bricked smartwatch QW09

hello, i just bought qw09 watch

Tenfifteen QW09 Android 4.4 1.54 inch 3G Smartwatch Phone MTK6572 1.2GHz Dual Core 512MB RAM 4GB ROM Pedometer Bluetooth 4.0

Parameters:

Display: 1.54 inch screen

CPU: MTK6572 1.2GHz Dual Core

System: Android 4.4

RAM+ROM: 512MB + 4GB

Band Length: 8 x 12.2cm

Band Wide: 2.1cm

Bluetooth: V4.0

Camera: 2.0MP

SIM type: Single SIM (Nano SIM)

Feature: Message, Calculator, Sound Recorder, Pedometer

Network:

GSM: 850/900/1800/1900MHz

i root it and use roots right to uninstall some system app, it works well till i do a factory reset, the watch keep stucking at logo screen and wont boot
anyone can help me? im trying to flash it by using flash tool but i cant do it because i always see error (unsupported DA, ect…)
thank you

First : we don’t support square watches here…
Second : Yes flash is the right thing to do, probably your FW is not the right one, that’s why you have errors when trying to flash.