M8S TV BOX Android - Verification signature failed - Installation aborted

[Mikal]

Hi,

I have a tv box android (M8S http://epictvbox.com/wp-content/uplo...50846_orig.jpg) with boot loop android logo.

I tried the factory reset get the access in recovery mode, but this doesn't working (the tvbox is again in boot loop).
So I downloaded many firmware to flash the box, I extract the zip downloaded and copied the files extracted ( 1 zip file, 1 img file and 1 aml file) in the root of sd card.
But, when I try to install the firmware the box get the following output:

Veriyfing update package...
Failed to verify whole-file signature
Signature verification failed
Installation aborted

How can I solve? I tried to download many firmware but the output it's always the same.

Thanks

[neomode]

Hello,

I guess it has the S812 CPU.
If yes use the Firmware for the ProBox2 EX+.
You have to flash if from PC.

For the failure you get this comes from the recovery you have on the Box.
This means you can only install software to the Box when the update.zip has the right signing keys.

Neomode

[Mikal]

Hi Neomode,

How to find exactly my model? I don't know if it's S812, on board don't read any similar.
How to flash the firmware with the pc? Through SD card it's not possible?
Where I find the PROBOX2 EX+ Firmware?

[Mikal]

Maybe the following is the exactly model.
On board there is written:

XT-MX4VB-V02

It's significant this inscription?