To sign applications for Nokia N97 we need to get a certificate and Key to sign applications for Nokia N97 in OPDA. There are many ways of signing applications in our Nokia N97, but this i felt the simpler and more practice.
After having obtained the certificate and the Key turn to sign the applications for which the first will download this package.
Install this application

Now connect the Nokia N97 in transfer of data via the USB cable, for example, and copy on the phone the certificate and the Key before obtained in the unity E:. Copy the application that you want sign, in this case, for example, copy this that is unsigned.

Now we are going to our telephone and open the application before installed signis, that will appear as “Mobile Signer”.

Fill in the fields with the application to sign and the certificate and the key before obtained, ok?

In options click to save and then, again in options, click to Sign.

Now is already signed the application, appear two applications in the file manager, go to the file manager.
In this case choose the tab where we recorded the application (E:)

We see that appears twice the file, signed and unsigned. Delete the file is not signed (.sis) and execute the signed (.sisx).
We have already installed the application signed in our Nokia N97. Now you can delete files of the applications signed (.sisx)

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Hi,
Just to ask if anyone knows this..
Iv tried to execute te first file but it installs, but wont run im only on step one ie: 1.Download “ThinkChange.nUn*****.x.Unsigned
Any advice please.
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lets c
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HI. I tried signing through the method given above but when I write key and certificate and sign then it comes error load sis file.
i tried changing the name prefixed by E: but still same message is coming – error loading sis file.
anyone help? what to do??
thanks in advance
You Write wrong along the route or the name of the file. writes also the extension .sis
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hello, I have signed the iSMS app and all completed but when I go to install it says protected application from an untrusted supplier. can you help?
help !
i have got my key and my cert but i have a problem with signsis .
how fill in sis file , key file and cert file ?
when i select sis file my phone open the key pad . do i have to type manually the sis file, key file etc .. ?
what happens for you when you click on sis file ? does it ask you to indicate the way to your appli ?
hi sir i want ur fingerprint reader software key……….
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v good
i am unable to download cert and key?
very good
This doesn’t take too long if your patient… The only long thing is waiting for the cert and key to be approved. 6hrs for me but well worth the wait!
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I have done everything said on this tutorial though when i try to sign this FM.sis (Fake Messager) it says Error Load Key File. Would you know how to fix this? Thanks.
lels chinese just take ur info for their fake phones and u believe of this sh1t.. try give ur bank account and password maybe it help too.. stu p1ds
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when i make sign there is message said error loading sis file…..i am writing the name of file very carefully i wrote .sis and the extension….please what can i do for this problem…
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just dunlod signsis tool(exe) from opda n run on ur pc.
Its very simple. Just go to this link.
http://adf.ly/1BTE6
Wait for a while. Click skip add. Its a mediafire link. Download ‘sign4ever’ application to your PC. Install it. Open your unsigned apps/games with this. You will see 4/5 files. Copy only that file- named ‘signed.sis’ to your mobile. Install it. Thats it. You are all done
Nice application