Without official support, you will likely need to rely on community tools. The most promising method is using mtkclient , an open-source tool that exploits MediaTek processors. However, this is an advanced, command-line-driven process and there are no guaranteed, simple guides specifically for the A3 10.
If your ROM doesn't include Google Apps, install the GApps zip file in the same way. alcatel a3 10 custom rom
Change the entire look and feel of your tablet with custom themes, font packs, and icon packs. Without official support, you will likely need to
Searching for custom ROMs for the (typically model or Without official support
Installing a custom ROM is a technical process that involves modifying system files.
Ensure your tablet has at least 70% battery capacity to prevent unexpected shutdowns during the flashing process.