My GPD Q9 Review
Android games: Exiles, Strangers Wrath, Bladelords
Emulation: Fighting Force 2 (psx) Contra Hard corps (md) Untold legends 2 (psp)TIPS
Q9 1.7 firmware seems more stable battery wise (dont recommend using 1.8 firmware)http://pan.baidu.com/share/home?uk=389368662#category/type=0
UPDATED OFFICIAL FIRMWARE:New version of firmware v1.1.1 (international) (thanks skeleton)http://pan.baidu.com/s/1ntkjXQp
Use the built in cleam master app to delete all bloatware and junk, (and then remove clean master itself)
Battery calibration app is important after firmware upgrade (use once after charged to 100% from playstore)
Heat is manageable because the clocks seem a bit more stable.
(Set cpu profiles do not work with this device so far, that would be ideal)
hope this is useful for somebody.IMPORTANT:DEVICE REAL CLOCK RUNS @ 1.4Ghz ONLY NOTES FROM SKELETON'S RESEARCH
Some more digging I have made these days. I got access to latest RK3288 SDK. My suspects were certain, device in latest firmwares is limited to 1,4 ghz (it marks 1,6 ghz but that frequency is never used). DDR Speed is 400 mhz and GPU is 500 mhz. Talking with a GPD engineer they tell me the main reason is the heat. Device has not a good heatsink, so the "workaround" they made to avoid is basically to underclock the device, because some devices can suffer some instability even at 1,6 ghz. Even the system reaches a certain temperature, device speed is automatically lowered. I guess this what happened with nielo360 when he got his device. He suffered some CPU throttling due to temp.
I personally have tested kernel at 1,6 ghz and run without problems in my device. However, true 1,8 ghz is practically impossible to handle in this device. Device is not stable in my testings because I have to increase voltage to 1.4V to make it stable, but means device temp go high very soon and CPU Throttling and crashes are frequent. So I am afraid that 1,6 ghz is the max for this device. And probably the reason why Rockchip limits CPU to 1,6 in tablets. In tvboxes is different because of good heatsinks, but in a tablel 1,8 ghz is impossible to reach it.
With that said, I am using my device with the 1,4 ghz limitation and for me it's fine. Emus run good and the Android games that I have tried run without issues, so probably that speed is enough.
Comparison to tegra 4 shield portable:
Just received the q9 unit, review should be up youtube by tomorow if I can get the play store issue sorted but here are the issues so far:
play store: iv tried my best to install it, even after google services is installed it crashes.
(i need tincore to get R3/L3 functions hence play store)
weight: the device is not too heavy but its enough to hurt my left hand & fingers after 25 mins of gaming due to lack of proper grip and all the weght pushed on the hand. (will explain this in the video) The balance is really bad for me personally however it may be fine for other users. I did not have this issue with the gpd g7.
Nubs: the analog nubs keep rotating in circular motion which make them annoying to use, either this is by design or they are broken(i doubt its broken since both nubs do this)
Screen: the ips screen has good viewing angles..but the colors are dull which is probably to be expected. Brightness is average at best. Maybe a color correction vivid mode mod like in cryogen can fix it.
Heat: the back does get pretty warm and you can feel it in your fingers, its not too bad but this may due to the poor heatsink placement.
speakers: They are stereo and pretty good however the volume needs to be modded as it can be low in some emu's.
Dpad: this has the best dpad iv ever used, which is unfortunate due to the device its on.
would appreciate if someone could tell me the proper method to getting play store working.