Nintendo Switch Lite boots to first logo then black screen after FPC connector replacement

asdrubale · 2026-07-07T10:33:52+0100

Hi everyone,

I have a Nintendo Switch Lite on my workbench. It arrived with the FPC connector that links the motherboard to the daughterboard damaged. I replaced the connector, but now the console powers on only briefly: it shows the first Nintendo logo, then the screen goes black.

If I connect the charger while the console is powered off, the charging battery icon appears for a moment and then disappears.

Using a bench power supply, I noticed that the console does not complete the boot process. On a known-good motherboard, the power supply briefly resets its outputs immediately after the first logo appears, but this faulty board never reaches that stage.

From my experience, this kind of behavior can sometimes be caused by poor solder joints under the APU BGA. I have already performed a complete APU reball, but the issue remains unchanged.

I haven't found any short circuits or abnormal resistance readings.

Does anyone have any suggestions on what I should check next?

thesjaakspoiler · 2026-07-08T01:41:29+0100

If you have a modchip, check whether the files on the SD card are up to date.
Outdated files can cause what you are describing.

If you can boot into Hekate, check the fuse count.
If there is a fuse count mismatch, you will also see the logo but then you'll get a black screen.

Another thing to check in Hekate is the battery readings.
If you have no battery readings, then the communication with the battery management IC is broken.
Usually cut traces or missing resistors due to an attempt to remove the heat shield.

Nintendo Switch Lite boots to first logo then black screen after FPC connector replacement

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