Galaxy Nexus I9250 4.2.1 Downgrade & unlock[Reference]
TOOLS NEEDED OCTOPUS BOX[/FONT]
first unlock I9250 version 4.2.1 failed[/COLOR]

kaya search ako pero wala me mahanap na solution kaya deside ako na downgrade to firmware 4.0.1 DL nyo nalang po firmware sa Octopus support.
I9250 LUX I9250XWKK9.oct
Write Firmware
1. Put phone into Download mode by pressing volume down + Power button
2. Connect phone to PC via Micro USB cable;
3. Install required driver
4. Select firmware file
5. Click "Write firmware" button
6. Follow software instructions (prompts)





Successfull flashing na sa firmware na 4.0.1
PROCEED TO UNLOCK
1. Put phone in Bootloader mode by pressing "volume up"+"volume down"+"Power button
2. Connect phone in bootloader mode to PC via Micro USB cable
3. Install necessary driver
4. Click "Unlock" button
5. Follow software instructions (prompts)




Ayus nakuha din sa tyaga, sana makatulong sa tulad kung baguhan lang.
NOTE: pag Octopus ang gamit mo no need to root auto unlock bootloader na po pag bootload
Galaxy Nexus I9250 4.2.1 Downgrade & unlock Done![/FONT]
TOOLS NEEDED OCTOPUS BOX[/FONT]
first unlock I9250 version 4.2.1 failed[/COLOR]

kaya search ako pero wala me mahanap na solution kaya deside ako na downgrade to firmware 4.0.1 DL nyo nalang po firmware sa Octopus support.
I9250 LUX I9250XWKK9.oct
Write Firmware
1. Put phone into Download mode by pressing volume down + Power button
2. Connect phone to PC via Micro USB cable;
3. Install required driver
4. Select firmware file
5. Click "Write firmware" button
6. Follow software instructions (prompts)





Successfull flashing na sa firmware na 4.0.1
PROCEED TO UNLOCK
1. Put phone in Bootloader mode by pressing "volume up"+"volume down"+"Power button
2. Connect phone in bootloader mode to PC via Micro USB cable
3. Install necessary driver
4. Click "Unlock" button
5. Follow software instructions (prompts)




Ayus nakuha din sa tyaga, sana makatulong sa tulad kung baguhan lang.
NOTE: pag Octopus ang gamit mo no need to root auto unlock bootloader na po pag bootload