Error Code 35: Invalid unlock key. Enter valid unlock key to unlock your license.
This error occurs when you enter an invalid or incorrect unlock key while unlocking your license.
1. Check your e-mail for the correct unlock key. Sometimes the activation e-mail may go to the spam folder.
2. The unlock key is case-sensitive. Copy the unlock key from the e-mail, and paste it ( Ctrl+ALt+V ) in the Unlock Key field.
If you are unable to access your e-mail,
1. Click F2: Get Unlock Key in the Unlock License screen.
2. Enter your Tally product serial number in the Unlock Key Service screen to view the unlock key.