Author Topic: Charge and use usb simultaneously  (Read 319 times)

AthenaX7500 (OP)

  • *
  • Posts: 53
Charge and use usb simultaneously
« on: December 01, 2018, 11:10:40 pm »
Hello,

is the rk3288 chipset, found in GPD Q9 abd GPD XD, able to charge and use usb simultaneously?
I tested this two devices with no luck.

With the GPD G5A it worked, despite it has its own external charging port.

The configuration is: a usb otg cable, a 4 port usb hub, a ps3 controller and a usb charger.
I used apps like gravity box and 3ctoolbox to confirm the battery voltage does increase.

P.s.:

The GPD G5A power icon in the upper right screen, change to charging state as soon as I plug in the bare usb otg cable (without plugged in usb charger or other devices).

The GPD Q9 and GPD XD power icon in the upper right screen, does not change to charging state as soon as I plug in the bare usb otg cable (without plugged in usb charger or other devices).

It is ironically:  GPD Q9 and GPD XD has no external charging and would profit from charge and use usb simultaneously.
                        GPD G5A has external charging port and does not need charge and use usb simultaneously.

Perhaps it is just a software problem.


Thanks in advance.


tiagao_extremo

  • **
  • Posts: 721
Re: Charge and use usb simultaneously
« Reply #1 on: December 03, 2018, 12:14:55 pm »
I can't remember if i've seen it here or at reddit. But it seems that this is a hardware limitation, which means that we can't charge and also use a usb hub. It's a shame, in my opinion this is the biggest limitation for this device. I also had the g5a and it was much better playing using my wireless gamepad while the battery was fully charged.

 

Post a new topic