Question Screen Replacement Not Working?!

[GodKingKnight]

So the sad sad day came when my niece dropped by my house, jumped on the couch, and broke my phone. No physical damage was down upon first glance, but as soon as I assessed I realized the LCD won't respond.

Phone was still on, and even functioned like normal, touch screen even worked. I could blindly answer calls. However, no display.

Took it to one of my tech savvy phone repair guys. Said it requires a new LCD. Cost me $400 bucks, and a month and a half of waiting for the part to arrive in Canada.


Arrived today, and my tech calls to say, with the replaced screen still no screen.

He reinstalled twice and checked all connections.


Any ideas or am I simply put SOL?

 

[NOSS8]

For this price, there is the frame too?
Is it exactly like before?

 

[GodKingKnight]

For this price, there is the frame too?
Is it exactly like before?

Yes, it is an original part, and includes the frame.

Both parts don't show a screen but turn on and function perfectly.

 

[NOSS8]

Yes, it is an original part, and includes the frame.

Both parts don't show a screen but turn on and function perfectly.

Several hypotheses:
The new part is defective (rare, but it happens).
Damage to a component during disassembly/assembly.
Other faulty components.
In this video, replacing the screen requires time and material.

 

[GodKingKnight]

Several hypotheses:
The new part is defective (rare, but it happens).
Damage to a component during disassembly/assembly.
Other faulty components.
In this video, replacing the screen requires time and material.

Thanks for the suggestions. Yes I also figured there is some damage to other components, not due to installation because the symptoms are the same. Maybe due to it bending when she stepped on the phone. Oddly enough there's no physical damage.

The YouTube video there uses the same frame. That's a very tough fix. This came with screen and assembly. None of that work was necessary.

 

[NOSS8]

Of course, but personally given the price of the parts on this phone, I would have had an estimate made beforehand in an approved Xiaomi center.
I had the same case with an Honor, I replaced the screen for nothing, but given the price of the phone, direct trash.

 

[GodKingKnight]

Of course, but personally given the price of the parts on this phone, I would have had an estimate made beforehand in an approved Xiaomi center.
I had the same case with an Honor, I replaced the screen for nothing, but given the price of the phone, direct trash.

Trust me I'm off the same mindset. Unfortunately here in Canada no such things exist.

 

[NOSS8]

Trust me I'm off the same mindset. Unfortunately here in Canada no such things exist.

Annoying indeed, the guy who changed the screen can't diagnose the problem?
Suppose the motherboard is the failure, screen + motherboard = not far from the price of the phone + labor?

 

[Jdorman12]

Annoying indeed, the guy who changed the screen can't diagnose the problem?
Suppose the motherboard is the failure, screen + motherboard = not far from the price of the phone + labor?

I think it's a hardware issue or thermal issue idk, but mine has been blacking out lately and if I reboot to fastboot sometimes it starts working again, I tried the heating the battery up to no avail. I am also getting glitches on the screen like when you overclock the gpu too much so I think it's the gpu drivers/chipset and something with the power/transmission

 

[GodKingKnight]

Annoying indeed, the guy who changed the screen can't diagnose the problem?
Suppose the motherboard is the failure, screen + motherboard = not far from the price of the phone + labor?

Exactly. Too much cost. Also it's not exactly the whole motherboard as the phone is fully functional outside of the one issue that the screen is black. It's got to be a chipset defect.

 

[GodKingKnight]

I think it's a hardware issue or thermal issue idk, but mine has been blacking out lately and if I reboot to fastboot sometimes it starts working again, I tried the heating the battery up to no avail. I am also getting glitches on the screen like when you overclock the gpu too much so I think it's the gpu drivers/chipset and something with the power/transmission

Can't be thanks for mine as it's stable, and stays on. Thermally it would shut off the phone when overheating. Drivers/chipset is what I'm guessing also.