Nokia phone certificate installing

By default Nokia phones come out with some certicate like Verisign, Thawte, Nokia, Geotrust, GlobalSign etc. You can add more certificate even not using any PC help. Just download a zip file from this link and extract it with java MIDlet like BlueFTP, MiniCommander or any other. Now you keep the install_certificate.html (inside archive) and the certificate (.cer file) with the name certificate.cer into a same folder. Now open the install_certificate.html file click "install" to save it to your certificate list.

How to trick with mobile maximum jar size

I think Nokia is best mobile device for managing file. Almost all nokia file manager (Gallery) shows file extention by default. On most phone there is no option to stop it. And its a nice clue for this job. Application programmers also very fond of Nokia, as they often release programs specialy for Nokia. Nokia provides JVM (Java Virtual Matchine) that launches J2ME MIDlets to expand handsets capblity by installing new programs. On s40 series Nokia security guard checks out the phone's cablity by performing some action. Just as hiding copyright protected files copy, delete or send option. It also bounds action on java programs. It limits the application size according to handsets capablity to load. Some phone does not start downloading jar or jad (size mentioned of the jar) file or if even downloads, after that it shows a capablity error message if the file exceeds maximum jar size that does not accepts your phone. I found that this restriction can be easily ignored. For that don't download the MIDlet using phones default browser. Download it with other file downloader MIDlet like UC WEB, DM Mobile or Thor's Mobiget j2me MIDlet. Just ensure that the file name has no "." sing even not ".jar". If there is any "." symbol remove it with other programs like FileExplorer, BlueFTP, MiniCommander or any file manager programs. You do it because the phone detects the last "." symbol as the file extentions "." symbol and you must ensure that the file has no extention. Now use your phones file browser (Gallery) and set the cursor on it and rename it with like "filename.jar". Now its done. Now wonderly see that the file has become a j2me MIDlet with an icon. Now you can run any java MIDlet of any size exceeding the default maximum jar size.