[GUIDE] How to revert back to Android Wear 1.5

ingbrzy · Jul 11, 2017

How to revert back to Android Wear 1.5

Flashing stock AW1.5 build:
- Unlock your bootloader
- Reboot into FASTBOOT MODE
- Download STOCK ROM MWG68 images
- via adb type commands:

Code:

fastboot flash system system.img
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot erase userdata
fastboot reboot

How to block OTA to AW 2.0
- adb shell
- pm disable com.google.android.gms/.update.SystemUpdateService
- pm disable com.google.android.gsf/.update.SystemUpdateService
- exit

Maxr1998 · Jul 12, 2017

ingbrzy said:
How to block OTA to AW 2.0
- adb reboot bootloader
- adb shell
- pm disable com.google.android.gms/.update.SystemUpdateService
- pm disable com.google.android.gsf/.update.SystemUpdateService
- exit

This probably won't work, you don't have adb shell available in bootloader, and while booted up you can't use the pm disable command without root..

ingbrzy · Jul 12, 2017

Maxr1998 said:
This probably won't work, you don't have adb shell available in bootloader, and while booted up you can't use the pm disable command without root..

true.. it will be more easier to boot TWRP, disable dm-verify and edit build.prop line

Code:

ro.build.id=MWG68

to

Code:

ro.build.id=MWG68_something

yilun · Jul 15, 2017

Thanks, i had to revert because i started getting random reboots since 2.0... Now I'mm gonna wait and see if it continues.
BTW, i think you forgot "fastboot oem lock" after downgrading.

asafgolan · Jul 18, 2017

after following the guide and flashing aw 1.5 I get an error saying zenwatch manager has stopped and then the reboots, and so on.
any ideas what went wrong and how can I fix this?

ingbrzy · Jul 18, 2017

asafgolan said:
after following the guide and flashing aw 1.5 I get an error saying zenwatch manager has stopped and then the reboots, and so on.
any ideas what went wrong and how can I fix this?

make factory reset.. unpair and reset in the settings..

asafgolan · Jul 18, 2017

ingbrzy said:
make factory reset.. unpair and reset in the settings..

Thanks, that did the trick!

MK24ever · Jul 18, 2017

I'm having to much issues with 2.0 and overall I hate the update, so this guide is very appreciated, yet my watch is brand new and I don't want to mess things up, can you please do a complete guide with links to all the software needed and stuff? This seems to be for those who are already in the "knowing how to flash the FW", I believe I need to unlock the bootloader to in order to revert to AW 1.5 right? Or isn't that needed?

Thanks for the help @ingbrzy

BigWopHH · Jul 18, 2017

Any chance one of you can help with this issue?

https://xdaforums.com/zenwatch-3/how-to/fastboot-recovery-getting-g-co-abh-t3637403

MK24ever · Jul 21, 2017

Ok, I've been doing some reading and I'm almost ready to flash the watch back to 1.5, but just in case I'll make here the full list of what I've done/about to do, please check if all is correct:

1 - Download and place the Platform-tools folder from here on a easy access place to access on your PC
1.b - Edith Path Variable as shown here just be make things easier

2 - Enable USB debugging on watch by going to the watch Settings/System/About and pressing a few times on the Build Number
2.B - To check if the connection is well done between watch and PC open a command line on Windows and write "adb devices", it should show the watch SN listed

3 - Unlock the bootloader!
3.1 - Reboot to fastload (via *adb command* (You do this by opening a command prompt window from within windows itself) "adb reboot bootloader")
3.2 - type command "fastboot oem unlock"

4 - Download STOCK ROM MWG68 images

From here is where I have doubts, DON'T FOLLOW THESE INSTRUCTIONS until someone more experienced confirms if it's correct or not

5 - Place the files unziped: system.img / boot.img and recovery.img downloaded on point 4 inside the platform-tools folder in point 1

6 - Open a command prompt window and past the following code ***DOUBT*** Full code at once as shown bellow or line by line followed by enter??

Code:

fastboot flash system system.img
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot erase userdata
fastboot reboot

7 - make factory reset on watch by... "unpair and reset" in the watch settings...

7.1 - Re-lock bootloader is advised? How and why to do it?

8 - Don't install AW 2.0 again?

@ingbrzy is this correct or am I missing something?

Hoffmanns · Jul 21, 2017

Thank you for this thread :good:
I'm back on 1.5

it's better for me in this moment...
My watch understand me again :laugh::laugh::laugh:

Edit:
I have two questions:
How I lock bootloader?
How to block Ota? Easiest way?

Thank you very much

Misterjunky · Jul 22, 2017

Android Wear Updates

Does anyone know if leaving the bootloader unlocked prevents android wear 2.0 OTA
updates or any other updates?

Thanks, have a great day!

Hoffmanns · Jul 22, 2017

Misterjunky said:
Does anyone know if leaving the bootloader unlocked prevents android wear 2.0 OTA
updates or any other updates?

Thanks, have a great day!

No, I have unlocked bootloader and after night my watch download AW2.0 update

Misterjunky · Jul 22, 2017

TWRP Recovery

I wonder if installing TWRP recovery might prevent Android Wear 2.0 OTA update?
I am on Android Wear 1.5 and do not want to update or get notifications to update.

Thanks,

---------- Post added at 01:02 AM ---------- Previous post was at 12:47 AM ----------

Hoffmanns said:
No, I have unlocked bootloader and after night my watch download AW2.0 update

Have you or anyone found a way to delete the AW2.0 update file from the watch?

Thanks!

Hoffmanns · Jul 22, 2017

Misterjunky said:
Have you or anyone found a way to delete the AW2.0 update file from the watch?

Thanks!

In this moment NO

Factory reset in recovery may help...

But I need block OTA update first

Misterjunky · Jul 22, 2017

re: Build Prop file

ingbrzy said:
true.. it will be more easier to boot TWRP, disable dm-verify and edit build.prop line

Code:

ro.build.id=MWG68

to

Code:

ro.build.id=MWG68_something

@ingbrzy

Is it possible to use adb to pull and push the build-prop
file from /system to /sdcard or some other place where it would be
accessible making it easy to edit without rooting the watch?
(preferably someplace in Windows 10 or in my S7 Edge phone?)

If it's possible, could you please post the adb commands to pull and push the file?

Thanks in advance, have a great day!

worldsoutro · Jul 24, 2017

I may go back as well. Aw 2.0 hasn't been a totally smooth experience even after wiping data and clearing cache. Sometimes it'll stutter and I will end up clearing all notifications instead of going one by one

avchd · Jul 28, 2017

Someone, please explain how to block OTA update to 2.0.... Please

Misterjunky · Jul 28, 2017

re: Block OTA notifications

avchd said:
Someone, please explain how to block OTA update to 2.0.... Please

The only way I found to block updates and notifications for updates
is to ROOT the watch.

I rooted my watch 3 days ago after really trying to like this AW 2.0
but after all was said and done I just could not see any reason to
keep the new AW 2.0.

The only two things which we good and nice in AW 2.0 was the
really good looking and smooth/fast scrolling of the app drawer
and the nicer notifications which AW 2.0 has.

But everything else in AW 2.0 is really crappy way too crappy for me.

If you are interested in rooting and twrping your watch here is the link
with step by step instructions and download links for the rom.

Android Wear v1.5 pre-rooted and twrp'ed custom rom:
https://xdaforums.com/zenwatch-3/development/rom-asus-zenwatch-3-swift-t3537340

The main problem with keeping AW 1.5 without flashing
a custom rom is all those OTA notifications you get over
and over again without a way to disable the notifications.

Come on guys, do we really need a Google Play store in our watch... LOL
Also the only way a watch can be called "stand-alone" is if it has a sim card.

Good luck, have a great day!

pyroguysf · Jul 28, 2017

Even though I knew what I was doing, I was on a new computer so I "followed" your instructions because I've never seen anyone write it out so thoroughly from no ADB at all, and glad to say you pretty much nailed it through that. Except step 2, it's more like a whole bunch of times. Don't know why you've gone un-thanked and un-replied!

Step 5 is unnecessary because of the method of setting up ADB with the path variable described in 1b (if you don't do step 1b, then the files need to be in the platform-tools folder). You just need to get to the same folder in the command prompt as the files. The command prompt by default opens to C:\Users\pyroguysf (or whatever your own name is), which is where your downloads folder is located by default, so if you unzip the files to your downloads folder, type "cd Downloads" to navigate into your downloads folder. Once you're in the same folder as the img files you unzipped, then run the commands listed in step 6, each line, one at a time. After each one, it should show the progress, and make sure it says completed not failed (I forget the exact words used) before going to the next. If it fails that's a separate topic, but it shouldn't. I always advise a factory reset after any significant software changes. Re-locking the bootloader is for security's sake, and while not 100% necessary, is highly recommended, unless you plan to be changing the software again anytime soon (I see a modified version in this thread that supposedly has OTA's disabled I might try, but this is slightly more advanced). Re-locking is basically the reverse of step 3 - reboot into bootloader with "adb reboot bootloader" and then once it's there "fastboot oem lock" instead of unlock.

Edit: That's right, you get the message upon boot for a while that your device can't be checked for corruption when it's unlocked. Also, my watch won't boot now, so I'm going to try a few more things... That's why I waited until the weekend.

Edit2: Re-unzipped the files (md5 was fine), did boot, recovery, then system, and did "fastboot format userdata" instead of "fastboot erase userdata" in step 6.

Edit3: Edited the quote from MK2ever below with what worked for me.

MK24ever said:
Ok, I've been doing some reading and I'm almost ready to flash the watch back to 1.5, but just in case I'll make here the full list of what I've done/about to do, please check if all is correct:

1 - Download and place the Platform-tools folder from here on a easy access place to access on your PC
1.b - Edit Path Variable as shown here just be make things easier

2 - Enable USB debugging on watch by going to the watch Settings/System/About and pressing repeatedly on the Build Number until it says "you are a developer!"
2A. Go to Settings>Developer Options and turn on "ADB Debugging" and plug your watch cradle into your computer and wait until windows installs drivers (Win 7 found them automatically for me)
2.B - To check if the connection is well done between watch and PC open a command line on Windows and write "adb devices", it should show the watch SN listed
2.C - when your watch asks to allow connections, tap "always allow from this computer"

3 - Unlock the bootloader!
3.1 - Reboot to fastboot (via *adb command* (You do this by opening a command prompt window from within windows itself) "adb reboot bootloader")
3.2 - wait until the watch says "fastboot mode" then type command "fastboot oem unlock"

4 - Download STOCK ROM MWG68 images

5 - Place the unzipped files system.img boot.img and recovery.img into your downloads folder.

6 - Open a command prompt window and type "cd Downloads" to get to navigate into your downloads folder (Windows 7 default, 8 and 10 too I think) and then enter the following commands one at a time waiting for it to give a "completed" message before moving on

Code:

fastboot flash boot boot.img fastboot flash recovery recovery.img fastboot flash system system.img fastboot format userdata fastboot reboot

7 - make factory reset on watch by... "unpair and reset" in the watch settings...

7.1 - Re-lock bootloader is advised. Repeat steps 2 through 3.1 and then "fastboot oem lock"

8 - Don't install AW 2.0 again?

[GUIDE] How to revert back to Android Wear 1.5

Do you like Aandroid Wear 2.0?

YES

NO

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