I used Nokia PC Suite to backup all these four components instead of using Nokia 5800 inbuilt backup function, which doesn’t has an option to backup Notes (but I’m not sure the ALL settings will back up the Notes).
Remove the microSD memory card.
When the phone is powered on, don’t simply remove the memory card. Otherwise, the memory card content will likely corrupt.
For past few days, I’d been busy finding workable solution to the annoyed “expired certificate” problem that happen when I attempt to install SIS/SISX program files in Nokia 5800.
There are forums and blogs mentioned that the version 10 firmware is well known for this “expired certificate” bug and thus should upgrade to the latest firmware version 11.0.008.
However, my Nokia 5800 firmware is already at this latest version out of the box. So, what’s next?
i had purchased my new nokia 5800 set.and i was really disappointed when i saw all this crap.i was like what the heck man.what is the use of this set when i cant even update or install anything.i was really disappointed but then i got something interesting to fix this crap and here it is to share with you
But now, I’m pleased to tell you that I’ve fixed this “silly bug” at last try,
How to solve the Nokia 5800 “Expired Certificate” error that fails most SIS program files installation?
To be frank, I just don’t believe that one-line reply could be a real solution for me. But, I’ve ran out of ideas and found nothing newer than his suggestion.
So, I simply take it as last resource to try. Eventually, this simple trick does works magically, and I can’t wait to tell him how excited and grateful I am!
For reference, here is the solution in detail
(in case you’re not sure what additional steps I’d done on top of his one-line guide):
Backup all messages, notes, calendar entries, and contacts.
To remove the microSD card when the Nokia 5800 is switched on, press the power key (the button next to the power charging port), scroll down to locate and select Remove Memory Card, opt “Yes” as the “Removing memory card will close all open applications. Remove anyway?” message is displayed.
Shortly after, the “Remove Memory Card and press OK” message appears, and then the microSD is ready to be unplugged or removed from the dedicated slot.
Notes, both SIM card and microSD card slot are next to each other on the same side (another defect, personally), don’t be careless and end up corrupting the SIM card (if you happen remove SIM card instead of microSD card).
Format the Nokia 5800
Access to touch keypad and enter *#7370# secret code (not so secret, anyway) to restore phone settings to factory default (even the user data and files are deleted).
Next, you’re prompted to enter the Nokia phone lock code. The default is 12345, if this code hasn’t been changed by yourself or any one.
Then, the phone restarts and you’ve to select the country region (just select your own country from the list, in this case), followed by request to enter current date and time.
When the phone is ready, power it off again to re-insert the memory card (for highly safety measure, unless there are nothing important kept in the memory card, e.g. picture, music, documents, etc).
As the phone is switched on again with memory card inserted, the “preparing memory card” message appears.
Finally, I’m happy to be able install all my wanted Nokia 5800 programs and games without getting the “Expired Certificate” error message that says “Certificate may not yet be valid, is expired or phone’s date setting may be incorrect”









i´m very sorry to say that it didn´t work on my 5800.
can you please tell us what kind of error you are facing ?
thanx dude really works all programs which earlier shower ‘expired cirtificate contact supplier’ now works correctly…although they show error they can be installed and used..thanks a lot…can u send me a way to turn off camera sound for my 5800 on my email please?
my problem is same for
n97 is there any solution for ma cell
as i dont use any memory card
I had some apps that wouldn’t install either on my N97.
I also got the “certificate expired” notification.
Bij temporarily setting the date back a year I was able to install the software. After that you can set the date back.
always sign before installing , this is the only best solution to fix certificate error .
Instead of doing all this s***,you can just change the the date setting to the date in the application’s detail.The app will install without any error.After that you can rechange the date.The app will still run.
Enjoy.
Ashish is correct. You can save all that trouble just by changing the your date setting to a year back, e.g. change your date to 2009 or 2008. But usually 2009 year works most of the time. And then install your expired certificate sis file, you won’t get the “expired” certificate message anymore. After installing it, you can revert your date back to present. LOL!
I hv nokia 5235 phone and i m facing this certificate expired error problem when i install a software on my phone plz tell me how can i get rid of this problen
I hv used the back year date trick
Plz help me
send us your certificate & key we will create certificate for you .
i have the same problem when i’m installing some application to my Sony Ericsson Satio with Symbian S0V5. . .Can you help?
u said that by changing the date of the application the expired certicate gets updated..but i am not able to change the date…can u please explain how to change the date…??
the only things that u must to do is to change the date of your phone.(go to setting-phone-date and time).and let u install those application.those certificate error will authomatically fixed..then after application installed..set your phone on it’s real date..the applcation will still working..do the same way in installing games,themes,widget..etc..
Please i need a lite flash for my nokia 5250 rm that i can watch videos
Can somebody help me to get out of certificate error on my nokia c6.. any of the above methods are not wrking.
sign it urself going to site of opda… and download free signer get ur cer and key from opda by registering.. use free signer and browse the key and cer in it.. then u can sign ur applications urself
always sign before installing , this is the only best solution to fix certificate error . plz teal me ans i am witing for your answer
sign unsigned apps before installing or hack your phone with hellox tool ( your phone warrenty will be removed but you can install any app unsigned as well )
Fucker Formatted his mem-card.lolz just hack the fucking set ot sign the fucking sis.