Engineering:Nokia Lumia 900

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Short description: Smartphone model
Nokia Lumia 900
Nokia Lumia logo.svg
ManufacturerNokia manufactured in South Korea and in South Africa
SeriesLumia
Compatible networksGSM, HSDPA, Wi-Fi, LTE (AT&T)
Availability by regionJune 2012
PredecessorNokia N9
SuccessorNokia Lumia 920[1]
RelatedNokia Lumia
Form factorSlate
Dimensions128 mm (5.0 in) H
69 mm (2.7 in) W
12 mm (0.47 in) D
Mass159 g (5.6 oz)
Operating systemWindows Phone 7.5 Mango Commercial Release 2 (Mango + LTE) (not able to be updated to Windows Phone 8)[2]
System on chipQualcomm Snapdragon S2 APQ8055
CPU1.4 GHz Qualcomm Scorpion
GPUAdreno 205 GPU
Memory16 GB internal flash
512 MB ROM
512 MB RAM
Removable storageNone
BatteryRechargeable BP-6EW 1830mAh Li-ion battery
Data inputsMulti-touch capacitive touchscreen, proximity sensor, ambient light sensor, 3-axis accelerometer, digital compass, dual microphone for active noise cancellation[3][4]
Display4.3" (109 mm) ClearBlack AMOLED capacitive touchscreen
480x800 px 217 ppi 16m-color WVGA[5]
Gorilla Glass
Rear camera8-megapixel, 3264x2448 pixels, dual-LED flash, autofocus Carl Zeiss optics, 720p video capture
Front camera1-megapixel, 1280x720 pixels
1.3 megapixel (AT&T)
ConnectivityBluetooth 2.1, 802.11b/g/n, dual mode A-GPS/GLONASS, micro-USB, 3.5mm audio jack, FM radio
WebsiteNokia Lumia 900
Nokia Lumia 900

The Nokia Lumia 900 is a Windows Phone-powered smartphone, first unveiled on January 9, 2012, by Nokia at Consumer Electronics Show 2012, where it won the Best Smartphone award in January 2012.[6][7] The phone has 4G LTE support and was released in April 2012. The Lumia 900 was the flagship smartphone of the Lumia range until the release of its successor, the Lumia 920.[1]

Development

Soon after Nokia announced its partnership with Microsoft to produce and market Windows Phone devices in 2011, the company attempted to reach a deal with the major U.S. carrier AT&T to carry its devices. However, AT&T demanded a device with support for LTE connectivity—which Windows Phone did not yet support because Microsoft felt it was not a high priority yet. Citing the importance of the U.S. market to the wireless industry, Nokia ultimately collaborated with AT&T, Microsoft, and chipset developer Qualcomm to accelerate the development of LTE support for the Windows Phone platform. At the same time, Nokia quickly produced prototypes for a new smartphone, the Lumia 900—which would be tailored for the American market and be one of the first Windows Phone devices with support for LTE. After only 10 months of development (a considerably faster pace than normal), the Lumia 900 was unveiled during a Nokia press conference at International CES in January 2012. The HTC Titan II, another LTE-enabled Windows Phone device, would also be unveiled during an AT&T event at CES.[8][9]

Hardware

The Nokia Lumia 900 has a 4.3-inch (109 mm) display and a ClearBlack AMOLED 800×480 capacitive touchscreen. It has a one-piece polycarbonate body and is available in black, cyan, magenta, and white.[3]

Though similar to the Lumia 800, which was never released in the United States, the Lumia 900 has numerous features differentiating it from the 800 in order to better meet the demands of American consumers. The 900 has a bigger 4.3" (109 mm) display with an RGB stripe pattern compared to the 800's PenTile pattern,[10] a substantially higher capacity battery, fourth generation network (4G LTE) support, and a front-facing second camera for video calling.[11][12]

Software

The Lumia 900 device comes with four Nokia-exclusive applications not included by the default Windows Phone OS: Nokia Drive, a free turn-by-turn navigation system; Nokia Maps; Nokia Music, a free streaming music service and music store; and App Highlights, a service suggesting software based on location and operator.[13] As of April 2012 it contains the following additional applications: Nokia Transport, a location-aware public transport schedule and navigation application; Creative Studio, a photo editing application; TuneIn Radio, a local and global radio streaming application; CNN, a news reader and video viewer for Cable News Network content; WRC Live, an application to follow live timing and media from the FIA WRC series.[14]

Diagnostic Tool

Just like the Lumia 800, the 900 has the diagnostic tool. It can be obtained by pressing ##634# on the dial keypad, which should initiate the download after the last # is pressed. The diagnostic tool should appear on the app list under Diagnostics.

On this diagnostic tool a user can run tests on the following: Accelerometer, ALS, audio loopback, camera, battery status, DTMF, gyroscope, hardware buttons, headset detection, LCD white, lights, life timer, magnetometer, power source, proximity, speaker, touch and vibration. It's also possible to perform all the tests in one run.

Note: This app does not harm the phone, It is an application used by device engineers to test functions of the phone to find whether a certain component is working properly. The app can be uninstalled if a user chooses to do so.[15][16]

Limitation to WP7

According to Microsoft, due to changes in platform architecture, WP7 phones are not upgradeable to Windows Phone 8, which was released in the fall of 2012.[17][18][19] Instead, Microsoft released Windows Phone 7.8, which includes some WP8 features for existing WP7 phones.[20][21][22]

Launch

In the US, Nokia and phone carrier AT&T Wireless had a big marketing splash for Lumia 900, which included a launch event in New York City 's Times Square. According to AT&T's representative, the campaign would be even bigger than those done for iPhone. The Lumia 900 was also given a flagship slot at the carrier, alongside the iPhone 4S and the HTC One X.[23][24]

Availability

United States

The device has been available for pre-order since March 30, 2012[25] for a cost of $99 mail-in rebate with a new two-year contract[26] with a minimum monthly voice package of $39.99 and a data plan of at least $20 a month, and an activation fee of $36,[27] and was released on AT&T on April 8, 2012, in cyan and matte black. The glossy white version was released on April 22, 2012.[28] On July 15, 2012, Nokia launched the pink/magenta version exclusive to AT&T stores.[29]

The same day that the magenta version was released, the price with 2-year contract was reduced by $50.[30] Jared Newman from Time (magazine) 's Techland wrote: "The further reduced price is a sign that the Lumia 900 isn’t doing as well as Nokia and Microsoft had hoped." and suggested "smartphone shoppers should ignore the $50 off, and wait to see if Nokia can do better next time."[31] During its first month of availability in April, the Lumia 900 was the second-best selling smartphone from AT&T after the iPhone 4, and it also topped Amazon's cellphone best-sellers list ahead of the Droid Razr Maxx and Galaxy Nexus. Sales momentum has since slowed down, such as at Best Buy where it was not doing as well as Android phones such as the HTC Evo 4G LTE and Samsung Galaxy S III.[32][33]

Canada

In Canada, the Lumia 900 has been available since April 10, 2012, exclusively through Rogers. Only the black and cyan versions of the phone are offered, other colors like the popular white and magenta versions are currently not available in Canada.

United Kingdom

The Lumia 900 was released mid-May through Phones4U,[34][35][36] and is also available through Carphone Warehouse.[37][38]

The UK model does not feature 4G LTE connectivity for high-speed packet access, instead, it only features 3G HSPA+,[3] which has speeds for the end user that are comparable to LTE. Other phone specifications remain the same.

Singapore

The Nokia Lumia 900 was sold starting from May 26, 2012, throughout all 3 carriers in Singapore, SingTel, Starhub and M1, at the recommended retail price of SGD $849 (USD $670). Like the UK model, the Asia model that is also sold in Singapore does not have 4G LTE connectivity as well.[39]

Australia

A press conference in Sydney detailed the release date of Nokia Lumia 900 on the Optus carrier as June 2012 on a specific Optus Plan, with a recommended retail price of A$699 (US$693).[40]

China

The Lumia 900 started shipping to China on June 14, 2012, along with a "Reaction" Bluetooth headset.[41][42]

Malaysia

The Lumia 900 was sold through Maxis carrier starting June 15, 2012.[43]

Model variants

Model RM-808 RM-823
Countries Mexico, United States International
Carriers/Providers Telcel, AT&T International
2G Quad band GSM/EDGE (850/900/1800/1900 MHz)
3G Quad-Band HSPA+ 1, 2, 5/6, 8 (850/900/1900/2100 MHz)
4G Dual-Band LTE 4 and 17 (1700/700 MHz) No
Max network speed LTE: 50 Mbit/s DC-HSPA+: 42 Mbit/s

Reception

Officially announced at the Consumer Electronics Show 2012, the Nokia Lumia 900 won CNET's Best of CES award for smartphones,[44] although in their review they agreed: "It won't outsell the Samsung Galaxy S II or iPhone 4S" where they highlight camera and call quality issues.[45]

With Nokia's large US-based launch in April 2012, a growing number of reviews have been written about the device.[24] Most reviews are positive about the device itself, and rather discuss in length the pros and cons of the new Windows Phone ecosystem.

Andy Ihnatko of Chicago Sun-Times wrote: "For the sort of user for whom a phone is simply an accessory to life and is neither the lens through which life is experienced nor the sword with which their daily battles are fought, the Lumia 900 and Windows Phone are worth wanting."[46]

Brian Caulfield of Forbes in his review wrote that "the Lumia 900 might be the best Windows handset yet, but it won’t break Apple and Android’s grip on the smartphone market."[47]

Joshua Topolsky of The Verge in his review wrote: "I've already said this, but it bears repeating. I really wanted to love this phone. From a design standpoint, the Lumia 900 was immediately enticing. I'd already been salivating over Nokia's N9 and Lumia 800, so knowing that a slightly larger (but more feature packed) version of that device was headed our way was fairly encouraging. But while the hardware — at least externally — delivers, the phone as a whole does not."[48]

Jeffrey Van Camp of Digital Trends in his review wrote: "If you’re looking for a good phone for a reasonable price, this is it. Just don’t expect the cutting edge. We’ll have to wait for Windows Phone 8 for Nokia devices that truly try to compete with Android and iPhone on specs."[49]

Sam Biddle of Gizmodo wrote that the Lumia 'Might Save Windows Phone' and that it is 'so quick and elegant' and that the screen 'absolutely sings', giving the phone 4/5 stars.[50]

Swiss newspaper 20 Minuten Online awarded the phone (along with the Lumia 800) as being the most beautifully designed handset, beating the Samsung Galaxy S3, the iPhone 4S and the HTC One X.[51][52]

Walt Mossberg of AllThingsD in his review wrote: "If you’re looking for a $100, high-end smartphone, or are a Windows Phone fan who has been waiting for better hardware, the Lumia 900 is worth considering. But the phone had just too many drawbacks in my tests to best its chief competitors."[53]

Taylor Martin of phonedog wrote: "The most disappointing feature of the Lumia 900 is the camera."[54]

Reported problems

  • Right after the U.S. launch of Lumia 900, the device was reportedly having connection problems,[55] which Nokia acknowledged, pinpointing the issue to a programming error in memory management. Nokia very soon rolled out a fix on April 13, 2012, three days earlier than originally planned.[56] Customers who purchased the phone prior to April 21, 2012, received an automatic $100 credit on their next AT&T or Rogers bill, a move from Nokia that was well received.[56][57]
  • On April 26, 2012, WinSource reported that the white Lumia 900 experiences a purple hue on low brightness.[58] Nokia fixed the issue with a software update.[59]
  • The proximity sensor had performance issues. Nokia fixed the issue with a software update.[59]
  • The camera button is not waking the phone up from its idle sleep state.[60]
  • The phone makes a harsh rattling sound when it vibrates.[60]
  • Nokia Monster Purity headphones have issues with the controls for pausing and skipping tracks and the volume rocker.[60]
  • The handset volume is quite loud even at the lowest setting of "1".[60] However, this is an issue experienced among all Windows Phones.
  • The MMS Settings for Canadian legally unlocked Lumia 900 phones is not available with the current hardware/software release. This issue is well documented within Nokia and may be corrected by downloading the "Network Setup" app from the marketplace which was made available again to Canadians in early 2013.

Successor

On September 5, 2012, the Nokia Lumia 920, the successor of the Nokia Lumia 900, was presented. The improvements are Windows Phone 8, dual core processor, a camera with PureView technology with 1080p video capture and image stabilization for still images and videos, wireless charging, 32 GB of storage, bigger screen with more resolution (4.5-inch 1280x768) and curved glass.[1]

See also

References

  1. ↑ 1.0 1.1 1.2 "Nokia Lumia 920 Specs and Features". http://techie-buzz.com/mobile-news/nokia-lumia-920-with-pure-view-technology-wp8.html. 
  2. ↑ Egwu, Izzi (June 20, 2012). "It's official: No WP8 for existing Lumia Phones, instead WP7.8 update". Nokia for Us. http://www.nok4us.com/2012/06/its-official-now-wp8-for-existing-lumia.html. 
  3. ↑ 3.0 3.1 3.2 "Nokia Lumia 900 Specifications". Nokia. http://www.nokia.com/global/products/phone/lumia900/specifications/. 
  4. ↑ Mukherjee, Sangeeta (January 11, 2012). "iPhone 4S vs. Lumia 900 – Nokia to Take a Bite Out of Apple?". International Business Times. http://www.ibtimes.com/iphone-4s-vs-lumia-900-nokia-take-bite-out-apple-393982. 
  5. ↑ Kolakowski, Nicholas (January 14, 2012). "Nokia's Lumia 900 Coming in March: Report". eweek. http://www.eweek.com/c/a/Mobile-and-Wireless/Nokias-Lumia-900-Coming-in-March-Report-510607/. 
  6. ↑ Collins, Katie (January 13, 2012). "Best of CES 2012 Awards winners revealed". CNET UK. CBS Interactive. http://crave.cnet.co.uk/gadgets/best-of-ces-2012-awards-winners-revealed-50006660/. 
  7. ↑ "Congratulations, Nokia, now get to work". http://www.cnet.com/8301-33370_1-57358141/congratulations-nokia-now-get-to-work/. 
  8. ↑ Cheng, Roger (December 18, 2012). "Nokia on the edge: Inside an icon's fight for survival". CNET. http://news.cnet.com/8301-1035_3-57559620-94/nokia-on-the-edge-inside-an-icons-fight-for-survival/. 
  9. ↑ "How AT&T, Nokia pulled Windows Phone into the 4G LTE world". CNET. http://news.cnet.com/8301-1035_3-57408903-94/how-at-t-nokia-pulled-windows-phone-into-the-4g-lte-world/. 
  10. ↑ Mundy, Jon (March 22, 2012). "Nokia Lumia 900 AMOLED vs Nokia Lumia 800 AMOLED — what's the difference?". NokNok.tv. http://www.noknok.tv/2012/03/22/nokia-lumia-900-amoled-vs-nokia-lumia-800-amoled-whats-the-difference/. 
  11. ↑ Dolcourt, Jessica (April 5, 2012). "Nokia Lumia 900 Review". CNET Asia. CBS Interactive. http://asia.cnet.com/product/nokia-lumia-900-45869683.htm. 
  12. ↑ "Nokia expands Lumia experience to new price points and geographies" (Press release). Nokia. February 27, 2012. Archived from the original on March 2, 2012. Retrieved April 12, 2012.
  13. ↑ "Nokia Collection being added to the Windows Phone Marketplace". January 31, 2012. http://www.wpcentral.com/nokia-collection-being-added-windows-phone-marketplace. 
  14. ↑ "Nokia Releases Creative Studio for Nokia Lumia Phones". March 19, 2012. http://news.softpedia.com/news/Nokia-Releases-Creative-Studio-for-Nokia-Lumia-Phones-259421.shtml. 
  15. ↑ David K. (April 20, 2012). "##634# Opens The Nokia Lumia 900 Diagnostic tool". Mobility Digest. http://mobilitydigest.com/634-opens-the-nokia-lumia-900-diagnostic-tool/. 
  16. ↑ EJ86 (April 15, 2012). "*STICKY POST* Nokia Lumia 900 Diagnostic tool". Windows® Phone Community Discussion — AT&T Community Support. AT&T. http://forums.wireless.att.com/t5/Nokia/STICKY-POST-Nokia-Lumia-900-Diagnostic-tool/m-p/3164083#M60946. [yes|permanent dead link|dead link}}]
  17. ↑ La, Lynn (June 20, 2012). "No Windows Phone 8 upgrade for current devices". CNET. CBS Interactive. http://news.cnet.com/8301-1035_3-57456655-94/no-windows-phone-8-upgrade-for-current-devices/. 
  18. ↑ "Mangels Apollo-Update: Telekom bietet Nokia Lumia 900 nicht an". teltarif.de. June 20, 2012. http://www.teltarif.de/telekom-nokia-lumia-900/news/47152.html. 
  19. ↑ "Windows Phone 7.8 für ältere Hardwaren". heise.de. June 20, 2012. http://www.heise.de/newsticker/meldung/Windows-Phone-7-8-fuer-aeltere-Hardware-1622631.html. 
  20. ↑ Hanon, Joseph (May 22, 2012). "Would you buy a phone if you couldn't update it?". CNET. CBS Interactive. http://www.cnet.com.au/would-you-buy-a-phone-if-you-couldnt-update-it-339338353.htm. 
  21. ↑ Thurrott, Paul (May 20, 2012). "WinInfo Short Takes: Will Microsoft, the Handset Makers, or Microsoft Support Upgrades to Windows Phone 8? Duh. No.". Supersite for Windows. Penton Media. http://www.winsupersite.com/article/paul-thurrotts-wininfo/wininfo-short-takes-april-20-2012-142888. 
  22. ↑ Kroker, Michael (June 6, 2012). "Microsoft plant Lösung für Update-Problem bei Windows Phone" (in de). Wirtschaftswoche. Verlagsgruppe Handelsblatt. http://blog.wiwo.de/look-at-it/2012/06/06/exklusiv-microsoft-plant-losung-fur-update-problem-bei-windows-phone/. 
  23. ↑ Cheng, Roger (December 18, 2012). "Nokia on the edge: Inside an icon's fight for survival | Mobile — CNET News". News.cnet.com. http://news.cnet.com/8301-1035_3-57559620-94/nokia-on-the-edge-inside-an-icons-fight-for-survival/. 
  24. ↑ 24.0 24.1 "AT&T Nokia Lumia 900 launch bigger than iPhone. Later The Nokia Lumia 900 got sold out in various stores in the US. Later became the second best selling phone after the iPhone on April and May 2012. according to Analyst.". March 29, 2012. http://www.phonesreview.co.uk/2012/03/29/att-nokia-lumia-900-launch-bigger-than-iphone/. 
  25. ↑ Colon, Alex (March 26, 2012). "Nokia Lumia 900 and HTC Titan II Coming to AT&T April 8". PC Magazine. https://www.pcmag.com/article2/0,2817,2402094,00.asp. 
  26. ↑ "Nokia Lumia 900 Review". March 31, 2012. http://newbestgadget.com/cell-phone/nokia-lumia-900-smartphone-windows. 
  27. ↑ Nokia Lumia 900 to hit AT&T on April 8th, Pre-orders begin on March 30th (Updated) | wpcentral
  28. ↑ Honig, Zach (March 26, 2012). "Nokia Lumia 900 to hit AT&T on April 8th with $100 price tag in tow (video)". Engadget. AOL. https://www.engadget.com/2012/03/26/nokia-lumia-900-att/. 
  29. ↑ Harris, Jason (July 9, 2012). "AT&T Exclusive: Lumia 900 is pretty in pink". Conversations by Nokia. Nokia. http://conversations.nokia.com/2012/07/09/att-exclusive-lumia-900-is-pretty-in-pink/. 
  30. ↑ Price of Nokia's Lumia 900 on AT&T Is Cut in Half - NYTimes.com
  31. ↑ Newman, Jared (July 17, 2012). "Nokia's Lumia 900: What Went Wrong". Time (magazine) (Time). http://techland.time.com/2012/07/17/nokias-lumia-900-what-went-wrong/. Retrieved August 6, 2012. 
  32. ↑ Chen, Brian X. (June 6, 2012). "At Best Buy, Lumia Is Selling O.K. but More Slowly Than Android". Bits. The New York Times Company. http://bits.blogs.nytimes.com/2012/06/06/best-buy-nokia-lumia-900/. 
  33. ↑ Cheng, Roger (June 13, 2012). "Just how well did Nokia's Lumia 900 do? | Mobile — CNET News". News.cnet.com. http://news.cnet.com/8301-1035_3-57449837-94/just-how-well-did-nokias-lumia-900-do/. 
  34. ↑ Johnson, Luke (May 11, 2012). "Nokia Lumia 900 UK on sale now". T3. http://www.t3.com/news/nokia-lumia-900-uk-release-date-set-for-may-14th. 
  35. ↑ "Nokia Lumia 900 UK Release Delayed". Gadgetnode. http://gadgetnode.com/nokia-lumia-900-uk-release-delayed/. 
  36. ↑ "Nokia Lumia 900 UK Release Confirmed as May 14". Know Your Mobile. http://www.knowyourmobile.com/blog/1337117/nokia_lumia_900_uk_release_date_confirmed_as_may_14.html. 
  37. ↑ "Nokia Lumia 900". Phones4u. 2012. http://www.phones4u.co.uk/nokia/lumia-900/. 
  38. ↑ "Nokia Lumia 900". Carphone Warehouse. 2012. http://www.carphonewarehouse.com/news/coming-soon/nokia-lumia-900. 
  39. ↑ "Nokia Lumia 900 Coming to Singapore on 26th May". Nokia Lumia 900. http://www.hardwarezone.com.sg/tech-news-nokia-lumia-900-hits-singapore-26-may. 
  40. ↑ "Nokia delivers next generation of devices in Lumia smartphone family" (Press release). Nokia. May 18, 2012. Archived from the original on June 23, 2012. Retrieved June 14, 2012.
  41. ↑ "Nokia Lumia 900 touches down in China" (Press release). Nokia. June 14, 2012. Archived from the original on June 17, 2012. Retrieved June 16, 2012.
  42. ↑ Murph, Darren (June 14, 2012). "Nokia ships Lumia 900 and Reaction Bluetooth Headset in China". Engadget. AOL. https://www.engadget.com/2012/06/14/nokia-ships-lumia-900-reaction-bluetooth-headset-in-china. 
  43. ↑ "Nokia Lumia 900 from as low as RM959 on Maxis". SoyaCincau. June 15, 2012. http://www.soyacincau.com/tag/nokia-lumia-900-malaysia-price/. 
  44. ↑ German, Kenneth (January 12, 2012). "Congratulations, Nokia, now get to work". CNET (CBC Interactive). http://ces.cnet.com/8301-33370_1-57358141/congratulations-nokia-now-get-to-work. 
  45. ↑ Dolcourt, Jessica (April 4, 2012). "Nokia Lumia 900 Review". CNET. CBS Interactive. http://reviews.cnet.com/nokia-lumia-900-review/. 
  46. ↑ Ihnatko, Andy. "Can Windows Phone — and Nokia Lumia 900 - take on iPhone, Android?". Chicago Sun Times. http://www.suntimes.com/technology/ihnatko/11730729-452/can-windows-phone-and-nokia-lumia-900-take-on-iphone-android.html. 
  47. ↑ Caulfield, Brian (April 3, 2012). "Lumia 900 Reviews: Best Windows Phone Yet, But No iPhone Killer". Forbes. https://www.forbes.com/sites/briancaulfield/2012/04/03/lumia-900-reviews-the-best-windows-phone-yet/. 
  48. ↑ Topolsky, Joshua (April 3, 2012). "Lumia 900 review". The Verge. Vox Media. https://www.theverge.com/2012/4/3/2921472/lumia-900-review. 
  49. ↑ Nokia Lumia 900 Review - Digital Trends
  50. ↑ Biddle, Sam (April 3, 2012). "Nokia Lumia 900 Review: This Might Save Windows Phone (Updated)". Gizmodo. Gawker Media. https://gizmodo.com/5898783/nokia-lumia-900-review-this-might-save-windows-phone. 
  51. ↑ "20 Minuten Rating". 20min.ch. http://www.20min.ch/community/rating/rating.tmpl?ratingid=2254. 
  52. ↑ Serban, Alex (May 14, 2012). "Nokia Lumia 900 Wins Design Vote Against The iPhone 4S". IT Pro Portal (Net Communities). http://www.itproportal.com/2012/05/14/nokia-lumia-900-wins-design-vote-against-the-iphone-4s/. 
  53. ↑ Personal Technology: Nokia Lumia 900 Review - Walt Mossberg - Personal Technology - AllThingsD
  54. ↑ The most disappointing feature of the Lumia 900 is the camera | PhoneDog
  55. ↑ Ziegler, Chris (April 9, 2012). "Lumia 900 suffering from data connection problems?". The Verge. Vox Media. https://www.theverge.com/2012/4/9/2935798/lumia-900-suffering-from-data-connection-problems. 
  56. ↑ 56.0 56.1 Lutz, Zachary (April 13, 2012). "Nokia Lumia 900 data connectivity fix available now, three days early". Engadget. AOL. https://www.engadget.com/2012/04/13/nokia-lumia-900-update-now-available/. 
  57. ↑ Ziegler, Chris (April 10, 2012). "Nokia confirms Lumia 900 data problem, offering exchanges and $100 credits; firmware update around April 16th". The Verge. Vox Media. https://www.theverge.com/2012/4/10/2939848/nokia-confirms-lumia-900-data-problem-offering-100-credits-and. 
  58. ↑ King, Ashley (April 26, 2012). "White Lumia 900 Experiencing Screen Problems on Low Brightness?" (Requires JavaScript for proper article view). WinSource. Neverstill. http://winsource.com/2012/04/26/white-lumia-900-experiencing-screen-problems-on-low-brightness/. 
  59. ↑ 59.0 59.1 Nokia issues update for Lumia 900 that fixes purple hue backlight issue | ZDNet
  60. ↑ 60.0 60.1 60.2 60.3 Rubino, Daniel (May 2, 2012). "Lingering issues with the Nokia Lumia 900: Purple screens, dead buttons & rattles". wpcentral. Mobile Nations. http://www.wpcentral.com/lingering-issues-nokia-lumia-900-purple-screens-dead-buttons-rattles. 

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