Nokia lumia 520 boot issue (HowTo : Mohterboard Diactostics?)

[Zet12345]

I recently got a Nokia Lumia 520 and the only thing that does when it boots it prints "Unable to find a boot-able option .Press any key to shut down."

BUT it only boot when I plug it in a power source it does not power from the battery
even if I leave it on the source to charge it does not charge

I've tried all the soft-hard reset
It does not recognized by the computer "in device manager says : NOMIA BOOTMGR"

It is propably theat something on the motherboard is broken
DO anybody knows how to run a diagnostic on the motherboard?
Most likely its the EMMC(the memory of the smartphone) but how can I replace it ?

 

[Paul NZ]

Get the recovery tool. Download / install it. Connect the phone.

Only prob is if the battery doesnt work you may have probs (it maybe dead)

 

[Zet12345]

If you are talking about Windows phone recovery tool it does not recognize it

 

[Paul NZ]

Try another USB cable. I did get the same message but when I changed the cable it picked it up

 

[Zet12345]

I changed 3 usb cables still no windows or nokia flash or recovery software . I even tried to use THOR2.0 from the command line with direct commands to pass the RM-914 to the EMMC
with WPR I'm getting THOR2.0 stopped working after a while

I've found a motherboard replacement but will this fix my problem , will this EMMC at least be recognized by the Windows phone recoery

 

[Paul NZ]

Should do, if thats the prob