Battery is dead when i bought it (here is the problem i got), i want to upgrade the cpu to A10-4600M (or A10-5750M if possible) but i'm afraid it's not compatible if the bios is not updated first. i'm currently at bios version 2.10 and the latest is 2.15. I tried this method but platforms.ini keep generating even though the folder and files inside it is read-only (i guess that explains read-only attribute do nothing with folder). Second method i tried is rename the file from BIOS 2.15.exe to BIOS 2.15.zip extract it, do that method again, and got the same result. Third method is open command prompt on that folder, type BIOS 2.15.exe /forceit, and again same result. Here's the file, in case someone can modify it.