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/gea...-r770-t3646789 I found this quote from xedaman about BokkieAndijk:
... 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!
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?