⟐ Answered January 18, 2026 at 5:26 MST

⟐ Answered January 18, 2026 at 5:21 MST

⟐ Answered January 05, 2026 at 20:28 MST

⟐ Answered October 14, 2025 at 7:42 MST

I have tried this several times over the past three months (as in, I bought a screen off of amazon, didn't work, send it back, repeat like three times) and while I can get the screen itself to display content (at least two out of the three screens), I can never ever get the touch controller to work and at this point, I am thinking that the Surface Pro 4 Touch controller just doesn't work with these surface pro 5 or that these screens off of amazon are all bad quality.

So at this point, I'm not even sure how to get this screen replaced with touch control. Should I try my luck for a fourth time on amazon? Should I try and buy another touch controller?

After i had replaced a surface pro 4 LCD, won't turn on battery mode unless plug it.

Before taking off the broken screen the pro was working good just the screen was broken, so i turned it off then started working on it. after taking off the old broken screen. i tried to connect the new LCD on to test it but no response at all.

it does only work when i plug it in the charger and it does show me that the battery is 100% full on the screen?

also i did put a piece of paper between the connects part for the battery and the motherboard. it does show me an X on the battery icon on the screen when i turn it on

but i couldn't resolve the problem for 1 week now and i have been searching online but no one has had these issues before.

so how can ifixit ??

⟐ Answered August 02, 2025 at 11:19 MST

If so, what special precautions should i take?

Thanks for your advise

⟐ Commented July 20, 2025 at 14:20 MST

I am in the process of doing my first screen replacement on a Surface Pro 4

I've got the screen off and disconnected all the cables without an issue following the guide here but I accidentally snapped one of the WiFi antennas during the screen removal.

The only website I can find for the part is :-

http://www.powerbookmedic.com/Microsoft-...

However they are out of stock

Anybody know another place I can get one? Tried searching for the part number (X939878) online but that's the only useful website that comes up.

Help!

⟐ Commented July 16, 2025 at 16:18 MST

⟐ Commented December 19, 2024 at 10:50 MST

Now I’ve purchased a brand new LCD pannel from Chinese Taobao to replace its original pannel Samsung LTY123YL01-005 (AIDA64 shows -001 though). I’ve learned from forums and websites that Samsung’s screen for Pro4 has flaws and Microsoft switch it to Pro5’s LG LP123WQ1 at the last batch. So I also purchased LG’s.

The seller told me that connector cable also needs to be replaced because Samsung’s is not compatible. After a few days I received my new scrren and connector. But after installation I can see nothing showing on the new screen, it was totally black including the backlight.

I’m confused. Is that old Surface Pro4 model incompatible with new LG screen? The new connector can connect scrren to mainboard correctly and OS boots normally but I can’t get any image.

Another thing is I discovered this new connector’s solder joint having some problems. AIDA64 cannot find new pannel’s name(viewed from Microsoft RD) and I doubt that the seller sending me a bad connector.

Now I’ve bought a new connector from another seller and it’s on the way. But I still holding the question. Can Surface Pro4’s Samsung screen being replaced by LG’s directly? Did anybody also completed the same replacement?

⟐ Answered October 28, 2024 at 20:06 MST

I was following the step-by-step instructions for replacing the battery, when I ran into my main challenge; rying to separate the screen from the main body of the device.

The step I was on involved using the iOpener heating pad to apply heat to the screens edge, in order to weaken the adhesive enough to gently pry it loose. The instructions were clear in that I should apply the iOpener to the screen edge in 2 minute increments. I might have to reapply it several times in order to get the screens edge warm enough to weaken the adhesive. But not soo warm as to damage the electronics underneath the glass or cause heat shock to the glass itself.

My problem is this: I've been unable to get the screen edge warm enough to weaken the adhesive. I have applied the iOpener heating paf in 2, 4, 6, 8, and 10 minute increments on separate attempts. Everytime, as soon as I remove the iOpener heating pad, the heat almost immediately bleeds away, and I'm left unable to wedge the provided tools underneath the edge of the glass.

I feel as if I'm not doing something correctly, but am unsure what that would be. Am I simply not applying enough heat? Where is he line between enough heat to weaken the adhesive and enough heat to damage the underlying electronics. I would greatly appreciate any insights and or advice into this matter, as this is the first time I have attempted this kind of repair. Thank you.

⟐ Answered October 26, 2024 at 14:00 MST

The CPU is getting hotter after i pus the start button , and if i attach the keyboard on it , the light from the keyboard starts. But nothing on display or even on external monitor.

In red zone that i marked i have short to ground. Can be some part burned , or the CPU ?

Thank you

I put even a picture with my real board.

⟐ Edited by author August 08, 2024 at 16:04 MST

⟐ Edited by author August 08, 2024 at 8:25 MST

I can’t really figure out what the problem might be. Maybe someone can give me a clue where to look next or what it might be?

A few more notes:

• When I tore off the screen I broke one of the three antennas at the top, but I would guess this wouldn’t cause this problem.
• When I first tried to turn it on, I forgot to connect the fan back to the mainboard. I fixed that very shortly after.
• After it didn’t work the first time, I removed the battery again and put it back in, but that didn’t help either.

I hope that is enough information!

⟐ Commented August 02, 2024 at 18:48 MST

⟐ Commented June 23, 2024 at 21:58 MST

⟐ Commented May 30, 2024 at 1:43 MST

Thanks.

⟐ Answered May 11, 2024 at 8:08 MST

⟐ Answered May 10, 2024 at 20:58 MST

I am working on repairing an old Surface Pro 4, and during the process unfortunately destroyed the X933422-005 flex cable/antenna that is mounted in the top bracket of the device. Here is a link to an example of the part. Mine does look slightly different, as it says "UFK 5115 152 X933422-005" on it. I have also circled the part in the below image.

I am trying to decide if I need to perform some more aggressive repairs, in an attempt to replace that part, or if I can simply live without it. It looks like some sort of antenna, but Bluetooth and Wi-Fi seem to be working, so I am not sure what it's purpose could be.

Thanks!

Now i know the red line and padlock means secure boot is disabled, but it wont boot into either the UEFI or a recovery USB and an Arch Linux USB (that i tested and they worked on my SP3 (that i found in the same bin))

It doesn't look physically broken or like its been taken apart before, it could have liquid damage, im comfortable with trying to open it up but i'd rather not.

Any help is much appreciated! I'd love to fix it but i didnt pay a cent for it (other than buying a $30 charger off amazon) so it doesn't matter too much. I may take it to a Microsoft store tomorrow since they were a great help with my SP2 a couple years ago, but i'd love to do it myself.

⟐ Answered April 26, 2024 at 9:11 MST