I need to flash a new firmware for my china X-302 Tablet (detail below). From the producer i have got a package containing firmware, stock rom, sp flash tool, drivers etc. When I want to use flash_tool.exe select and add download agent (for example MTK_AllInOne_DA.bin or more) then pops up an error:



Tablet at that moment I connected. Usb driver da Vcom I have installed.

tablet: x-302 of Dragon - h701

Android 4.4.2 kernel 3 April 67

Build ALPS.KK1.MP1.V2.11

Tested on Windows 7 32bit, Windows 10 64bit (I also tried compactibility mode).


Standard drivers are installed. The tablet normally communicate, install apk using adb, run and Debug android/Xamarin applications using Visual Studio. This is all OK. If you think MediaTek USB VCOM drivers, so you've got installed:

MediaTek DA USB VCOM (Android) (COM18)

MediaTek Preloader USB VCOM (Android) (COM19)

MediaTek USB Port (Android) (COM22)

MTK USB Debug Port (COM20)

MTK USB Modem Port (COM21)

I had to allow installation of unsigned drivers, and then writes were installed OK. But device has warning "This device can not start. (Code 10). I tried different ways to install or other version, but always writes this warning. However, on the forum, I found it's not a problem. SP Flash tool may work...

  • Assuming your computer runs Windows: have you checked with the device manager (Start › Control Panel › Device Manager) whether your tablet was recognized and integrated correctly? – Izzy Mar 3 '16 at 11:08

I finally discovered that the problem was in the path to download agent, where was the Chinese characters for example :

**x-302 NEW firmware \ 线 刷 工具 和 驱动 \ mt65xx preloader 驱动 **

I just retype to :

**x-302 NEW firmware\Flash\mt65xx preloader**

and then it works correctly and retrieve the download agent. In all the tutorials I could see that the used path with Chinese characteristics and it worked. However, in my case not.

Here is some helpfully link : Tutorial flash device with mediatek chip 1

Tutorial flash device with mediatek chip 2

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.