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[Q & A] Cannot read from port com3 redmi note 3

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04:30, Oct-02-2016 | From PC
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Hello, yesterday i try to flash to the global rom from the vendor rom,unfortunately i stuck with error '' cannot read from port com3'' ,i try to use miflash beta and even the latest miflash,but the error still appear,anyone can help me?
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I Love MIUI

07:53, Oct-02-2016 | From PC
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Read this Tutorial by Muz_paray

http://en.miui.com/thread-235865-1-1.html

Current MiFlash tool (60830)
http://en.miui.com/forum.php?mod ... ight=miflash%2Btool

If the above flash tool does not work or you get sys errors

try MiFlash tool (60401)
http://en.miui.com/thread-272376-1-1.html

ensure you have the correct drivers installed

Follow Tutorial precisely

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 Author| 21:55, Oct-07-2016 | From PC
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Thank you, everything solved,now enjoying the stable globa rom.

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22:15, Nov-18-2016 | From PC
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I had the same problem and I tried 3 different usb cables and 2 laptops. still I had the same problem. Then I tried a usb cable from my neighbor and boom, it worked. so happens all 3 of my cables were chinese fake samsung cables. You have to use an original brand name cable for it to work. the fake chinese knock offs don't make good connection or missing contacts inside the usb. They are mainly used to charge the cell phone and thats, about it.

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01:18, Dec-07-2016 | From PC
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thank you

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22:13, Apr-08-2017 | From PC
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--Solved--

1)Log into you mi account in you phone
2)Enable usb debugging
3)Boot into Fastboot  (adb reboot bootloader)
4)Enter Download mode (fastboot oem edl)
4)Flash with miflash beta tool.
5)Enjoy

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