Re: how to upgrade to 2.3.5 to 2.3.6 on zte v9 tablet
If you plan to upgrade your device to a later version of Android, I would recommend CyanogenMod. But this will mean you will have to root the device (if you haven't already), then follow the instructions on how to flash CyanogenMod to your device.
Hopefully this helps you, please let me know how it went. Also i'm not responsible for your phone breaking or turning into a brick, you MUST root and flash a custom rom at your OWN risk!