iFixit - Answers With Device "iPhone 7"

iPhone 7: I replaced my lighting connector now the touch id doesn't work.

Fri, 08 May 2020 07:29:39 -0700

I just installed a new lightning connector and the install went very smoothly. Now I have no issues with charging the phone but now the touch sensor doesn’t work. It pops up when I turn the phone on and states “Touch Id is unavailable on this phone”. Anyone have this happen before?

⟐ Answer edited 5月 08, 2020 at 7:29 GMT-7

iPhone 7: What is wrong with my WiFi ic chip?

Tue, 17 Mar 2020 12:01:06 -0700

Hi, my iPhone Wifi & Bluetooth is both not working and decided it was the WiFi ic chip and was going to swap a WiFI IC chip from a locked iPhone 7 onto my iPhone 7 but before I did that I took the iPhone 7 motherboard out of the phone and tested it without the case by just plugging it back in and it worked just fine so put it back together and it stopped working again, is the WiFi ic chip the problem or is it something else that is not cooling the WiFi ic chip so that it needs air or something?

This video will explain more:

Video of WiFi & bluetooth prob

Hope someone knows what is going on and if it is the WiFi ic chip or something else?

Thank you in advance!

⟐ Answered 3月 17, 2020 at 12:01 GMT-7

iPhone 7: Home Button not working after logic board removal

Fri, 28 Feb 2020 21:25:25 -0700

My friend gave me her iPhone 7 to sort out the Charging dock, and to do that you need to remove motherboard, I’ve done all that as I’ve done on many other iPhones, but this time something went wrong and don’t know what exactly as after putting everything together switching the phone on, I’m receiving information Unable to activate Touch ID, and home button is not reacting for touching it, it’s like HB died!?, I’ve put another spare iPhone 7 HB (working one) from different phone and had the same information about TouchID but still when I pressed HB there was no reaction from it. I know fitting new HB will disable TouchID but will not disable his functions! Any idea if that can be fixed?, or what could go wrong? Every screw was put in the same place from where it was taken out, all the connections are solid.

Any suggestion will be great

Thanks

⟐ Commented 2月 28, 2020 at 21:25 GMT-7

iPhone 7: After fixed iPhone 7 audio IC, the phone won’t charge

Wed, 19 Feb 2020 23:57:52 -0700

Hi guys, I have an iPhone 7 here. It has classic audio IC problem: Grey-out speaker and takes ages to load. As usual I removed the big audio chip, did the jumpers, installed the IC, then I started to notice something is not right: the phone is warm and took ages to load, the system is very laggard, and the phone wouldn’t charge. I disconnected the charging flex from motherboard, then the phone was back to normal, the phone was quick to start and everything seems working properly with the charging flex disconnected. I tried two new charging flexes, same thing happened. As soon as I connected the charging flex, the phone was warm and slow to start.

Because the phone worked fine before I did the audio IC repair. I thought somewhere is shorted under the audio IC. So I removed the big audio chip, however the pads looked fine. Nothing is shorted under the chip. I installed the audio IC back to the board. Again same thing happened. The phone is warm and slow as soon as I connected the charging flex. The phone would work fine with charging flex disconnected.

I want to ask, does the audio IC has anything to do with the charging flex? I checked the components around the charging connector. They all look good. None of them was disturbed.

Thanks in advance for any suggestions.

⟐ Answered 2月 19, 2020 at 23:57 GMT-7

iPhone 7: iPhone 7 BB CPU itself shorted

Sat, 07 Sep 2019 05:59:24 -0700

Has anyone had any Iphone 7 BB CPU shorted yet? I have done several 4013 and -1 repairs on these and recently took in 2 phones from a shop in Florida where I had a short on BBPMU_TO_PMU_AMUX1 and PP_1V0_LDO9 on one phone and just PP_1V0_LDO9 on the other. After removing the BB CPU the shorts went away on both, so I reballed and placed it back and shorts came back. Thinking I just made a mistake, I reballed both again and shorts came back a second time. I then checked those lines on the BB CPU and sure enough they are shorted within the BB CPU itself.

1. Has anyone else experienced this ...

2. I have NAND Programmer(s) but nothing for BB CPU... Is it even possible? Or does anyone have a programmer to reprogram new IC's?

⟐ Commented 9月 07, 2019 at 5:59 GMT-7

iPhone 7: Caution Symbol next to "No Service"

Tue, 03 Sep 2019 10:00:23 -0700

I had a friend look at a phone that was stuck in a boot loop. The boot loop lasted for about 5 months? After he fixed it (he said all he did was mess with iTunes until it finally started), there was a Caution triangle to the left of the “No Service” in the left. I figured if I restored the phone, it would all be peachy. Nope. Now the phone is stuck on the “Hello” screen because soon after it goes “Unable to Activate": An update is required to activate your iPhone.” No idea where to go from here. Do I keep restoring until I catch a lucky break?

⟐ Answered 9月 03, 2019 at 10:00 GMT-7

iPhone 7: Can I use parts from an iPhone 7 on an iPhone 6s or the other way aro?

Sat, 12 Jan 2019 02:13:30 -0700

Replacing parts from other phones

⟐ Answer unaccepted 1月 12, 2019 at 2:13 GMT-7

iPhone 7: Why is my iPhone 7 boot looping after a screen replacement?

Sat, 29 Sep 2018 08:04:28 -0700

So a few days ago i bought a used iphone online. It had a cracked screen but worked just fine. I ordered a new screen and replaced it. After replacing it the problems started to happen. It would continuously boot loop.

I've tried to restore it using itunes several times. Sometimes it worked, but i couldn't get past the "hello" screen as the home button doesn't work anymore... I had to turn it back off in hopes it would start at language selection screen. Unfortunately, almost every time it shuts off it would go back into a boot loop. I've tried reconnecting the old screen too, but it's still boot looping.

I'm wondering if this is a software issue or if it's a hardware issue. If it is a hardware issue, is it the screen that sends it into a boot loop or can it be due to something else?

Any help would be much appreciated!

⟐ Answer deleted 9月 29, 2018 at 8:04 GMT-7

iPhone 7: Home button and sensors not working

Wed, 11 Jul 2018 20:34:36 -0700

I bought an iPhone 7 with a broken screen and after I replaced the screen the home button and the earpiece and front sensors are not working. The seller keeps saying everything was working and that I have broken it but I have been fixing iPhones for a while and had no problem like this even though I had been really careful with it. I don’t know what to do if eBay choose not to let me return it as apple is going to charge a lot to fix the home button. Is there anyway I could fix it without having to put more money into it? Also the phone takes a really long time to turn on which probably has to do with the home button not working.

⟐ Commented 7月 11, 2018 at 20:34 GMT-7

iPhone 7: rear camera and flahlight not working

Fri, 18 May 2018 05:27:13 -0700

The rear camera and flashlight are not working on my iphone 7. I replaced the camera to see if that was the issue. However even with new camera the problem persist. the phone was dropped and the screen cracked. If it is plugged in properly and I know the camera is good, does that mean it is possibly a motherboard problem? i have done complete reboot/reset/firmware update. any thoughts?

⟐ Commented 5月 18, 2018 at 5:27 GMT-7

iPhone 7: Phone has a mind of it's own after screen replacement

Sun, 11 Mar 2018 11:02:11 -0700

I have replaced many iPhone 7 screens now but I'm having a high ratio of phones coming back to me because of issues with the touch after the replacement. I've just been contacted by another customer saying that the screen has a mind of it's own, pressing button on it's own etc.

I'm buying what I consider to be good quality screens, certainly not cheap nasty ones. I'm installing correctly and testing before I give back to the customer (with the customer present) and all works great but within 24 hours they develop issues.

Can anyone offer any advice/solutions.

Thank you

⟐ Answer accepted 3月 11, 2018 at 11:02 GMT-7

iPhone 7: After water damage problems

Tue, 28 Nov 2017 20:02:42 -0700

Hi, I think I have a different question to the previous ones. My had water damage but after drying out on airing cupboard for 2 days I switched on and all is working fine BUT it wont allow me to insert the charging plug into the phone anymore, only halfway and seems like resistance stopping inserting plug all the way. The phone is still under warranty but because water damage may not repair free... As I said everything else on the phone is working but my charge is now on 16% and I cannot charge..... Any ideas anyone... appreciated, thanks

⟐ Commented 11月 28, 2017 at 20:02 GMT-7

iPhone 7: My iPhone 7 will not stay on

Wed, 24 May 2017 14:06:55 -0700

Hello,

About a month into having a brand new iPhone 7 i had dropped it an cracked the screen a little. When I'm using it the part where the screen is broken lights up differently. You can tell something is wrong. I went a few months like that and ended up dropping it again. Days went by and my phone would turn off around 40% then 60% and now it won't stay on for more then 10 seconds without being on the charger. It doesn't have the powering off spinning circle when it turns off it goes completely black. I don't know if i should replace the screen or if its something else. I don't wanna spend unnecessary money on the wrong things. please help. Is it the LCD cord detaching or is it my battery??? I'm so clueless. Also if the top left side of phone it looks like its coming up a bit.

another thing is iv only had this phone for 6 months.

⟐ Commented 5月 24, 2017 at 14:06 GMT-7

iPhone 7: Buying AppleCare+ With a Cracked Screen

Wed, 19 Apr 2017 01:30:44 -0700

I got my iPhone on the 23rd and haven't bought Apple care yet. I dropped it on the face on a driveway from about my belly button height on the 28th, and the screen is cracked pretty good. I know that I can buy AppleCare+ on the phone or online and they run a diagnostic, but I was wondering if cracked glass would show up on that. I have seen some people talking about them checking gyroscope logs and things like that, but I don't think it would show up since the inpact was so small, but the screen didn't stand a chance with the rocks. Do you guys think I would be able to still buy AppleCare?

⟐ Commented 4月 19, 2017 at 1:30 GMT-7

iPhone 7: iPhone 7 (1660) No Service

Thu, 15 Aug 2024 08:42:36 -0700

Hey! I have an iPhone 7 with no service issue. I am a micro-soldering technician but I am new to it. The iPhone does not show IMEI and putting a sim card into the sim port does not change or affect the status. I am wondering if I should start at the baseband or the Qualcomm chip that I hear normally fails. Thanks for your answers and I hope you have a great day!

————————-Edit————————-

Based on my readings, the capacitors around the chip are shorted. I assume that it’s the chip and not the caps themselves (I’ve tested 6 of them).

————————-Edit————————-

Removed the chip successfully, shorts and cleared and upon further inspection of the chip there is a bulge on it which I call: “The fry mark”.

⟐ Commented 8月 15, 2024 at 8:42 GMT-7

iPhone 7: software to unlock network for customers

Thu, 05 Oct 2023 05:00:21 -0700

I would like to be able to unlock a mobile to any network for customers, whats the best software to do this?

⟐ Answered 10月 05, 2023 at 5:00 GMT-7

iPhone 7: Can I swap battery cells 6S to 7?

Wed, 27 Sep 2023 18:00:39 -0700

Long story short I have a 7 that has a battery so dead that the phone won't even detect it anymore. Is it possible that I can take the good cell off of a 6S battery and connect it to the iPhone 7's BMS to make a 'new battery'. It would only be temporary but I don't know if it's possible.

⟐ Commented 9月 27, 2023 at 18:00 GMT-7

iPhone 7: iPhone 7 destroys new batteries?

Mon, 11 Sep 2023 08:09:44 -0700

I replaced the old low capacity battery with a new one. Everything worked for about 3 days, after the iphone ran out of power and shut down. It wouldn't turn on anymore, I thought I had purchased a low quality battery. So I bought a new one.. iphone worked, went to charge normally.. then I let it discharge until it turned off and then it wouldn't turn on again. Same problem.. does anyone know what could be wrong? When I plug it into the charger nothing happens I just hear a slight popping sound. Any problem on the motherboard? (As long as I didn't let the iphone completely discharge it worked completely normal and went to charge, maybe it was just discharging a bit faster.)

Thanks for any advice.

⟐ Answer accepted 9月 11, 2023 at 8:09 GMT-7

iPhone 7: Do replacement batteries work with battery health feature?

Sun, 18 Jun 2023 13:30:40 -0700

I am thinking about ordering a replacement battery for my iPhone 7 and am curious if the feature will work or not.

⟐ Answered 6月 18, 2023 at 13:30 GMT-7

iPhone 7: Dropped iPhone 7, screen shattered, won't turn on. HELP :(

Sat, 01 Apr 2023 14:16:39 -0700

I dropped my iPhone that already had a small crack in the corner of the screen. On impact, the screen completely shattered and has come off at the top and sides (I can peel back the screen and see the inside between the two metal plates [see picture]). It is still attached on the bottom by the home button. When I picked it up, the phone was unresponsive. Screen went completely black. I plugged it into my computer and opened itunes. It said “itunes has detected a device in recovery mode and you must restore”. All of a sudden, my phone got really hot, and I feared it was the battery. So I quickly unplugged it and took it outside to cool off.

Since then, I’ve tried plugging it into my computer and several wall-outlets with no luck. My mac no longer recognizes the device being plugged into to a USB port under “system report”. Itunes does nothing either when I plug it in. I’ve tried doing a soft and hard reset while the phone is plugged in, nothing. I’ve tried cleaning the lightning port. Nothing.

My question is, how can I get my data back (photos, text messages etc.). I don’t care about saving the phone, I just want my data back. Should I order a new battery and screen and try that? I live in a rural area with no repair shops around.

⟐ Commented 4月 01, 2023 at 14:16 GMT-7