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 2월 19, 2020 at 23:57 GMT-7

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 9월 07, 2019 at 5:59 GMT-7

⟐ Answered 9월 03, 2019 at 10:00 GMT-7

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

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 9월 29, 2018 at 8:04 GMT-7

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

⟐ Commented 5월 18, 2018 at 5:27 GMT-7

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 3월 11, 2018 at 11:02 GMT-7

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

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 5월 24, 2017 at 14:06 GMT-7

⟐ Commented 4월 19, 2017 at 1:30 GMT-7

————————-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 8월 15, 2024 at 8:42 GMT-7

⟐ Answered 10월 05, 2023 at 5:00 GMT-7

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

Thanks for any advice.

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

⟐ Answered 6월 18, 2023 at 13:30 GMT-7

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 4월 01, 2023 at 14:16 GMT-7

I'm looking for the kind of double-sided tape on the gold part on the back of the Lightning connector. I think that golden part needs to somehow stay in contact with the housing.

Does anyone know what type of tape is used?

Thanks in advance.

⟐ Commented 3월 22, 2023 at 7:31 GMT-7

⟐ Answered 3월 20, 2023 at 1:32 GMT-7

I replaced the screen, mic, ear piece, and any ribbons associated (its been awhile since i did the repair) and now sometimes the phone would start, sometimes it would boot loop apple logo. Mostly it would boot loop.

Sometimes when it would load, the speaker/mic would work, sometimes it wouldnt. When it doesnt work, on a phone call the "speaker" icon would be greyed out.

Ive tried updating/downgrading to different iOS versions, with no success. The board appears to have no damage done to it. Is it possible i got a bad speaker or mic and these items are stopping it from booting?

If i do a DFU mode then do a restore, i can get the phone to boot the first time, 100% of the time. This makes me think that the OS doesnt do a hardware check on this first boot. Here is a video of it directly after doing the DFU restore, then rebooting the phone

https://youtu.be/vcv1UBDrJG0

Im at a loss. Does anyone have any ideas? Got a bad headphone/mic? bad screen? idk. Updating to iOS 11.3.1 seems to make it boot more often, but still boot loops for awhile.

⟐ Answer accepted 12월 14, 2022 at 14:05 GMT-7