iPhone 3GS GPS Antenna Replacement
Carefully detach the GPS antenna connector, then remove the antenna from its mounting location, ensuring you observe the specified torque of 1.5 Nm when reinstalling it and utilizing the 5mm hex key.
Step 1 | Broken Glass
To avoid injury and contain shattered fragments while you work, secure any cracked display glass with tape.
Completely cover the iPhone's screen with overlapping strips of clear packing tape to protect the display surface.
To prevent glass fragments from scattering and maintain stability during the display separation process, this technique is essential.
To safeguard your eyes from potential glass fragments released during the repair process, always use safety glasses.
Completely cover the iPhone's screen with overlapping strips of clear packing tape to protect the display surface.
To prevent glass fragments from scattering and maintain stability during the display separation process, this technique is essential.
To safeguard your eyes from potential glass fragments released during the repair process, always use safety glasses.
Step 2 | Remove the bottom screws
Using a Phillips #00 screwdriver, detach the two screws, each measuring 3.7mm, located at the dock-connector end of the iPhone.
Step 3 | Loosen the display
For improved handling and safety, detach the metal handle from the suction cup; gripping the base of the suction cup directly is recommended.
Exercise extreme caution during iPhone disassembly to prevent damage to the delicate display cables.
A rubber gasket is situated where the silver front bezel meets the black display assembly; separation of the iPhone’s display assembly necessitates applying moderate force, and rocking a suction cup in a back-and-forth motion can aid in its removal.
Carefully lift the lower edge of the iPhone's display assembly by applying gentle upward force with a suction cup positioned close to the Home button.
When the display assembly's surface prevents proper suction cup attachment due to damage, secure it with a robust adhesive tape, like duct tape or packing tape, to ensure a firm hold.
Exercise extreme caution during iPhone disassembly to prevent damage to the delicate display cables.
A rubber gasket is situated where the silver front bezel meets the black display assembly; separation of the iPhone’s display assembly necessitates applying moderate force, and rocking a suction cup in a back-and-forth motion can aid in its removal.
Carefully lift the lower edge of the iPhone's display assembly by applying gentle upward force with a suction cup positioned close to the Home button.
When the display assembly's surface prevents proper suction cup attachment due to damage, secure it with a robust adhesive tape, like duct tape or packing tape, to ensure a firm hold.
Step 4 | Pull up the display
Several cables secure the display assembly to the iPhone’s internal components; avoid complete separation at this stage.
Tilt the display assembly upwards, achieving roughly a 45-degree angle.
Tilt the display assembly upwards, achieving roughly a 45-degree angle.
Step 5 | Disconnect cable 1
Before fully separating the display assembly from the iPhone, be aware that multiple cables maintain the connection and premature removal could cause damage.
Tilt the display assembly upwards, achieving roughly a 45-degree angle.
Using one hand to secure the display assembly, employ a spudger with your other hand to carefully detach the ribbon cable identified as "1"—this cable specifically connects to the display.
To prevent damage requiring display replacement, carefully slide the spudger in from the left side, positioning it beneath the ribbon cable, as illustrated. Attempting to lift the ribbon from the right risks damaging the ribbon connector.
Tilt the display assembly upwards, achieving roughly a 45-degree angle.
Using one hand to secure the display assembly, employ a spudger with your other hand to carefully detach the ribbon cable identified as "1"—this cable specifically connects to the display.
To prevent damage requiring display replacement, carefully slide the spudger in from the left side, positioning it beneath the ribbon cable, as illustrated. Attempting to lift the ribbon from the right risks damaging the ribbon connector.
Step 6 | Disconnect cable 2
Adjust the display assembly's orientation to a near-vertical position to simplify the process of disconnecting the remaining cables.
Carefully detach the ribbon cable identified as "2"—which connects to the capacitive touch panel—using a spudger.
Carefully detach the ribbon cable identified as "2"—which connects to the capacitive touch panel—using a spudger.
Step 7 | Disconnect cable 3
Certain international (Chinese, European) 3G models lack the plastic tab used to release the ribbon cable; instead, manually slide the cable toward the display to detach it. During reassembly, ensure the ribbon cable is firmly pressed into its connector.
Connector "3" on certain iPhone models exhibits an inverted color scheme, featuring a black plastic tab and a white connector; ensure correct tab elevation to prevent connector damage.
Employ a spudger to lift the white plastic tab, which secures ribbon cable "3" by rotating it upward 90 degrees, thereby disengaging the cable.
Carefully disconnect the black ribbon cable by sliding it from its connector, then detach the display assembly from the iPhone.
Connector "3" on certain iPhone models exhibits an inverted color scheme, featuring a black plastic tab and a white connector; ensure correct tab elevation to prevent connector damage.
Employ a spudger to lift the white plastic tab, which secures ribbon cable "3" by rotating it upward 90 degrees, thereby disengaging the cable.
Carefully disconnect the black ribbon cable by sliding it from its connector, then detach the display assembly from the iPhone.
Step 8 | Remove the SIM card tray
Using a SIM eject tool or a straightened paper clip, gently push into the small aperture located adjacent to the headphone jack.
Apply pressure to the tool, ensuring it extends the SIM card tray until it disengages.
Using your fingers, carefully extract the SIM card tray from the iPhone by sliding it outward.
Apply pressure to the tool, ensuring it extends the SIM card tray until it disengages.
Using your fingers, carefully extract the SIM card tray from the iPhone by sliding it outward.
Step 9 | Disconnect cable 4
Carefully detach the ribbon cable identified as "4" using a spudger.
Step 10 | Disconnect cable 5
Carefully detach the ribbon cable identified as "5" using a spudger.
Step 11 | Disconnect cables 6 and 7
- Carefully detach the ribbon cable identified as "6" using a spudger.
- For iPhone 3GS models, consult the visual guide in the second image and employ a spudger to release the ribbon cable identified as "7".
- Carefully ensure the ribbon cable connectors are precisely matched to their corresponding sockets on the motherboard before applying any force; visual inspection with a magnifying glass or jeweler's loupe may be necessary.
Step 12 | Remove the logic board screws
- Using the appropriate screwdriver, detach the eight screws.
- The logic board is affixed to the rear case using five screws; each is 2.3 mm in length, features a Phillips #00 head, and has partial threads.
- The logic board and camera are fastened together using two screws; each is a full-thread Phillips #00 screw, measuring 2.3 mm in diameter.
- Locate the "Do not remove" sticker and, underneath it, you will find a 2.9 mm Phillips #00 screw.
When putting the device back together, ensure all components are correctly aligned and secured, referencing the original disassembly steps and diagrams to maintain proper fit and function.
The camera is secured by a metal strip affixed with the orange-highlighted screw located on the bottom right side.
Before securing the camera with the fully threaded Phillips #00 screw, measuring 2.3 mm, ensure the strip is correctly positioned.
Step 13 | Loosen the camera
- Carefully leverage the camera assembly from its rear case housing using a spudger, applying gentle force.
Due to its connection at the logic board's base, complete camera removal is currently not possible.
Step 14 | Remove the logic board
- Carefully lift the logic board's edge, near the dock connector, using a spudger.
Due to its proximity to the 'do not remove' label, the logic board's small, gold-colored grounding tab is fragile and susceptible to damage. Exercise extreme caution to prevent this tab from catching on the device's case during logic board removal, as breakage occurs readily. Post-removal signal issues may indicate a damaged ground tab, requiring inspection.
Verify that each of the screws holding the logic board in place has been completely unscrewed if you encounter resistance when attempting to raise the board.
Step 15
- Carefully advance the logic board in the direction of the dock connector to disengage it from the iPhone's chassis.
Before securing the logic board within the iPhone enclosure following battery replacement, attach the camera connector to the board. Ensure proper alignment of the logic board’s upper portion—specifically, the area housing the SIM tray—prior to fully positioning the board. Failure to do so may result in SIM card slot misalignment. After the top section is correctly situated, the remaining portion of the logic board can be carefully positioned. Verify correct installation by confirming the SIM tray aligns with the iPhone case opening and the camera module is fully and correctly seated.
Step 16 | Loosen the battery
Carefully align the 4mm hex key to the setscrew, ensuring it engages fully, then gradually tighten the setscrew to a torque of 1.5 Nm using the torque wrench.
- Carefully lift the battery away from the rear case using a spudger, noting that it is secured by an adhesive strip running along its edges.
- Employing solely the provided plastic pull-tab to detach the battery risks causing deformation; therefore, avoid this practice.
- Disconnecting the battery isn't required when replacing the GPS antenna; however, doing so provides additional clearance for headphone assembly removal, though complete removal of the headphone assembly isn't essential for the antenna replacement.
- The iPhone battery is secured to the rear enclosure using a low-strength adhesive; this adhesive typically separates during battery removal. If your new battery has pre-applied adhesive, no further action is needed. Otherwise, carefully move the adhesive from the original battery to the replacement battery.
- To release a stuck battery, carefully introduce a small amount of isopropyl alcohol with a concentration exceeding 90% between the battery and the device casing; permit approximately one minute for the adhesive to soften due to the alcohol's action. Then, utilizing the spudger's flat end, gently pry the battery free, ensuring the alcohol completely evaporates before proceeding with the new battery installation.
- To avoid damage, do not use excessive force when removing the battery. If the adhesive is still holding, add a small amount of alcohol to help loosen it. Ensure the pry tool does not bend, break, or penetrate the battery casing during the process.
- Applying gentle heat to the case's rear surface with a hair dryer or heat gun, set to its minimum temperature, softens the adhesive securing the battery, making it easier to detach the battery from the case back with a spudger.
- To prevent battery ignition, avoid exposing the iPhone to excessive heat.
Step 17 | Headphone Jack
Carefully align the 4mm hex key to the setscrew and tighten it to a torque of 1.5 Nm using the torque wrench.
- Using a Phillips #00 screwdriver, detach the on/off switch from the front bezel by unscrewing the two screws that hold it in place.
- Verify the switch's extension during replacement; a tiny plastic spacer is affixed inside the button and can detach during cleaning. Absence of this spacer may prevent sufficient button projection for activation. Should the spacer be lost, substitute with a piece of rigid plastic material having a comparable thickness, such as a section from a shirt box lid.
Step 18
Using a 5/32-inch hex key, carefully tighten the four mounting screws securing the fan assembly to the motor housing, ensuring each is snug but not over-tightened to avoid damaging the plastic threads; observe a torque of 3.5 inch-pounds per screw.
Gently lift the flexible, multi-wire orange cable away from the back cover.
Exercise extreme caution when handling the ribbon cable, as it is susceptible to damage.
Gently lift the flexible, multi-wire orange cable away from the back cover.
Exercise extreme caution when handling the ribbon cable, as it is susceptible to damage.
Step 19
Using a 5/32-inch hex key, carefully tighten the four retaining screws on the motor assembly to a torque of 3.5 inch-pounds, ensuring the motor remains securely positioned and avoiding over-tightening that could damage the threads.
Using the appropriate screwdriver, detach the four screws.
Using the appropriate screwdriver, detach the four screws.
- To detach the rear case, remove the three Phillips #00 screws—each measuring 1.8 mm—that fasten the headphone jack and GPS antenna. Pay close attention to the sequence of removal, as the screw on the left side features a noticeably larger head.
- A plastic loop, situated close to the headphone jack, secures a 3.8 mm Phillips #00 screw.
Step 20
Carefully align the 4mm diameter dowel pins with their corresponding holes in both the upper and lower chassis halves, then gently press the two sections together until they are flush, ensuring no gaps exist and avoiding damage to the pins.
Using a Phillips #00 screwdriver, detach the four screws that hold the volume and mute switch in place.
The mute switch is located directly beneath the volume switch assembly; during disassembly, carefully retain the small, pliable cushioning pad affixed to the mute switch, as its absence will result in a loose fit upon reassembly.
Ensure the mute switch is set to "off" while tightening its screws. Verify the switch's extension when activated; insufficient projection suggests misalignment of the assembly. Inspect the space between the switch frame and bezel—specifically, the visible gap between the two screws located near the 6 o'clock position—to confirm proper placement. Note that one screw is longer than the remaining three and account for this during reassembly.
Using a Phillips #00 screwdriver, detach the four screws that hold the volume and mute switch in place.
The mute switch is located directly beneath the volume switch assembly; during disassembly, carefully retain the small, pliable cushioning pad affixed to the mute switch, as its absence will result in a loose fit upon reassembly.
Ensure the mute switch is set to "off" while tightening its screws. Verify the switch's extension when activated; insufficient projection suggests misalignment of the assembly. Inspect the space between the switch frame and bezel—specifically, the visible gap between the two screws located near the 6 o'clock position—to confirm proper placement. Note that one screw is longer than the remaining three and account for this during reassembly.
Step 21
Gently separate the volume button's electrical components from the iPhone's side, then meticulously detach the orange ribbon cable from the back cover, exercising caution as it's delicate and prone to damage.
Step 22
Gently raise the headphone jack assembly from its position within the iPhone, ensuring no components are damaged.
To facilitate installation of the replacement mute button, slide the green mute switch to the muted position, moving it downward toward the rear of the iPhone.
To facilitate installation of the replacement mute button, slide the green mute switch to the muted position, moving it downward toward the rear of the iPhone.
Step 23 | GPS Antenna
Using a Phillips #00 screwdriver, detach the black plastic spacer by unscrewing the single 2.4mm screw that holds it in place.
If the replacement rear panel lacks a pre-tapped screw hole at this specific point, it will require modification.
If the replacement rear panel lacks a pre-tapped screw hole at this specific point, it will require modification.
Step 24
Carefully leverage a spudger to disengage the black plastic antenna housing from the rear panel.
Carefully disengage the GPS antenna's black plastic enclosure from the iPhone.
Carefully disengage the GPS antenna's black plastic enclosure from the iPhone.