Qué necesitas
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Seven tech specs about the Nexus 7? Sure, we can do that!
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1.5 GHz Qualcomm Snapdragon S4 Pro processor
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7-inch 1920x1200 IPS LCD screen
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2 GB of RAM
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Adreno 320 GPU
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5 MP rear-facing camera
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1.2 MP front-facing camera
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Android 4.3 Jelly Bean
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Comparing the second generation Nexus 7 to the first, we notice a drastic change in body type.
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The second generation (left) is thinner, narrower, and taller than its beefier predecessor, and lacks texture on the rear panel.
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Other obvious changes include the addition of a rear-facing camera, and an upgrade to stereo sound. There are now three grilles (serving two speakers): two at the base, and one up top.
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It also appears that while the micro USB port remains in place, the headphone jack has been…transported.
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The second round of rejoicing commences as the only tool we need to open this tablet is a plastic opening tool.
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Goodbye patience, goodbye warped glass, goodbye thermal opening—instant gratification for the win!
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And…we're in, but not surprised. The first glance reveals a huge battery, the standard for tablets these days.
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But wait! There's more? An inductive charging coil?
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Although inductive charging has been around for a while, this is the first time we've seen it in a tablet since the HP TouchPad. We're pleased with the trend, as it may help eliminate wires as a source of e-waste in the future. Now, if we could only make batteries infinitely rechargable...
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The NFC Module is layered on top of the inductive charging coil.
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Time to set our trusty connector-seeking spudger loose to free the battery from its bonds.
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Seals cover two of the screws in the Nexus 7—one on each of the main boards—so replacing either board will likely void your warranty.
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The battery tray comes out, no problem.
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The tray is held in place by only a few screws (yay!), but the battery is secured to the tray with pretty sticky adhesive (boo!).
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The battery is rated at 3.8 V, 15 Wh, 3950 mAh, with a charging voltage of 4.35 V and is made by Celxpert Industrial.
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It's time for the daughterboard to leave the nest; seals can't hold her captive forever. The board houses a single IC nested among the connectors.
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ELAN eKTH325BAWS, which we guess to be the capacitive touchpad controller from ELAN's eKT line.
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Flushed with teardown fever, we pluck the motherboard from the casing, as well.
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The front- and rear-facing cameras are easy pickings.
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If you happen to see bigfoot and need to take a picture with your new Nexus 7, you'll be getting a 5 MP image.
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The hardware powering this nifty trick of a tablet:
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Qualcomm APQ8064 Snapdragon S4 Pro Quad-Core CPU (includes the Adreno 320 GPU)
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Elpida J4216EFBG 512 MB DDR3L SDRAM (four ICs for 2 GB total)
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Analogix ANX7808 SlimPort Transmitter
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Texas Instruments BQ51013B Inductive Charging Controller
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Qualcomm Atheros WCN3660 WLAN a/b/g/n, Bluetooth 4.0 (BR/EDR+BLE), and FM Radio Module
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SK Hynix H26M52003EQR 16 GB eMMC NAND Flash
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Qualcomm PM8921 Quick Charge Battery Management IC
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The updated speakers come out next.
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What do we know about these speakers?
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They're stereo.
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They sound cool.
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They are labeled DN17128L000.
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Here we find the rear of the front panel, home to the Wi-Fi antennas.
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We take small steps and find wireless frequencies are made possible by contacts to the outside universe.
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What does the universe say?
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ME571K_WIFI_3DC
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Nexus 7 2nd Generation Repairability Score: 7 out of 10 (10 is easiest to repair)
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The rear case is very easy to open, and requires minimal prying effort with a plastic opening tool to remove... But we cracked it, even though we were quite careful during the opening procedure.
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All fasteners inside are Phillips screws—no security or proprietary screws here.
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While the battery enclosure is easy to remove, some patient spudgering will be necessary to peel the battery off the tray.
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The front glass is adhered to the display frame, meaning you'll need a heat gun to get the LCD out—or replace the whole front panel.
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43 comentarios
You say this is the first inductive charging plate you've seen in a tablet, but the HP Touchpad must have one in order to use the HP's Touchstone® charger.
"Although inductive charging has been around for a while, this is the first time we've seen it in a tablet since the HP TouchPad." Since is the keyword there.
Andrew -
One of the surprises I had was the the original Nexus7 did not have a microphone-in as the 4-th? ring on the Headphone Jack so that there was no convenient way to use an external microphone to get louder/more directional... sound into the Nexus7, did you check to see if this had been "fixed" in the Nexus7.1?
Also, by the lack of any comments, I assume that there were no other ports in the 7.1 system, but that I have heard that there is some way to drive a HDMI display via hardware connection?
It does in fact, have a headphone jack that supports headsets / microphones.
Protonus -