lumia 620 flash error

i got lumia 620 no imei in normal mode but it boot mode can se imei with other tool then i was flash with different product id flash file, then phone stuck in operator logo, then i was use
Windows Device Recovery Tool and flashed with original product code firmware in online, then phone stuck in nokia logo.
then again i was try with other tool tick nvi reset opttion and with downloaded file with original product code on back side sticker.
but still stuck nokia logo (was manually hard reset also)
now i was try flash with ATF but its not detect with atf, but with Windows Device Recovery Tool and other toll i can fully flash without problemwhat is wrong????
pls help me recover this phone.

Windows Phone 8/8.1/10 Flashing Started
Loading Flash Files Please Wait…


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Windows Phone 8/8.1/10 Lumia Flasher
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If the Phone is ALIVE
1. Power On the Phone and Connect it to the USB Port

If the Phone is DEAD
1. Connect Phone to the USB Port
2. Press and Hold the VOLUME DOWN and POWER Buttons
3. Wait until the Phone Vibrates Shortly…
4. Stop Pressing the Buttons…

If the Phone is DEAD BOOT
1. Connect Phone to the USB Port
2. Install Correct Drivers:
"Nokia Emergency Connectivity" Located at:

C:\AdvanceBox Turbo Flasher\Driver\NOKIA_X2_USB_DRIVERS\
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ERROR: NON Windows 8/8.1 Phone detected!
ERROR: Flashing Failed!


  • error non windows 8/8 1 phone detected