Amazfit - boot into fastboot directly

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Deleted member 4490808

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Hi,

I finally found the real method to boot our Amazfit watch into fastboot. It is difficult to success at any time, but you should be able to boot fastboot directly after some try.
Here is the procedure : (I've made a video : https://www.youtube.com/watch?v=ZlXoeq30vM0 )

When you try, I advice to put the watch in its charging base, the usb Cable connected to the base, but not on the PC.
Here are the steps to go in fastboot mode :
1) press the power button 2 seconds
2) release the button et repress it again without releasing it
3) when the screen of the watch switch off, plug the usb cable.
4) when the screen turn on, count from 1 to 4. At 4 release the power button. You are now in fastboot.
If it fails, try again. It is a little difficult. :D

Hope this helps.
kiralex
 
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1immortal

Senior Member
Aug 19, 2007
1,049
471
Petah Tiqwa
dogodroid.comuf.com
OMG!

edit:
how the hell do i get those files inside with only wastboot mode ... FFS

2nd edit: @Neuer_User, I have the pulled mmcblk0p7 on the storage, is there any possible way of pushing it back into the system via fastboot?
 

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Neuer_User

Senior Member
Jul 16, 2010
1,090
2,524
Guys, that is so great! And @kiralex1995 deserves highest thanks for his finding! We need to get a stickied post for this!!
@1immortal: I'll prepare instructions for you. You will need a modified boot image and then boot this. Then you can flash system from there!
 

MyriaBoa

Senior Member
Jan 19, 2017
163
33
Accidentally opened fastboot with a different method.
My device didn't show up under Windows 7, after I installed adb and fastboot drivers.

So with device connected to usb I typed adb kill-server, then adb start-server and adb wait-for-device then I switched it on and off... tadaa fastboot. See picture with command lines.
 

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Neuer_User

Senior Member
Jul 16, 2010
1,090
2,524
Accidentally opened fastboot with a different method.
My device didn't show up under Windows 7, after I installed adb and fastboot drivers.

So with device connected to usb I typed adb kill-server, then adb start-server and adb wait-for-device then I switched it on and off... tadaa fastboot. See picture with command lines.
Interesting. See if you can make it reproducable. That would be great!

---------- Post added at 08:39 PM ---------- Previous post was at 08:37 PM ----------

I wrote some unbricking instructions and a flash script to recover bricked watches with @kiralex1995 method of entering fastboot.
Hope, it helps recover the small number of watches known to be bricked through flashing.

https://forum.xda-developers.com/sm...tches/tutorial-unbrick-huami-amazfit-t3547300
 
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MyriaBoa

Senior Member
Jan 19, 2017
163
33
My fastboot method was reproducable on a different machine on Windows 10 . Needed 2 attempts. Seems a question of timing. Right before it happens, the computer makes the notification sound for 'new usb device detected'.
 

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alexinc

Senior Member
Feb 4, 2008
641
77
My fastboot method was reproducable on a different machine on Windows 10 . Needed 2 attempts. Seems a question of timing. Right before it happens, the computer makes the notification sound for 'new usb device detected'.

maybe you need to explain a little bit more detailed? is the watch running and completely booted when you connect to usb and type those adb commands or is it switched off? when you turn it on, how fast do you turn it off? i didn't get it yet. please explain a bit more. :)
 
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Neuer_User

Senior Member
Jul 16, 2010
1,090
2,524
Accidentally opened fastboot with a different method.
My device didn't show up under Windows 7, after I installed adb and fastboot drivers.

So with device connected to usb I typed adb kill-server, then adb start-server and adb wait-for-device then I switched it on and off... tadaa fastboot. See picture with command lines.
It is interesting. Does it work with out th.e adb kill-server and adb start-server commands? I do not see, how they could be involved... :confused:
The adb wait-for-server might be the key. So, when the watch is started, there is some USB communication on-going. I'd love to do some testing on that. Will do that for sure, when I get the development watch :)
 

MyriaBoa

Senior Member
Jan 19, 2017
163
33
I' m not near my computer, so I can't do more tests now.
As I wrote in my first post, it wasn't my intention to open fastboot, when it accindentally happened for the first time.

The kill and start commands were given, because my Windows 7 machine pretended not to see the watch in adb (only as usb), and I thought, maybe it's detected, when I turn it on while adb is waiting for device and the usb notification 'kicks in'.

But nothing happened, so I pushed the button, to turn the watch off again.
To my surprise the result was fastboot.

I repeated the same steps today on my Windows 10 computer that always detects the watch in adb and it opened fastboot again.
 

watson222

New member
Dec 13, 2017
2
0
Could you specify for which build or version you tried this? I (unfortunately) had the update to 1.3.5 and there seems to be no way to enter fastboot. It also is not recognised as an adb device
 

tfsgamerpt

Member
Nov 10, 2015
8
0
I have a amazfit pace but he is stucked on a update screen and when I try entring in fast boot mode he doesn´t enter and goes to update again and don´t conclude that. What can I do?
 

Poborak

Member
Oct 18, 2013
11
4
Did anybody managed to get Amazfit 2 (stratos) to fastboot using this method? thx...

EDIT: Yes, I can confirm it works! However it is really kind of tricky. Embrace yourselves! :)
Many thanks to you guys for finding this out, you are the best!
 
Last edited:

endrancer

Senior Member
Sep 8, 2012
371
81
Frankfurt am Main
carstengrimm.com
Hi,

I finally found the real method to boot our Amazfit watch into fastboot. It is difficult to success at any time, but you should be able to boot fastboot directly after some try.
Here is the procedure : (I've made a video : https://www.youtube.com/watch?v=ZlXoeq30vM0 )

When you try, I advice to put the watch in its charging base, the usb Cable connected to the base, but not on the PC.
Here are the steps to go in fastboot mode :
1) press the power button 2 seconds
2) release the button et repress it again without releasing it
3) when the screen of the watch switch off, plug the usb cable.
4) when the screen turn on, count from 1 to 4. At 4 release the power button. You are now in fastboot.
If it fails, try again. It is a little difficult. :D

Hope this helps.
kiralex

can confirm that this method (sort of) works for stratos as well.

i guess the important part is the 4 seconds after the light goes on. i have done it in like the 8th try.
i guess pulling the usb cable and reattaching it is not really required...
 
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Renegade1504

Senior Member
Apr 9, 2012
186
101
can confirm that this method (sort of) works for stratos as well.

i guess the important part is the 4 seconds after the light goes on. i have done it in like the 8th try.
i guess pulling the usb cable and reattaching it is not really required...

Hi all together,

yes I can confirm that plugging the cable is not neccessary. Went back to stock yesterday. Got into fastboot on first try. :eek:
 

E-lian

New member
May 22, 2008
2
0
I'm trying that on an actual Stratos watch way longer than 40 minutes - maybe you could help me: I have an "A1619"-model with firmware 2.3.5.0. Same for other Stratos users?
Unlike in the linked video, when I'm at step #4, the "A."-logo appears after about 2 seconds again, so if I release the power button after 4, it's already visible and bootup goes on as normal. Did you notice the same behavior with the "A."-logo before accessing fastboot?
 

MorpheusPL

New member
May 4, 2009
1
0
I'm trying that on an actual Stratos watch way longer than 40 minutes - maybe you could help me: I have an "A1619"-model with firmware 2.3.5.0. Same for other Stratos users?
Unlike in the linked video, when I'm at step #4, the "A."-logo appears after about 2 seconds again, so if I release the power button after 4, it's already visible and bootup goes on as normal. Did you notice the same behavior with the "A."-logo before accessing fastboot?

Hello
I've bricked my Pace and cannot enter fastboot.
When I try to enter fastboot I have the same behaviour on my Amazfit Pace. Have You managed some how to enter the fastboot without connection to the PC?
 

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    Deleted member 4490808
    Hi,

    I finally found the real method to boot our Amazfit watch into fastboot. It is difficult to success at any time, but you should be able to boot fastboot directly after some try.
    Here is the procedure : (I've made a video : https://www.youtube.com/watch?v=ZlXoeq30vM0 )

    When you try, I advice to put the watch in its charging base, the usb Cable connected to the base, but not on the PC.
    Here are the steps to go in fastboot mode :
    1) press the power button 2 seconds
    2) release the button et repress it again without releasing it
    3) when the screen of the watch switch off, plug the usb cable.
    4) when the screen turn on, count from 1 to 4. At 4 release the power button. You are now in fastboot.
    If it fails, try again. It is a little difficult. :D

    Hope this helps.
    kiralex
    2
    Accidentally opened fastboot with a different method.
    My device didn't show up under Windows 7, after I installed adb and fastboot drivers.

    So with device connected to usb I typed adb kill-server, then adb start-server and adb wait-for-device then I switched it on and off... tadaa fastboot. See picture with command lines.
    Interesting. See if you can make it reproducable. That would be great!

    ---------- Post added at 08:39 PM ---------- Previous post was at 08:37 PM ----------

    I wrote some unbricking instructions and a flash script to recover bricked watches with @kiralex1995 method of entering fastboot.
    Hope, it helps recover the small number of watches known to be bricked through flashing.

    https://forum.xda-developers.com/sm...tches/tutorial-unbrick-huami-amazfit-t3547300
    2
    I had also some problems to boot in fastboot on my Stratos using the given method.
    My method had been :
    1) plug the watch to PC
    2) start it
    3) sometimes you here that the watch is detected, once it is, type "adb reboot fastboot"
    4) The watch reboot, then the screen switch off and then on => At that time press the power button for 4 sec.
    5) you are in fastboot ... normally :)

    Hope that helps
    1
    My fastboot method was reproducable on a different machine on Windows 10 . Needed 2 attempts. Seems a question of timing. Right before it happens, the computer makes the notification sound for 'new usb device detected'.

    maybe you need to explain a little bit more detailed? is the watch running and completely booted when you connect to usb and type those adb commands or is it switched off? when you turn it on, how fast do you turn it off? i didn't get it yet. please explain a bit more. :)
    1
    Hi,

    I finally found the real method to boot our Amazfit watch into fastboot. It is difficult to success at any time, but you should be able to boot fastboot directly after some try.
    Here is the procedure : (I've made a video : https://www.youtube.com/watch?v=ZlXoeq30vM0 )

    When you try, I advice to put the watch in its charging base, the usb Cable connected to the base, but not on the PC.
    Here are the steps to go in fastboot mode :
    1) press the power button 2 seconds
    2) release the button et repress it again without releasing it
    3) when the screen of the watch switch off, plug the usb cable.
    4) when the screen turn on, count from 1 to 4. At 4 release the power button. You are now in fastboot.
    If it fails, try again. It is a little difficult. :D

    Hope this helps.
    kiralex

    can confirm that this method (sort of) works for stratos as well.

    i guess the important part is the 4 seconds after the light goes on. i have done it in like the 8th try.
    i guess pulling the usb cable and reattaching it is not really required...
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