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9 Posts

08-06-2016

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Possible to install P51 4K LCD (AUO B156ZAN02.1) into P50 4K?

2017-08-23, 0:47 AM

Has anyone successfully installed the P51 4K LCD (AUO B156ZAN02.1) into a 4K P50? The P50 4K LCD is really terrible, dim, and has a strange sheen when viewed off-angle.

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3 Posts

02-19-2017

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Re: Possible to install P51 4K LCD (AUO B156ZAN02.1) into P50 4K?

2017-09-14, 17:01 PM

i just tried installing the exact same panel, and it works perfectly! including brightness control.

mines upgrade from stock FHD. I have replaced the hinge and the eDP cable as well.

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9 Posts

08-06-2016

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Re: Possible to install P51 4K LCD (AUO B156ZAN02.1) into P50 4K?

2017-09-14, 23:28 PM

Excellent. Where did you purchase your panel, and why does the hinge need to be replaced? I can probably use the same eDP cable (since I'll be upgrading from the old 4K panel). 

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3 Posts

02-19-2017

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Re: Possible to install P51 4K LCD (AUO B156ZAN02.1) into P50 4K?

2017-10-30, 18:49 PM

ok, i haven't logged on to the forum until today, so here is my story.

I purchased the hinge and eDP cable from TaoBao and i had a forwarding company to then send them from CHN to US. Then i purchased a LCD panel from eBay, but the package was lost on its way to the US. Later on, i went on a travel to CHN, so I purchased the panel from TaoBao and installed it when i was in CHN.

 

also a little sidenote, the panel i got does NOT have lenovo FRU, and its brightness control works out-of-box.

 

If your model was 4k before, i don't think you'll need to change either the cable or the hinge. I changed my hinge becuase the 4k panel is mounted slightly differently. See the attached photos; notice how the bottom screws are at different locations.

 

 

 

 

 

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14 Posts

09-13-2019

GB

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Re: Possible to install P51 4K LCD (AUO B156ZAN02.1) into P50 4K?

2019-09-13, 17:48 PM

I have just tried the exact same procedure.

using:


FRU650 4k lcd (AUO B156ZAN02.1 )
00UR820 4k Hinges
00UR827 40 pin edp cable


I have connected everything according to the service manual but when I power on the laptop I get a black screen. Do I need to update the CMOS or do anything other than connect the lcd panel?
Reconnecting the old fhd with the 30pin connector still works fine.

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14 Posts

09-13-2019

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Re: Possible to install P51 4K LCD (AUO B156ZAN02.1) into P50 4K?

2019-09-17, 10:54 AM

Just to add to my previous message:

 

I realise this is some 2 years down the line and I wondered if Lenovo have decided to Whitelist their LCD Panels

The p50 EQ reportedly supports the 00NY498 (Sharp LQ156D1JW05, I  believe). This panel has had some negative press. So I would like to steer clear of the Original FRU 00NY498.

 

Unfortunately, I have had no luck with the AUO B156ZAN02.1. When operating in Hybrid Graphics mode (selected in the BIOS setup) the screen is black and unresponsive + when in Discrete Graphics mode the backlight comes on - but that's all. Again I could not discern any pixel response.

 

I was informed by the reseller of my 00NY650 panel that the P50 supports the BOE NV156QUM-N43 but a quick look at panellook it reveals the slowest refresh response time of the 3 possible display panels at 35ms and a lacklustre gamut to boot.

 

I would rather give up than ship the 00NY650 back only to wait for delivery of a screen that may be worse than the 1080 screen I have at the moment.

 

So I really would like to know if anybody has any knowledge:

 

a. Do the machines that were upgraded in the previous posts still work?

b. Should the B156ZAN02.1 work in a 20EQS2M700 motherboard (Intel i7-6820HQ, Quadro M2000M...) without any BIOS hacking?

c. If not - Can the Panel be cajoled into working in the motherboard above with a change of BIOS or some other method?

 

Thanks for any help in this matter

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7 Posts

03-01-2019

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  • Message 7 of 18

Re: Possible to install P51 4K LCD (AUO B156ZAN02.1) into P50 4K?

2019-09-30, 16:20 PM

Just checking in to say I have just done this half an hour ago and it works great. My (xeon, UHD, m2000m) P50 had an accident and the display, lid and bezel were cracked. Replacing the LCD was easy but the lid was very tricky, there are many wires glued to the lid. The bezel just pops in/out.

 

The display looks amazing compared to the sharp I had before, really bright, though I do have some backlight bleed on the right hand side of the bottom edge and the bottom of the right edge. I am not sure if that occurred due to my unprofessional installation or is just an issue with my display, but it is not noticeable unless the background is all black. I'm not a graphics guy so not worried.

 

I use linux exclusively and the brightness controls are not working. I do still have the original windows install on here but have not tried it yet. I will look for a way to fix this.

 

@Claydonkey I can only assume you have a damaged or incorrect 40 pin cable or LCD. The AUO display does seem very delicate, especially across the bottom where it says "Do not touch". I can't help wondering if a slight bend there is the cause of my backlight bleed.

 

I am in the UK and bought from this seller: https://www.ebay.co.uk/usr/thinking-world3

They have the lid and bezel as well, but don't have ads for them (I had to ask). I paid $68 USD for the lid (00UR812), $23 USD for the bezel (00UR815), $158 USD for the LCD and $35 USD for postage from China which took 5 days (DHL). DHL charged £50 GBP VAT and admin.

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7 Posts

03-01-2019

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  • Message 8 of 18

Re: Possible to install P51 4K LCD (AUO B156ZAN02.1) into P50 4K?

2019-09-30, 17:11 PM

I just booted windows, and after about a minute the display flashed and it was then able to change the brightness (immediately after boot it could not). Still not working in Linux...

Display calibration in windows also went fine.

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14 Posts

09-13-2019

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  • Message 9 of 18

Re: Possible to install P51 4K LCD (AUO B156ZAN02.1) into P50 4K?

2019-09-30, 17:45 PM

I have a similar specced machine as you but with the i7 6820HQ (same m2000m) and it had the 30 pin 1080 screen installed as default; That still works when swapped back.
The new AUO B156ZAN02.1 however does not work (backlight comes on in discrete mode but that's it).
I have ordered a new p51 motherboard to try another config but judging from your message it looks like the screen is defunct and I may be throwing good money after bad.
The panel has not been subjected to any trauma by myself. I'll wait and see if I have any joy with the new motherboard. Do you think there is any way I can check that the screen is faulty?

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7 Posts

03-01-2019

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  • Message 10 of 18

Re: Possible to install P51 4K LCD (AUO B156ZAN02.1) into P50 4K?

2019-09-30, 19:26 PM

I got the brightness controls working in Linux. Since my LCD was broken I was using a display connected to a dock, so I had it set the dock display as default in the BIOS and also selected discrete graphics. After changing the BIOS to built in display and hybrid graphics, brightness controls work fine.

@Claydonkey FYI my bios is N1EET71W (1.44), which looking at https://support.lenovo.com/gb/en/downloads/ds106108 I see is not the latest. From the change log (https://download.lenovo.com/pccbbs/mobiles/n1eul41w.txt) they seem to frequently add support for new LCD panels. Could it be that your BIOS is too old? (Also, there are loads of security fixes in the BIOS updates... I should update!). The only way I can think of testing the LCD is to put it in a P50 that already has a 4K display so that you are not changing anything except the display (you're welcome to visit me, I am near Winchester, UK :D).

Also, I would be really interested to hear if your motherboard swap works out, I haven't heard of anyone doing that successfully but did wonder about it myself. I think it would only be of interest for a GPU upgrade I suppose, as almost everything else is the same I think?

 

The only other thing to note is that I did get a motherboard replacement at some point because I had overheating issues. It was replaced by Lenovo under warranty, but I'd be surprised if motherboard revision has any bearing on LCD support.

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