Problems after screen replacement

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iPhone 12 Pro Max

Apple 2020年的顶级智能手机。iPhone12 Pro Max于10月13日发布并于11月13日发布，配备6.7英寸OLED显示屏，带LiDAR的三重后置摄像头系统和5G连接。iPhone 11的后继产品。专业版

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Heitor Scatolin @heitorscatolin

声誉积分: 79

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发帖于: 2023年4月23日

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Problems after screen replacement

Hey, I replaced the display on my 12 Pro Max with a cheap OLED display because I didn't want to spend a lot of money on it, but the display only lasted some days because it cracked on my pocket, but I kept using it for some weeks, the display was half green and kept turning off (locking the phone and unlocking would fix), then one day it turned off and never turned on again (phone was still working fine, only the display was off), so I replaced again with a even cheaper display (LCD), but this display never worked, only the touch part works, I already tried to clean the connectors, plug them again, force reset the phone, and nothing fixed it, but if I enter recovery mode, the screen turns green (pic below). So, what can be the issue? its possible the first cheap display fried the display part of the board? or its possible the second display to be damaged already? DFU restore have any possible chances to fix this? Thank you for the help!

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Witam, czy udało się naprawić problem z wyświetlaczem, mam taki sam przypadek.

English translation:

Hello, did you manage to fix the display problem, I have the same case.

由 Marek Mitrus 完成的 2023年11月26日

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Witam, czy udało się naprawić problem z wyświetlaczem, mam taki sam przypadek.

English translation:

Hello, did you manage to fix the display problem, I have the same case. — Marek Mitrus

Jesse Hooton @hootonberg 声誉积分: 11.4千 Mobile Device E.R. 7 5 1 · Answer 1 · 2023-04-25T07:00:43-07:00

These are premium devices, so buying the cheapest repair option possible will cause issues. At least you stuck with an OLED panel for the first one, but LCD should not be used on devices that were designed with an OLED panel as the OLED panel doesn't use nearly enough energy to power it. With that being side, the LCD will need to pull additional power somewhere from that connector, which can usually cause the connector on the board to burn up or damage the circuitry that runs the display.

You'll need to get a known working display. If you still have it and it still worked prior to the repair, just connect the old display and check to see if it works. Or find a functional donor display. If you don't have one, get a soft or hard OLED display. Just be aware the hard will be cheaper and also have thicker bezels. They're also more fragile. Apple uses soft OLED panels from the factory. If neither of those displays work, you've got bigger problems on your hands such as a board issue that'll need to be repaired by someone skilled in micro soldering.

Good luck!

iPhone 12 Pro Max

Problems after screen replacement

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