Figure 59 RF key components
RF tuning and testing
RF tuning and testing section will be updated when the WP8 Testing Tool for Care is available.
System module
Phone description
Key components
Function Description Item ref
Main PWB 3VT
GSM/WCDMA B1/WCDMA
B5/LTE B5 PA
WCDMA I, V, LTE B5 (RM-824 US)
WCDMA I, V (RM-824 AT&T)
N7550
RM-824; RM-825; RM-826
Service information differences between RM-824 and
RM-825
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