[Amazfit] 1immortal:
Heya all,

As we all seen and know, the PACE/Stratos/Verge(WIP*) devices have 2 flashing modes:

1. Fastboot - where we need an unlocked bootloader for the watch to be able to downgrade/upgrade/flash custom ROMs.

2. ForceErase - the 2nd option, that no one wants to go there, because is soooooo f#%@ing complicated to get out of there with the JZ4875 mode under the device manager....

a lot of times users wrote that they managed to re-flash their devices in that mode, they wrote some lines, but there was no actual step by step tutorial on how to do that.

Well, there is now.

First of all, THIS CAN KILL YOUR WATCH, FOR REAL, FOR GOOD.

I taking no responsibility on dead watches, failed flash routines, hungry kittens or bears stealing your crops. Following these steps is on your responsibility, read it 7 times before starting to do anything.

You will need:

1. an Amazfit Watch - PACE or Stratos, Verge and Stratos 3 - Verge and Stratos 3 been tested by @Saratoga79 - thanks a gazillion capara :highfive:

2. a Windows machine - there are tools for linux based OSs, will be added in 2nd post. If you're running on an x64 machine, have it booted with driver signature disabled - http://bfy.tw/McS7

3. Drivers installation ability - you will need to enforce drivers on your device - make sure you're up to that, and you know how to install drivers, if you don't know how, youtube around a little.

Files needed:

1. Cloner - latest Ingenic version 2.5 - AFH link | MEGA link

2. Preferably, stock rom of your watch - There are Stock rom threads by saratoga79 for our devices, you will need both Full pack and the OTA files as well, as they are posted on each version:

PACE roms - https://goo.gl/h57omp​

Stratos roms - https://goo.gl/6JdBoU​

Stratos 3 roms - https://xdaforums.com/smartwatch/amazfit/fw-tool-stock-global-international-t4031153​

Verge roms - http://bit.ly/2M85nfy​

Let's dive in.

1. As stated before, if running an x86 machine, boot it normally. in case of an x64 one - this is probably what you have - boot your windows without drivers signature - this is mandatory.

2. Download the Cloner app from the links above, and extract it with your favorite zip manager. If using windows explorer, do not run the software directly from the zip file, extract it into an accessible folder, and run the app.

View attachment 5186351

Go into the Config

under the INFO tab, make sure to select m200s on the platform and under the board, select M200s_lpddr2_android.cfg

in the Misc selection, do not change anything, make sure that Force Reset is selected.

View attachment 5186353

Now .... remember the stock roms ?

You will need to extract from the stock rom installer the following files:

boot.img

recovery.img

system.img.gz -> this one needs to be extracted again into a much larger file -> system.img

From the OTA file, you need to extract the following file:

u-boot-with-spl-mbr-gpt.bin

Make sure to take the relevant OTA file, the one that OTAs to the rom version, for example:

you wish to flash 2.3.7.0, you will need to take the 2.3.7.0 stock rom and to take the 2.3.6.1->2.3.7.0 OTA file.

After extracting all files into one folder, switch to the Policy tab:

View attachment 5186355

take a look at the green marked areas:

Make sure not to change anything, and load the file by pressing the 3 dots on the right of the row according to their field from the location from the folder you've extracted the rom files to.

should look like this:

View attachment 5186357

After the correct file selection, press Save and Yes to save the current config.

Now .... to the tricky part - entering your watch into flashing mode by force, if you're not stuck in it in the first place:

PACE - place the watch in the charger while connected to your PC, press the power button until watch rebooted. As the screen lits up, count to 4~5 at a fast pace and release the button.​

If done at a proper timing, you should see this on the screen.​

​

Double press on the power button will enter your watch into the deep flash, and you will see absolutely nothing on the screen, and you'll get a new unknown device under the file manager.​

Stratos - place the watch in the charger while connected to your PC, press the power button until watch rebooted. As the screen lits up, count to 8~9 at a fast pace and release the button.​

If done at a proper timing, you should see this on the screen.​

​

Tripple press on the power button will enter your watch into the deep flash, and you will see absolutely nothing on the screen, and you'll get a new unknown device under the file manager.​

Stratos 3 instructions - Again, thanks @Saratoga79 !

0. Watch turned on (showing Amazfit logo probably) and connected to PC

2. Press the top button until the watch turns off and keep pressing

3. When the screen turns on, release the button and press it immediately and keep pressing until the screen turns off and keep pressing

4. When screen turns on, count 4 Mississippis and release the button. If everything went fine, you may be in fastboot and ForceErase menu

5. Press 3 times the top button to enter into ForceErase mode

6. Install JZ4875 driver, setup de Tool same way is explained in the thread, and press Start

7. Press the top button in the watch until the tool stars flashing.

Now ... the device manager.

depends on your operating system, you might see this device:

View attachment 5186361

or something named as JZ4875 device, or something new that wasn't there before. if not sure, post a screenshot of your device manager and we will guide you what and why.

the specific screenshot is autodetected by Windows 10 x64 - a manual installation of drivers is mandatory, the flashing drivers are in the cloner folder.

Follow this flow for driver installation, and when prompted to install the untrusted device, allow the installation.

View attachment 5186363

View attachment 5186367

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So now we have a saved configuration and a device in the correct mood for flashing.

press the Start on the initial cloner screen:

View attachment 5186371

At this point, with the PACE watch, you will have to press the power button for initiating the flash, on the Stratos device you will have to press the power button for some 5 seconds until it will start to work.

If not sure how long to hold the power button, press it and hold it until you'll see this screen:

View attachment 5186373

The system flashing time might take a while, so have patience.

At the end of the process , the watch will reboot and should start normally.

Validate your SN number - if your watch is BL unlocked and you downgraded it, and now you're lacking SN, you will need to manually restore it via these instructions.

This will be updated with Verge related instructions as soon as i'll do this on a Verge.

Any questions or problems, post screenshots with your problems.

Thanks!