MTK6250 Bluetooth 1.54" LCD Watch Firmware installation. How to flash firmware on RKM M3, Podoor MI W2 or PW305 watches

This is a simple tutorial on how to flash firmware on RKM M3, Podoor MI W2 or PW305 Linux watches.

1. First, you'll have to download the firmware archive 'MTK6250 Bluetooth 1.54 LCD Watch firmware' from here, here or here.

2. Install driver for the smart watch. Extract the archive and search 'USB_Driver_exe_v1.1032.1' driver. Run 'InstallDriver.exe' as Admin and install the drivers. I have Windows 8.1 Pro x64 and it worked with no problem at all.

3. Open “download” folder, double click “MultiPortFlashDownloadProject, click up and left corner 'File---Open Download Agent File', select 'download folder----MTK_AllInOne_DA.bin', and then click “open”. Next you have to choose the firmware version which you want to flash (between W2-MI_TR_V2_5 and V2_7_podoor), click 'Image Folder' and then go to where you store the firmware. After finishing above steps, click 'Start All' (down and right corner), power off your watch, and then connect watch to computer via USB data cable. During burning time, the data will keep updating, it is normal, don’t worry. (red line, yellow line, blue line and finally the green line). When green color line is displayed it means that the flashing was successful.

4. Next operation is needed once upgrade successfully，

Go to Dialer option (i.e. dial phone number), input *20# （long press digit 7 to input *,long press 9 to input #）. Click Device --> Click Set UART --> Click UART setting --> In the first line of the USB port 2, click the right arrow keys, showed none, then click on the upper right corner the three point(stands for save settings), watch will shut down after 3 seconds. Boot again can be used normally.
5. Install the provided 'SmartWatch2_20.apk' on the Android devices you want to pair with your smart watch.

For more details please watch the video below.