Was-lx1a big problem
 

I have WAS-LX1A i flash with this firmware to change demo :

Warsaw-L01A_C432B179b_Firmware_Italy_Switzerland_Portugal _Netherlands_Germany_Nonspecific_Android7.0_EMUI5. 1

but it das not finish flashing its not detcted in upgrad mode and the phone booting up and error when factory reset in recovery after i change OMI

and flash with :

Warsaw-TM001055_Board_software_general_Android_7.0_EMUI_5 .1_05022DUU

Warsaw-L01A_C432B179b_Firmware_Italy_Switzerland_Portugal _Netherlands_Germany_Nonspecific_Android7.0_EMUI5. 1

update_WAS-L01A_C432B179b_hw_eu


but the same its not detcted in upgrade mode , any solution

Did you repair model/vendro country before trying to debrand?
Have you tried to flash only board software in advanced mode on dc-phoenix?
Have you tried to use update oeminfo tab and load bootloader according to phone's processor + oeminfo file and then flash full stock rom matching that oeminfo data that you wrote in?

I had try the 2 first suggestion but same problem , i wanna try the 3rd but there no bootloader file for was-lx1a kirin658

You must manually connect your phone to the upgrade mode, 1'st disconnect the USB cable connection from your phone, make sure the phone is switched off / power off.

Now press & hold bot of [Vol+ & Vol-] button together inset the USB cable, just wait for device in upgrade mode below the video.

after you can flow the http://forum.gsmhosting.com/vbb/13499923-post2.html

I had try that but not working