iFixit - Answers With Device "Phone"

iPhone 6 Plus: 手机充电时屏幕是花屏，不充电就开不机

Wed, 17 Oct 2018 08:32:14 -0700

现在手机开不了机且机身有点弯，充电时屏幕是花屏状态但屏幕没裂，不知是哪里出问题，要怎么维修呢？

iPhone 6: [求助]iPhone 6 自动重启，可以开机，重启频率特别高

Wed, 17 Oct 2018 00:17:47 -0700

系统是iOS 12.0.1，症状是自动重启，有时候连续自动重启(白苹果->黑屏->白苹果->黑屏…..)。但是特别奇怪的是(下边说的第5点)，通过尝试发现，玩游戏或者播放喜马拉雅时手机肯定不会自动重启。

1) 已经通过iTunes刷固件很多次了，自动重启的问题依然存在，特别是在刷机中走进度条时特别容易自动重启，导致刷固件失败，得刷很多次才有可能成功一次。

2) 开机后，如果待机一小段时间(1、2分钟)，手机肯定会自动重启

3) 从app store下载app，过程中基本上会自动重启(概率大于80%)，大约需要尝试7、8次才能下载安装成功；如果通过电脑软件(同步助手或者xcode)安装app，手机不会重启

4) 输入解锁密码时，输入第6位数字后立即会重启，概率大约90%，需要尝试很多次，才会有一次不重启，所以我现在把手机密码关闭了

5) 玩游戏(王者荣耀)、播放音乐、播放喜马拉雅有声书的时间内，手机正常肯定不会重启。但是如果在播放喜马拉雅过程中进行下载app或者输入解锁密码，还是会自动重启

苹果店和电话客服都说是硬件坏了，但是说不出为什么玩游戏、放音乐的时候不重启。我个人认为，如果是硬件问题的话，不应该会有这种肯定不会重启的情况

有没有遇见我这种情况的，或者知道什么原因，是硬件问题还是软件问题

iPhone 5s: 屏幕出现一些横状条纹最大的占上半个

Sun, 05 Aug 2018 23:09:12 -0700

关闭屏幕再打开就会好转但玩一会后又会出现最初出现是因为手机过热后发现出现了这些条纹使得屏幕显示失真

HTC Evo 4G LTE: The application (process com.android.vending)has stopped unexpectedly?

Wed, 26 Nov 2025 06:18:25 -0700

Google Play was accidentally uninstalled. I reinstalled it and now get the error message, "The application (process com.android.vending) has stopped unexpectedly. Please try again." Is there a way to save my phone? It's running Android version 4.1. I've only had the phone 4 days.

⟐ Answered 十一月 26, 2025 at 6:18 GMT-7

Samsung GT-C3300K champ: I forgot my phone's password.

Fri, 23 Jan 2026 03:53:37 -0700

I have lost my password, and I can't use my phone without the password. How can I reset the password? Are there any general passwords?

⟐ Answered 一月 23, 2026 at 3:53 GMT-7

iPhone 4: How can I fix my disabled iPhone 4?

Sun, 26 Oct 2025 17:36:39 -0700

My brother's friend gave him an iPhone 4, and it's disabled. All we can do on it is slide the lock screen to call for an emergency. We've tried to connect it to iTunes and it's not working; it just says "error." At first, it said iTunes needs to be updated, so we updated it. Then it says "iTunes cannot connect to iPhone because it needs a passcode." It tells us to enter the passcode and try again, but the iPhone itself doesn't let us do that. I want to make the phone work for my brother.

⟐ Commented 十月 26, 2025 at 17:36 GMT-7

Samsung Galaxy Note II: My phone works but my screen is blank

Mon, 15 Dec 2025 04:33:27 -0700

My phone works, but my screen won't show anything. It is blank or black. What can I do to fix it?

⟐ Answer edited 十二月 15, 2025 at 4:33 GMT-7

Samsung Galaxy S5: Can't sign in to Samsung account after factory reset

Wed, 18 Mar 2026 05:47:08 -0700

I forgot my password and chose factory reset by turning my phone and holding volume up key, home button and power button together. It resulted in my phone being locked. But after reboot, it asks for Samsung account ID and password. While entering the ID and password, the processing fails and can't access my phone any more. I have reset my password several times, but still same result.

Someone can help me to resolve the issue.

⟐ Answer edited 三月 18, 2026 at 5:47 GMT-7

iPhone 4: iPhone 4 Disabled but cant connect to iTunes to fix it

Wed, 16 Jul 2025 14:16:00 -0700

I just got an iPhone 4. I set it up with a passcode so no one would go through it. My friend tried to unlock it, and now it's disabled to the point where I have to connect it to iTunes to enable it. I didn't have a chance to connect it to my iTunes before he did that. When I try to connect it to iTunes, it says that I have to remove the passcode, but I obviously can't. How do I fix this?

⟐ Commented 七月 16, 2025 at 14:16 GMT-7

iPhone 5s: I forgot my passcode, how do I remove it?

Mon, 14 Nov 2022 16:57:05 -0700

I forgot the passcode for my iPhone 5s, I tried entering the passcode multiple times and it says "iPhone is disabled Connect to iTunes".

Now I am locked out. How can I regain access?

iPhone 5S, iOS 7.1.2

⟐ Commented 十一月 14, 2022 at 16:57 GMT-7

Samsung Galaxy S II: How do I turn Safe Mode off?

Mon, 16 Jun 2025 09:49:29 -0700

My phone randomly goes into safe mode, and I don't know how or why. The first time this happened was after collecting it from a service center.

Please help.

⟐ Commented 六月 16, 2025 at 9:49 GMT-7

iPhone 5: iPhone says "This accessory may not be supported"

Thu, 03 Oct 2024 21:00:33 -0700

When I connect my iPhone to the charging cable, it vibrates and says something like, "The accessory may not be certified." I've tried a lot of cables, including original Apple cables, but the results are the same. I've also tried to put my motherboard into another working case, but it does the same thing. Do you know which IC can be broken on my logic board? Thank you.

⟐ Answered 十月 03, 2024 at 21:00 GMT-7

iPhone 5: Stuck in continuous apple logo loop, turns off when cable removed?

Wed, 26 Jun 2024 03:00:02 -0700

Hi there.

My iPhone 5 (model A1429) will not boot into iOS.

When the power cable is connected, the iPhone boots up initially and displays the apple logo for ~3.5 seconds. Then it goes to a blank screen for another ~2 seconds and the process repeats (indefinitely it seems - at least at this point).

When the power cable is removed, the screen instantly goes blank again. Nothing happens if I press the power button when the iPhone is not connected.

I can get the iPhone into recovery mode by holding the home button before I plug it in, and then it stays on the recovery screen, not coming on and off like the apple logo was earlier. Again, when I unplug the cable it goes back to a powerless blank screen.

The iPhone is detected on iTunes in recovery mode and I have attempted to restore it, using both my MacBook and a Windows PC. Each time, it results in an error at the point when the iPhone appears to restart. I see Error 2001 on the MacBook and Error 21 on the windows PC.

I've updated to the latest iTunes version, restarted the computer several times, and tried different USB ports.

I was also able to get the iPhone into DFU mode, where the screen was blank—but it was recognized in iTunes as being in recovery mode. Just as before, the device will not restore, and I get various error codes across my Mac and PC.

I have since opened the device up and confirmed that the battery is securely attached to the logic board.

It is also worth mentioning that my iPhone is no longer under warranty.

At this point. my assumption is that the battery itself is dead, and won't hold any charge, which is why the device shuts off immediately after removing the power cable. Does this seem reasonable and should I order a new battery? Any other suggestions?

Many thanks,

Bradley

⟐ Answered 六月 26, 2024 at 3:00 GMT-7

iPhone 5: Replacing logic board removes activation lock?

Wed, 26 Jun 2024 09:22:19 -0700

If I replace the logic board on my iphone 5, will it remove the activation lock? I bought the phone, and then it was locked. I would like to try this, but wont go ahead unless I know for sure.

⟐ Commented 六月 26, 2024 at 9:22 GMT-7

Blackberry z3: How to fix www.bberror.com/bb10-0015

Thu, 26 Aug 2021 09:45:09 -0700

my phone is not turning on

⟐ Commented 八月 26, 2021 at 9:45 GMT-7

ZTE ZMax: Why isn't my Camera working?

Tue, 26 Aug 2025 06:41:21 -0700

Everytime I open it," Unable to connect to camera,Camera has been disabled because of security policies or is being used by other apps" I tried fully reseting the phone but it still won't work. Thanx in advance.

⟐ Answered 八月 26, 2025 at 6:41 GMT-7

iPhone 5: frozen iPhone wont let me slide to unlock

Sun, 31 Jan 2021 05:51:10 -0700

My iPhone 5 screen has been frozen for like 2 days. It won't let me slide to unlock. I tried resetting it, and it still doesn't work. Please help!

Thank you.

⟐ Commented 一月 31, 2021 at 5:51 GMT-7

Samsung Galaxy S5: Why does my camera say, "Warning: Camera Failure"

Fri, 11 Oct 2024 02:42:38 -0700

My camera doesn't work. Whenever I open my camera app, a message appears saying, "Warning: Camera Failure" and the screen doesn't display anything.

⟐ Answered 十月 11, 2024 at 2:42 GMT-7

Samsung Galaxy S III: My camera keeps saying camera failed. How do I fix it?

Wed, 11 Sep 2024 09:15:53 -0700

Camera keeps saying camera failed. How do I fix it?

⟐ Answered 九月 11, 2024 at 9:15 GMT-7

iPhone 4: I can't hear my phone calls unless I put it on speaker.

Thu, 11 Dec 2025 10:07:46 -0700

I can't hear my phone calls unless I put my phone on speaker, but everyone can hear me fine—even if my iPhone is not placed on speaker. I've taken really good care of it and have only dropped it once, which was a few months ago. I just woke up the other morning after charging it, and it no longer works right. I've tried everything, including resetting it and placing half a Q-tip in the ear bud holder. I have an appointment at the Apple Store to have it checked out, but I live so far from the store that it would really be helpful for me to figure this out on my own. Does anyone know of a way to fix it? I would greatly appreciate it. =]

⟐ Commented 十二月 11, 2025 at 10:07 GMT-7