Unrooting the Acer Iconia Tab A 1. Download and place the Stock Firmware onto your Desktop. 2. Rename the firmware file to adopteesofcolor.org The Android Jelly Bean firmware update is not an official release but only a Custom ROM update for the Acer Iconia Tab A hence no. Acer Iconia Tab A Platform OS Android OS, v (Ice Cream Sandwich) Chipset Nvidia Tegra 3 CPU Quad-core GHz GPU ULP GeForce. Basically, I need to find the stock ROM for the Acer Iconia Tab A, in English. I' m fairly confident with flashing it as I have that figured out. want to update my firmware due to problems, but I can not find the Acer Iconia Tab A update – official firmware (OS – ) · Acer Iconia. First off: Yes, this ROM is for the Acer Iconia TAB A The software is taken from A tablets and modified to run on your A tablet, thus. iconiaN is a project I am starting to bring a unified stock rom to the A that will work on devices from all regions. I will soon be making iconiaN. Download Android ICS and Jelly Bean stock firmware for Acer Iconia Tab A tablet. You can download from below the Android stock. Acer Iconia Tab A can be finally updated with the stable CM Android Disclaimer: All the custom ROMs and firmwares, official software. Discussions and Information for custom Acer A ROMS. This area contains Acer Iconia A ROM releases. acer a stock rom.