Here OBDSTAR overseas engineers feedback:
FYI, Toyota G chip all keys lost was already updated .
OBDSTAR X300 DP program Toyota G chip All Keys Lost via OBD2
OBDSTAR X300 Pro3 and X300 DP program Toyota H chip All Keys Lost via OBD2
Now, update OBDSTAR X300 Pro3 or OBDSTAR X300DP to enjoy the new update.
Part 1: OBDSTAR X300 DP update instruction
Step1. Connect WIFI as follows
Step 2. Begin to update your device
The update will be finished once all the vehicles have been 100% updated.
Part 2: OBDSTAR X300 Pro3 Update instruction
1. Remove the TF card from your device.
2. Insert your TF card into computer.
3. Format your TF card and ensure it is empty.
Login our website: http://member.obdstar.com/MemberEn/Register.html and click “A Key upgrade”
Download and install the “One Key upgrade”. You will see this software.
Open the “one key upgrade”. Input your username and password. Then select “End User” and click “Log in”.
Input your S/N.
Select all and click “Upgrade”
Open your TF card. You will see these files.