First.... let me tell you that I am trying to re-install the latest software update which I already have on my E52.
You must have knowledge when you try to update software via Nokia Software Updater (NSU) that if there is no newer software available for your device then NSU gives you the option to re-install the latest software that you already have in your device...... Right?
I've tried it a long time ago on my N73 as re-installing the software that I already had on the phone. And I remember that it took good time to download full software and re-install fully on my N73. I mentioned that it took good time to download full software but it's when I have no cache of the older updates. Otherwise I remember that I also have tried re-installing the latest software when the download part was skipped as the NSU found the software already in cache and used that instead. Also that time it re-installed the software fully from scratch.
And now, after that long time, I am trying to re-install the software what I already have on E52. But it's not working like that I've used to. Last time on E52 when I upgraded to the latest version of software, NSU upgraded it successfully, exactly like taking time to download the hundreds of MBs and then around a couple of minutes to install on E52. But now after a couple of weeks for some reason I want to re-install that same software again on E52 as there is no newer software available for the device. And now NSU is not performing like what I suppose it to do. I don't have cache of the earlier download which NSU downloaded last time. Even then, when I am trying to update the software again as re-installing it via NSU, it doesn't download the software again and just starts installing the software. But it also finishes installing the software within a couple of seconds, may be 10 seconds or 15 at most. NSU finishes the job with a successful message.
But on the phone, No Change is Made. Every thing is intact.