It sounds like you’ve been quite resourceful during your quarantine! It’s great that you’re revisiting your old electronics and trying to troubleshoot the Cube i7 stylus. The charging issues you’ve described with the barrel connector sound frustrating, especially having to manipulate it just to get it to charge.
Using a USB-C PD charger is a smart approach, and it’s unfortunate that it didn’t work for your tablet. Your idea about re-wiring the battery ribbon connector to adapt it to a wall charger is interesting, and while it could potentially solve the power issue, it does come with risks, such as damaging the tablet or voiding any warranty.
If you’re considering that route, make sure to do thorough research and maybe look for guidance from others who have attempted similar modifications. Community forums can be a treasure trove of information and support. It might also be worth exploring other options, like looking for a replacement barrel connector or finding a specialized repair service, before committing to a DIY project. Good luck, and I hope you find a solution that brings your Cube i7 back to life! Net Worth