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adfree

Senior Member
Jun 14, 2008
10,090
5,927
Samsung Galaxy Watch 4
Google Pixel Watch
GWA2 solved...

SM-R820 / SM-R830 USB Pinout:
https://forum.xda-developers.com/showpost.php?p=81545171&postcount=30

Service Manual is here:
https://forum.xda-developers.com/showpost.php?p=81485955&postcount=20


Maybe someone have an idea how to connect solderless... without open... :eek: :D

I have few ideas... but no GWA2. :D :eek:

SM-R600
Service Manual is here:
https://forum.xda-developers.com/showpost.php?p=81532573&postcount=83

And funny... seems USB Pinout is visible inside... :rolleyes:
This time on 2 sites of board... :eek:

Best Regards
 

adfree

Senior Member
Jun 14, 2008
10,090
5,927
Samsung Galaxy Watch 4
Google Pixel Watch
SM-R500... Galaxy Watch Active...

Untested...
Own Risk!

Best Regards
 

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Jan 27, 2021
11
0
[QUOTE = "adfree, post: 76558349, membro: 1030585"]
Voltar para a tampa traseira do LTE SM-R765 ... SM-R775 ...
https://forum.xda-developers.com/showpost.php?p=73509091&postcount=7
https://forum.xda-developers.com/showpost.php?p=73517886&postcount=8


Talvez em vez de comprar ... talvez eu tente fazer conector caseiro ... : eek:

Memorando para mim ...

[CÓDIGO] Corresponder a Streichholz

2 mm x 2 mm

-----------------------
PIN Steckstift

Site redondo de 1 mm
1 mm x 1 mm outro local

-----------------------

cerca de 8 mm - furo de 9 mm

-----------------------
Hülse

1,5 mm [/ CODE]

O fósforo é muito grande e não cabe neste orifício minúsculo ...

2 mm também é grande demais para atingir o conector POGO ... parece menor ... 1,5?
:confuso:

Tenho poucas ideias ... : D

Depois mais ...

Enquanto isso, poucas fotos ...


Cumprimentos
[/CITAR]

Pode
Back to Rear Cover of LTE SM-R765... SM-R775...
https://forum.xda-developers.com/showpost.php?p=73509091&postcount=7
https://forum.xda-developers.com/showpost.php?p=73517886&postcount=8


Maybe instead buying... maybe I will try to make homemade connector... :eek:

Memo to me...

Code:
Match Streichholz

2 mm x 2 mm

-----------------------
PIN Steckstift

1 mm round site
1 mm x 1 mm other site

-----------------------

ca 8 mm - 9 mm hole

-----------------------
Hülse

1,5 mm

Match is too big and not fit in this tiny hole...

2 mm is also to big to hit POGO Connector... looks smaller... 1,5 ?
:confused:

I have few ideas... :D

Later more...

Meanwhile few Photos...


Best Regards

Friend, you were successful in this experiment
 

adfree

Senior Member
Jun 14, 2008
10,090
5,927
Samsung Galaxy Watch 4
Google Pixel Watch
Few years later... since successfully soldered wires to my SM-R732...

On Photo visible I ripped of 1 TP from Gear S2...

With dead SM-R770 no luck as it was dead dead... I bought it dead...


Now I bought dead dead SM-R870... GW4...

Before I will solder wires... to check if it is really dead dead dead.

I will try to check few ideas about solderless connection...

1 idea is to use the springe... for "stable" connection...

Later more... I need to hammer sägen und meisseln...

Best Regards
 

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adfree

Senior Member
Jun 14, 2008
10,090
5,927
Samsung Galaxy Watch 4
Google Pixel Watch
First attempt with dead dead SM-R870... but it is dead as no lifesign...

I was able to use Keys to repair my other halfdead SM-R870...

Also Key from SM-R770 visible on Photo...

Only as info...

Best Regards

Edit 1.

Attached Photo from over User...
He was able to proper connect USB with SM-R860...

Photo is not from final result... he switched 2 wires...
 

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Last edited:

adfree

Senior Member
Jun 14, 2008
10,090
5,927
Samsung Galaxy Watch 4
Google Pixel Watch
Spent some time... to check few ideas to protect tiny wires from ripp off...

Not final... work in progress...


with my SM-R870... dead dead without function...

I hope to prevent accidents with my alive SM-R870...

Best Regards
 

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adfree

Senior Member
Jun 14, 2008
10,090
5,927
Samsung Galaxy Watch 4
Google Pixel Watch
Oh my god.

Seems I am able to do such bad Soldering ever and ever again...

Battery not charging... maybe because shortcircuit... not really sure yet...
Need to check...

But my "construct" was working. SM-R870.

White and green cable switched... hopefully visible in last Pic...


Now I have to charge with Back Cover... as my Battery empty...

Best Regards
 

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  • 3
    Dear friends,
    I found that the LTE connection is very useful when you have to leave your mobile somewhere and you can get calls and notifications through mobile connection.
    I bought a Gear S3 LTE (R765) from a Singapore site because in Italy it is not available.
    I sadly discovered that i couldn't register a TIM eSIM (Italian Mobile) because, while executing the registration process, I had the answer "...Can't connect to the server ...".
    So I kept reading around how to solve the problem...
    My first attempt was to flash a 765v hoping a different rom could help me in registering the italian eSIM on my device....: Yellow triangle brick!!!!!
    Thank to the senior member adfree I realized that I flashed a Version 2 Bootloader and I could not downgrade it back.
    I tried to flash another rom, a proper one for 765f, but with a BL ver.1 : brick again but in a different way: the device started with the starting screen (Gear s3 Frontier...) then it just seemed to switch off...
    Trying to enter again in the Odin menu ( home button for 8-9 sec - reboot - 3 times home button - download wireless )... it was just stuck in the Tizen logo.
    Here https://forum.xda-developers.com/gear-s3/how-to/rom-samsung-gear-s3-classic-sm-r770-t3646789 I found this quote from xedaman about BokkieAndijk:

    Quote:
    ... i found info how to get my S3 back to live again. If you have the same problems with your (bricked) S3 then go to download wirelessly mode en as soon as you see the flower then push the power button 2 seconds en let it go for 1 second, than push it again for 2 seconds en let it go for one and so on til you get him in to download wirelessly mode. May take some attempts but it saves my ass a few times.

    I did it and i worked fine!

    It gave me the opportunity to flash a custom rom from 765v. I thought that a custom rom would have been accepted from a V2 BL.... NOPE!

    Now I am stuck again: the divice boots but remains to the booting screen (Gear s3 Frontier...). I tried to enter in Odin menu and every thing works but download wireless: It remains stuck on the Tizen Logo.
    I tried to apply the same technique I used to unbrick it before but seems unuseful.

    So I decided to open the device and I discovered that , as adfree said a few times, just the LTE versions have a side pinout near the strap band.
    Opening the device I saw that the side pinout (5 pins) is connectd to the motherboard well known 5 pins.

    I am now posting here the pics of the device opened hoping someone can help me to unbrick the device explaining how to connect the s3 pinout to a pc to let me flash it with usb odin and downgrade the BL... OR, if someone knows how to unbrick the device with another button combination, please post it!

    Best Regards
    P.S.
    Opening the device I ruined screws and back cover, do anyone knows where to by a new backcover and some F**** (freaking) normal screws of that size?
    2
    @frs2308

    Thanx for info. :good:

    Only to be sure...
    You mean this connector from this Charger fits into the tiny hole inside Rear Case/Back Cover from SM-R765?

    It could be... the part number for the SM-R765 variants is:
    GH97-19294A
    Code:
    MEA REAR-SM-R765(BLK)
    46 $

    Now I need only confirmation... where to buy this...
    Or maybe sites with Pictures somewhere...

    I am from Germany...
    In german Ebay nearly never SM-R765 to buy...

    Also in my case toooo expensive... for only want Rear Cover/Back Case... :eek:

    Best Regards
    :confused:

    Yes, it fits all Gear S2 models (wifi version - you have to open back cover to see pins | LTE - same connector as on S3), and S3 LTE. The only thing - you'd have to carefully cut plastic on every side with a rasp, as it is slightly thicker. I did it, and it worked for me. Please see attachment images

    Also, very important to use full USB cable. I've tried with several cheap chinese micro usb, and it didn't work. Probably, because they do not have all wires inside. Gear S3 original (thick) works perfectly fine
    2
    Here i am.
    It took time but...
    I just soldered wires ( with a little help from my friends...:D) on my 765f as you can see from the pics below.
    I soldered the wires on the outside pinout of the watch.... I connected but usb port.... now I think I need your help.
    2
    USB Pinout GW4...

    Here my tested SM-R870...

    Best Regards
    2
    Strange...
    modules.img from SM-R765F 1AQA1 is only 5 MB and without 256 Byte Signature at the end of file...
    :confused:


    Anyway,

    Please try attached TAR file... unzip ZIP first...


    Flash only 1 file with Odin:
    test_v1_smR765F_moduleOnly_1AQA1.tar


    No need of screenshot, but Copy and Paste text output from Odin please... Example...
    Code:
    <ID:0/003> Added!!
    <ID:0/003> Odin engine v(ID:3.1203)..
    <ID:0/003> File analysis..
    <ID:0/003> SetupConnection..
    <ID:0/003> Initialzation..
    <ID:0/003> Get PIT for mapping..
    <ID:0/003> Firmware update start..
    <ID:0/003> SingleDownload.
    <ID:0/003> csc.img
    <ID:0/003> modules.img
    <ID:0/003> ramdisk-recovery.img
    <ID:0/003> ramdisk.img
    <ID:0/003> system-data.img
    <ID:0/003> user.img
    <ID:0/003> zImage
    <ID:0/003> zImage-recovery
    <ID:0/003> RQT_CLOSE !!
    <ID:0/003> RES OK !!
    <ID:0/003> Remain Port ....  0 
    <OSM> All threads completed. (succeed 1 / failed 0)
    <ID:0/003> Removed!!

    If flash success, then check Download Mode Screen... if Custom (Module) is gone or still present... I mean this... in first Photo:
    https://forum.xda-developers.com/showpost.php?p=73644320&postcount=16

    Thanx in advance.

    Best Regards


    done!
    flash succeded:

    <ID:0/003> Odin engine v(ID:3.1203)..
    <ID:0/003> File analysis..
    <ID:0/003> SetupConnection..
    <ID:0/003> Initialzation..
    <ID:0/003> Get PIT for mapping..
    <ID:0/003> Firmware update start..
    <ID:0/003> SingleDownload.
    <ID:0/003> modules.img
    <ID:0/003> RQT_CLOSE !!
    <ID:0/003> RES OK !!
    <ID:0/003> Removed!!
    <ID:0/003> Remain Port .... 0
    <OSM> All threads completed. (succeed 1 / failed 0)
    <ID:0/003> Added!!

    Custom (Module) is still present...