Any generic one. That supports 25 watt. https://priceoye.pk/mobile-chargers you can check your budget and priceoye.pk

Yep

And check for Software Updates. 

BTW, Here are a few tips that you can try: Try to Rest Camera setting's : Go to the Camera app, tap on the settings icon (gear), and select "Reset settings." This will revert any changes you've made and might resolve the issue Clear Camera Cache: Go ...

Is it New, or used?