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TWRP on Samsung Gear

Discussion in 'Wear Os' started by Boowho, Nov 15, 2019.

  1. Boowho

    Boowho Newbie
    Thread Starter

    Have an old Samsung Gear watch that is running Android 6.01

    Would like to flash TWRP onto it. It flashes fine and boots into TWRP.

    But at the next system boot it's being returned to stock recovery.

    I know this is a known problem on some devices.

    I've also tried flashing both TWRP along with a patched boot.img created from the stock boot image using Magisk (on another device) That patching proceeded fine with no errors.

    At this point TWRP "stuck"........ but it "stuck" TOO well. The device boot looped in TWRP.

    Advice/thoughts/comments???
     



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  2. James L

    James L Android Expert

    I'm pretty sure I know what the issue is as I have dealt with this device before. Post the steps you have taken and I can see if i can help you.
     
    mikedt and ocnbrze like this.
  3. Boowho

    Boowho Newbie
    Thread Starter

    Thanks for the response. What steps are you asking about?

    I thought my OP pretty much covered that, but maybe I don't understand your response.
     
  4. James L

    James L Android Expert

    You're missing steps after the Twrp install. You need to run a few adb commands after installing Twrp.
     
  5. James L

    James L Android Expert

    $ adb shell

    $ su

    # mount -o rw,remount /dev/block/mmcblk0p20 /system

    # rm /system/recovery-from-boot.p
     
  6. James L

    James L Android Expert

    I would start over, reflash the firmware for the device. After it boots and is setup. Root, flash twrp, run the commands above.
     
  7. Boowho

    Boowho Newbie
    Thread Starter

    Thanks, I will try what you suggest. My original post should have said I was using Odin.
     
  8. Boowho

    Boowho Newbie
    Thread Starter


    I'm still confused..... I just flashed TWRP using fastboot. If I reboot to system, I lose TWRP.

    But unless I reboot to system, I'm not able to issue the ADB commands you mention.

    What am I missing??
     
  9. James L

    James L Android Expert

    You should be able to run adb commands in Twrp, sounds like a driver issue once you're in twrp. I will check the thread in a bit. rooting a S10 for a client in S. Africa at the moment.
     
  10. James L

    James L Android Expert

    When you boot into Twrp look at device manager on the PC. Sounds like a driver issue.
     
  11. Boowho

    Boowho Newbie
    Thread Starter

    I may have partition problems as well. I notice that when I DO have TWRP working, I see partition errors (like not mounted, no such device, etc) in the mount screen, etc.

    I've soft-bricked the device so many times, I'm getting disgusted. This morning I had one heluva time getting the watch to connect to Odin to factory-restore it.

    Maybe I should just give it up; I've been trying (off and on) for several YEARS. 8-(
     
    #11 Boowho, Nov 17, 2019
    Last edited: Nov 17, 2019
  12. MrJavi

    MrJavi Android Expert

    I'm not familiar with that specific device but I am familiar with MM, Root, Odin, TWRP and softbrick issues. It would be helpful is you provide the exact fail or mount issues for instence fail to mount efs, DM'Verity fail, DRK. The partitions could be incompatible firmware had to say exactly what without more info. Try checking your download with an MD5 checker and make sure the Official OEM firmware is the exact one for your specific model. Good luck

    https://forum.xda-developers.com/smartwatch/galaxy-watch/
     
  13. Boowho

    Boowho Newbie
    Thread Starter

    Thanks the error is (from the TWRP mount tab) failed to mount '/system' no such device

    Also the system partition size is shown as 0; which is strange since I can boot into system.
     
    #13 Boowho, Nov 20, 2019
    Last edited: Nov 20, 2019
    MrJavi likes this.
  14. MrJavi

    MrJavi Android Expert

    I think you best bet is to wait for James L. as he has experience with that pericardial device. If it was a Note 4 qualcomm I could definitely provide you with forst hand knowledge. If I think of something useful to provide, Ill post back. Im sure you in good hand. Good luck
     
  15. Boowho

    Boowho Newbie
    Thread Starter

    pericardial ???
     
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