There is no Problem, you can easily flash your I-Mate JAMin with the last update rom-arabic JAMin_Arabic_213923_2139126_022021_ship 55MB from their site
www.clubimate.com. just you need to register your self and to provide your IMEI No..
After finishing the download just follow the instruction step by step then your JAMin will be freshly updated with Arabic enabled rom , knowing that doing this will remove all you data stord in your phone ,so make sure to synchronize before proceeding with update , after finalizing the update your telephone will restart and will be like the 1st time you buy the phone , proceed with installing the new OS and enjoy
Regards
Blue Blood