Nokia 301 Service Manual

Dual SIM troubleshooting
Troubleshooting SIM problems on a dual SIM product is very similar to the procedures outlined in the above
section. The presence of the dual SIM IC is detected by the self-test routine, and as such it can be assumed
that presence and interface towards the BB IC is verified if the self-test passes. The troubleshooting guides
will as a consequence focus on dual SIM IC <-> SIM card related problems. It also assumed that troubleshooting
on SIM1 is done using only one SIM card, which is inserted either in slot 1, and troubleshooting on SIM2 is
done using 2 SIM cards, so both slots needs to be occupied.
RM-839; RM-840; RM-841
BB Troubleshooting and Manual Tuning Guide
Page 3 – 22 NOKIA INTERNAL USE ONLY Issue 1
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Nokia 301 Specifications

General

Display type	LCD
Display diagonal	2.4 \
Display resolution	240 x 320 pixels
Display number of colors	262144 colors
Internal memory	64 MB
Flash card support	Yes
Compatible memory cards	MicroSD (TransFlash)
Maximum memory card size	32 GB
Digital zoom	3 x
Photo effects	Grey, Negative film, Sepia
White balance	Cloudy, Daylight, Fluorescent, Incandescent, Shade, Tungsten
Rear camera resolution	2048 x 1536 pixels
Image formats supported	BMP, GIF, JPG, WBMP
Rear camera resolution (numeric)	3.2 MP
Data network	3.5G, GPRS, GSM, HSDPA, HSUPA, WCDMA
SIM card capability	Single SIM
WCDMA bands supported	900, 2100 MHz
2G bands (primary SIM)	850, 900, 1800, 1900 MHz
Mobile network generation	3G
Bluetooth version	3.0+HS
Bluetooth profiles	A2DP, AVRCP, GAVDP, HFP, HSP, OPP, PBAP, SAP, SDAP, SPP
USB version	2.0
USB connector type	Micro-USB B
Headphone connectivity	3.5 mm
Email protocols	IMAP4, POP3, SMTP
Multimedia Messaging Service (MMS)	-
Maximum frame rate	30 fps
Video compression formats	3GP, ASF, AVI, H.263, H.264, MP4, MPEG4
Video capture resolution (max)	320 x 240 pixels
Ringer type	Polyphonic
Voice codecs	AMR-NB, AMR-WB, G.711, G.726, G.729, iLBC
Audio formats supported	3GPP, AAC, AMR, M4A, MP3, MP4, WAV, WMA
Polyphonic rings quantity	32
Battery type	BL-4U
Talk time (2G)	20 h
Talk time (3G)	6 h
Battery voltage	3.7 V
Battery capacity	1200 mAh
Standby time (2G)	888 h
Standby time (3G)	936 h
Subscription type	No subscription
Product color	Black
Form factor	Bar
Phonebook capacity	2000 entries
Personal info management (PIM)	Alarm clock, Calculator, Calendar, Converter, Notes, Recorder, To-do list

Weight and Dimensions

Depth	12.5 mm
Width	50 mm
Height	114 mm
Volume	104.2 cm³
Weight	100.5 g