[Mumang]

Вот вам Hardreset для него.

HardReset

Back up all your data to your PC using the Palm Tungsten Hot Sync function along with your data-sync cable. Save any files and folders you would like to restore after the hard-reset process is completed.
Step 2

Press and hold down the power button. Continue to hold the power button.
Step 3

Remove your stylus and press the reset button on the bottom part of your Tungsten T5 and then release it immediately after pressing the button.
Step 4

Wait for the "Palm Powered" logo to appear on the screen and then release the power button.
Step 5

Wait for the message that warns you about deleting all your data. When that message appears, press the up key on your five-way directional pad. Wait for the device to hard-reset itself.
Step 6

Open your "custom menu" and then click on the Hot Sync Manager icon in the bottom right corner of the screen. The picture to the left of this step displays the icon. Follow the steps to resync your saved applications and other documents to your device. You have now performed a hard reset with a system restore.

Насчёт русификации попробуйте RusHack во вложении.
З.Ы. При HardReset затирается карта памяти - аккуратней.