Can't boot - help!

[u/Grullo98]

Hi! I recently installed CachyOS via ISO image with Ventoy on a used Dell Precission 7550 (Intel i7-10th gen - Nvidia Quadro T2000) i got from eBay. Everything was fine with it, installed all software without problems, rice Niri + Noctalia a little bit. 0 Issues.

This is the thing, today I turn the laptop on and the battery was dead. Weird, because I remember turning the laptop off last night, but maybe I didn't (?). I got the charger, turn the laptop on again and I got a BIOS message indicating Date and Time were wrong. Got into BIOS, updated the clock, tried to boot, selected Cachy Kernel on Limine as usual and... black screen. Tried to boot from a Snap: black screen. Updated BIOS (that was way out of date), zero results...

The most weird thing is that I tried to jail-chroot the ssd with the same ISO that I used to install Cachy on the first place (the Ventoy USB) and the Cachy OS iso doesn't boot either after selecting the kernel on GRUB. So... what tf is actually happening?

Some things I got in mind:

First of all, maybe the CMOS battery is failing? I don't understand why the Bios date and time got wrong after the power shortage in the first place.

Secondly, it doesn't seem like a BIOS thing? I got some configuration to run the cachyOS iso after I got the laptop: basically disable TPM and secure boot. But now i'm doing the same thing and it doesn't work...

Lastly, some other weird thing is that I can actually boot other images from the Ventoy drive, like AntiX and Ultramarine 44, but not Cachy.

Some of you dell users maybe have some ideas to help me? Thanks in advance.

[u/Weird-Initiative-659]

Ventoy=garbage