Help! Bricked phone! No bootloop, no MIUI logo or fastboot - Xiaomi Redmi Note 3 Questions & Answers

After restoring a TWRP backup, my phone did not boot. Whenever I connect it to a computer the notification light blinks red and Windows 64Bits does not list it the device manager. I have tried both EDL methods, pressing vol + and - and connecting to USB or Testpoint method. I don't see the MIUI logo and I cannot even enter fastboot mode. The only method that gives a "sign" is the testpoint but it lists my phone as: Unknown USB device (Device descriptor request failed)
Any ideas???
Thank you!

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I think you have problem with windows, I recommended you to install windows 10 pro x64 and you have no problem with drivers. Have you disabled driver signature verification ? But you try this bellow.
First have you unlocked bootloader ? If bootloader unlocked you can boot phone into fastboot & flash with fastboot. Shutdown phone by hold power button for 10 seconds and fast hold volume down then push usb cable into phone. If first method not working, try reconnect battery and usb cable then hold volume down and connect usb to phone. On phone appear you have entered in fastboot mode. Use fastboot rom to flash via fastboot. Other method is try to disconnect battery and usb cable and connect again, try hold volume up and down and connect usb, also try test point method . If not working it's problem with windows and drivers, what version of windows are you using ? Take care with test point pin's to not damage.

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arnes_king said:
I think you have problem with windows, I recommended you to install windows 10 pro x64 and you have no problem with drivers. Have you disabled driver signature verification ? But you try this bellow.
First have you unlocked bootloader ? If bootloader unlocked you can boot phone into fastboot & flash with fastboot. Shutdown phone by hold power button for 10 seconds and fast hold volume down then push usb cable into phone. If first method not working, try reconnect battery and usb cable then hold volume down and connect usb to phone. On phone appear you have entered in fastboot mode. Use fastboot rom to flash via fastboot. Other method is try to disconnect battery and usb cable and connect again, try hold volume up and down and connect usb, also try test point method . If not working it's problem with windows and drivers, what version of windows are you using ? Take care with test point pin's to not damage.
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Thank you for replying. I have windows 10 x64 installed. I have disabled driver signature verification. The bootloader was unlocked via official manner. I cannot boot into fastboot. The phone is just dead. No response at all. I have successfully done the test point before but my phone was showing the MIU logo and entering fastboot. Now, the phone is just dead. The only sign of life it gives is when I connect it to the computer or charger. The light blinks red.

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I try cm 13 and I restore MIUI via twrp then i got this problem.
i try this method " en.miui.com/thread-245347-1-1 " and i can flash MIUI rom via miflash but when press power button the phone wont turn on or vibrate. please help.
sorry for my english.

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Test point must work, try to uninstall drivers from windows. First disconnect usb from phone, disconnect battery and usb cable and recoonect.
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Connect usb cable and does test point. If not working you have problem with drivers 99.9%. Try on another pc.
Follow this guide
http://en.miui.com/thread-274589-1-1.html