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The phone only charges with a special cable, and I can’t use another one, however, I have to put it in a specific way that it’s very tiring. Please help me

Hafah this “ have to put it in a specific way” is usually caused by a damaged or failed charging connector. Of course you do want to try other cables as well just to rule the cable out as being faulty. If the cables are good, consider changing the “daughter board” which holds the connectors etc. https://www.ifixit.com/Guide/Samsung+Gal