Nokia RM-824 User manual

Service Manual
RM-824; RM-825; RM-826 (Nokia Lumia 820;
L3&4)
Mobile Terminal
Part No: (Issue 2)
Nokia Customer Care
NOKIA INTERNAL USE ONLY
Copyright © 2012 Nokia. All rights reserved.

Amendment Record Sheet
Amendment No Date Inserted By Comments
Issue 1 10/2012 MT
Issue 2 11/2012 MT Section Proximity sensor and
ambient light sensor (ALS) has been
updated in the BB Troubleshooting
Guide chapter.
Chapter 8, titled Service information
differences between RM-826 and
RM-824 , has been added to the
manual. The new chapter describes
the key hardware differences
between the RM-826 and RM-824
variants of the Nokia Lumia 820.
RM-824; RM-825; RM-826
Amendment Record Sheet
Page ii NOKIA INTERNAL USE ONLY Issue 2
Copyright © 2012 Nokia. All rights reserved.

Copyright
Copyright © 2012 Nokia. All rights reserved.
Reproduction, transfer, distribution or storage of part or all of the contents in this document in any form
without the prior written permission of Nokia is prohibited.
Nokia, Nokia Connecting People, and Nokia X and Y are trademarks or registered trademarks of Nokia
Corporation. Other product and company names mentioned herein may be trademarks or tradenames of
their respective owners.
Nokia operates a policy of continuous development. Nokia reserves the right to make changes and
improvements to any of the products described in this document without prior notice.
Under no circumstances shall Nokia be responsible for any loss of data or income or any special, incidental,
consequential or indirect damages howsoever caused.
The contents of this document are provided "as is". Except as required by applicable law, no warranties of
any kind, either express or implied, including, but not limited to, the implied warranties of merchantability
and fitness for a particular purpose, are made in relation to the accuracy, reliability or contents of this
document. Nokia reserves the right to revise this document or withdraw it at any time without prior notice.
The availability of particular products may vary by region.
IMPORTANT
This document is intended for use by qualified service personnel only.
RM-824; RM-825; RM-826
Copyright
Issue 2 NOKIA INTERNAL USE ONLY Page iii
Copyright © 2012 Nokia. All rights reserved.

Warnings and cautions
Warnings
•IF THE DEVICE CAN BE INSTALLED IN A VEHICLE, CARE MUST BE TAKEN ON INSTALLATION IN VEHICLES FITTED
WITH ELECTRONIC ENGINE MANAGEMENT SYSTEMS AND ANTI-SKID BRAKING SYSTEMS. UNDER CERTAIN FAULT
CONDITIONS, EMITTED RF ENERGY CAN AFFECT THEIR OPERATION. IF NECESSARY, CONSULT THE VEHICLE DEALER/
MANUFACTURER TO DETERMINE THE IMMUNITY OF VEHICLE ELECTRONIC SYSTEMS TO RF ENERGY.
•THE PRODUCT MUST NOT BE OPERATED IN AREAS LIKELY TO CONTAIN POTENTIALLY EXPLOSIVE ATMOSPHERES,
FOR EXAMPLE, PETROL STATIONS (SERVICE STATIONS), BLASTING AREAS ETC.
•OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT, INCLUDING CELLULAR TELEPHONES, MAY INTERFERE
WITH THE FUNCTIONALITY OF INADEQUATELY PROTECTED MEDICAL DEVICES. CONSULT A PHYSICIAN OR THE
MANUFACTURER OF THE MEDICAL DEVICE IF YOU HAVE ANY QUESTIONS. OTHER ELECTRONIC EQUIPMENT MAY
ALSO BE SUBJECT TO INTERFERENCE.
•BEFORE MAKING ANY TEST CONNECTIONS, MAKE SURE YOU HAVE SWITCHED OFF ALL EQUIPMENT.
Cautions
•Servicing and alignment must be undertaken by qualified personnel only.
•Ensure all work is carried out at an anti-static workstation and that an anti-static wrist strap is worn.
•Ensure solder, wire, or foreign matter does not enter the telephone as damage may result.
•Use only approved components as specified in the parts list.
•Ensure all components, modules, screws and insulators are correctly re-fitted after servicing and
alignment.
•Ensure all cables and wires are repositioned correctly.
•Never test a mobile phone WCDMA transmitter with full Tx power, if there is no possibility to perform the
measurements in a good performance RF-shielded room. Even low power WCDMA transmitters may disturb
nearby WCDMA networks and cause problems to 3G cellular phone communication in a wide area.
•During testing never activate the GSM or WCDMA transmitter without a proper antenna load, otherwise
GSM or WCDMA PA may be damaged.
RM-824; RM-825; RM-826
Warnings and cautions
Page iv NOKIA INTERNAL USE ONLY Issue 2
Copyright © 2012 Nokia. All rights reserved.

For your safety
QUALIFIED SERVICE
Only qualified personnel may install or repair phone equipment.
ACCESSORIES AND BATTERIES
Use only approved accessories and batteries. Do not connect incompatible products.
CONNECTING TO OTHER DEVICES
When connecting to any other device, read its user’s guide for detailed safety instructions. Do not connect
incompatible products.
RM-824; RM-825; RM-826
For your safety
Issue 2 NOKIA INTERNAL USE ONLY Page v
Copyright © 2012 Nokia. All rights reserved.

ESD protection
Nokia requires that service points have sufficient ESD protection (against static electricity) when servicing
the phone.
Any product of which the covers are removed must be handled with ESD protection. The SIM card can be
replaced without ESD protection if the product is otherwise ready for use.
To replace the covers ESD protection must be applied.
All electronic parts of the product are susceptible to ESD. Resistors, too, can be damaged by static electricity
discharge.
All ESD sensitive parts must be packed in metallized protective bags during shipping and handling outside
any ESD Protected Area (EPA).
Every repair action involving opening the product or handling the product components must be done under
ESD protection.
ESD protected spare part packages MUST NOT be opened/closed out of an ESD Protected Area.
For more information and local requirements about ESD protection and ESD Protected Area, contact your local
Nokia After Market Services representative.
RM-824; RM-825; RM-826
ESD protection
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Copyright © 2012 Nokia. All rights reserved.

Care and maintenance
This product is of superior design and craftsmanship and should be treated with care. The suggestions below
will help you to fulfil any warranty obligations and to enjoy this product for many years.
•Keep the phone and all its parts and accessories out of the reach of small children.
•Keep the phone dry. Precipitation, humidity and all types of liquids or moisture can contain minerals that
will corrode electronic circuits.
•Do not use or store the phone in dusty, dirty areas. Its moving parts can be damaged.
•Do not store the phone in hot areas. High temperatures can shorten the life of electronic devices, damage
batteries, and warp or melt certain plastics.
•Do not store the phone in cold areas. When it warms up (to its normal temperature), moisture can form
inside, which may damage electronic circuit boards.
•Do not drop, knock or shake the phone. Rough handling can break internal circuit boards.
•Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the phone.
•Do not paint the phone. Paint can clog the moving parts and prevent proper operation.
•Use only the supplied or an approved replacement antenna. Unauthorised antennas, modifications or
attachments could damage the phone and may violate regulations governing radio devices.
All of the above suggestions apply equally to the product, battery, charger or any accessory.
RM-824; RM-825; RM-826
Care and maintenance
Issue 2 NOKIA INTERNAL USE ONLY Page vii
Copyright © 2012 Nokia. All rights reserved.

Company policy
Our policy is of continuous development; details of all technical modifications will be included with service
bulletins.
While every endeavour has been made to ensure the accuracy of this document, some errors may exist. If
any errors are found by the reader, NOKIA MOBILE PHONES Business Group should be notified in writing/e-
mail.
Please state:
•Title of the Document + Issue Number/Date of publication
•Latest Amendment Number (if applicable)
•Page(s) and/or Figure(s) in error
Please send to:
NOKIA CORPORATION
Nokia Mobile Phones Business Group
Nokia Customer Care
PO Box 86
FIN-24101 SALO
Finland
E-mail: [email protected]
RM-824; RM-825; RM-826
Company policy
Page viii NOKIA INTERNAL USE ONLY Issue 2
Copyright © 2012 Nokia. All rights reserved.

Battery information
Note: A new battery's full performance is achieved only after two or three complete charge and
discharge cycles!
The battery can be charged and discharged hundreds of times but it will eventually wear out. When the
operating time (talk-time and standby time) is noticeably shorter than normal, it is time to buy a new battery.
Use only batteries approved by the phone manufacturer and recharge the battery only with the chargers
approved by the manufacturer. Unplug the charger when not in use. Do not leave the battery connected to
a charger for longer than a week, since overcharging may shorten its lifetime. If left unused a fully charged
battery will discharge itself over time.
Temperature extremes can affect the ability of your battery to charge.
For good operation times with Li-Pol batteries, discharge the battery from time to time by leaving the product
switched on until it turns itself off (or by using the battery discharge facility of any approved accessory
available for the product). Do not attempt to discharge the battery by any other means.
Use the battery only for its intended purpose.
Never use any charger or battery which is damaged.
Do not short-circuit the battery. Accidental short-circuiting can occur when a metallic object (coin, clip or
pen) causes direct connection of the + and - terminals of the battery (metal strips on the battery) for example
when you carry a spare battery in your pocket or purse. Short-circuiting the terminals may damage the battery
or the connecting object.
Leaving the battery in hot or cold places, such as in a closed car in summer or winter conditions, will reduce
the capacity and lifetime of the battery. Always try to keep the battery between 15°C and 25°C (59°F and 77°
F). A phone with a hot or cold battery may temporarily not work, even when the battery is fully charged.
Batteries' performance is particularly limited in temperatures well below freezing.
Do not dispose of batteries in a fire!
Dispose of batteries according to local regulations (e.g. recycling). Do not dispose as household waste.
RM-824; RM-825; RM-826
Battery information
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Copyright © 2012 Nokia. All rights reserved.

RM-824; RM-825; RM-826
Battery information
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Nokia Lumia 820; L3&4 Service Manual Structure
1 General Information
2 Service Tools and Service Concepts
3 BB Troubleshooting Guide
4 Cellular RF troubleshooting
5 Camera Module Troubleshooting
6 System Module
7 Service information differences between RM-824 and RM-825
8 Service information differences between RM-826 and RM-824
Glossary
RM-824; RM-825; RM-826
Nokia Lumia 820; L3&4 Service Manual Structure
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Copyright © 2012 Nokia. All rights reserved.

RM-824; RM-825; RM-826
Nokia Lumia 820; L3&4 Service Manual Structure
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1 — General Information
Nokia Customer Care
Issue 2 NOKIA INTERNAL USE ONLY Page 1 – 1
Copyright © 2012 Nokia. All rights reserved.

RM-824; RM-825; RM-826
General Information
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Table of Contents
Product selection................................................................................................................................................... 1–5
Product features and sales package.................................................................................................................... 1–6
Product and module list ....................................................................................................................................... 1–9
Mobile enhancements........................................................................................................................................... 1–9
Technical specifications..................................................................................................................................... 1–11
Transceiver general specifications .............................................................................................................. 1–11
Main RF characteristics for GSM850/900/1800/1900, WCDMA VIII/V/II/I and LTE B1/B3/B7/B8/B20
phones.................................................................................................................................................. 1–11
Battery endurance......................................................................................................................................... 1–14
Environmental conditions ............................................................................................................................ 1–14
List of Tables
Table 1 Audio......................................................................................................................................................... 1–9
Table 2 Car........................................................................................................................................................... 1–10
Table 3 Data ........................................................................................................................................................ 1–11
Table 4 Power..................................................................................................................................................... 1–11
List of Figures
Figure 1 View of RM-825....................................................................................................................................... 1–5
RM-824; RM-825; RM-826
General Information
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Copyright © 2012 Nokia. All rights reserved.

RM-824; RM-825; RM-826
General Information
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Product selection
RM-825 is a GSM/WCDMA dual-mode handportable monoblock multimedia computer with a capacitive touch
UI, integrated GPS (A-GPS OMA SUPL) and Glonass, WLAN and an internal FM radio. The device also supports
Bluetooth 2.1 + EDR standard and Near Field Communication (NFC). RM-825 supports GSM
850/900/1800/1900, WCDMA I/II/V/VIII and LTE B1/B3/B7/B8/B20 bands, GPRS/EGPRS and WCDMA/HSDPA/
HSUPA data bearers.
For WCDMA the maximum bit rate is up to 384 kbit/s for downlink and 384 kbit/s for uplink with simultaneous
CS speech or CS video (max. 64 kbit/s). RM-825 supports HSDPA + dual carrier category 24 with downlink peak
data rate up to 42.1 Mbit/s (in limited use cases), HSUPA belongs to category 6 with uplink peak data rate up
to 5.76 Mbit/s (in limited use cases). RM-825 supports LTE category 3 with a maximum bit rate of up to 100
Mbit/s for downlink and up to 50 Mbit/s for uplink. The device also supports RX diversity.
In PS/CS mode, the device supports DTM with multi slot class 11 (max. 4 RX + 3 TX, sum 5). With EGPRS this
means a maximum download speed of up to 236.8 kbit/s simultaneously with speech. With GPRS this means
a maximum download speed of up to 64.2 kbit/s simultaneously with speech.
In PS only mode, RM-825 supports MSC 12, a maximum of 5 RX + 4 TX, sum 6 timeslots resulting in a maximum
download speed of up to 296 kbit/s with EGPRS, and up to 107 kbit/s with GPRS.
The device has a large AMOLED 4.3” (800 x 480 pixels) ClearBlack WVGA touch display with 2D flat glass, 16
million colors and support for pinch zoom. It also has an 8 megapixel autofocus camera with Carl Zeiss optics,
3 x digital zoom and an integrated dual LED flash. The device supports two-way video calls with two
integrated cameras, one on the front and one on the back.
The MMS implementation follows the OMA MMS standard release 1.3. The browser is a highly advanced
Internet browser also capable of viewing operator domain XHTML Mobile Profile (MP) content.
The device uses Windows Phone 8 operating system (release 8, Apollo) and supports the full Web Browser
for Internet Explorer 10 with desktop rendering which brings desktop-like Web browsing experience to
mobile devices.
Figure 1 View of RM-825
RM-824; RM-825; RM-826
General Information
Issue 2 NOKIA INTERNAL USE ONLY Page 1 – 5
Copyright © 2012 Nokia. All rights reserved.

Product features and sales package
Imaging
Main camera:
•Sensor: 8 megapixel
•Carl Zeiss Optics: Tessar™ lens
•F number/Aperture: F2.2
•Digital zoom: 3x
•Auto focus: Two-stage capture key
•Focal length: 28 mm (35 mm equivalent)
•Focus range: 10 cm ~ infinity
•Flash: Integrated dual LED flash
•Macro focus distance: 10-50 cm
Secondary camera:
•Sensor: VGA (640 x 480 pixels)
•F number/Aperture: F2.8
•Fixed focus
Video:
•Video resolution: Full HD 1080p video capture 30fps
•Audio recording: AAC (AMR for MMS)
•Video stabilization
•Video clip length: Max. 90 min
•Video file format: .mp4 H.264 (for lower fps)
•White balance: automatic, sunny, cloudy, incandescent, fluorescent
•Scene: automatic, night
•Zoom (digital): 3x
•Video recording indicator
Photo:
•Aspect ratio: 16:9 (7.1 Mpix), 4:3 (8 Mpix), 3:2 (7 Mpix)
•View finder: Full screen view finder
•Still image resolutions: up to 8 megapixel: 3248 x 2448
•Still image file format: JPEG/EXIF
•Auto focus
•Auto exposure: center weighted AE
•Image orientation: automatic
•Automatic red eye removal
•Exposure compensation: +2 ~ -2EV at 0.5 step
•White balance: automatic, sunny, cloudy, incandescent, fluorescent
•Scene: automatic, sports, portrait, close-up, landscape, night
•Zoom (digital): up to 3x
RM-824; RM-825; RM-826
General Information
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Copyright © 2012 Nokia. All rights reserved.

Edit
•On device Photo editor (manual & automatic)
View
•4.3” ClearBlack AMOLED WVGA (800 x 480 pixels) color display, up to 16M colors, 16:9 aspect ratio
•Capacitive touch
•2D flat glass
•Alphamon sensor - a combination of ALS and proximity. ALS to optimize display brightness and power
consumption. Proximity for turning off the display when in a call for power consumption.
•Slideshow from Pictures
Share
•Share effortlessly from Pictures or after capture
•Video sharing support (WCDMA services)
•Online Album: Image/Video uploading from Pictures
Store
•8 GB internal memory
•1 GB SDRAM
•MicroSD card slot, support up to 32 GB
•Easy to transfer and organize photos and video between your device and a compatible PC
Music
•Digital music player: supports MPEG-4 AAC/ AAC+/ eAAC+/ MPEG-1 audio Layer3 (MP3)/ WMA Pro 9 and 10
•Synchronise music with Zune PC application
•Stereo FM radio (87.5-108 MHz /76-90 MHz)
•Bluetooth speakers
•Integrated handsfree speaker
•Nokia Music Headset (WH-208), inbox
Media
•Full-screen video playback to view downloaded, streamed or recorded video clips
•Supported video formats: MPEG-4 , H.264/AVC, H.263/3GPP, WMV, AVI, Mov
Productivity
Context management:
•Internet Explorer 10 with desktop rendering
•OMA DRM version 2.0
•OTA provisioning
Messaging:
•E-mail (SMTP, IMAP4, POP3), MMS, SMS, unified editor
Office applications:
•Viewing of email attachments – .doc, .xls, .ppt, .pdf, .zip
RM-824; RM-825; RM-826
General Information
Issue 2 NOKIA INTERNAL USE ONLY Page 1 – 7
Copyright © 2012 Nokia. All rights reserved.

•Mail for Exchange
•Rich HTML
•Office 15, Sharepoint 15, Office 365
PIM:
•Contacts, calendar, calculator, clock, To-do, Notes
Synchronization:
•Local/Remote (using Zune PC SW)
•Data: Calendar, Contacts, E-mail, To-do list
•PC Applications: Microsoft Outlook (98, 2000, 2002, 2003), Outlook Express
Call management:
•Call logs, speed dial, voice dialling (with SIND) and voice commands
Connectivity
•Integrated GPS (A-GPS OMA SUPL) and Glonass
•WLAN - IEEE802.11 a/b/g/n with 2.4GHz and 5.0GHz
•Micro USB interface with USB 2.0 high speed
•Wireless charging with accessory battery cover
•Bluetooth wireless technology 2.1 + EDR
•Near Field Communication (NFC)
•Nokia 3.5 mm AV connector
Additional technical specifications
•Vibrating alert
•3GPP Rel 8/6 compliant
•Speech codecs supported: FR, EFR, HR, AMR-NB, AMR-WB
•1.5 GHz dual core processor
•WCDMA DL 384 kbit/s, UL 384 kbit/s
•GPRS/EGPRS Class B, multi slot class 12
•Dual Transfer Mode (DTM) class A, multi slot class 11
•HSDPA up to 42.1 Mbit/s, HSUPA 5.76 Mbit/s
•LTE DL up to 100 Mbit/s, UL up to 50Mbit/s
Sales package
•Transceiver RM-825
•Battery (BP-5T)
•USB charger (AC-50)
•Music headset (WH-209)
•Connectivity cable (CA-190CD)
•Micro SIM card
•SIM door key
•Booklet (including quick guide and legal information)
RM-824; RM-825; RM-826
General Information
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Copyright © 2012 Nokia. All rights reserved.