[CLOSED] How to unlock bootloader of a vivo phone - Android Software/Hacking General [Developers Only]

Hi, I'm trying to unlock the bootloader of my phone ( Vivo y33s ), I have installed the drivers and used the Vivo fastboot tool to unlock it, but when i try to unlock it, it just days : " < Waiting for device > ".
I Have tried every single driver but hasn't worked, also when i use normal fastboot it sees the device, can anybody help? Also sorry for bad English

iVIERMA said:
Hi, I'm trying to unlock the bootloader of my phone ( Vivo y33s ), I have installed the drivers and used the Vivo fastboot tool to unlock it, but when i try to unlock it, it just days : " < Waiting for device > ".
I Have tried every single driver but hasn't worked, also when i use normal fastboot it sees the device, can anybody help? Also sorry for bad English
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You are a Senior Member of XDA forums so I guess you know how to navigate thru the site, isn't? :good:
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Hi
Thanks for writing to us at XDA Assist. The best way to tackle this is by reflashing the stock firmware or ROM. All you probably need to do is have the correct drivers installed on your PC in order for it to communicate with your phone. Take a look at this thread:
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If you still can't get it to work I'd suggest you ask your question here:
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Hi, thanks!
I installed adb+fastboot, adb found the device but fastboot not...
There's no fastboot mode on the recovery, any ideas?
Sent from my SM-G850F using xda Forum
lioryi said:
Hi, thanks!
I installed adb+fastboot, adb found the device but fastboot not...
There's no fastboot mode on the recovery, any ideas?
Sent from my SM-G850F using xda Forum
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I've linked you to the Android Q&A section just above, please ask any further questions there.
Thread closed, thanks.

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sanshoo said:
Hi everyone,
Hope I'm not breaking the rules but I'm desperate. I've Struggled to unlock my phone's bootloader and now I'm trying to change the bootloader. This is my first Android device and my first attempt to install Cyanogen. As I said I'm stuck with adb commands, I googled for hours and I didn't find a clear guide until I installed SDK from Google I managed to use them on my pc, the problem is that it can't detect my device. When I prompt adb devices it doesn't show anything, help please :crying::crying:
PS
The guide I'm following is this one
EDIT:
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Click to expand...
Click to collapse
Hello and thank you for using XDA Assist.
We cannot provide technical support nor can other members reply to your posts here on XDA Assist and here is no forum specifically for the Huawei G620S at this time but you may want to ask your question with all relevant details in the friendly general Android Q&A, Help & Troubleshooting forum at http://forum.xda-developers.com/android/help. That's a good place to start where members familiar with your device might be able to advise you. First, though, consider simply posting in the thread where you found the guide that you are attempting to follow.
Good luck!

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