In the United States alone, sales of smartphones were projected to be worth around 77.5 billion U.S. In 2018 smartphone penetration reached 60.5 percent in North America. This means that over 19 percent of the world’s total population owned a smart device in 2019, a figure that is expected to increase to 37 percent by 2021.
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In the first quarter of 2020, around 86.3 percent of all smartphones sold to end users were phones with the Android operating system.” He then adds, “In 2019, the number of smartphones sold to consumers stood at around 1.52 billion units, a significant increase from the 680 million units sold in 2012. O'Dea, on Statista website () about Global smartphone sales to end users 2007-2021, “in 2019, around 1.52 billion smartphones were sold worldwide. According to a statistics published by S.
But smartphones have somehow managed to defy this law, making it one of life’s highest valued assets. Economists posit through the law of diminishing marginal utility that increasing consumption of goods leads to a decreasing price of the goods as marginal utility wanes. The marginal utility value of a smartphone has astronomically risen despite rising cost of acquisition. Consumer behavior has experienced both attitudinal and trendy shift in more tremendous ways. What has changed is a wider shift in user dependency rate than witnessed four years ago. But in spite of improvements and advancements in smartphone computing power, little has changed in terms of the underlying foundational technology. Preface Since the publication of the first edition of the book “Mobile Phones and Tablets Repairs: A Complete Guide for Beginners and Professionals” four years ago, a lot has happened in the mobile smartphone industry. The author and the publisher shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.ĭedication To my darling Wife, Linda Chukwuma Jnr, Onyinyechi, Iheoma and my beloved mother, Joyce To these treasures God blessed me with, I dedicate this work. Warning and Disclaimer The information provided is on an “as is” basis. Printed in the USA by Amazon Kindle Direct Publishing Available from, Barnes & Noble and other retail outlets Also available on Kindle and other devices For information regarding special discounts for bulk purchases, Please contact or call +234-8035887084 Mondraim Books® A Subsidiary of Mondraim Nig. Nor is any liability assumed for damages resulting from the use of information contained herein. Although every precaution has been taken in the preparation of this book, the publisher and author assume no responsibility for errors or omission. No patent liability is assumed with respect to the use of information contained herein. No part of this publication may be reproduced or distributed in any form or by any means or stored in a database or retrieval system without the prior written permission of the author or publisher. Smartphones and Tablets Repairs: Money Making Venture Skill Copyright © 2020 by Chukky Oparandu All rights reserved. Smartphones and Tablets Repairs: Money Making Venture Skill
PART 1: Review of Basic Knowledge and Technical Hardware RepairsĬhapter 1: Introduction to SMART ComputingĬhapter 2: Components Identification and FeaturesĬhapter 3: Basic Electronics and Circuits AnalysisĬhapter 4: Repair Tools and InstrumentationĬahpter 6: Board-Level Repairs and MicrosolderingĬhapter 7: Common Hardware Faults and Repair ProceduresĬhapter 9: User Interface Settings and CodesĬahpter 10: Trade Secrets and Service Centre Operational Guide
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