Excuse me. I have a Tecno Dual Sim Android ''version 2.3.5'' with ''Kernel 220.127.116.11-per''. Cpu 800 mhzn Ram 150Mb. my smarth run often too slow because of some factory apps. I've tried to root with one click program but no success. I've heared that version 4.1 is smoothed and stabilisated. I've a recovery tool that my phone come with. But the upgrade have been too unsuccessfull (by downloading a pack for "from 4.0 to 4.1" for samsung...).
Please help me