Samsung GT-S5260 Service Manual page 49

Level 3 Repair
8-3-7. T-Flash Card Working
Insert & Operate
microSD card
NG
SD300
break down ?
NO
R300 = 1.8V ?
NO
C304 = 3.0V ?
YES
Change Main PBA
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
YES
Change SD300
YES
Change SD300
NO
Check U300(PMIC)
8-22