Hello I download ROm from MEGA but I don't now how to instal it on my phone. Please can you give me step by step instructions

In new phone update is app in

Please send me the video to on my pm. Thanks

My usb hole for charging doen't work. I put in a cable for computer connection doesn't recognise it and it is the same with charging cable, night vision camera (I download apk and say that camera isn't conected) and with headphones. I don't think is the cable because I use 3...

some times charge my wireless very slow sometimes very quick

Hello

I put cable with extender in phone and the other one in pc  and don't reconiste it and if I want charge phone by cable the phone don't charge. Is there any software or someting to install to pc?