I have downloaded comodo certificate using mozilla and it was saved in .p12 format. I have followed their tutorial which is for pfx format https://support.comodo.com/uploaded/...ateforJava.pdf to obtain keystore. I imported this keystore to wtk for cldc and signed the midlet after that. However I was unable to install app on Nokia E51 & Nokia 7610. On E51 I got certificate error & on nokia 7610 I got security error. Can someone please explain me what exactly the problem is. Am i following correct approach to obtain keystore from .p12 file, or there is another procedure for .p12 file to obatin keystore? Or nokia phones are not compatable with comodo signed app?