Hi I bought my son a cheap android tablet from China because I wanted to get a cheaper version before spending a lot on one if he wasn't responsible enough yet. It came with no name on the box or the device, but when plugged into my pc it says it a Galaxy (not sure which version). Anyway the tablet worked fine for a while, but now won't fully boot. It is stuck on the ice cream sandwich logo. I've tried hitting the reset button and doing a factory reset all to no avail. I heard that there is a way to reinstall the OS but don't know how. It has Android OS 4.0, Kernel 3.0.8, Build Number V1.5.0. I have another android which is a Nobis 9 running Android version 4.1.1, Kernel Version 3.0.8, Build Number NB09.20130929.v005 and wanted to download the OS to the SD card or USB and reinstall it from there, but can't find clear instructions. I tried the cydia impactor, but it says there is no device when there is one. Can someone please help me to fix this issue as he really needs his tablet for school (I'm afraid to give him mine because he may have deleted a file that was used in the boot process, he's only 8). Please give me step by step instructions as I'm familiar with installing OSs, but not an Android for a tablet. Thanks in advance for any retentive replies.