vivo 1814 samsung icon problem

i have vivo 1814 problem was user lock forgot can not be reset.

I try vivo y81, y83, y83pro format tool after wipe phone reset but one samsung chines icon on screen when click on it goes engineering mode.

what is problem.

Attached Images

• 20190127_215010.jpg (124.9 KB)
• 20190127_215026.jpg (114.0 KB)

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