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iPhone 6 Troubleshooting: Apple Logo Appears 3 Times, Phone Dies - Software or Hardware Issue?

KarMixx 37467 13
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  • #1 16687735
    KarMixx
    Level 8  
    Posts: 191
    Rate: 44
    Hello, I got an iphone 6 which allegedly turned off and did not want to turn on, and so it is. The first inspection the phone was not dismantled, the computer sometimes detects it but the phone died, no reaction. But this morning I tried to run it and after 30 sec showed up 3 times the apple went out and that's it, again dead. What's the problem and where to start? Is this a software problem? Regards
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  • #2 16687775
    leonov
    Level 43  
    Posts: 8906
    Help: 1038
    Rate: 2232
    Recovery via itunes can?
  • #3 16687780
    KarMixx
    Level 8  
    Posts: 191
    Rate: 44
    There is a password on the phone and I can not do it through itunes: /
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  • #4 16687787
    leonov
    Level 43  
    Posts: 8906
    Help: 1038
    Rate: 2232
    So the phone is "cheaper" ;-)
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  • #5 16687796
    KarMixx
    Level 8  
    Posts: 191
    Rate: 44
    But I only know the password how to enter it if the phone does not start
  • #6 16687806
    RafalB

    Level 28  
    Posts: 1108
    Help: 91
    Rate: 221
    Play via DFU see if it will be OK if the process will end with an error. Verify the power consumption of the motherboard. Replace the screen and tape as well as the battery.
    Company Account:
    iFixThis
    Łowmiańskiego 18, Poznań, 60-685 | Tel.: 516XXXXXX (Show) | Company Website: https://www.instagram.com/ifixthis.pl/
  • #7 16687856
    KarMixx
    Level 8  
    Posts: 191
    Rate: 44
    Generally, I'm still learning so I have to understand it. How do you open the phone in dfu mode? And what kind of device to check the power consumption. I have 3 iphone 6 in the house so I checked on 3 batteries, one of them stronger, and on 3 displays.
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  • #8 16687924
    leonov
    Level 43  
    Posts: 8906
    Help: 1038
    Rate: 2232
    KarMixx wrote:
    How do you open the phone in dfu mode?
    No, some initiative http://bfy.tw/DoQ8
  • #9 16687975
    KarMixx
    Level 8  
    Posts: 191
    Rate: 44
    I preferred to have all the information on one topic and it would be good for others ;) after work I will work and what if dfu does not work?

    Added after 6 [hours] 7 [minutes]:

    "'Okay, I was able to enter DFU, the phone connected to itunes, but there is a problem, itunes stands all the time' waiting for the iphone '. What's wrong?
    Nothing appears on the screen.

    Added after 57 [minutes]:

    People have another information, warmed the plate lightly with a hot air gun and the phone resurrected, started normal to the start screen and then went out and again it could not be run so I warmed it up again and again worked for a few seconds. Now without heating once every 10 times will turn to apple and goes out.
    What is going on?
  • #10 16688623
    gsmowiec
    User under supervision  
    Posts: 552
    Help: 27
    Rate: 128
    KarMixx wrote:
    I preferred to have all the information on one topic and it would be good for others ;) after work I will work and what if dfu does not work?

    Added after 6 [hours] 7 [minutes]:

    "'Okay, I was able to enter DFU, the phone connected to itunes, but there is a problem, itunes stands all the time' waiting for the iphone '. What's wrong?
    Nothing appears on the screen.


    Without the diagnosis, no one is asking you what is damaged because it may be a problem with the drivers in your computer and it may also be a problem with nand or something else.
  • #11 16688642
    KarMixx
    Level 8  
    Posts: 191
    Rate: 44
    I tried to start the phone without the screen tape connected, the side thin, then the phone normally works and does not turn off, I plugged it on the phone switched on and the phone is still working for 10 minutes. Can I fix it?

    Added after 5 [minutes]:

    However, not entirely with the cable, which I described, does not turn on and without switching on iPhone 6 Troubleshooting: Apple Logo Appears 3 Times, Phone Dies - Software or Hardware Issue?

    Added after 12 [minutes]:

    What is the tape unpinned from?
  • #12 16688975
    gsmowiec
    User under supervision  
    Posts: 552
    Help: 27
    Rate: 128
    From the home button. When you bend the display with the tape attached, you will break it.
    I also see that you have some tacky Chinese batteries installed.
  • #13 16688994
    KarMixx
    Level 8  
    Posts: 191
    Rate: 44
    I know, but it's just for testing, I've got it on the market, but let's get back to the problem.
    Why does not I want to turn on when I string this tape?
  • #14 16689524
    RafalB

    Level 28  
    Posts: 1108
    Help: 91
    Rate: 221
    KarMixx wrote:
    Why does not I want to turn on when I string this tape?


    Because it's broken ;)

    Short circuit, flooding, mechanical damage.
    Company Account:
    iFixThis
    Łowmiańskiego 18, Poznań, 60-685 | Tel.: 516XXXXXX (Show) | Company Website: https://www.instagram.com/ifixthis.pl/
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Topic summary

✨ The discussion revolves around troubleshooting an iPhone 6 that repeatedly displays the Apple logo and then powers off. The user initially reports that the phone is unresponsive, with intermittent detection by a computer. Suggestions include attempting recovery via iTunes, entering DFU mode, and checking the power consumption of the motherboard. The user struggles with a password lock preventing iTunes access. After some attempts, the user successfully enters DFU mode but encounters issues with iTunes not recognizing the device. A temporary solution is found by warming the motherboard, which allows the phone to boot briefly. Further investigation reveals that disconnecting the screen tape allows the phone to function for a short time, indicating potential hardware issues such as short circuits or mechanical damage. The discussion highlights the importance of diagnosing the specific fault, whether it be software or hardware-related.
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FAQ

TL;DR: iPhone 6 that flashes the Apple logo 3 times and dies is in a boot-loop; one user also saw only 1-in-10 boots succeed. “waiting for the iPhone” in iTunes points to a DFU/comm issue. [Elektroda, KarMixx, post #16687975]

Why it matters: This FAQ helps DIY fixers diagnose whether the fault is software, a shorted flex, battery, or logic board so they can act fast.

Quick Facts

What does it mean when my iPhone 6 shows the Apple logo three times and shuts off?

That pattern indicates a boot-loop tied to hardware instability. In this thread, the device either looped the logo or died. A shorted flex or board fault is likely. “Because it’s broken” sums up the diagnosis when a flex prevents boot. Replace the damaged part to proceed. [Elektroda, RafalB, post #16689524]

How can I tell if it’s software or hardware?

If iTunes stays on “waiting for the iPhone,” suspect drivers on the PC, NAND/storage, or board-level faults. If heating or flex isolation changes behavior, hardware is implicated. Software-only faults rarely react to cable disconnects. Start with clean drivers, then isolate flexes. [Elektroda, gsmowiec, post #16688623]

Can DFU restore fix this if the phone has a passcode?

DFU connection was achieved here, but iTunes stalled at “waiting for the iPhone.” That shows DFU alone didn’t resolve the fault. Address hardware or communication problems first, then attempt restore. Passcode didn’t block DFU entry in the reported case. [Elektroda, KarMixx, post #16687975]

iTunes is stuck on “waiting for the iPhone.” What should I try next?

Treat this as a communication or storage-layer issue. Check USB drivers and cable, try another PC, then assess NAND or board. One expert noted it could be drivers or “nand or something else.” If multiple PCs fail, proceed to hardware diagnostics. [Elektroda, gsmowiec, post #16688623]

Heating the logic board makes it boot briefly—what does that imply?

Thermal changes temporarily restore marginal joints or components. In this case, warming revived the phone, but it shut off again. That suggests an intermittent board fault, not a pure software issue. Plan for hardware repair or micro-solder work. [Elektroda, KarMixx, post #16687975]

Which cable can stop an iPhone 6 from booting if it’s damaged?

The home-button flex. The thread shows booting resumed when that flex was disconnected. Reconnecting a damaged flex reintroduced the failure. Replace the flex or screen assembly if it’s torn or shorted. [Elektroda, gsmowiec, post #16688975]

Why does connecting the home-button flex kill the boot?

A shorted or mechanically damaged flex can pull down a line, halting startup. The recommended remedy was replacement, since root causes include short circuit, liquid, or physical damage. “Short circuit, flooding, mechanical damage.” [Elektroda, RafalB, post #16689524]

Is it okay to test with cheap third‑party batteries?

Low‑quality batteries complicate diagnosis and can mask faults. One responder called out “tacky Chinese batteries.” Use a known‑good, trusted battery to avoid chasing false leads during troubleshooting. [Elektroda, gsmowiec, post #16688975]

Should I measure motherboard power draw with a bench PSU?

Yes. Verifying board current helps separate shorts from software faults. A pro advised checking motherboard consumption and also swapping the screen, flex, and battery for control tests. This narrows the failure domain quickly. [Elektroda, RafalB, post #16687806]

Quick 3‑step isolation test for a shorted flex?

  1. Disconnect the home-button flex and attempt to boot.
  2. If it boots, keep the phone on, then reconnect the flex carefully.
  3. Observe if the phone keeps running; if it fails, replace that flex. [Elektroda, KarMixx, post #16688642]

Does replacing the screen assembly and home-button flex actually help?

It often does when a damaged flex causes the loop. An expert advised, “Replace the screen and tape as well as the battery.” Swap known‑good parts to confirm, then install new components. [Elektroda, RafalB, post #16687806]

I get one successful boot in 10 attempts—what does that statistic suggest?

A 10% success rate indicates marginal hardware. Intermittent shorts or failing joints can pass self‑tests sporadically. This aligns with the report: once every 10 tries the logo appeared, then it died again. Plan for hardware repair, not software. [Elektroda, KarMixx, post #16687975]

What is DFU mode, in simple terms?

DFU (Device Firmware Update) is a low‑level state that lets iTunes communicate to reinstall firmware. In the case discussed, DFU connected but restore didn’t proceed, reinforcing a hardware issue. Use DFU after hardware isolation. [Elektroda, KarMixx, post #16687975]

Edge case: It ran 10 minutes after reconnecting the flex—should I trust it?

No. Temporary operation after reconnecting a suspect flex signals intermittent failure. Expect it to relapse under movement, heat, or time. Replace the flex or assembly and retest before concluding the repair. [Elektroda, KarMixx, post #16688642]

Could this be NAND or logic-board damage instead of the flex?

Yes. A pro highlighted possible driver issues on the PC or a NAND/board problem. If multiple known‑good flexes and batteries still fail, escalate to board‑level diagnostics or service. [Elektroda, gsmowiec, post #16688623]
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