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u18 android smart watch

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DARK_A

Member
Aug 16, 2015
17
1
hello everyone how are you
i have a q dose anyone have mods or root or anything for the smart watch u18 it have android 4.4 but not pure android it dose not have playstore but it can install some app via aptoid but it can not install playstore or watch faces
so any help installing play store or enableing installing watch faces will be great
thanks in advance
 

KeltikRellik

New member
Aug 19, 2015
3
0
Hi, I also have one of these.

Any info gratefully accepted.

It appears to be trying to update today but fails the download each time U18_V2.4 same with the USmart app for the phone.

Again any info appreciated.
 

the steve

Senior Member
Aug 9, 2015
277
72
Pushing buttons during boot does't work I think. On my smartphone it is possible to reboot into recovery with the extended restart menu. This must be activated in developer options. Maybe the watch has this option too?
 

KeltikRellik

New member
Aug 19, 2015
3
0
Update, managed to download u18_v2.4.zip using the app on the phone.

It crashed the watch and left it in a set up mode with red exclamation in a triangle.

Rebooted watch and it's back to normal with no update.

Copied u18_v2.4.zip to PC and tried to extract, multiple errors
Code:
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\fstab.fat.nand
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\system
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sys
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\ueventd.rc
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sbchk
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sbchk\sbchk
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sbchk\sec_chk.sh
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\fstab
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\proc
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\FWUpgradeInit.rc
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\factory_init.rc
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\keys
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\icon_installing_overlay07.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\indeterminate05.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\icon_installing_overlay05.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\icon_installing_overlay01.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\icon_installing.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\indeterminate02.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\erasing_text.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\error_text.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\icon_installing_overlay06.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\installing_text.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\icon_installing_overlay03.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\progress_empty.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\progress_fill.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\indeterminate04.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\indeterminate03.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\icon_installing_overlay04.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\no_command_text.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\icon_installing_overlay02.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\indeterminate01.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\icon_error.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\indeterminate06.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\res\images\font.png
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sepolicy
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\meta_init.project.rc
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\seapp_contexts
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\data
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sbin
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sbin\gzip
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sbin\watchdogd
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sbin\adbd
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sbin\healthd
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sbin\recovery
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\sbin\ueventd
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\init.rc
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\property_contexts
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\fstab.nand
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\dev
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\init
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\file_contexts
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\fs.rc
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\meta_init.modem.rc
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\etc
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\etc\recovery.fstab
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\meta_init.rc
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\default.prop
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create folder C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\tmp
!   The system cannot find the path specified.
    C:\Users\Jason\Desktop\rebuilt.U18_V2.4.zip: Cannot create C:\Users\Jason\Desktop\rebuilt.U18_V2.4\RECOVERY\RAMDISK\factory_init.project.rc
!   The system cannot find the path specified.

Also have a new folder on watch "USMART" with sub folder "update"

Any ideas? Should I dump the .zip files in update?
 

ghenton

Member
Feb 12, 2011
21
2
Grindrod
what I have managed so far

I have a U18 as well, same problems, as posted above.

I have accessed recovery with adb reboot recovery, there is no options menu
I have accessed fastboot with adb reboot bootloader there is no options menu
I have also managed shell command,
I did manage to get a clean download of the U18_V2.4.zip , (357.8 meg) to the phone but not sure about the phone to watch upload as it auto reboots and crashes in the recovery flash mode.
the USMART/update/ folder on the watch is where the phone transfer's the update to
the /bluetoothConnect/downlown/ folder is where the phone (throught USMART) saves the update

https://www.dropbox.com/s/c2191tq3xt8ii48/U18_V2.3.zip?dl=0

https://dl.dropboxusercontent.com/u/27107959/U18_V2.4.zip

https://dl.dropboxusercontent.com/u/27107959/usmart-v1.4.apk
Gerry
 
Last edited:

the steve

Senior Member
Aug 9, 2015
277
72
I have a U18 as well, same problems, as posted above.

I have accessed recovery with adb reboot recovery, there is no options menu
I have accessed fastboot with adb reboot bootloader there is no options menu
I have also managed shell command,
I did manage to get a clean download of the U18_V2.4.zip , (357.8 meg) to the phone but not sure about the phone to watch upload as it auto reboots and crashes in the recovery flash mode.
the USMART/update/ folder on the watch is where the phone transfer's the update to
the /bluetoothConnect/downlown/ folder is where the phone (throught USMART) saves the update

https://dl.dropboxusercontent.com/u/27107959/U18_V2.4.zip

Gerry

Good idea to try adb, I didn't know if smartwatches would be adb devices. Is it an official OTA update you want to install or a custom rom? Maybe you need to install custom recovery first, have you tried twrp recovery?
 

ghenton

Member
Feb 12, 2011
21
2
Grindrod
it is locked down quite tightly

Good idea to try adb, I didn't know if smartwatches would be adb devices. Is it an official OTA update you want to install or a custom rom? Maybe you need to install custom recovery first, have you tried twrp recovery?


This is an official OTA update, takes 2-3 hours to download to the phone which then uploads to the watch, which reboots into recovery and then crashes in a few seconds. I have tried to root the device without success so far. There is an update to USMART the phone app that controls the whole process but it will not even download yet. I have a ticket in with support at bestgear but I have open tickets that go back months without any action. They confirm that they have received the initial ticket but then all goes quite.

Gerry
 

the steve

Senior Member
Aug 9, 2015
277
72
wtf?! 2-3 hours? I didn't expect that with an official OTA update... Has there be any warning during the installation, that it will last that long? Otherwise it doesn't seem right. Have you tried a factory reset in the recovery and run the update again?
Before you start any further experiments be sure you want to keep the watch. You didn't root or flash custom roms yet, so you still have warranty and could give it back.

---------- Post added at 11:03 PM ---------- Previous post was at 10:35 PM ----------

If you still want to root and install playstore on your watch, maybe this video might help you. It is not exactly your watch, but since you don't have to flash anything it might work for your device to.
https://www.youtube.com/watch?v=jAsO2hfAcn0
Notice: I don't take any responsibility if you brick your watch!
 
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ghenton

Member
Feb 12, 2011
21
2
Grindrod
wtf?! 2-3 hours? I didn't expect that with an official OTA update... Has there be any warning during the installation, that it will last that long? Otherwise it doesn't seem right. Have you tried a factory reset in the recovery and run the update again?
Before you start any further experiments be sure you want to keep the watch. You didn't root or flash custom roms yet, so you still have warranty and could give it back.

The update is 357.8 meg so it will take time, once to the phone and again from the phone to the watch, this take the longest and most likely to fail as the Bluetooth can be a little flaky. There is no warning on time but there is a progress bar. There is an option to "reset watch" in "Settings" this does a reboot/wipe/restore through recovery.

---------- Post added at 08:45 PM ---------- Previous post was at 08:40 PM ----------

If you still want to root and install playstore on your watch, maybe this video might help you. It is not exactly your watch, but since you don't have to flash anything it might work for your device to.
https://www.youtube.com/watch?v=jAsO2hfAcn0
Notice: I don't take any responsibility if you brick your watch!

I had come across this video but it did not work. I have installed the playstore apk but it will not run. Amazon store does install and will run. One of the problems is not many apps will format for the small screen and you cannot gain access to the install buttons as they are off screen.
 

kctx7

Member
Jun 5, 2011
27
4
Trying to apply U18_V2.4.zip

I'm in the same boat as others... hoping to try out the U18 V2.4 update, but the OTA update always fails.

I have accomplished getting the V1.4 phone app installed and working. It failed to download for me, like some others have reported, but I was able to extract the APK from the U18_V2.4.zip file, and sideloaded U18_V2.4/SYSTEM/data/usmart.apk from the zip file onto my phone.

Now, here's some more clues on the failure of the OTA update on the watch. Look at /sdcard/logs/recovery/20150820_171751.log...

Here's an excerpt:

----------------------------------------------------------
update_package = /sdcard/USMART/update//U18_V2.4.zip
I:Finding update package...
I:Update location: /sdcard/USMART/update//U18_V2.4.zip
I:eek:pening update package...
Installing update...
The update.zip is corrupted
Installation aborted.
write result : MOTA_RESULT_FILE
write result : remove_mota_file
----------------------------------------------------------

Looking for the strings "The update.zip is corrupted" and "write result : MOTA_RESULT_FILE" leads me to this webpage with the source of our recovery.c....

on github: andr3jx MTK6577 blob master bootable recovery recovery.c

Sorry I can't post a proper URL yet.

---------- Post added at 10:03 AM ---------- Previous post was at 09:41 AM ----------

Having read some more source code on github, one reason why "The update.zip is corrupted" would end up in the log is that the file is improperly signed. Ugh. This may be a dead end until the manufacturer fixes the "corrupt" update.
 
Last edited:
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the steve

Senior Member
Aug 9, 2015
277
72
I had come across this video but it did not work. I have installed the playstore apk but it will not run. Amazon store does install and will run. One of the problems is not many apps will format for the small screen and you cannot gain access to the install buttons as they are off screen.

Is it possible to login your google account with the watch? Then you could perhaps chose the apps in Playstore on your Computer and then chose to install on the watch. Or have you tried already?
 

kctx7

Member
Jun 5, 2011
27
4
The web address for the update server...

I still can't post an URL, but point your browser to 120.25.243.229 slash u18.

This is where the phone app looks for updates!

---------- Post added at 11:24 PM ---------- Previous post was at 10:30 PM ----------

I believe this is the manufacturer's website: www wtech cc slash Bluetooth-Smart-Watch_c34.html
 
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  • 3
    I try to make it compatible with the app and also android wear
    1
    wtf?! 2-3 hours? I didn't expect that with an official OTA update... Has there be any warning during the installation, that it will last that long? Otherwise it doesn't seem right. Have you tried a factory reset in the recovery and run the update again?
    Before you start any further experiments be sure you want to keep the watch. You didn't root or flash custom roms yet, so you still have warranty and could give it back.

    ---------- Post added at 11:03 PM ---------- Previous post was at 10:35 PM ----------

    If you still want to root and install playstore on your watch, maybe this video might help you. It is not exactly your watch, but since you don't have to flash anything it might work for your device to.
    https://www.youtube.com/watch?v=jAsO2hfAcn0
    Notice: I don't take any responsibility if you brick your watch!
    1
    Trying to apply U18_V2.4.zip

    I'm in the same boat as others... hoping to try out the U18 V2.4 update, but the OTA update always fails.

    I have accomplished getting the V1.4 phone app installed and working. It failed to download for me, like some others have reported, but I was able to extract the APK from the U18_V2.4.zip file, and sideloaded U18_V2.4/SYSTEM/data/usmart.apk from the zip file onto my phone.

    Now, here's some more clues on the failure of the OTA update on the watch. Look at /sdcard/logs/recovery/20150820_171751.log...

    Here's an excerpt:

    ----------------------------------------------------------
    update_package = /sdcard/USMART/update//U18_V2.4.zip
    I:Finding update package...
    I:Update location: /sdcard/USMART/update//U18_V2.4.zip
    I:eek:pening update package...
    Installing update...
    The update.zip is corrupted
    Installation aborted.
    write result : MOTA_RESULT_FILE
    write result : remove_mota_file
    ----------------------------------------------------------

    Looking for the strings "The update.zip is corrupted" and "write result : MOTA_RESULT_FILE" leads me to this webpage with the source of our recovery.c....

    on github: andr3jx MTK6577 blob master bootable recovery recovery.c

    Sorry I can't post a proper URL yet.

    ---------- Post added at 10:03 AM ---------- Previous post was at 09:41 AM ----------

    Having read some more source code on github, one reason why "The update.zip is corrupted" would end up in the log is that the file is improperly signed. Ugh. This may be a dead end until the manufacturer fixes the "corrupt" update.
    1
    The web address for the update server...

    I still can't post an URL, but point your browser to 120.25.243.229 slash u18.

    This is where the phone app looks for updates!

    ---------- Post added at 11:24 PM ---------- Previous post was at 10:30 PM ----------

    I believe this is the manufacturer's website: www wtech cc slash Bluetooth-Smart-Watch_c34.html
    1
    Can you upload pictures, becouse i need to see what have to solder

    Sorry for my english, i am from argentina

    Hello,
    Be sure to have enough solder skills as it's a very little solder and DON'T touch at the small resistor at the bottom of the circle with solder iron tip (because it can be accidentaly unsoldered an broke :( )
    Try repair at your own risk
    On the picture you can see a red circle it's where the center of the antenna connector is soldered (if i'm not wrong, i have tested with a multimeter in resistor mode on the stock unsoldered antenna and only the center were connected to the strap antenna) and it's here (the little square ) where i have soldered a tinny wire to connect to the strap antenna and it gave me good bt/wifi/gps signal :)