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T4D Lite has been upgraded!
You now require a free Trimble User Account to use T4D Lite.

If you already have a Trimble Account under the same email address as the one you used to register on T4D Lite, then you can just use it to sign into T4D Lite right away.

You can access your previous subscription by creating a Trimble User Account with the same email address as your existing subscription.

You will be directed to the Trimble Central Accounts site. Follow the instructions there to register a Trimble User Account.

Once you have created a Trimble User Account, please return to T4D Lite.