Yes, it’s recommended to replace the SP4 screen with an SP5 screen - so you can rest easy

Glad yours is usable still! Mine went from fine to unusably flickering within the span of a week, so it set in fast. I babybabied it too hoping to avoid the issue - I guess I just prolonged it till it microsoft wouldn’t fix it anymore. rip fuck this corpo created e waste shit (I use it as a comp strapped to my TV now)

Ditch it, the Surface Pro 4’s are cursed via shit manufacturing.

Its screen will fail sooner or later https://flickergate.com/ . I had one, it started flickering after the “extended” warranty. The display is useless now. Nothing fixes it. At first the flicker stopped if something on the screen moved, so I used this https://github.com/Acie1998/Surface-Pro-Screen-Flicker-Solver to mitigate it. But within a day or two it was worse. I tried a reduced refresh rate, but that did not help by then. It quickly got worse when in use, within minutes after a week of the flickering starting. A used one is just pre-accelerated to its demise.

Replacing the screen - even opening the device - is egregiously dangerous because the screen often cracks when taking it apart. Microsoft abs sucks for making a device that can’t last when it clearly should. (Not to say anything about your specific problems! It sounds like the battery needs to be replaced, but it can run without a battery as far as I know so not sure why it can’t power up with it heavily depleted)

Edit: if you’re going to remove the sceeen, replace the battery and replace the screen with a surface pro 5 screen. They sell them. The batteries get fucked quick cause the heat sink cooks them, so it’s prob the battery causing your problems (mine had shit battery life at its end too)

Here is a blurb from Reddit describing what to get (ifixit apparently sells a surface pro 5 screen as well if you want one degree better than direct China): My advice, if you have a Surface Pro 4 with an Samsung Panel is to replace for an LG Screen from Surface Pro 5/6. You need to buy this LCD cable too for that conversion: M1010537-003

You can check in the device manager which LCD panel you have on your Surface