Дата выхода 19 сентября 2014 года. Это маленькая версия iPhone 6 Plus с 4.7-дюймовым экраном.

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iPhone 6 touch no working

Hi friends I hope you all go well

I have an iphone 6 that is falling into water

I desoxidation

The phone turns on but the touch does not work anymore

In your opinion which is damaged

Black ic touch (U2402)

White ic touch (U2401)

Отвечено! View the answer У меня та же проблема

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hi thinks for the rep

for test all circut

i use multimeter in continuity mod ???

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Выбранное решение

Was there any obvious corrosion around one of the IC's that would lead you to believe that one or other was more likely to be bad? Was there a lot of corrosion near the LCD/Digitizer FPC connectors? Sometimes the whereabouts of the corrosion can give you clues as to what part of the board to focus on first.

Otherwise, I would start at the "end" of the circuit and work my way back before swapping out IC's. Remember that changing IC's requires massive amounts of heat; there's always a risk of secondary damage.

  • Check the Digitizer and LCD FPC connectors on both the logic board and the screen. Some times there is a pin or two that get so corroded they do not make electrical contact anymore.
  • The check the filters and capacitors on LCM_TO_AP_HIFA_BSYNC_CONN, TOUCH_TO_SAGE_VCM_IN_CONN, PP_SAGE_LX and PN_SAGE_TO_TOUCH_VCPL_FILT.
  • Then check the voltage rails supplying the Touch circuitry PP5V1_GRAPE_VDDH, PP1V8_GRAPE, PN5V7_SAGE_AVDDN, PP5V7_SAGE_AVDDH and PP1V8

Once you have determined that there is no problems with the peripheral circuitry, I would start with Meson (Black) first, see if Touch returns and then try Cumulus (white).

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hi thinks for the rep

for test all circut

i use multimeter in continuity mod ???

от

When testing filters, check to see if they are open-circuit (they shouldn't). when testing voltage rails, first check to see if they are shorted (they shouldn't) then test under power to see if the proper voltage is present.

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Frankly I'm lost minho

I can not even test all the condensers

I'm lost you would have a tuto or other thanks minho

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Why can't you test the capacitors?

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To test capacitors I must remove the u2401 and u2402

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Mike Plouvin будет вечно благодарен.
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