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<title><![CDATA[iFixit - Answers With Device &quot;iPhone 4&quot;]]></title>
<link>https://jp.ifixit.com/Answers/Device/iPhone_4?rss=yes</link>
<description><![CDATA[Top Questions according to your query. Only showing &quot;iPhone 4&quot; questions.]]></description>
<language>en-US</language>
<pubDate>Wed, 22 Apr 2026 14:58:14 -0700</pubDate>
<item>
<title><![CDATA[iPhone 4: I need a battery connector bypass tutorial]]></title>
<description><![CDATA[<p>I am looking for anyone with any info on how to EXACTLY walk me through a battery connector bypass. Either, using bypass wires or another method. Any way that's most effective. I am not interested in sending my phone to someone, or interested in a person telling me that his/her shop sees that all the time and can fix it for me. Can anyone help me? I have a soldering kit and some soldering experience.</p>

<p>⟐ Commented 11月 01, 2018 at 12:32 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/107582/I+need+a+battery+connector+bypass+tutorial</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/107582</guid>
<pubDate>Thu, 01 Nov 2018 12:32:29 -0700</pubDate>
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<title><![CDATA[iPhone 4: Can't hear phone ring]]></title>
<description><![CDATA[<p>Why can't I hear my phone ring but I can hear my music play</p>

<p>⟐ Commented 9月 02, 2016 at 5:14 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/154915/Can&#039;t+hear+phone+ring</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/154915</guid>
<pubDate>Fri, 02 Sep 2016 05:14:37 -0700</pubDate>
</item>
<item>
<title><![CDATA[iPhone 4: How to fix "This accessory is not optimized for this iPhone” error?]]></title>
<description><![CDATA[<p>I get this error every few minutes and the audio from the external speaker doesn't work except for the alarm clock.  The external speaker will begin to work only when docked.  Audio from the headphone jack still works fine all the time, though.</p>

<p>The issue started happening about two days after a water incident.  I was at work in the basement with the phone in my jean pocket and had to run through a little water that was spraying over the walkway from a broken pipe. I only got a little wet, but now after researching the error and seeing how it could be related to water damage, I'm thinking some water may have got inside the connector because it had a greenish look to it.</p>

<p>After cleaning the connector out and wiping the green away, many resets, and restoring the phone, I still have the same issue.  From comments around the web, I've read that simply cleaning the connector got rid of the error for a lot of people.</p>

<p>What further steps I should take? If I was to open the phone, where could the source of the issue be, other than the connector itself?</p>

<p>⟐ Answer edited 6月 01, 2016 at 14:29 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/49143/How+to+fix+%22This+accessory+is+not+optimized+for+this+iPhone%E2%80%9D+error</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/49143</guid>
<pubDate>Wed, 01 Jun 2016 14:29:44 -0700</pubDate>
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<title><![CDATA[iPhone 4: Proximity Sensor Reversed Somehow]]></title>
<description><![CDATA[<p>I currently did a white iphone 4 conversion and now the proximity sensor is reversed.  While on a call, the screen stays on when placed to my ear and the screen would go black when I take it away.  What would cause this?  I followed your instructions to the &quot;T&quot;.  Could it be the product that whiteiphone4now.com is selling, something I did during disassembly and re-assembly, or is it a iphone software/hardware thing?  There is a silver film behind the white glass front where the proximity sensor would read.  Could this be the problem?  FYI, I did not have this problem when the phone was stock.</p>

<p>⟐ Answer accepted 4月 10, 2018 at 19:12 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/25747/Proximity+Sensor+Reversed+Somehow</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/25747</guid>
<pubDate>Tue, 10 Apr 2018 19:12:39 -0700</pubDate>
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<item>
<title><![CDATA[iPhone 4: earpiece not working but loudspeaker or earbuds do]]></title>
<description><![CDATA[<p>iPhone 4- Headphones or earbuds still work when plugged in.  Loudspeaker at base works if speakerphone chosen.  Earpiece has suddenly stopped working.  Had been using headphones just prior.  Is this a function of the headphone jack not releasing the sound circuit back to the earpiece or the earpiece itself just died?  So do I need a headphone jack assembly or just an earpiece speaker?</p>

<p>⟐ Commented 9月 02, 2018 at 1:21 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/115230/earpiece+not+working+but+loudspeaker+or+earbuds+do</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/115230</guid>
<pubDate>Sun, 02 Sep 2018 01:21:49 -0700</pubDate>
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<item>
<title><![CDATA[iPhone 4: After taking apart phone, slight pressure on the lcd causes rainbows]]></title>
<description><![CDATA[<p>I first thought this was related to 3RD party LCD/Digitizer panels but recently took apart a phone and just replaced the dock and didn't touch the LCD. When it is all back together and you put slight pressure on the glass you get rainbow colours as if there is a pressure point behind the LCD.</p>

<p><a href="http://ntsstudios.com/previews/IMG_0480.jpg" rel="nofollow noopener noreferrer" title="http://ntsstudios.com/previews/IMG_0480.jpg">http://ntsstudios.com/previews/IMG_0480....</a></p>

<p><a href="http://ntsstudios.com/previews/IMG_0481.jpg" rel="nofollow noopener noreferrer" title="http://ntsstudios.com/previews/IMG_0481.jpg">http://ntsstudios.com/previews/IMG_0481....</a></p>

<p>⟐ Answered 7月 28, 2014 at 18:15 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/68358/After+taking+apart+phone,+slight+pressure+on+the+lcd+causes+rainbows</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/68358</guid>
<pubDate>Mon, 28 Jul 2014 18:15:41 -0700</pubDate>
</item>
<item>
<title><![CDATA[iPhone 4: lcd bleed but no glass damage]]></title>
<description><![CDATA[<p>I recently did a screen replacement and customer came back a few days later saying &quot;there's black marks on my screen&quot; upon inspection I discovered the LCD was cracked and bleeding, but there was no damage to the glass, he agreed it was cracked and left without arguing, though said &quot;I don't know how I couldve done that It's been in my pocket the whole time&quot; now weeks later I just got a call from him saying he consulted with &quot;professionals&quot; and they assured him it was definitely a defective screen... Any opinions on this?  If that's the likely answer then I'll be happy to give him a new screen (though I doubt my supplier will feel the same way) but if there's a way that he could have broken the lcd underneath without breaking the glass, like from pressure putting it in an otterbox or keys pushing against it in his pocket, then I'm at a loss as to what to say/do.  What would you guys say or do?</p>

<p>⟐ Commented 1月 16, 2023 at 23:14 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/146610/lcd+bleed+but+no+glass+damage</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/146610</guid>
<pubDate>Mon, 16 Jan 2023 23:14:37 -0700</pubDate>
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<title><![CDATA[iPhone 4: Baseband Chip broken, error -1. Need knowledge on replacing chip]]></title>
<description><![CDATA[<p>Hey guys,</p>

<p>I have recieved and old water damaged iphone from a friend that she now has no use for. I and trying to fix it in my spare time.</p>

<p>The phone was lost outside in her yard for the whole winter and recovered the next year. I have taken the motherboard and cleaned it with isopropyl alchocol. The phone works almost perfectly besides the baseband issues.</p>

<p>I originally got the phone restored, and it was on the phone activation screen. I could not activate due to carrier lock. I then got her to come over to try her SIM card and this is when it still didnt work. I assumed there was something wrong and tried restoring it. I got it restored and the phone now said connect to itunes. Itunes continuily could not activate the phone and kept giving me the error message '' cannot continue with activation at this time.....&quot;</p>

<p>I then went for another restore, only to get error -1. I read about this error and tried all solutions. The furthest I have gotten was I hacktivated the phone and got it turned on completely. This gave me the ability to check eveythings working behaviour. EVERYTHING still works besides the always searching for service and there is no baseband information in settings.</p>

<p>I believe this is a baseband chip failure. I would like to know all possible solutions that could work. I am willing to solder and rip apart the motherboard because this is just a phone for my spare time.</p>

<p>Thanks,</p>

<p>Josh</p>

<p>⟐ Commented 12月 15, 2018 at 22:02 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/139372/Baseband+Chip+broken,+error+-1.+Need+knowledge+on+replacing+chip</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/139372</guid>
<pubDate>Sat, 15 Dec 2018 22:02:13 -0700</pubDate>
</item>
<item>
<title><![CDATA[iPhone 4: Where to order a back panel for my iPhone 4?]]></title>
<description><![CDATA[<p>Where can I order a back panel? My Iphone 4 back panel cracked and I need to replace it. Somebody please help!</p>

<p>⟐ Answered 3月 24, 2014 at 20:29 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/22419/Where+to+order+a+back+panel+for+my+iPhone+4</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/22419</guid>
<pubDate>Mon, 24 Mar 2014 20:29:42 -0700</pubDate>
</item>
<item>
<title><![CDATA[iPhone 4: How to clean iPhone speakers?]]></title>
<description><![CDATA[<p>I just recently dropped the bottom portion of my Iphone 4 into a bowl of duck sauce...yes duck sauce..-__-. I tried to thoroughly clean it with a q tip and a brush, like apple told me to, and now the speakers sounds nasty. They sound scratching and not as clear as they used to. Any ideas as to how to fix this? Are my speakers permanently damaged from the duck sauce? Or is it just interfering with the sound? Please help...</p>

<p>⟐ Answered 8月 27, 2023 at 21:13 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/34178/How+to+clean+iPhone+speakers</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/34178</guid>
<pubDate>Sun, 27 Aug 2023 21:13:14 -0700</pubDate>
</item>
<item>
<title><![CDATA[iPhone 4: I drop my iPhone into cooking oil, and I can't talk clearly]]></title>
<description><![CDATA[<p>i work as a chef, and i drop my iphone into the cooking oil, everything works fine only the microphone and the speaker got trouble.</p>

<p>the sound from loudspeaker lil bit unclear, and when i make a call, my partner can't hear my voice clearly n so weak sound.</p>

<p>any want can help please,.what should i do ?</p>

<p>⟐ Answered 4月 10, 2021 at 22:49 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/38493/I+drop+my+iPhone+into+cooking+oil,+and+I+can&#039;t+talk+clearly</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/38493</guid>
<pubDate>Sat, 10 Apr 2021 22:49:29 -0700</pubDate>
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<title><![CDATA[iPhone 4: no sound while recording video]]></title>
<description><![CDATA[<p>If I'm correct the upper mic is the one that records the sound for videos and the speaker during calls.</p>

<p>This mic is not working. What can I do to fix this?</p>

<p>The mic works perfectly during calls (no speaker), while recording audio on whatsapp, and recording voice memos. So I know the problem is the upper microphone and not the lower microphone.</p>

<p>How do I fix it?</p>

<p>Thank you.</p>

<p>⟐ Commented 7月 14, 2016 at 20:29 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/174575/no+sound+while+recording+video</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/174575</guid>
<pubDate>Thu, 14 Jul 2016 20:29:16 -0700</pubDate>
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<item>
<title><![CDATA[iPhone 4: iPhone 4 screen goes dark if brightness is set to 80%+]]></title>
<description><![CDATA[<p>I have had my iPhone 4 for over a year now, and suddenly the screen of my iPhone 4 GSM started to go almost totally dark if I set the brightness level higher than around 3/4 of the bar. The touch screens keeps working, I hear the sounds of locking or unlocking it, I can enter the apps, etc. If I press the sleep/wake button I see a flash of the lockscreen but it goes dark in a second. After a few tries of hard-reboot the device pressing both buttons and getting the same dark screen, I tried to set the brightness level lower by &quot;blindly&quot; entering settings, imagining where the brightness control is located and sliding down the bar (all this I did with the screen totally black), somehow I got it and after pressing the sleep button the lockscreen appeared and I was able to see the homescreen again. So I started playing with the brightness control and in fact it happens when I set it to a very bright level, and it works if I don't let go the control, slide it back to the left of the backlight bar, lock the screen and unlock it.</p>

<p>I fully restored the iphone, and tested it without installing any app, and the problem remains. I have read that many people have issues with the proximity sensor, but this doesn't seem to be the case, the sensor actually works fine with the phone app, and this never had happened before.</p>

<p>Do I need to change the LCD or any other part? Any suggestions?</p>

<p>⟐ Answered 7月 01, 2016 at 14:43 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/62874/iPhone+4+screen+goes+dark+if+brightness+is+set+to+80%25+</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/62874</guid>
<pubDate>Fri, 01 Jul 2016 14:43:32 -0700</pubDate>
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<title><![CDATA[iPhone 4: Where can I buy a 16gb iPhone 4 logicboard?]]></title>
<description><![CDATA[<p>Hello,</p>

<p>where can i buy a 16gb iPhone 4 logicboard without simlock??</p>

<p>On ebay there is just one seller, who sell it for 445€, he is crazy?</p>

<p>⟐ Commented 10月 02, 2015 at 1:28 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/38999/Where+can+I+buy+a+16gb+iPhone+4+logicboard</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/38999</guid>
<pubDate>Fri, 02 Oct 2015 01:28:41 -0700</pubDate>
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<title><![CDATA[iPhone 4: Phone makes continual clicking sound]]></title>
<description><![CDATA[<p>My phone is making a clicking sound about every 30 seconds (extremely annoying!). Took the back off and it sounds like the noise is coming from the upper left-hand corner, just below the camera (or around that area).</p>

<p>I have looked at forums online to try and find a fix but everyone else says that when they apply pressure to the phone it makes the sound. My phone CONTINUES clicking at a regular interval.</p>

<p>Also, my battery has been draining at almost 10 times the speed! I have to charge it 2-3 times a day.</p>

<p>What I need to know is what part I need to replace or how to maintenance it?</p>

<p>or if anyone knows how to troubleshoot this issue</p>

<p>⟐ Commented 10月 29, 2023 at 15:03 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/98239/Phone+makes+continual+clicking+sound</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/98239</guid>
<pubDate>Sun, 29 Oct 2023 15:03:42 -0700</pubDate>
</item>
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<title><![CDATA[iPhone 4: iPhone4 WONT CHARGED! no thunder bolt no other explenation]]></title>
<description><![CDATA[<p>hi! i hv my iphone over a year. yesterday, when i wanted to charge it and i plugged it in, it just not charged. no thunder bolt symbol no other explanation such as &quot;not supported charge device&quot; or somthing like that, just nothing, like it isnt charged. i tried the hard restart (pushing the lock button and home button together for 8 secs) but it still wont charged when i plugged it in. then i leave it with the charger still plugged on my phone for about an hour then i checked it again, the battery was increasing! but just like 2 percent and still no thunderbolt symbol. so slow! must i change the battery ? what should i do to fix it ?</p>

<p>oh i forgot to tell you something.</p>

<p>once, my phone goes off cause the battery is 0%, n then it shows <a href="http://3gontravel.com/wp-content/uploads/2011/11/iPhone_Low_Battery_2011119.jpg" rel="nofollow noopener noreferrer">like this</a> n it charged normaly until like a minute after my phone turned back on. when it turned on, its not charged anymore, like i said no thunder bolt but it actualy slow chraged. like realy slooow. spent a whole day for fullfilled it</p>

<p>⟐ Commented 12月 29, 2016 at 7:45 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/109344/iPhone4+WONT+CHARGED!+no+thunder+bolt+no+other+explenation</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/109344</guid>
<pubDate>Thu, 29 Dec 2016 07:45:01 -0700</pubDate>
</item>
<item>
<title><![CDATA[iPhone 4: autofocus is not working]]></title>
<description><![CDATA[<p>my iphone 4 camera works well but it doesn't want to autofocus! i've tried rebooting and restore. still not working, i tap to focus, i only see the blue square but does not focus.</p>

<p>what should i do?</p>

<p>⟐ Commented 7月 22, 2015 at 14:14 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/31477/autofocus+is+not+working</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/31477</guid>
<pubDate>Wed, 22 Jul 2015 14:14:01 -0700</pubDate>
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<title><![CDATA[iPhone 4: iPhone 4 shows no service after changing the display and touch!]]></title>
<description><![CDATA[<p>i cracked my display of iPhone after dropping it very hard on the ground..the lcd and touch had a crack so i replaced it myself getting help from websites and they are working very well...but after fixing those problems my phone shows &quot;NO SERVICE&quot;...it is a factory unlocked phone...and i have checked antenna cable and it is connected properly..wi-fi ,bluetooth,compass and gps works well but the network is having problem.....PLEASE HELP!!!!</p>

<p>⟐ Commented 2月 03, 2015 at 15:25 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/83080/iPhone+4+shows+no+service+after+changing+the+display+and+touch!</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/83080</guid>
<pubDate>Tue, 03 Feb 2015 15:25:01 -0700</pubDate>
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<item>
<title><![CDATA[iPhone 4: Battery Won't Charge After Dock Connector Replacement?]]></title>
<description><![CDATA[<p>I spilled water on my charging cable. I let it dry for a few hours, plugged it into my phone, and it seemed to work fine. After a few days it started having trouble. I would have to reinsert the cable once or twice before it would charge. Eventually it stopped connecting to any cable I had, so I took a look at the dock connector. That thing looked in bad shape. So I ordered a new dock connector.</p>

<p>I just got the new dock connector into the phone and fired everything up. When I plug the charging cable from either a computer or wall outlet, all I get is the icon telling me it is pulling power from the cable. It won't charge the battery.</p>

<p>I've done some troubleshooting already. I restarted the phone. I opened everything up, disconnected the battery and dock connector cables inside of the phone, recleaned the connection points using a q-tip with Windex, connected everything again, and closed up the phone. Still the same problem.</p>

<p>I'm really at a loss here. The phone wasn't submerged in liquid, so I do not see how there could be a short somewhere else such as with the battery or logic board. Any guidance on where to go from here would be appreciated.</p>

<p>⟐ Answered 11月 19, 2014 at 14:18 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/97736/Battery+Won&#039;t+Charge+After+Dock+Connector+Replacement</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/97736</guid>
<pubDate>Wed, 19 Nov 2014 14:18:22 -0700</pubDate>
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<item>
<title><![CDATA[iPhone 4: What is the ram of iPhone 4?]]></title>
<description><![CDATA[<p>What is the ram of iPhone 4?</p>

<p>256 or 512</p>

<p>⟐ Answered 6月 22, 2013 at 0:11 GMT-7</p>]]></description>
<link>https://jp.ifixit.com/Answers/View/19805/What+is+the+ram+of+iPhone+4</link>
<guid isPermaLink="false" >https://jp.ifixit.com/Answers/View/19805</guid>
<pubDate>Sat, 22 Jun 2013 00:11:18 -0700</pubDate>
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