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Hi all, I run a professional phone repair business and have done several iphone 6 with no major issues so far. Today I worked on an iPhone 6 repair. The repair was going good, had put the new screen on and everything was fine. Just then I realised the home button was not clicking properly, for there were some small glass chips around it; so I decided to remove it again and clean it. I did so without removing the screen ( turned the phone upside down to work on the button). I removed the button flex, cleaned it and put it back in. When I when to test it the screen didn’t come on, the power button didn’t help either. I then tried the usual tricks (hold power + home button for 10s, unplug the battery and so). I have removed the screen and put it back, checked all the connectors, have tried with the original screen again and nothing has worked so far. Phone looks as it’s dead. I have left it charging (no charging icon) with no luck. I run out of ideas, any suggestions from you wise people? thanks in advance, M

Is it recognized by iTunes? If so, this is no backlight after screen replacement. In the iPhone 6, this is caused by trace damage from mixing up the screws–aka “the long screw problem” My guess is that the twisting from lifting the screen pulled up on the screw bracket which tore the traces. This is going to be the next epidemic in iPhone problems…. jessa hit up my biz if you need it solved.

Hey Miki, I have seen this happen of the iPhone 6 before if any part of the home button flex is torn. Trying unplugging the home button from the board and seeing if that will power it on. Let me know if this helps!

Disconnect the screen, check the whole screen for any faults. Disconnect the battery, wait for a while the reconnect the battery and then reconnect the screen If that doesn’t work then I’ve got no idea. I’ve only ever done like 10 iPhone 6 LCD repairs but they’ve always been so smooth and no problems whatsoever It is worth checking the screws for LSD. The bottom 3 screws should be smallest top right should be big, top left should be bigger then the bottom 3

i had exactly the same problem, phone was dead after screen replacement. Then i put old screen again, unplag the battery, push the power button to uncharge the phone and plug in the battery again. Then phone turned on, then without close the phone i put the new screen again and worked for one day, same problem appeared. I then put the old broken screen back and phone working fine for two days now

Check resistor damage in line home button to ram u0201, this line connect 1,8v sdram. This line problem iphone not power on “dead”. If there is a short-circuit capacitor, then the home button is automatically always in a closed state (keep pressing). This results in GPIO failing in reading input data in other words error. For lcd replacement, the socket to the connector should be precise, because for the lcd line the voltage used is quite large, even without the battery the capacitor still supplies the residual charge when loaded. Keep the spirit and always be careful. Learn about ic that is sensitive to esd, maybe this one cause. Tq

Hi, I fixed over 7 Iphone 6 before I ran to this problem: here’s how I fixed it. In my case, I fixed an iPhone 6 for someone in a rush. Conected everything and tried to turn it on but NOTHiNG. Tried charging it, soft reset. I thought screen was defective. Took out plate and noticed one of the connectors was not in all the way. Pushed it in, reconnected battery and voila. .. Check your screen connectors again. Be nice and gentle

Miki, Did you disconnect battery before you work on this phone? Look around the area that you clean debrish, cable any loose/damaged parts around cleaning area, and check your connection. Most people didn’t realize that they knock off some of the component during cleaning or plied to disconnect cable. Otherwise, electrical shortage during cleaning debrish.

Hi Guys, I have a similar issue, if not the same. Unplugged the Battery, then disconnected the screen connectors carefully with a plastic spludger.. and connected the bare new screen to see if it worked before doing the repair, Nothing.. no back-light or any signs of life, so reconnected the old screen with the same issue :( iTunes does recognize the phone when its plugged in, but my PC is not authorized for this phone.. when the phone is on charge it draws power, but just pings every 5 seconds.. All connectors are clean with good connection, there were no screws in the connector plate after removing them, and the phone was working fine prior to removing them.. Sorry this is not a solution Miki.. would have loved to read one here.. :(

Might be. An issue of updating th os or updating the fingerprint detect with a new display. I was told the is checks both display and phone memory for a match. If no match your screwed. I need the solution also.

So I had the same problem, I replaced the screen it was working fine till i put the phone all together then the phone died. I have left the phone without the battery and screen connected. What I have find out that the electric statics killed the batteries as there was still power in the phone and after the phone got rid of all the electric power inside I have placed new battery and new screen and it works. I don’t know if that would work with everybody but it worked in my case.

Passei pelo mesmo problema nessas ultimas semanas. Peguei um iphone 6 plus para trocar a tela e ele simplesmente apagou por completo. Fiquei constrangido para dar a noticia que, uma troca de tela mataria o telefone. Me propus de pagar outro(mesmo sabendo que não tinha culpa). Ontem a tarde apareceu uma luz no fim do tunel…Wondershare….IOS9 e oraçoes….deu resultado.

Probably some ic could be burned or damaged check foh charging ic chip or usb protection ic, Or W/D corrosion of charging coil or could be mechanical damage to charge port, take logic board out connect battery and charging block, and try to connect with pc, Lets see how it goes,

Hi all Please make sure the handset is on standby mode (black screen) when you actually plug in the lcd connectors. Safer if handset is completely switched off, i know this is a pain but rather safe than sorry with a dead phone. I have had instances where the backlite shorts out forever with no solution. Hope this helps for the future. Thanks MMA

This is a no backlight issue. I had this issue recently it is caused by having the iphone lcd on while changing lcd. I shipped mine to the United Kingdom. They did a great job fixing my iphone backlight. I used jailbreak so everytime I slide my phone it made the old unlock sound. I noticed mine was on and working because I heard it unlock just it was a black screen with any screen I put onto my iphone 6. Here is a link if you need it fixed. Took about less than two weeks to get mine back. http://www.mobiledeviceworkshop.co.uk/ip

As a repairer you have to account for these sort of issues. We get it about 1 in every 300 devices, we just buy a new phone for the customer and move on, no point crying over spilt milk or spending 10 hours getting nowhere. cut your losses and move on if the usual fixes which you have done dont work. having said that good luck.

hi i am encountering the same problem . i Actually replaced the screen of an iphone 6 with an other iphone of mine at the start all went well and the screen was working then suddenly the iphone stopped working both the phone are dead now idk what to do please help me …

Disconnect the screen, check the whole screen for any faults. Disconnect the battery, wait for a while the reconnect the battery and then reconnect the screen, perhaps, it is FPC socket connection

I realize this post is a couple years old but here’s my issue to bring this back up…. I replaced the screen and it went smooth, plugged in phone to full charge no issues. After fully charged I started to setup load a few apps, I noticed the Home button not too responsive then no response at all. I then replaced the Home button to a new button for iPhone 6 and now have no power from wallplug, No iTunes recognize or power, Nothing just seems dead now.. So, I reopen the phone and disconnect the Home Button. Power on Phone and have 90% battery.. So is Home button faulty or is Home button ribbon faulty.. The Home button looks slightly damaged see image. Currently Phone is working with no issues other than Home button is disconnected and I have to use AssistiveTouch to navigate. Waiting on ribbon to arrive to update thread but if anyone has replies please post.

wanted to change speaker, on the process I unplugged the LCD connectors and replaced the speakers. when I tried to assemble it back nothing, feeling the processor its warming up. itunes does not recognize the phone, but if I force press power and home iTunes recognize the phone in recovery where should I check? TIA

Hi: I have run into the same “dead screen” issue after installing a new screen, I even installed the original home button. The issue occurred before I replaced the five screws in the shield over the screen connectors so that would not be the initial failure. HOWEVER, I did pick up a 1.5 mm screw in place of a 1.2 mm screw when first installing the shield. Would that small increase in length have damaged the board? I also replaced the battery before replacing the screen and the old screen worked good enough to confirm the battery seemed to be OK. Lastly, even though the screen is dead I can get the phone to vibrate indicating it is operating to some extent BUT in never connects to iTunes. This phone is not in my account but can iTunes at least recognize it? … This is my biggest issue at this point, and would really appreciate suggestions to get that resolved so the owner can get their data copied from the phone. Many Thanks!

I would check battery connectors or replace the battery. Try also connecting to itunes without installing screen

I had the same problem with you after I replaced the home button for someone. The phone seems dead. No response at all. However, i put the original home button back, it can be turned on. Then I contacted my supplier, who told me if I replaced the home button, I may also need to replace the home button cable that attached to the LCD shield plate. Since currently I don’t have any home button cable, will update next week if it works.

On the iPhone 6 and 6 plus you need to always turn off phone and then unplug the battery before you touch any connectors. It is bricked now. Only option is put old screen back and clean back plate to make sure it isn’t noticeable of someone working on it and take it to apple.