[ROM] Sony Smartwatch 3 ROM [LCA43]

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alex6600

Senior Member
Apr 23, 2008
1,016
924
ROM for Sony Smartwatch 3 [LCA43, Android 5.1.1]​

ROM Features:
  • Stock LCA43 base
  • Disabled OTA updates
  • Custom Kernel tetra_2.x
  • TWRP recovery
  • Tweaks

Versions

v 2.0
  • Kernel tetra_2.27.1
  • Minor tweaks

v 1.0
  • Stock LCA43 base
  • Kernel tetra_2.22
  • Disabled Low Bit Ambient Mode (thanks to andrewia)
  • Minor tweaks

Installation:

  1. Put ROM to your virtual SDCard
  2. Boot into TWRP recovery
  3. Select "Install", and choose ROM zip file
  4. After installation completed- reboot watch
    If necessary - make full wipe



Big thanks to scrubber for his ROM backup!

Code:
[COLOR="Red"]DISCLAMER[/COLOR]

Your warranty is now void.

I am not responsible for bricked devices, dead SD cards, thermonuclear war, or 
you getting fired because the alarm app failed. Please do some research if you 
have any concerns about features included in this ROM before flashing it! 
YOU are choosing to make these modifications, and if you point the finger 
at me for messing up your device, I will laugh at you.

If you like my work- Donate to me

Contributors:
alex6600
scrubber

Version Information
Status: Stable

Created 2016-04-27
Last Updated 2016-05-11
 
Last edited:

Hobbzey

Member
May 7, 2010
27
1
I'm all about this ROM as Marshmallow has just been one big rebooting mess!
However, during flashing everything went fine except the build.prop install...

Your line:
mount("ext4", "EMMC", "/dev/block/platform/sdhci.1/by-name/system", "/system", "max_batch_time=0,commit=1,data=ordered,barrier=1,errors=panic,nodelalloc");

Fails saying device is busy, or is not ready...???
 

Hobbzey

Member
May 7, 2010
27
1
I got it sorted out actually, turns out it was because I was using the version of TWRP I got from here:
http://forum.xda-developers.com/sma...24h-twrp-root-busybox-kernel-adiutor-t3365990
I initially skipped installing the one you provided above because I already had that one installed, but switched to the one you provided and reflashed with no errors!

One last question, is it possible to turn off the rounded screen corners? Is that something that can be edited into the build.prop or is it in kernel?
 

alex6600

Senior Member
Apr 23, 2008
1,016
924
I got it sorted out actually, turns out it was because I was using the version of TWRP I got from here:
http://forum.xda-developers.com/sma...24h-twrp-root-busybox-kernel-adiutor-t3365990
I initially skipped installing the one you provided above because I already had that one installed, but switched to the one you provided and reflashed with no errors!

One last question, is it possible to turn off the rounded screen corners? Is that something that can be edited into the build.prop or is it in kernel?

Rounded screen corners is a kernel feature, not ROM.
 

asecob

New member
May 1, 2016
2
0
Hi everyone, could someone please help me? I'm trying to downgrade my SW3 from MM to this rom, but I don't know how to do it. I've got installed windroid toolkit but it doesn't anything. I can't install twrp, unlock bootloader... nothing. I've got correctly installed ADB drivers, windroid recognises my watch, but this is everything I can do until here. I'm trying to do the downgrade because my battery flies twice per day, meanwhile in MM battery lasted up to 4 days... Has someone the same problem?
 
Hi everyone, could someone please help me? I'm trying to downgrade my SW3 from MM to this rom, but I don't know how to do it. I've got installed windroid toolkit but it doesn't anything. I can't install twrp, unlock bootloader... nothing. I've got correctly installed ADB drivers, windroid recognises my watch, but this is everything I can do until here. I'm trying to do the downgrade because my battery flies twice per day, meanwhile in MM battery lasted up to 4 days... Has someone the same problem?

Reboot to Fastboot, and flash the TWRP .img from there. (note: be sure you are in the directory where the twrp.img file is stored)
Code:
adb reboot bootloader
fastboot flash boot [I]twrp.img[/I]
fastboot reboot
adb reboot recovery
And viola. You can then flash this ROM.
 

asecob

New member
May 1, 2016
2
0
Reboot to Fastboot, and flash the TWRP .img from there. (note: be sure you are in the directory where the twrp.img file is stored)
Code:
adb reboot bootloader
fastboot flash boot [I]twrp.img[/I]
fastboot reboot
adb reboot recovery
And viola. You can then flash this ROM.

Thank you for your help, but unfortunately my watch didn't pass the white screen saying fastboot. PC was saying "waiting for device" for so much time. Am I doing something wrong?
 

mickael91210

Senior Member
Jan 5, 2009
505
28
Paris
htc-touch-hd.forumactif.biz
Reboot to Fastboot, and flash the TWRP .img from there. (note: be sure you are in the directory where the twrp.img file is stored)
Code:
adb reboot bootloader
fastboot flash boot [I]twrp.img[/I]
fastboot reboot
adb reboot recovery
And viola. You can then flash this ROM.

Hello and thanks for the command lines.
I want to try it because my battery drain is too high with MM and kernel 3.10.1 (but no reboots).

But .... How can I use the virtual SDCARD? How do I have to do to put the zip file in this SD? AFter, I think it will be ok....

Thanks.

It's OK actually, just after twrp flash, I have "VIRTUAL SDCARD" on my windows pc, I put the zip and I flashed it in recovery.

Thanks
 
Last edited:

alex6600

Senior Member
Apr 23, 2008
1,016
924
Hello and thanks for the command lines.
I want to try it because my battery drain is too high with MM and kernel 3.10.1 (but no reboots).

But .... How can I use the virtual SDCARD? How do I have to do to put the zip file in this SD? AFter, I think it will be ok....

Thanks.

When the watch is connected to computer, type:
adb push rom_file.zip /sdcard/Download/
This command will copy ROM to /sdcard/Download directory.
 
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KittenSauce

Senior Member
Nov 11, 2015
165
59
More excellent work! Will we be able to root this (i.e. flash supersu.zip in TWRP)? Also, I can't seem to access the files (ROM.zip, TWRP.img), is the site down?
 

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  • 5
    ROM for Sony Smartwatch 3 [LCA43, Android 5.1.1]​

    ROM Features:
    • Stock LCA43 base
    • Disabled OTA updates
    • Custom Kernel tetra_2.x
    • TWRP recovery
    • Tweaks

    Versions

    v 2.0
    • Kernel tetra_2.27.1
    • Minor tweaks

    v 1.0
    • Stock LCA43 base
    • Kernel tetra_2.22
    • Disabled Low Bit Ambient Mode (thanks to andrewia)
    • Minor tweaks

    Installation:

    1. Put ROM to your virtual SDCard
    2. Boot into TWRP recovery
    3. Select "Install", and choose ROM zip file
    4. After installation completed- reboot watch
      If necessary - make full wipe



    Big thanks to scrubber for his ROM backup!

    Code:
    [COLOR="Red"]DISCLAMER[/COLOR]
    
    Your warranty is now void.
    
    I am not responsible for bricked devices, dead SD cards, thermonuclear war, or 
    you getting fired because the alarm app failed. Please do some research if you 
    have any concerns about features included in this ROM before flashing it! 
    YOU are choosing to make these modifications, and if you point the finger 
    at me for messing up your device, I will laugh at you.

    If you like my work- Donate to me

    Contributors:
    alex6600
    scrubber

    Version Information
    Status: Stable

    Created 2016-04-27
    Last Updated 2016-05-11
    2
    OP updated with ROM version 2.

    Version 2 is minor update. Contains changed some build.prop flags regards to disable dalvik bytecode verification.
    After install I recommend format cache&userdata with fastboot command.
    2
    Anyone, including @alex6600, kept a copy of the files in the OP and is willing to share them?
    Links in OP fixed.
    1
    Thanks @alex6600!
    Just factory reset, and downgraded from Marshmallow, to this ROM.
    All is working well so far!
    1
    @alex6600 I was lacking the size and checksum of twrp.img, now found it's the one that also goes under "twrp-MEC24H.img" somewhere else. Thanks for reenabling the links!