Sửa lỗi mất sóng nokia lumia 620 625 630 635 650 640 640xl

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It"s a time of change. The Nocơ we"ve sầu known ever since di động phones first appeared has finally been acquired by Microsoft & is now officially a subsidiary of Microsoft"s Devices Group, which handles the Xbox và Surface product lines. The Lumia 630 is the first new phone out the door since the khuyến mãi went through, but it"s obviously been under development for quite a while. Still, it"s obvious that things have sầu changed - subtly but surely, this is the start of something new.

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The dual-SIM version of the Lumia 630 has launched in India, và it"s the first device to run the new Windows Phone 8.1 update. Interestingly, it isn"t a clear replacement for the Lumia 6trăng tròn - it"s a bit cheaper than the 6trăng tròn was at launch, but is also in a lower segment.

With new hardware and new software khổng lồ boast of, the Lumia 630 could be quite potent package. Let"s take a closer look.

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Look & FeelNotê seems lớn have been able khổng lồ come up with dozens of variations on the same theme: colourful polycarb shell, blaông chồng front face, buttons all on one side, and simple lines, but different shapes & curves. The 630 is no exception, although this time the shape is more flat và blocky than usual. It"s a clean rectangle with sides that taper towards the back, making it fairly easy khổng lồ grip. The rear bulges only very slightly.

Our đánh giá sample had a matte-textured trắng shell. It"s definitely nothing lượt thích the high-gloss finishes we"ve seen on some other Lumias, and unfortunately it began picking up dirt và scuffs from almost the first time we set it down on a table.

The front face is blank apart from a Nokia biệu tượng công ty up top, since navigation is taken care of by on-screen soft keys now. The power button and volume rocker are on the right edge, but there"s no camera shortcut key now. The left edge is totally blank, and the top & bottom have only the headset jack and Micro-USB port each. The baông chồng is almost completely blank, with only the camera lens và a round speaker hole to be seen, apart from a faint Notê logo in the middle.

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We don"t usually concern ourselves with the boxes that phones come in, but we have khổng lồ note that Nokia (rather, Microsoft Devices), has switched to a flat, Trắng thiết kế, ditching the blocky blue rectangles we"ve seen with every Lumia release so far. More to the point, the Lumia 630 does not come with a headmix or even a USB cable. The charger has a fixed wire with a Micro-USB plug, và we really have sầu to lớn wonder how much money the company will save sầu by not shipping a standard charger head with a removable USB cord.

Features & specificationsThe Lumia 630 has a powerful enough processor, the trusty Qualcomilimet Snaprồng 400. It"s a 1.2GHz quad-core system-on-a-chip with integrated Adreno 305 graphics. There"s only 512MB of RAM which is a significant step down from the 1GB found in the cheaper Lumia 525.

As other manufacturers have done recently, Notê has used a dedicated processor for sensor đầu vào which allows the main SoC to lớn power down and save battery life. The SensorVi xử lý Core, as it"s called, ties in to the Bing Health và Fitness tiện ích which can act as a pedometer and activity tracker. This won"t be a big feature for the Lumia 630 considering it lacks advanced sensors, but higher over devices such as the upcoming Lumia 930 will take better advantage of it.

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You get 8GB of built-in storage space, which is somewhat offphối since Notê says up lớn 128GB microSD cards are supported. The screen is 4.5 inches diagonally, but has a lowly resolution of 480x854 pixels. This is by far the lowest px density we"ve sầu seen in a long time, và it"s very evident at first glance that this is not a premium chất lượng display at all. It"s duller than we"ve sầu come lớn expect from Notê, with less-than-impressive colour accuracy & poor viewing angles. The Windows Phone interface isn"t terribly grainy, but text in apps & on websites reminds us of what used to lớn be considered high-quality a decade ago.

The screen is proportionately a bit taller than the one on the Lumia 525, và its resolution is very slightly greater than 16:9 which is a good thing because a bit of vertical space is lost lớn the on-screen buttons (which are almost permanently visible).

Wi-Fi và công nghệ Bluetooth không dây support is up lớn date, and there"s also GPS. The only sensor seems to lớn be an accelerometer - there isn"t even an ambient light sensor khổng lồ help adjust screen brightness automatically. All in all, the Lumia 630 has a somewhat unbalanced danh mục of features - it"s outclassed in some areas by other phones in its price range.

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SoftwareThe biggest story of course is Windows Phone 8.1. Microsoft"s update is fairly significant, with plenty of improvements both major and minor. The one thing Microsoft can boast about abroad is Cortana, its version of a voice-based intelligent assistant, but that it doesn"t work in India. Tweaks to get it running vày exist, but for all practical purposes, this isn"t a feature to take inkhổng lồ consideration yet.

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The other visible change is - finally - the addition of a notification shade, which Microsoft has named Action Centre. Just lượt thích in Android and iOS, you can swipe downwards from the very top of the screen to lớn pull down an overlay which displays notifications you haven"t dealternative text with yet. When you pull down the Action Centre shade, you"ll see expanded information about your notification bar icons, such as the battery cấp độ in percent. There are also four handy shortcuts: Wi-Fi, Bluetooth không dây, Camera and Brightness, và you can swap these out for other choices, but can"t have sầu more than four.

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The brightness control is handy since the Lumia 630 doesn"t adjust it automatically, and the camera shortcut somewhat makes up for the loss of the dedicated physical button. We would have liked to have sầu had more shortcuts, but have sầu khổng lồ make vày with clicking through to the Settings app.

The much-publicised background pholớn option only works well with some photos, and if you arrange your Start screen tiles carefully. Simple patterns work better than actual photos. You can also fit a third column of large tiles, but this looked terrible on our Lumia 630 thanks khổng lồ the low-res screen.

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The Lumia 630 is the first dual-SIM Windows Phone, so there are a few quality touches in this regard. For starters, there are two distinct phone và messaging apps, which is a very odd and potentially confusing way to handle things. The icons for each SIM card are only slightly different in colour (& the first mix goes transparent if you use the new background phokhổng lồ option). You"ll have to lớn khuyễn mãi giảm giá with fragmented gọi history lists and inboxes, although the tương tác danh mục is shared và you can choose khổng lồ sover a message or make a điện thoại tư vấn from a different SIM even from the other SIM"s apps. This could help keep work and personal communications separate, but not everyone will lượt thích this approach.

There are a new few apps & tweaks too - Battery Saver does exactly what it sounds like & lets you kiểm tra which apps have sầu been draining your battery the most. Data Sense allows users to define cellular data usage limits, and Wi-Fi Sense is a chất lượng tool that can automatically sign you in khổng lồ password-protected Wi-Fi hotspots that your friends have sầu used in the past. Yet another tool called Storage Sense lets you manage apps, clear caches và swap things around between the internal storage & microSD thẻ.

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Less visible are tweaks to the keyboard, which now lets you drag a finger between letters, Swype-style. Skype và OneDrive sầu are more deeply integrated, and Internet Explorer has received a few improvements under the hood. While a lot of common complaints have been addressed, the Windows Phone experience is still not without its own unique problems. The on-screen buttons are visible even when playing video clip full-screen, the Bachồng button still behaves illogically, & the Marketplace is still highly lacking, compared to the Google Play store & iOS App Store.

Nocơ had a proud tradition of improving upon Microsoft"s work even further. The Lumia 630 comes with a mix of additional features collectively known as Lumia Cyan, which includes an extended phối of photography apps. Also present are Nokia"s other trademark features, Here Maps, Here Drive+, & Nokia MixRadio. Surprisingly, the highly useful Glance screen, which in other Lumia models lets you see notifications while the screen is off, has been cut out.

The Lumia 630 comes with a lot of third-tiệc ngọt apps too: BoxTV, Evernote, Facebook, Flipkart Ebooks, Gameloft Gamehub, Line, PayTM, and Zomalớn.

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CameraNocơ always throws in a lot of camera apps, và this time we have Cinemagraph, Creative sầu Studio, và Glam Me for a variety of effects ranging from animation to lớn face enhancement. Options in the Nocơ Camera app include shutter speed và manual focus, and you have quiông xã access lớn ISO and white balance settings.

We were very impressed with the photos we took in daylight. The details và clarity were good enough to make us think our test shots had been taken with phones which cost twice as much. Things weren"t as great indoors, and we saw noise increase drastically even in pictures of our well-lit office floor. Photos taken at night were full of noise và lacked detail. Video was blocky and compressed, with an artificial chất lượng lớn it.

We would have been grateful for a flash, but we didn"t miss having a front camera as much. At this price point, a front camera would be so low quality that we"d rarely use it anyway.

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(Cliông chồng khổng lồ see full size)

PerformanceAs expected, Nokia và Microsoft"s curious decisions regarding the Lumia 630"s configuration made a big impact on the device"s performance. The biggest issue we ran inkhổng lồ was that some tests, such as GFXbench, simply could not be installed thanks to the low amount of RAM. Users will face this problem with other apps as well. The two companies might have sầu decided that 512MB was enough for WP8.1, but again, we wonder how much it would have hurt to go with 1GB.

Benchmark scores in other tests, such as SunSpider and the Windows Phone version of AnTuTu were slightly higher than or at par with those for comparable WP8.0 phones, such as the Lumia 525, but well below those of the mid-range Lumia 13đôi mươi.

The interface feels smooth enough, but Web browsing was a bit laborious & even non-HD video clips often felt jittery. We aren"t confident that the Lumia 630 will hold up for more than a year or two, especially if you load it up with apps, and if future OS updates require beefier specifications.

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The screen"s low unique was very apparent when watching videos. It isn"t completely terrible, but we"re now used to lớn at least 720x1280, & there is a perceptible difference.

Battery life was impressive sầu at just a shade over 11 hours in our video clip loop thử nghiệm. We"re confident that we could use this phone intensively through a full day of work và not be left scrambling lớn find a power outlet.

VerdictWe"re happy with most of the improvements we"ve sầu seen in Windows Phone 8.1, but there is still work lớn be done. We hope minor issues such as the always-on soft buttons are taken care of soon, và we look forward lớn spending more time with the Sense tools. That said, we have a few reservations when it comes to lớn the Lumia 630 itself.

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It"s a solid workhorse phone with good construction unique và phenomenal battery life, & of course the assurance of Nokia"s brvà name and dealer/service network are big plusses. It"s also stylish, and some people do respond very well to lớn Windows Phone"s quality look. What it comes down lớn is the Lumia 630"s fairly quality combination of capabilities - if you like Windows Phone và need a dual-SIM device with a large screen, you"ll be happy with it. If you care about gaming, movies or longevity, you should seriously think of spending just a little more money for a better device.

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The step down to 512MB RAM và the absence of a flash are inconvenient, not dealbreakers, but customers who choose Android phones in the same price b& won"t have to make similar compromises. Moreover, there are also far better phones such as the Moto lớn G which cost only very little more. We feel as though the Lumia 630 will be more competitive sầu once its price drops by around Rs. 1,000 - 2,000.


Chuyên mục: Tin Tức