Hello. I recently confirmed a Vodafone Smart Tab 3G to download and install an official OTA.
But now the tablet is stuck at UPRADING ANDROID - OPTIMIZING APP 1 of 57. I have the firmware but the tablet is going straight to charging mode. i tried all the button combinations and still it goes to charging mode. I removed the battery with the purpose of reconnecting it after i click the DOWNLOAD button on the SPFLASHTOOL and connecting the usb cable. But still it goes to charging mode. I am now convinced that it is not a drivers issue, because the windows machine has all the mtk vcom drivers, and UBUNTU 16.04 has SPFLASHTOOL properly installed and i can flash any other mtk device on it but not this VODAFONE SMART TAB 3G.
I also went as far as to install android kitchen, create a working folder, used the tab's system.img and boot.img for the project, did not customize anything on that rom, and then optimizeed the rom for high ram performance, packed it to an update.zip and finally i signed it and put it on the sd card which went into the VODAFONE SMART TAB 3G. When i try to update from zip (stock recovery) in order to get rid of the changes made by the OTA, it just says ERROR - INSTALLATION ABORTED. I know when i'm beat.
I need your help please.