Adding a key is possible, even EU cars.
Many tools can do this.
Obdstar, skp900, Lonsdor K518ISE
I added a h chip, to a Virgin Aygo immobox.
European, with skp900.
Method: you will need to dismantle dash.
The immobox is still between the heater and firewall.
And a secondhand, with master transponder is often the best choice!
OBDSTAR X300 DP program Toyota G chip All Keys Lost via OBD2
2. All keys lost, best tool, Tango!
All keys lost H smart key is possible, not regular H key.
Simply replace the immobox.
Buy a used immobox, with 1 master key.
Or a new virgin immobox.
There is no eeprom in the H type immobox, but something like uPD78F1812.
Also Obdstar DP pad can support H chip all keys lost (North American and Middle East area).
OBDSTAR X300 DP program Toyota G chip All Keys Lost via OBD2:
