIC should be enclosed when you
exchange the PCBA.
2) Get a new PCBA from the swap stock. Reuse those accessories to assemble the mobile.
3) Fill in the record sticker with IMEI number, fault code, short code, Hardware Technical Level and
software version.
4) Send the NG PCBA with record sticker back to RSH,
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