hi there i am using chuwi v88 with oma latest window rom. i am confuse because i bought a 2.5mm usb cable and 2.1a 4 slot usb adapter , i use it to charge the cable only a few time and suddenly not working anymore and i bought a external battery with 2.1a output not working ... is it cause by the rom , because i've been flashing oma rom since the 4.2.2 . could it be the 1.6ghz oc and the 1...