iPhone 6

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The iPhone 6 is the first iPhone with pull tab adesive under the batteries and Apple rerouted the Touch ID cable reducing the chances of destroying the fingerprint sensor when opening the phone.


Models
Model Type Modem Region
A1549 6
A1586 6
A1589 6
A1522 6+
A1524 6+
A1593 6+

iPhone does not turn on[edit | edit source]

iPhone 6 is notorious for being the slimmest iPhone ever made (see Bendgate[1]). This, combined with the softer aluminum alloy used, causes the phone to micro-bend in the pocket, eventually causing components such as the CPU to become dislodged on the motherboard and stop functioning.

This issue had been mitigated in iPhone 6s with a thicker, harder alloy used for the body.

The touch screen is unresponsive or not working[edit | edit source]

If the screen is completely intact but somehow the touch screen is unresponsive and/or the top bar is flickering, it the issue is very likely not the screen's digitizer but an IC on the motherboard so replacing the screen won't work. Some viable temporary solution could be applying some pressure on the IC using some paper or heating the motherboard (to try to melt the solder under the IC). A more permanent solution will require replacing the motherboard or replacing the Two Touch IC.

iPhone boots to Apple logo, turns back off[edit | edit source]

This is taken from a blog post in 2018[2].

Symptoms:

  • Turns on and shows the Apple logo for roughly 2 minutes and 10 seconds, then turns back off.
  • Does not turn back on by itself (not a boot loop).
  • Turns on without being plugged in and draws current when both on/off (not a battery issue).
  • Does not show up in iTunes EXCEPT when placing it in DFU mode.
  • In DFU mode, the serial number of the iPhone shows as NA in iTunes.

Solution:

  1. Put it in recovery mode:
    1. Plug the phone in to turn it on.
    2. Hold the home button down until recovery mode is entered (this can take minutes). Letting go any earlier would cause it to turn off instead of entering recovery mode.
  2. After entering recovery mode, the iTunes logo with the data cable icon appears on the screen. The phone can then be recognized in iTunes to continue with restore or upgrade.
  1. ↑ iPhone 6 – Bendgate (chassis bending) – Wikipedia
  2. ↑ Corrupt iPhone 6 – Data Recovery - Victor Lin

FPC Connectors diode mode readings[edit | edit source]

Use these diode mode maps as a guide to troubleshoot a problem. You must use the RED PROBE on ground and the BLACK PROBE on the pin you are measuring.

For example: you are troubleshooting a no backlight situation, so you probe the pins on the display FPC that correspond to backlight. If a pin says you should read 0.65 and you are reading OL or a short to GND then that's where you need to go.

If instead of getting 0.65 you read 0.58, move on to the next one, remember every multimeter is different and even slight differences in temperature affect this readings. What you are looking for is extreme differences in values, if you are expecting some value and you get a short to ground that is where it is more likely to be your issue.

iPhone 6[edit | edit source]

Display connector (J2019)[edit | edit source]
Diode mode for iPhone 6 Display connector. Top Right goes to top edge of the board, under the rear camera.
Touch Connector (J2401)[edit | edit source]
iPhone 6 Touch connector. Top right goes to top edge of the board.
Battery connector (J2523)[edit | edit source]
iPhone 6 battery connector. Bottom left goes to the edge of the board, next to the bottom of the battery.
Charge port / dockflex Connector (J1817)[edit | edit source]
iPhone 6 charge port / dockflex connector diode mode readings. Bottom right goes to bottom of the phone, where the loudspeaker is.
Home button, TouchID Connector (J2118)[edit | edit source]
iPhone 6 home button / TouchID connector. Top right goes to the top of the board, under the rear camera.
Rear camera Connector (J2321)[edit | edit source]
iPhone 6 rear camera connector. Top right goes to the top of the board, under the rear camera.
Front camera, proximity sensor, earspeaker, ambient light sensor connector (J1111)[edit | edit source]
iPhone 6 front flex connector. Contains front camera, proximity sensor, ambient light sensor, earspeaker. Top right goes to top of the board, under the rear camera.
Volume and Power buttons, flashlight, ringer switch (J0801 and J0802)[edit | edit source]
iPhone 6 Volume, power buttons, ringer switch and flaslight connector. Top left goes to top edge of the board, next to the mute/ringer switch.

iPhone 6 Plus[edit | edit source]

Display connector (J2019)[edit | edit source]
iPhone 6 Plus display connector. Top right goes to top of the board, under the rear camera.
Touch Connector (J2401)[edit | edit source]
iPhone 6 Plus touch connector. Top right goes to top of the board, under the camera.
Battery connector (J2523)[edit | edit source]

No original data as of yet, use iphone 6 instead.

Charge port / dockflex Connector (J1817)[edit | edit source]
iPhone 6 Plus charge port / dock flex connector. Bottom left goes to edge of the board, next to bottom of the battery.
Home button, TouchID Connector (J2118)[edit | edit source]
iPhone 6 Plus home button connector. Top left corner goes to top right of the board, under the rear camera.
Rear camera Connector (J2321)[edit | edit source]
iPhone 6 Plus rear camera connector. Top right goes to top of the board, under the rear camera
Front camera, proximity sensor, earspeaker, ambient light sensor connector (J1111)[edit | edit source]
iPhone 6 Plus front camera, proximity sensor, ambient light sensor, earspeaker connector. Top right goes to top edge of the board, under the rear camera.
Volume and Power buttons, flashlight, ringer switch (J0801 and J0802)[edit | edit source]

No original data as of yet, use iphone 6 instead.

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