TI-35 Galaxy Solar Calculator - Can we fix it, and can we sell it?

In this video we try to fix a TI-35 Galaxy Solar Calculator from 1984.
The calculator initially didn't turned on, and it was terribly dirty.
At the end, it was soled one eBay for around £10. If you would like to make profit, don't follow this path, it's not worth it. If you like to learn how this things are working, how can you make it better, then watch, like, subscribe :)
Can we fix it and can we sell it?

Some materials in this video:
Some type of toothbrush - for cleaning
https://elevenlabs.io/ AI speech Synthesis / As my family is noisy and I'm tired to record everything again and again
DeoxIT green - cleaning conductive surfaces
Co-op Antibacterial Multi Surface Cleaner Apple 500ml - Cleaning Cleaning non-Conductive surfaces

I don't know what else... If I missed something, just ask, and I will update.

@southlondonrepair We are based in Addiscombe, South London. We repair consoles, Audio - Video equipment, televisions, vintage electronics and anything else what the customers can bring it in.
We do love trying to fix broken things, so it not going to the landfill. Check other videos in 'Trying to FIX' series.
Thanks for watching the video. Please subscribe and post any question in the comments section below - we are more than happy to help.
You can also contact us in email: [email protected]