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ARM Cortex A9 Android TV box stuck on Android logo

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Instructions :
extract files on to a 4g sd card
put sd card in your box and put a pin in the av hole to hold in secret button and wait it should start installing firmware
Does it have to be 4GB?

I have a device which I have problem with. It doesn't have any button on it. no volume, no power. I opened it and connecting two pins I got it into recovery mode with the android guy resting. I had another same device and using online nandroid backup I made a CWM backup and transferred the files (boot.img, recovery.img, and ....) to 16 GB SD card but nothing happens and since there is no button I can't access any option in recovery mode

any help guys?
 
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Have you tried plugging a usb keyboard into it and use the arrows and enter etc
Yes I tried connecting keyboard to it but doesn't work. there is no way I can get to any recovery option to ask the device to update from SD card.

there is also another three pins which underneath is written debug. I bought a usb cable which one side is only wire. I tried to connect the wires to the pin to see if I can connect it to PC and use TKBatch tool to flash it but PC doesn't recognize it
 
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9FJXC.jpg



This is the picture of the board
 
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Hey I made a major mistake with my sister's Mx A9 Mbox .. I taught the name of the Android box was just (Mx) an I type how to update firmware . I was doing this cause I was hoping to stop the WiFi knocking off an staying off problem she was having ,, anyway I googled how to update mx firmware an the first link on Google was a video an he said if you have a mx , mx2 or g-box this will work . I followed everything he said on the video (my mistake) I updated to firmware 1.2.2 mardicom an it's a g-box phone 2013 know my android box .
I can still get in to recovery I want to get back to stock of the Mx A9 Mbox if it's possible ..

I have tried the mx42_M6-20130322p 20130820 xbmc12.2 an it fails less than int(1376986756. getprop.("ro.build.data.utc")) allation aborted

What is the right stock firmware for this model an why is it failing on other zip files .
Thanks
 
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