Tools
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So, what do we have here? This affordable smartphone offers some impressive specs at first glance:
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Qualcomm® Snapdragon Quad-Core with 1.2 GHz
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2 GB RAM and 16 GB ROM (and additional Micro SD for up to 64 GB)
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5 inch IPS Display with 1280x720 pixels
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13 megapixels camera with 1080P video recording at 30 fps
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USB OTG connection, a standard 3.5mm headphone jack, and an integrated Stereo FM Radio receiver
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Android 5.1 Lollipop
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Dual sim: 1 micro SIM + 1 nano SIM
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We line a shift5.1 (left) up next to our Wiko Pulp 4G and see some similarities in their designs.
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With the Wiko's official length measuring 143.9 mm from top to bottom, it is only 0.1 mm shorter than the shift5.1.
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We played a very simple game of smart phone Jenga with the phones to see how their widths and thickness...stack up to each other.
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Both have the same width: 72 mm. The Pulp4G, on top, is 8.8 mm thick, yet it appears thinner than the 7 mm of the shift 5.1, possibly due to its curved edges.
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The back cover has a different look but is the same kind of snap off.
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Starting with the easily removable back cover we begin our journey towards the inside of this smartphone.
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The only thing that remains inside the midframe is the rear facing loud speaker.
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We are happy to see that it connects to the motherboard via spring contacts, allowing easy replacements in the future.
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On the back of the display assembly we find the motherboard at the top section.
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We take a moment to rejoice when we see all those ZIF connectors and bracket-covered press connectors. Then, start swiftly unlocking and unplugging them one by one.
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First thing to come out is the small front facing camera which offers 5 megapixels.
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Second in line is the big brother for the rear facing side which provides 13 megapixels for full HD video recording.
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One of the display cables still clings to the motherboard but can be peeled off easily.
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Just two more Phillips screws to unscrew and we can take the board out for a close inspection.
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This is what makes the Wiko Pulp 4G tick:
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Qualcomm MSM8916 CPU with an ARMv8 Cortex-A53
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SK Hynix H9TQ17ABJTMC 2 GB RAM and 16 GB NAND flash storage
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Skyworks SKY77648-11 multimode multiband power amplifier module
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Qualcomm WTR4905 RF transceiver
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Qualcomm WCN3620 wireless connectivity IC
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SGMicro SGM3140B 500mA buck/boost charge pump LED driver
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IC Identification, Continued:
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Qorvo RF1496A SP12T Antenna Switch
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Skyworks SKY13416-485LF SP6T Antenna Switch
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Texas Instruments TPD1S414 USB Charger OVP Switch w/ ESD Protection
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ON Semiconductor NCP114AMX310T 300 mA/3.1 V LDO Regulator
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Silergy DC-DC Converters
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Likely Maxscend GNSS LNA
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Sensor identification:
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TDK Invensense MPU-6881 3-Axis Accelerometer/Gyroscope
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AKM Semiconductor AK09911 3-Axis Electronic Compass
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Rohm BU52021HFV Hall Sensor
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Proximity Sensor
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Behind the mother board we remove a rubber gasket that goes around the headphone jack and holds the lens for the LED flash.
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Last part at the top section is the earpiece speaker.
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At the bottom of the display assembly we find a daughter board with some components.
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First we disconnect the cable coming from the motherboard and pry out the vibrator.
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Next we peel off a small connector plate and disconnect the antenna cable.
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Now we are ready to carefully pry out the daughter board itself which is glued in with some double sided tape.
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Being able to detach the daughter board completely from the cable (and therefore from the mother board) is a big advantage over the shift5.1.
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On the other hand, all of the components are soldered to the board, which makes repairing them individually a bit trickier.
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USB port
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Vibrator
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Microphone
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Speaking of the connection cable, we peel off the big sticker and find the second display cable running underneath and directly into the display itself.
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With the sticker gone it is possible to also take away the power and volume buttons.
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We stop here, leaving the connector cable in place.
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Wiko Pulp 4G Repairability Score: 7 out of 10 (10 is easiest to repair)
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Replacing the battery is easy as pie with the swappable back cover.
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This phone doesn't use excessive glue nor proprietary screws—we found only Phillips throughout the entirety.
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Most of the components can be replaced separately.
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The motherboard and daughterboard are connected via a detachable cable.
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Unfortunately, the components on the daughterboard are soldered on, making a repair on an individual component difficult.
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