Asus Transformer TF300T users must be waiting for Jelly Bean update but it looks like they will have to wait for 3-4 months to get official update. Google has released AOSP jelly bean source code few days ago and developers are trying to port it on Transformer TF300T. XDA dev forum recognized developer XpLoDWilD has build a custom ROM based on Android 4.1 Jelly Bean AOSP codes for Transformer that is working file but has lots of major issues like camera, Audio volume, Audio recording, HW Video playback, screenshot. This is a experimental build and developer has promised that issues will be fixed very soon.
If you are still eager to get Jelly Bean then you can install this ROM on Transformer and give it a try. We have detailed the installation procedure below:
Warning/ Alert: Android Jelly Bean ROM mentioned here is not official build so proceed at your own risk. Installing custom ROM requires rooting your device, which voids warranty.
2. Back up all essential data including settings, emails, contacts, Apps, apps data, personal files. This process will reset the phone and delete all user data.
3. Enable USB debugging on your tablet. Tap on settings and then browse to developer options. Check the USB debug box.
Extract the fastboot folder from the zip file to the windows desktop.
This ROM is only applicable for Asus transformer model TF300T. Please do not try to flash on any other model. You will need to extract boot.img file from ROM zip file and copy it to fastboot folder.
How to Install Jelly Bean ROM on Asus Transformer TF300T:
Step 1: Download and transfer the ROM and Gapps zip file to root of the Tablet SD card.
Step 2: Now, switch off the tablet and boot into CWM recovery. Select “Wipe Cache/factory reset”. Confirm and go ahead.
Step 3: Now select “install zip from SD card” and then “choose zip from SD card”. Select the ROM file and then confirm to install. It will take few minutes.
Step 4: Once the installation finishes, follow the same process to install the Gapps zip.
step 5: If you have installed both files successfully then select “Power Off system” in the advanced menu.
Step 6: Now, hold power + Volume down button for few seconds till a message shows saying ” Press Volume up to enter RCK”. Do not press Volume up, wait for 5 more seconds and it will show another menu. Now quickly high light the USB icon using Volume down button. and then Volume button to activate fastboot mode. [you have just 10 seconds to select and process using Volume rocker] Connect Tablet to PC via data cable.
Step 7: On your PC, browse to the fastboot folder. Press shift and right click on the empty white space of explorer to bring up a context menu. select “open command window here”, execute the following commands in the CMD prompt.
fastboot devices [this command will show a string if device is connected and recognized by fastboot driver. it will provide a string like 0x0B02]
fastboot -i 0x0B02 flash boot boot.img [ flash boot.img]
fastboot -i 0x0B02 reboot [to reboot tablet into bootloader mode]
Step 6: Restart the tablet. It will take few minutes for the first boot as Jelly Bean will setup cache and other settings. You will see the new Jelly Bean boot screen and interface.
You have successfully instlled Jelly Bean on your Asus transformer TF300T. Now, you can restore your settings, apps etc.