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Before beginning, ensure that the USB micro jack is the problem. Try a different USB cable or charger. See if you can identify damage to the jack without opening the device. It's a bit tough to see in the photo, but this micro USB jack has been damaged: it has only four of the five internal connectors.
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Remove the four screws that secure the back case. Gently pry off the back case, being careful not to crack it or bend the screen or mainboard. A flathead screwdriver may help with this task.
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Unscrew the three silver screws holding the mainboard in place. Flip up the plastic retainers that clamp the two ribbon cables into their connectors. Peel back any tape holding the cables or mainboard down. Then flip the mainboard over. Don't detach the wires leading to the battery or WiFi antenna! They are soldered to the mainboard.
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Remove the damaged micro USB connector, carefully, without damaging the mainboard or surrounding components. This is tricky. You'll want to heat it with a soldering iron, and gently pry it away from the board. You may need a helper to use pliers while you apply heat. Make sure to heat the contacts to avoid ripping the traces off the board!
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Attach the replacement micro USB connector. It helps to first clean the area with flux, and remove old solder from the traces. You'll want to gently bend the new connector's pins towards the board, and tin them and the board traces with solder in advance. Pop it into place, then heat the connector pins (not mounting posts) to secure it.
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Use a multimeter or continuity tester to ensure no traces are bridged or shorted. Four of the five connector pins lead to nearby test points on the mainboard (one pin in not connected to anything). If everything works, use solder and strong epoxy to fix the new connector in place. Do not get any solder or epoxy inside the connector!
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With the new connector installed, tested, and secured, reassemble the Kurio. Since the new connector is glued in place, future replacements will require a new mainboard. The correct micro USB connectors can be found on eBay.
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2 Commenti
Where can I buy the Micro USB Connector?
It is standard?
Suddenly my mobile cannot charged what problem
