TCL PIXI 5-10 4G VF - No Wi-Fi;Bt;Fm;Gps Signal

L2E Repair Document TCL Communication Ltd.
Rev.
VF1300 Level 2E Repair Document
Page
1.0
38/39
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7.2.6 No Wi-Fi/BT/FM/GPS signal
Main FPC antenna is
normal?
N
Y
Replace furnished
frame
Y
N
CR1209 is good?
N
Antenna spring is good?
Y
Re-solder or replace
antenna spring
R e w e l d o r r e p l a c e
CR1209
Reweld or replace U0501
N
Y
PMU U0501 is normal?
Replace PCBA
Reweld or replace U1301
N
Y
U1301 is normal?