Alcatel MK20X - Page 21

L2 Repair Document TCL Communication Ltd.
Rev.
MK20 Level 2 Repair Document
Page
1.0
21/23
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 SIM card can’t be recognized
Check whether the SIM card is
good
N
N
C h e c k w h e t h e r S I M c a r d
connector is good
Re-assemble or change
SIM card
Re-weld or change
PCBA
Y
Replace PCBA
Y
SIM card can’ t be
recognized
Y