[EjazATF]

QMobile A290
MT6572

Power on/off problem and if get power on then hang on QMOBILE LOGO solved via scatter flashing with merapi tool

 Phone must be off with battery inside. 
 Please insert USB cable now...
 Detected : MediaTek PreLoader USB VCOM (Android) (COM4)
 Phone detected...Please wait
 Sending DA agent, please wait...
 BBCHIP MT6572_S00
 EMMC: (29Gb+4096Mb) HYNIX 0x483447316404 
 EMMC FW VERSION: 05:00:00:00:00:00:00:00
 BOOT STYLE : EMMC BOOT
 Detecting high speed port, wait......
 If driver not installed, install high speed port driver.
 Detected : MediaTek DA USB VCOM (Android) (COM17)
 Starting flash.
 Send preloader...
 Download firmware to flash now...
 MBR checksum is executing ...
 EBR1 checksum is executing ...
 PRO_INFO checksum is executing ...
 NVRAM checksum is executing ...
 PROTECT_F checksum is executing ...
 PROTECT_S checksum is executing ...
 UBOOT checksum is executing ...
 BOOTIMG checksum is executing ...
 RECOVERY checksum is executing ...
 SEC_RO checksum is executing ...
 MISC checksum is executing ...
 LOGO checksum is executing ...
 ANDROID checksum is executing ...
 CACHE checksum is executing ...
 USRDATA checksum is executing ...
 After flash this firmware need to perform some aditional steps
 1.Reinsert battery, keep VOL- and power on untill phone will come in factory mode
 2.Select line EMMC, and after press home button.
 3.Wait untill phone will restart and will stuck on logo(leave for 1 min in this stage).
 4.If phone not power on, reinsert battery and perform direct unlock.
 If repair fail, please contact us or report in forum to provide help.
 Wait untill phone will start charging.
 All done.