Letv (LeEco) LE 1s X507 Soft-Bricked

[Piyush Aggarwal1]

Used TWRP recovery and wiped EVERYTHING (including SYSTEM and INTERNAL MEMORY).
ADB does not identify the phone , nor FASTBOOT IDs it.
Tried all kinds of drivers (MEDIATEK , GOOGLE, UNIVERSAL,NAKED) . None works for me.
The Letv bootscreen stays up , if left on Power ON (not animation, the image before that).
PS: I Can access RECOVERY

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