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Old phones need Jimm as a JAR file. It is a Java ME / J2ME messenger installed like a regular Java application. Download jimm.jar to a computer or Android phone, then transfer it to the device by USB cable, Bluetooth, memory card, or infrared on very old models. On Nokia Series 40 or Series 60, the file usually opens from the file manager. On Sony Ericsson, the JAR can often be placed in the applications folder or installed through the file manager. On Siemens, the process depends on the exact model and firmware; sometimes a cable and vendor software are the easiest option. The phone must support Java applications and have working internet access. If you are searching for “Jimm for Nokia”, “Jimm for Siemens”, “jimm jar download”, “j2me messenger”, or “ICQ on a feature phone”, the setup is the same: a JAR client, a new account, and server icq.jimm.fun:5190. Without a real phone, you can run Jimm on Android through J2ME Loader.
For Nokia, Siemens, and Sony Ericsson, use USB cable, Bluetooth, memory card, or old vendor tools. After transfer, open the JAR from the file manager and confirm Java application installation.
The phone must support Java ME / J2ME, have enough memory, and have working internet access. If the network is not configured, the app may install but fail to connect.