Sorry for this delay. During the pass years, we are so busy. But finally we had got the updated firmware for Revo K101. This firmware is for solving the saving issue while turning off the device and the sav file lost. You guys can download this new firmware here: www.k1gbasp.com/download/revo-k101-fw-fix-sav.zip Please read the file- "readme " if you do not know how to update the firmware. Again, we repeat the steps on how to flash your device- the words in red color are translated by us. It is easy to do that. PS: One tips for keeping the sav file well: Press the Power OFF button for 1-2 seconds- do not let go of your hands till the Green LED indicator off. This will give the TF card enough time to save the files. In this way, you will not lose the save files. 固件刷机升级方法：(How to flash the console)  下载刷机固件文件 K_FW.bin 到 TF/MacroSD 卡的根目录，将TF卡插进K-Card Dowload the firmware file- K_FW.bin. Install this file to the root direction of your TF/MacroSD card. Insert the TF card into the K-card.  按住 SELECT 键开机，将出现如下提示： (Press both the button- "Select" and "Turn on" at the same time. And the below information will be showed New firmware loaded. B: Abort & test firmware START: Update firmware to SPI  按 START 键就开始刷机，固件被写进主板中的SPI-Flash芯片中，提示如下： (Press the button" Start " and the you are in the process of flashing the device. The below information will be showed: ) Updating SPI... K_FW.BIN  OK后，关掉电源重新开机就完成固件升级 Updating SPI... K_FW.BIN OK Please turn off the power.