Help! No display after replacing lcd screen - Xiaomi Mi Mix 3 Questions & Answers

This is the orignal cracked screen
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And this is the new replacement screen
So finally my phone fell down and cracked the screen. Figured I should go and replace it straight away.
Mi Mix 3 isn't officially available in my country (Malaysia), so have to go with aftermarket "original" parts as claimed by the repairer.
Replaced, and it worked...... for less than a day. the screen turned black soon after.
But strange thing is, if I hold the power button and reboot the phone, the MI logo came up, indicating the screen works - but not in MIUI. Fastboot screen, recovery are working.
What can I do? Should I flash it from China ROM to Global and mayyyyybe it will work? Ugh so annoying

Check for loose or damaged connectors.
Are the battery and its connection good?
Try reflashing to same firmware version.
It's possible the mobo was damaged by the impact or G loading it experienced. BGA chipsets are intolerant of board flexing and a high impact can fracture solder joints including the hidden BGA ones.

Related

[Q] Fake Chinese HTC Charger?

Hi,
I wanted to share a photo of probably fake HTC charger:
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Could anyone show me how original looks like ? Because this one above makes really nasty touch screen interference on my i9000
I too have got this charger, I got it from amazon and this is I think the 4th item I have got from them that I suspect to be counterfeit. Mine gets really hot and smells like the components are burning inside. I do have a original charger the same style but I'm reluctant to take it apart, I can confirm that it is very different looking, also the plug section should twist to come of and be replaced by euro or US adapers I suspect. I also get unresponsive touch screen while charging too.
Sorry for posting in such an old thread. I have a very similar fake charger. Mine was marked "For Samsung", despite being an imitation of an HTC charger. I'm also having problems with it (calls end unexpectedly while charging and music stops playing after a few seconds).
Can you show the rear of your charger's PCB, please?
Thanks in advance.

Battery swap physical issue

Hey guys I did a battery swap on my tablet which fixed the reboot issue but I managed to screw up my 4g. Specifically the tablet will not recognize a sim card inside despite rebooting, as well as resetting the card. I did notice upon inspection the black part at the top seems to have fell off. Is this repairable? Or did I brick my tablet
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I'm not really sure what this part is called so I added a picture, it's right above/perpendicular to where the camera would be on the top of the tablet, and its near a microphone
If your SIM card had worked before you did the battery replacement, probably your USB flex or SIM/SD flex is not fully connected. Try to disconnect and reconnect all the flex cables, they are serial connections from Home button, sim/sd, usb port to mainboard. If the SIM slot is defective, you can buy a new one, it costs only $6 to $10, depending where you buy.
http://www.ebay.com/itm/New-Flex-Ca...695527?hash=item35da6abf27:g:0JMAAOSwEK9T3Ial
The small black plastic at the center of LCD frame is IR cover, you can put it back to the frame but the back cover of the tablet has to remove first.

screen bleading & touch working in my google pixel phone plz guide me ?

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so i droped my google pixel phone in toilet and instantly took it out at that time phone display was working fine so i intstanly switched it off but as i switched it off it started turning on and off like a loop and when battery got all over then i put in a rice sack for 3 days and i took it out charged it a lil bit and the screen was bleeding from bottom but touch was working fine so i put in normal temprature for 3 days but same issue is there screen is bleeding from bottom and now the the whole screen is liitle blurry but i can see it and use touch properly.

			
				
It sounds like your screen is water damaged so you should probably get a replacement device.
HesThatGuy said:
It sounds like your screen is water damaged so you should probably get a replacement device.
Click to expand...
Click to collapse
but it isnt showing red mark when i open sim tray
Water often times doesn't splash onto the indicator when it enters a device. Also keep the responses to one thread so this section isn't clogged.

Screen Replacement

Hello,
unfortunately my screen is broken by accident and I need to replace it. I have already ordered a new screen and I guess this new screen will arrived quite soon. Unfortunately I was not able to find any manual or video regarding the screen replacement so I decided to remove the back cover and check by myself how the screen replacement could work.
I have already removed the parts for QI charging and the cover above the main unit (mainboard). But now I need a little bit support.
Do I have to remove the grey adhesive tape on the earpiece and the front camera?
If yes I guess it makes sense to heat it for removal.
In addition I assume I only have to remove the three grey connectors (wide) and the black small connector in top of the battery. In addition I also have to remove the white and black cable.
Anything else I have to consider? Do you know where the proximity sensor is located?
At the buttom board I also have to remove the white and black cable. And as well the connector for the fingerprint sensor. Is the fingerprint glued to the display/frame? In addition I also have to remove the vibration motor. Anything else?
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Kind regards
Robert

Question The backs cracked By itself

Hello, I have an unusual problem Well, I once wrote here on the forum whether other users of this phone Asus Rog Phone 5 Do they have a hard time with the volume buttons because in my copy they were stuck when pressed? Today I was cleaning the phone and I noticed a crack on the back cover from the button side Oddly enough, the buttons have been working perfectly for some time, they click I do not know when it could have been damaged because the device has never fallen down I suspect that the damage could have happened spontaneously due to the badly glued housing, the stresses that arose as a result could have contributed to the malfunction of the volume buttons Can you advertise it or has anyone heard of a similar case?
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Could it burst by itself?
The only thing that would generally cause the phone to crack on it's own like that is a swollen battery. Hopefully that is not the case with your device.
Nothing is swollen, everything works, even the buttons click and normally recede The warranty is unlikely to cover it, unless they believe it, it makes sense to advertise?
not sure but I had the rog phone 2 and it cracked near the hole on the back and I never dropped it I now have the rog phone 5 and it cracked kind of like that one mine is in a case I'm wondering if it has something to do with heat

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