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ClockworkMod (CWM) Recovery easy install for RK3066 and RK3188 -- TWRP/CWM Flash-Tool and root for RK3288

 Please donate to support OMA and CrewRKTablets firmware work, thank you !

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[ RK3128 ROM ] Chuwi V17HD 4.4.4 custom root firmware (2015/06/21)
Build is for ESP8089 wifi.
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hadaak
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46
2015/07/18 - 00:48
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and the 5 GB internal partitioning 🙂

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hadaak
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2015/07/22 - 12:54
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I'm testing the charging rate of this tablet and it does not go beyond 1.10 amps using the original charger.

This is only when battery is completely empty. when it is at around 50 it goes down to 0.50-0.60 amps !!! it has a 3000MAH battery. So this tablet does not really have a fast charge like the other tablets I have (ainol aurora) which does suck 1.5 amps out of the ainol charger. The charger cable of this chuwi is rated 26 awg which around 1.3 amps (enclosed) (https://wiki.xtronics.com/index.php/Wire-Gauge_Ampacity), which is less than real power usb cables which are rated 24 awg. (2.1 amps enclosed) . The ainol charger is rated 22 awg which is rated 5 amps (enclosed).

I bought some 22 awg usb cables to test more and to have handy for my other charging devices.

really cheap on ebay:

http://www.ebay.com/itm/10X-pcs-OEM-fujistu-Micro-USB-Data-Sync-Charger-Cord-Cable-22AWG-3A-current-/161769066347?

you can hack the cable to us it with the chuwi or other power hangry devices by soldering the right connector:

for the chuwi: http://www.ebay.com/itm/141226219751

or buy the ready made cable:

http://www.ebay.com/itm/5V-2A-AC-2-5mm-to-DC-USB-Power-Supply-Cable-Adapter-Charger-Jack-Plug-For-Tablet-/131239275524?pt=LH_DefaultDomain_0&hash=item1e8e786c04

This applies only if you want to use 2.1 charger with your tablet and quit using the original charger or if the original charger dies.

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hadaak
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hadaak
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2015/07/22 - 13:03
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hadaak
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2015/07/22 - 13:18
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Mister OMA, can you adapt the usb charging of the older chuwi model to this one please? Maybe checking what files are missing from this kernel will help. thanks.

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Oma7144

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2015/07/22 - 20:03
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In this price class most likely no PMU chip. Anyway, kernel sources are not available. Sorry.

- Oma -

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hadaak
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2015/07/26 - 13:44
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Ok. will do with the standard charger. the tablet charges at 1 amp with the standard charger. I will be adding a xiaomi 10400 external power bank to each tablet in a Tucano 7" case. so the setup will have enough power/runtime for my educational/school aid program. 

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2015/07/26 - 13:44
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What about the 5+ gigs for the system partition?

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Unpop
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2015/07/30 - 10:47
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Hi, thank you for the custom firmware! It seems to work just fine with #607 kernel. Just wondered, is there any fix for distorted aspect ratio? My tablets icons seem bit oval to me. Is there way to change resolution for example?

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2015/07/30 - 16:29
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What is the screen resolution? Can you pls do a screenshot and compare the screenshot with the screen?

- Oma -

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2015/07/30 - 18:55
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Oma7144 said
What is the screen resolution? Can you pls do a screenshot and compare the screenshot with the screen?

- Oma -

It is 1024x600.

Screenshot: https://www.dropbox.com/s/1xgn97wegzsvrn7/2015_07_30_18.22.13.png?dl=0

Photo: https://www.dropbox.com/sc/za5gzcf6gyxevlh/AABTADnjZlfJoeiYV3rVieRqa

Screenshot looks good, but tablets icons look too wide. It may not be evident, but you can see the difference if you compare round icons together, they look wider. Maybe the problem is with the panel?

Another problem I had with rom was that there were red borders in Google Chrome when pressing hyperlinks. Any ideas?

 

Thanks!

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2015/07/30 - 19:14
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The screenshot is in any case right. So what you see on the screen is the issue. This is hardware/kernel related. What kernel was on the tab before?

For the red frame issue install this via TWRP: http://crewrktablets.arctablet.com/?wpfb_dl=2609

- Oma -

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2015/08/02 - 13:35
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Oma7144 said
The screenshot is in any case right. So what you see on the screen is the issue. This is hardware/kernel related. What kernel was on the tab before?

For the red frame issue install this via TWRP: http://crewrktablets.arctablet.com/?wpfb_dl=2609

- Oma -

Thanks! Patch did the trick. Just noticed, that webpages color palet looks something like 8-bit colors and rasterized, any ideas? Original browser renders pages just fine and smooth. 

Forgot to mention that screen was distorded with original rom also. My kernel was and is #607, can I update it somehow?

 

Thanks again Oma!

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Oma7144

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2015/08/07 - 20:38
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Unpop said

Forgot to mention that screen was distorded with original rom also. My kernel was and is #607, can I update it somehow?

This clearly indicates that this is a hardware issue.

- Oma -

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2015/08/22 - 10:52
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Hi oma! Any ideas how to get HDMI out working? For some reasons i cant get connection. HDMI is on and tried dfferent resolutions.

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