I've seen a lot of posts on this, but haven't been able to solve my problem so far.
The application is working on an N95. I needed to run it on an E51 and so used the tool to add new IME number and got a new cer file from the website.
On installation the phone then came back with the 'Constrained by the certificate' message. I have checked the following according to other posts
1. SymbianA certificate is present on phone
2. IME number matches what I have put into web site
3. Date Time is correct and not in US format
4. The latest sis file works on another phone so I assume this proves I am not using functions not available on the certificate.
My only uncertainty - I use GPS functions (as this is on the N95). They are not going to be used on the E51 (it doesn't have GPS), but the functionality is still in the program. Can this produce the message I am getting?