Post a photo of the laptop, I'm pretty decent at identifying laptops. Looks like it was made by Plus & Plus Co:
https://fccid.io/HGEARC3025
Your non-booting issue sounds like you have some weak capacitors.
This is what I bought:
HAS MS DOS INSTALLED, when turned on, the drive format needs to be changed and it can successfully boot in dos.
www.ebay.com.au
Are you able to see that?
My issues with the hardware are:
1. Memory test says 2 MB extended RAM approx, but I believe there is 4 MB.
2. Screen is normally black. After letting it rest for 24 hours or something there is a 20% chance that the screen will come back.
3. Even if the screen has something, it is normally only good for seconds, before it goes crazy. But this isn't a problem because I can use an external monitor. But the monitor doesn't show anything if the internal screen was originally black.
4. Floppy did boot when I got it, but didn't reach the minimum memory requirements for PDOS/386 (4 MB total). I trimmed PDOS/386 down so it will accept 2 MB, but now the floppy doesn't boot, but it may not be a floppy problem.
5. System said the floppy drive was bad today.
6. It won't let me set the amount of memory to 4 MB or even disable it - it keeps doing its own tests and insists on setting it to 2 MB. Even if I press a key to skip the memory test.
7. Setting the hard disk type to 24 gives me the 40 MB default hard disk described in the manual, and it does say the word MSDOS, but HIMEM tests upper memory and never comes back. Not sure if changing RAM wait times or something in the BIOS might help.
BFN. Paul.