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Phone is jammed, 2
Jammed
Page 2
Phone shutdown after
30s
No
Measure DBUSClk
1MHz signal
from testpoint J406
Is it OK ?
Yes
Read phone info.
Is it OK ?
Yes
Change LA4
module
,VVXH
)LJXUH
Measure watchdog
Yes
signal CBUSDA from
testpoint J414
Is it OK ?
No
Measure
FBUSRX
No
signal during phone
info read from
test point J412
Is it OK ?
Yes
Measure
FBUSRX
signal during phone
info read from
from testpoint J411
Is it OK ?
Yes
Retest
È1RNLD &RUSRUDWLRQ
1+0
No
Change UPP
No
Change UEM
No
Change UPP
Change UEM
3DJH
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