yes
If you had keys with computer chip embedded,you will have to go back to a dealer,and have it checked&ordered..
When replacing the ECU in a 2001 Lexus IS300, you do not necessarily have to replace the keys. The new ECU can be programmed or flashed to recognize the existing keys. However, this process typically requires specialized equipment and knowledge, so it's advisable to have it done by a professional or at a dealership to ensure proper synchronization.
three keys to log on to the computer?
78 Keys
It depends on your notebook. My notebook has 80 keys, my friends notebook has 84 keys. A standard computer keyboard has 107 keys.
Locksmith
There are 107 keys in a full-sized computer keyboard.
The dealer can replace it using the VIN number.Acompetentlocksmith can make keys for the vehicle. Depending on the year of the Sequoia, if all keys are lost, the dealer will tell you that the computer must be replaced. This is not entirely true. Some locksmiths offer an immobilizer reset service which will generate keys for the existing computer. The dealer is not capable of providing this service, so they will often tell you that it can't be done and that the computer has to be replaced.
Replace. Keys are not the same
what do you do when the keys on the keyboard are pressed and the computer displays repeated characters
Well since you asked this question you must of used the keys on your laptop/computer! So you must of had the sense to count them...Total Keys = 84, but it depends on what computer you have....
There is one way to fix computer keys that don't work. Since computer stores don't sell individual keys, the only way is to buy a new whole keyboard that is a better version than the other ones so keys won't get broken.