We get expired certificate error in Nokia mobile phones like N97 or 5800 XpressMusic when an installed application gets expired. There are some solution on internet to this problem like changing the date in your mobile. Here is a very easy method to fix the expired certificate error in your Nokia N97 or 5800 or any other Nokia mobile.

Sign4ever is a very simple application. Copy the application with expired certificate in the same folder that Sign4ever (in the PC), execute Sign4everĀ and follow the instructions of the blue screen. Press any key to continue.
Created two files: a file .bak (backing of the application) and the implementation signed signed.sis. All applications signed are called signed.sis but you can change its name to the original. You just have to install signed.sis and the Expired Certification error will be fixed for next 20 years.
Get Sign4ever
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{ 3 comments… read them below or add one }
thanks for your help
but I follow all you are write above but not fix the problem and I try again & again no respons still give me a massege expired application
do you have other sulotion
best regurd
je veut drakkarios pour n97 32gb merci
Excellent trouble shooting. This Certificate eror problem was a big headache for me. Now with this solution completely solved.
Thanks an lot