hi @amirul, thanks for testing - i think the performance difference to the mx10 might be due to cheaper components maybe - i have now as a last round added the ddr memory timing from the t9-android dtb as well - not sure if it makes any significant difference ... it is interesting that the 1.4 and 1.5 ghz speeds do not work for you - on my box (t9 too) both work well (at least in normal usage), but the box heats up very fast then - maybe also different components used even within the same line o