Tablet · Amazon · Kindle Fire 7 5th Gen
Amazon Kindle Fire 7 5th Gen Charging Port Repair
Charging Port Repair guide for the Amazon Kindle Fire 7 5th Gen
Before you begin
Tools
- Plastic opening tool
- Guitar picks for prying
- Precision Phillips #00 screwdriver
- Spudger
- Tweezers
- Soldering iron
- Desoldering braid
- Heat gun or hair dryer
Parts / materials
- Replacement micro-USB port
- Solder flux
- Solder wire
- 99% Isopropyl alcohol
- Cotton swabs
Safety
- Wear safety glasses to protect your eyes from flux splatter and hot molten solder.
- Always disconnect the battery before applying heat or working on board circuitry.
- Work in a well-ventilated space or use a fume extractor to avoid inhaling solder fumes.
- Use an anti-static wrist strap to prevent static electricity from damaging sensitive board microchips.
Overview
Step-by-step
- 1
Power off the tablet
1 minPress and hold the power button until the screen prompts you to turn off the Kindle Fire. Select OK to completely shut down the device.
- 2
Pry open the back cover edge
2 minInsert a plastic opening pick between the outer plastic back cover and the front glass assembly near the top edge. Twist gently to release the plastic retention clips.
- 3
Unclip the perimeter of the back cover
3 minSlide the opening pick around all four edges of the tablet casing to unlatch the remaining clips. Use a second pick if the clips attempt to snap back closed.
- 4
Remove the back cover
1 minLift the plastic back cover straight up and set it aside. The internal components and motherboard are now exposed.
- 5
Peel back protective Kapton tape
1 minLocate black or amber tape covering the battery connector and motherboard flex ribbons. Carefully peel and remove the tape using tweezers.
- 6
Disconnect the battery cable
2 minInsert the flat edge of a spudger beneath the battery wire connector block. Pry straight up to safely disconnect power from the motherboard.
- 7
Disconnect the display ribbon cable
2 minFlip up the small locking ZIF lever on the display cable connector using a spudger. Slide the flexible ribbon cable out of its socket.
- 8
Disconnect the digitizer ribbon cable
2 minFlip open the retention latch on the touch digitizer ZIF connector. Gently pull the ribbon cable out away from the board.
- 9
Unplug the speaker wire assembly
2 minGrasp the tiny speaker wire plug close to the socket with fine tweezers. Pull the plug horizontally out of its connector on the motherboard.
- 10
Remove motherboard mounting screws
3 minUse a Phillips #00 screwdriver to remove the four silver screws securing the motherboard to the plastic housing. Keep these organized for reassembly.
- 11
Lift out the motherboard
2 minGently lift the motherboard from the plastic frame starting from the top edge. Ensure no loose ribbon cables snag on the board while removing it.
- 12
Apply flux to charging port pads
2 minApply a small amount of liquid flux across the four structural anchor posts and the five micro-USB data/power pins on the damaged port.
- 13
Heat and desolder anchor pins
5 minApply a heated soldering iron tip along with desoldering braid to the structural anchor pins on the micro-USB port to remove factory solder.
- 14
Remove the damaged charging port
3 minGently heat all micro-USB pins using hot air or a chisel iron tip until solder turns liquid. Lift the damaged port off the board with tweezers.
- 15
Clean motherboard solder pads
3 minLay fresh desoldering braid over the contact pads and heat with the iron to remove leftover solder. Wipe the area clean with isopropyl alcohol and a cotton swab.
- 16
Position the new micro-USB port
2 minAlign the replacement micro-USB port pins precisely over the clean motherboard contact pads. Ensure all side legs seat flat into their thru-holes.
- 17
Tack down port anchor legs
3 minApply fresh solder to the structural side legs of the port to lock it securely onto the circuit board.
- 18
Solder power and data pins
5 minApply flux and a tiny dab of solder onto each of the five electrical pins using a fine conical iron tip. Verify no solder bridges exist between adjacent pins.
- 19
Reseat the motherboard into frame
2 minPlace the motherboard back into the lower housing, aligning the new charging port perfectly with the cutout on the outer frame edge.
- 20
Fasten motherboard screws
3 minThread and tighten the four Phillips #00 screws back into the motherboard to secure it to the frame.
- 21
Reconnect display, digitizer, and speaker flexes
3 minInsert the display and digitizer ribbon cables into their sockets and press down their locking latches. Plug the speaker connector back into its receptacle.
- 22
Reconnect the battery cable
2 minPress the battery cable plug firmly down into its socket on the motherboard until it snaps into place.
- 23
Snap the back cover into place
2 minAlign the back cover over the tablet frame and press down firmly around all edges until all plastic clips snap fully closed.
After your Amazon Kindle Fire 7 5th Gen charging port repair
Power the Kindle Fire 7 5th Gen back on and test the charging port repair function before you put every screw away. Check touch/display response, charging, cameras, buttons, and wireless as relevant to this repair. If something fails after closing the device, reopen carefully and reseat the connectors for this Amazon Kindle Fire 7 5th Gen job before assuming the part is defective. Keep leftover adhesive and screws labeled in case you need a second pass.
Keep learning
Explore more Amazon Kindle Fire 7 5th Gen repair context in the encyclopedia, or open related DIY guides.

