Hardware Nintendo Switch black screen, battery fully charged

[Tigermean74]

Hi all, need some help please, I recently bought a switch off eBay, The ad said it would not charge and would not power on. I have been diagnosing it for a couple of days now. I suspect it is stuck in AutoRCM mode, the person who sold it, said it was part of a job lot and it was sitting in a box for a while before he sold it. I managed to remove the battery and put it in another switch and it was charging fine and had 98% charge. It also shows up in "TegraRcmGUI" as "RCM detected" even without the jig and having to hold "power" and + volume

I then put the battery back into the original switch, tried loading various payloads to remove the AutoRCM but still nothing but the black screen. I then tried loading Briccmii.bin and gptrestore and I finally get some life on the screen. Unfortunately, it is just coloured lines right through the whole screen but you can make out some writing if you look closely. I have attached some pictures.

The guy who sold it to me also mentioned it may have been dropped at some point as there is a small crack on the plastic case beside the charging port.

Could this be an actual faulty LCD screen and needs replacing or the LCD connector? Would really like some help please on how to diagnose this further without buying parts for it unnecessarily

Thank you....

 

[Agilato]

Check if LCD connector has any bent pins.

 

[Tigermean74]

I've checked it, doesn't look like any bent pins, I've attached some pics...