How to Fix iPhone X No Display/Black Screen | Motherboard Repair

When you see a black screen on your iPhone, but you don’t know whether the problem is out of no display or because the phone won’t turn on, here are some small tips to help to diagnosis: 1. communicate the iPhone to the computer and launch the i4 or iTunes to see if it can be connected; 2. try to make a phone a call to the phone to see whether it’s on; 3. Use the DC power supply to see if there’s current flow. In this video, we troubleshoot and fix the iPhone X no display, we hope you enjoy watching
Tools and materials used in this video:
Solder flux
Soldering iron: bit.ly/2XpEN7z
Hot air gun: bit.ly/3du6lyb
Microscope: bit.ly/3gLIs7n
Multimeter: bit.ly/2XTsFe1
Tweezers: bit.ly/36SxHM7
Solder paste
Rosin
PCB cleaner
Cleanroom wipes
Desoldering braid/solder wick: bit.ly/3eGL2d4
BGA soldering net: bit.ly/2Y97SUa
Questions are most welcome!
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[@TaylorSoloaiJR]

So I got a iPhone SE, it shows up on iTunes but nothing is displayed on the screen. Do you think its just a LCD problem?

[@HcqsUs]

Hi, there are two possibilities, one is the LCD problem, one is the motherboard problem, if you have multimeter in hands, you can try to measure the diode resistance of the display connector to troubleshoot the motherboard, or you can try to simply replace a new LCD to troubleshoot the screen assembly.

[@TaylorSoloaiJR]

Thank you @@HcqsUs for replying I will try out what you suggested.

[@HcqsUs]

@@TaylorSoloaiJR No problem at all :)

[@chinatechnical6860]

very good

[@cristianzaldivar]

your method is my last chance to fix my iphone. You are a fuc***ing genious. in the meantime press & release up volume , press & release down volume ... press & release on/off button for 10 seconds. make this every 10 minutes 4 ethernity.

[@mehmetcelik4900]

love your videos keep them comeing in :-)

[@HcqsUs]

Thank you Mehmet, you are most welcome to add our whatsapp: [phone] and join our repair group, it's totally free

[@Rozhiin]

Hello, thank you for your video. I tried changing my iphone x's battery myself yesterday, and after I did, I realized that the screen was all black even tho I was receiving calls and texts (my phone is on). After hours of trying to find out what I had done wrong, I realized that because my phone's screen was cracked and damaged before, the ear speaker was stuck inside of the phone's body and it was not attached to the phone's screen and the flex cables of the ear speaker were damaged (the solder points were gone and the flex cable was not attached to the microphone anymore.) To explain it better, when you lift the screen to see inside of the phone, the screen that comes off, has a microphone attached to it on top, mine was not there and it was left inside of the phone above the battery But since that's the microphone and not the screen, I was wondering if that's the reason my screen is not showing up? and should I buy a new screen OR a new ear microphone OR only the flex cables? I would be so happy and thankful to receive your advice, thank you!

[@burhanraj9572]

My phone screen black but it's vibrate and it's also sounds of siren like sos .. please Tell should i follow your method?

[@akramnazeir5505]

👍👍👍

[@rolandls8793]

Hello, i have the first 2 pins of right side (pin number 2 and 4 of the connector in short) after a screen replacement. What i can to do? Thanks. The pin number 8 as your vídeo is okay. (4 from right side) And the phone is in the same status, turn on but no vídeo. Touch running when i touch the phone. Tryed with other workinng screen and same problem.

[@HcqsUs]

Hi, Roland, thank you for your comment, according to your description, the first 2 pins of the right side should be the pin number 1 and 3, if both pins are measured short, we suggest you to look into the inductor FL5703, remove the inductor and measure the diode resistance again.

[@rolandls8793]

HCQS no, according to Phoneboard App, the pins are 2 and 4.

[@HcqsUs]

@@rolandls8793 Which connector you are measuring?

[@rolandls8793]

@@HcqsUs Hello, i detected the DIODE DZ5900 / ref: RB521ES is fault, can this be the reason? I need to buy one to replace but i don't know where....

[@HcqsUs]

@@rolandls8793 Hi, Roland, yes, according to our technician, this defect DZ5900 might has caused the "No display" problem, he also suggests you to troubleshoot the IC U5900, since the IC is connected with the DZ5900 as well, if you need to purchase small parts, you can contact us via [e-mail]. Best of luck!

[@franceslindberg6293]

👍👍👍