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MK809IV: USB device not recognized

23rd August 2014, 07:35 PM |#1  
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Hello, I have a problem with my MK809IV stick. It seems to be a hardware problem or a feature of my device, maybe you can help me. I can't flash any rom to my stick, because when I plug it in my PC, I have a message "USB device not recognized". I tried different methods, such as pressing Reset key or making contact between 8 and 9 pads of NAND - no result. At first case I can see an Android picture on the screen (sure, if I connect it to TV), at second case nothing really happens: even CPU stay cold, no picture on sreen.
As I know, it's a problem of devices (not only MK809IV), which have PCB, marked CYX_809III V5_0 20140510.
Please, help. My device works bad, there is a low FPS in films, and I can't flash any ROM. I spent a lot of hours trying different methods and searching for information.
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25th August 2014, 05:28 PM |#2  
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Same here
Quote:
Originally Posted by Ancharas

Hello, I have a problem with my MK809IV stick. It seems to be a hardware problem or a feature of my device, maybe you can help me. I can't flash any rom to my stick, because when I plug it in my PC, I have a message "USB device not recognized". I tried different methods, such as pressing Reset key or making contact between 8 and 9 pads of NAND - no result. At first case I can see an Android picture on the screen (sure, if I connect it to TV), at second case nothing really happens: even CPU stay cold, no picture on sreen.
As I know, it's a problem of devices (not only MK809IV), which have PCB, marked CYX_809III V5_0 20140510.
Please, help. My device works bad, there is a low FPS in films, and I can't flash any ROM. I spent a lot of hours trying different methods and searching for information.

I have the same device, having the same issues, and i have tried almost all what you have done so far. Really looking forward, if some one could help with this. I want to install linux on this tv stick.
28th August 2014, 12:38 PM |#3  
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Look at this thread:

w w w.freaktab.com/showthread.php?15752-CYX_809III-V5_0-20140510-%28CX-919-MK809IV-clone%29-not-connecting-to-PC-as-USB-device-for-flashing-rooting

It is almost the same device (same PCB, but sell as a "CX919"). We are able to boot on linux with an sd-card, but (up to now) I cannot make the wifi works (it is a uncommon wifi module: ESP8089).
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