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How to fix Certificate Error ?
If you get certificate error when attempting to install 3rd party software on your S60 3rd Edition smartphone, it means that you haven’t enabled installation of unsigned SIS files. Go to Tools -> App. Manager, choose Options -> Settings and set Software installation to All and Online certif. check to Off.


April 4th, 2009 at 1:18 pm
i have a nokia 5800,still getting “certificate error ” even if i set the year back i still get this message please help what else can i do,withought having to restore factory settings?? surely there is a way?
regards
December 14th, 2009 at 9:29 am
i have a nokia 5530XpressMusic,still getting “certificate error
January 14th, 2010 at 2:21 pm
Same here: I have a Samsung i8910 HD running Symbian S60 5th, and I’m trying to install the TuneWiki application (I just downloaded “tunewiki.sis” from tunewiki.com a couple of minutes ago).
I have also tried to set the phone clock back to last year (this is suggested in some discussion forum in postings from 2007), but no avail.
Any hints on how to get by this error message?
June 1st, 2010 at 7:11 am
Yeah…guys…the Application Manager Options (the 2 settings: All and
Off) do NOT work in regard to the Certificate Error problem. I’ve seen
this solution all over the Internet but it doesn’t work (and to tell you
the truth, the phone comes with those settings by default). So stop putting
this response on the forums because IT DOESN’T WORK.
P.S. I have a Nokia 5230
June 15th, 2010 at 4:03 pm
Even though we changed date ….and setttings .. it showing the error ???
June 15th, 2010 at 4:04 pm
My Set is Nokia 5530 Xpress MUsic
June 15th, 2010 at 4:06 pm
Previously there was no problem ..for instaling …. but when i deleted the the
some themes and tried them again it is showing ..error expired certificate ???
July 3rd, 2010 at 8:42 pm
This solution doesnt work for Nokia X6 either
December 29th, 2010 at 9:04 am
hai hi
this is gaurang parmar
i want to use this software named SaySms
for my nokia E72 mobile phone
can u give me some advie how to install this software fore
my E72 mobile?