This post is meant to be a one-stop guide to using pre-built modifications for the CMP741e tablet, partially due to popular demand and partially to recruit guinea pigs for the modding efforts in the ThinkTank thread. If you feel that anything is missing, let me know and I'll see about adding it. DISCLAIMER: I do not take responsibility for any of these instructions breaking equipment or causing data loss. Tablet Versions There are actually two versions of the CMP741e tablet. Both have almost identical specs, 1GHz Allwinner A10 SOC (Coretex A8 CPU, MALI 400 GPU), 1GB RAM (shared with GPU), 4GB flash (split for all tablet storage, 1GB is system and 2GB is "internal SDCARD"), DMARD06 Gsensor, Realtek RTL8188CTV WIFI. The difference is the touch digitizer, some tablets are using the Goodix GT811, others are using the ZET6221. Identify your tablet The best known way to identify is to use a terminal emulator on the tablet or ADB from a PC to execute lsmod and see if the zet6221 or gt811 driver shows up in the list. The manufactured date might also give this away. My GT811 tablets say July 2012. Please post if yours differs, or if you have a better identification method. Recovering if something goes wrong: Allwinner based tablets are near impossible to brick if you do something wrong. They're capable of reloading through USB with a program called LiveSuit or through the SD Card using a program called PhoenixCard. Both programs use the same img files. They're even capable of booting an OS from the SD card if necessary. Use the instructions available on the Craig Website If you have a ZET6221 tablet, use the recovery on the Craig Website If you have a GT811 tablet, use my recovery image with phoenixcard. Using ADB Download and install the Android development tookit from here: Android SDK | Android Developers NOTE DOWN WHERE IT GETS INSTALLED Install sdk tools, sdk platform-tools, and the google usb driver (in extras). Plug in your tablet with debugging enabled (comes on by default, if you install a new ROM you'll need to enable it again). Do not enable USB storage. Open a command prompt (cmd) on your computer. CD to the SDK directory, and then to platform-tools. adb shell will open a remote shell on your tablet. Rooting and installing Android Market After ADB is working, you can root and install android market with the stock software. Follow the instructions at How to Root and Install Google Apps on the Craig CMP741D Android Tablet - TheUnlockr . Try running windowsstart.bat first. If that does not work, double click RootThat.jar. I've found sometimes the tool doesn't seem to do anything, just close it and try again. Backing up settings and apps for carryover to new ROMs Download Titanium Backup, install and run. Go to the schedules tab, and run Backup new user+system apps & newer versions. Then run redo backups for modified data. Installing CWM recovery Developers often package their software as zip files instead of img files. These zip files are installed using Clockwork Mod Recovery. The latest available for our devices is 22.214.171.124 at CWM Recovery 126.96.36.199 for Allwinner A10 LY-F1/TREQ Tablets - xda-developers. After rooting, unzip and copy these files to your internal sdcard. Next, either from a terminal emulator on the tablet or from ADB: cd /sdcard sh install-recovery.sh In order to enter CWM Recovery, enter sh reboot-recovery.sh CWM Controls Power is select, + is up, - is down,  is back Instructions after this point assume that you have installed an micro sd card. Doing so is HIGHLY recommended. Backing Up and Restoring with CWM - Nandroid Backup Before you do anything else in CWM, you should make a backup of your tablet's current state. This is usually referred to as nandroid backup. Select backup and restore optional: select backup method. by default, CWM does a diff every time you back up and only backs up differences. selecting tar will do a complete dump of the tablet instead (this works better for dev purposes) Select backup If you need to restore, later on, come back to this menu and select restore instead. You'll be presented with a list of dates and times you restored. Installing new software See post #2 for compatible ROMs and supporting files When switching between different ROMs you need to follow these steps: Note: Doing a factory reset isn't recommended, I've seen reports about it messing up the partition tables. Mounts and Storage Format /cache Format /data Format /system go back advanced wipe dalvik cache go back install zip from sdcard choose zip from sdcard select the zip file for the ROM if needed, choose zip from sdcard and select the compatibility zip choose zip from sdcard, selet the gapps zip go back reboot system now Upgrading software If you're upgrading to a new version of the same release (say a newer version of CM10.1) then these instructions may be followed instead: Wipe cache partition Advanced Wipe dalvik cache go back install zip from sdcard choose zip from sdcard select the zip for the ROM if needed, choose zip from sdcard and select the compatibility zip go back reboot system now Restoring apps and settings on the new ROM At this point your tablet will seem brand new, but of course you want your old apps and data back. Download and install Titanium Backup again. Switch to the Backup/Restore tab, and one by one restore app+data for any apps and settings that you want to restore. DO NOT restore any system apps (usually shown in red in TB).