ok. do this, bearing in mind it will wipe your phone and data, and it can be risky flashing roms but this is official rom. Make sure the phone is charged. also make sure your phone is the I9020T (or gt9020) you can find out by taking the batt cover off. if so proceed:
download this:
http://android.clients.google.com/packages/ota/google_crespo/ZD3PyN0t.zip
Then, rename it update.zip
Next, connect your phone to the computer with your USB Data Cable.
Copy the update.zip file to the root of your SD card (phone memory).
After, you have copied the file, disconnect your phone to your computer and turn it off.
Go to the bootloader by pressing and holding the volume up button and the power button at the same time.
Once your in the bootloader, select Recovery. To navigate, press the volume up and down and to select, press the power button.
You should see a warning Android logo after selecting the recovery. When you see the warning logo, press the volume up and power button again to go to the Menu.
From the menu, select “Apply update from /sdcard”, and choose update.zip from the list.
Your phone will then update itself.
Once finished, go back and select reboot.
This should sort your issues out. also try turning auto rotate off.
Changing kernels is a different matter all together and involves much more effort. Suggest the above first.
download this:
http://android.clients.google.com/packages/ota/google_crespo/ZD3PyN0t.zip
Then, rename it update.zip
Next, connect your phone to the computer with your USB Data Cable.
Copy the update.zip file to the root of your SD card (phone memory).
After, you have copied the file, disconnect your phone to your computer and turn it off.
Go to the bootloader by pressing and holding the volume up button and the power button at the same time.
Once your in the bootloader, select Recovery. To navigate, press the volume up and down and to select, press the power button.
You should see a warning Android logo after selecting the recovery. When you see the warning logo, press the volume up and power button again to go to the Menu.
From the menu, select “Apply update from /sdcard”, and choose update.zip from the list.
Your phone will then update itself.
Once finished, go back and select reboot.
This should sort your issues out. also try turning auto rotate off.
Changing kernels is a different matter all together and involves much more effort. Suggest the above first.