Battery or USB Charging port issue? - Samsung Galaxy S7 Edge Guides, News, & Discussion

I have trouble charging my S7 edge, It simply refuses to charge shows me that I have plugged in my USB charger by giving me a white lightning symbol but then disappears after 3 seconds or so and does not charge..
Here is a what happens after experimenting.
extremely Slow charge and fast drain - My phone stays on in "Download Mode" whilst plugged in - 4/5 hours later I had 26% after 30 mins mild use took it down to 13%
No USB Connection detected? - Whilst I had some battery life I have no USB connection in either ODIN / FIle transfer at all with my computer
No Wireless Dock Charge - I Attempted to charge my device by wireless , it also refuses this.
I'm confused , surely just a battery issue would still allow file transfer? If it was just a USB issue - why does it charge in download mode? why no wireless charge?
Weird?
Thanks
Duplicate thread closed.

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Pc does not detect phone and no fast charging

Hii guys
There are two problems
1. Pc does not recognize phone. It only charges
Till now tried.
Changing cable ports computers not worked
Enabling usb debugging. Not worked
Factory reset. Not worked
Connected in odin mode. Not worked
No option to change usb connection type.
Tried from dialer(after some code ) (mtp+adp something like this option did not remember now)
2. Fast charging issue
Charging takes 6 hrs approx. Notifaction drawer shows cable charging.
Till now tried.
Changed adaptive fast charger. No success
Changed cables no success
Turned on/off fast charging option in battery settings. No success
Used different chargers. No sucess
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After searching on internet for both the problems i did not get any working solution.
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