Boot verification Failed - LG G3 D855 (16GB) - G3 Q&A, Help & Troubleshooting

Hii, i have LG G3 D855 16GB and after i trying to Update android version the cell phone went out...
now i try to power on and he said: "Boot verification Failed"
and after that a red and blue light flickers at me...
and my lg dont get it Download Mode.
what i can do please ?

You have a hardbrick, try this
https://open-freax.fr/guide-unbrick-your-lg-g3/

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Hello,
On my D855 I'm stuck with the LG screen.
I access the download mode, I wanted lg flash with Flash tool but when launching the flash, I get the error message "Download Fail! "And" Device model is different. "Indeed the phone appears in D855RE.
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sentenza700 said:
Hello,
On my D855 I'm stuck with the LG screen.
I access the download mode, I wanted lg flash with Flash tool but when launching the flash, I get the error message "Download Fail! "And" Device model is different. "Indeed the phone appears in D855RE.
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Click to expand...
Click to collapse
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sentenza700 said:
Hello,
On my D855 I'm stuck with the LG screen.
I access the download mode, I wanted lg flash with Flash tool but when launching the flash, I get the error message "Download Fail! "And" Device model is different. "Indeed the phone appears in D855RE.
What to do ???
Click to expand...
Click to collapse
Search for cross dll you will get the point what you need
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Solution ?
sentenza700 said:
Hello,
On my D855 I'm stuck with the LG screen.
I access the download mode, I wanted lg flash with Flash tool but when launching the flash, I get the error message "Download Fail! "And" Device model is different. "Indeed the phone appears in D855RE.
What to do ???
Click to expand...
Click to collapse
?? My Lg g3 is d855re no signal, help!!!

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