Xoom-ing into ICS

July 14, 2012

I got really impatient due to non-availability of ICS/JB for my Motorola Xoom MZ601. So, I decided to hack and switch to MZ604 firmware for GED Xoom to receive OTA update of ICS build. I had to compromise with non-working 3G, but it is okay for time-being …(till my next hack).

Here is the quick howto :

  1. Make sure to have adequate (full) charge in your Xoom.
  2. Download the official Build HWI69 for US Retail from Motorola device software page.
  3. Switch to fastboot mode by holding “vol down” + “power” buttons (ref).
  4. Connect the Xoom with Computer (Linux/Windows/Mac – assuming that you have the Android tools/drivers installed).
  5. Run following commends from terminal (you may void your warranty)
    • fastboot oem unlock
    • Following on-screen instructions.
    • fastboot reboot
  6. Once rebooted, switch back to bootloader
    • adb reboot bootloader
    • Wait for the reboot and switch to fastboot mode
    • From the terminal change to MZ604 firmware directory where you unzipped official Build HWI69 for US Retail firmware.
    • cd /home/experiments/MZ604_HWI69/
    • fastboot flash boot boot.img
    • fastboot flash system system.img
    • fastboot flash recovery recovery.img
    • fastboot flash userdata userdata.img
    • fastboot erase cache
    • fastboot reboot
  7. Once rebooted, you will get HW169 firmware loaded into Xoom.
  8. Connect to WiFi and do system update (OTA process).
  9. You should get automatic OTA which will upgrade firmwares in sequence :
    • HMJ37 -> HTJ85B -> HTK55D -> HTK75D -> IML77
  10. Once you have IML77, you are into ICS (android ice cream sandwich 4.0)
  11. Finally, a factory is not a bad thing to do.


Did I forgot to say that I am not responsible for any damages caused by using above instructions?



January 14, 2012

I have finally decided to retire my Kindle2 and buy a Tablet. The timing could not have been better as online retailers started to sell Motorola Xoom in discounted price. So it’s Xoom-ing time.

I am yet to root and hack into the device, till then, let me enjoy Motorola’s superior design, power of Tegra2 and openness of Android.

Since I purchased my Samsung Galaxy Spica (aka GT-I5700 Android phone) I wanted to put Android 2.1 Eclair. Yesterday I managed to find sometime and flashed my phone with (so called) I5700’s India firmware (ie: I570EDDJC5).

Here is the howto ( I am not responsible if anyone’s phone becomes brick in this process ) –

  1. Install Samsung New PC Studio in Windows XP/Vista/7 computer so that all required drivers will be installed & available. (don’t forget to reboot after the installation)
  2. Connect Samsung Galaxy Spica phone to the Windows PC using USB cable which came in the box.
  3. Check whether all the drivers are properly recognized from Device Manager.
  4. Close Samsung New PC Studio and disconnect the phone.
  5. Switch off the phone and remove SIM & SD card (if any).
  6. Start the Odin-v4.03 (included in the firmware pack) multi-downloader in PC
  7. Hold Vol Down + Camera + Call Off buttons to get into Download screen and connect the phone to PC using USB cable.
  8. The phone should be detected in COM3 port (USB serial) of Odin.
  9. Check “One Package” option; add spica_jc3.ops (included in the firmware pack) and firmware package I570EDDJC5.tar (included in the firmware pack).
  10. Start flashing. Once the flashing is completed the phone will automatically reboot. (for me the flashing, auto rebooting took approximately 6mins …. if it fails, reboot the phone/PC and try again)
  11. Once you get your Eclair screen, disconnect the USB cable.

Few interesting links –


May 27, 2009

We have started to release tons of source codes to the community. Am I taking the right decision? Time will tell …..