Signing Symbian Applications

To sign files on new firmwares You need.
1. Certificate with your IMEI. Go tohttp://cer.s603rd.cn/enter Your IMEI in box and verif. code, shown on right, and push button (it's submit) It takes one day to receive. on next day go tohttp://cer.s603rd.cn/again and enter same info, You will be redirected to links, just click on first(look below in red circle), it will download Yourcert. and save it to phone.
2. Download s60SignSis_V1.0.SIS install and choose Your received cert.. Now You can easy sign files.
Tested on my e90 w300.34.84 work fine!
Sorry for my English.
Good Luck !!!
Note: For member who don't have key file but Got Cert from this site, I am attaching Key file now, let me know if doesn't work.
PS: key file is only to be used for Cert from above site.

Necessary Components
S60 Signer v1.01
sign sis Key for signing