Problems in LTE activation (different regions) - Samsung Galaxy Watch

Hello friends,
I'm from Brazil and I bought a LTE Galaxy Watch in Germany, exactly the same version (Sm-R805F) used in Brazil. However when I went to my mobile company to activate the e-sim it was not possible. When the system ask to read a QR code, in the mobile networks' activation process, a message of error appears ("It's not possible to conect this mobile"). Does anyone know why and how to fix it?

Can you check this Code...
Code:
*#1234#
Seems DIFFERENT Software crap exists... so different Profiles...
Code:
OXX
OXA
Check your CSC ...
OXA could be inside German Version... and OXX is maybe for Brazil...
Best Regards

adfree said:
Can you check this Code...
Code:
*#1234#
Seems DIFFERENT Software crap exists... so different Profiles...
Code:
OXX
OXA
Check your CSC ...
OXA could be inside German Version... and OXX is maybe for Brazil...
Best Regards
Click to expand...
Click to collapse
Thank you very much!
I did it and the CSC is OXA (German version).
How can I change it to OXX?
PS: I did as they recomended here (https://forum.xda-developers.com/smartwatch/gear-s3/guide-how-to-change-gear-s3-r760-csc-t3784226 ) but theres no Brazilian code nor OXX.

OXX and OXA are """group"""
OXA contains minimum DBT CSC... for Germany
You can NOT change from OXA to OXX... because the config files not inside...
Your Link shows only way to change existing CSC inside flashed CSC file...
Example...
I have Firmware files... from OXX region...
Code:
CSC_[B]OXX[/B]_R805FOXX1BRI4_usr.tar.md5
You can unpack and extract with 7Zip... csc.img file.
Folder preconfig have 8 folderS with 7 CSC... DEF means Default IMHO...
Code:
BRI
TGY
VAU
XNZ
XSA
XSG
XSP
XSP is Singapore...
For the others I am tooo lazy... forgotten... use Google...
I have NO idea if it is an good idea to try to flash with netOdin such CSC files... or complete Firmware of OXX region.
Samsungs funny Security...
Best Regards
Edit 1.
I have tried to identify Brzil via Google search...
For me it looks no CSC inside for Brazil...
I have NO idea if SM-R805F is for Brazil market...
Edit 2.
Okidoki... Google search leads to this:
https://www.samsung.com/br/support/model/SM-R805FZSAZVV/
So looks like exists for Brazil... and you can see Sales Code ZVV it is in Product Code...
Code:
SM-R805FZSA[B]ZVV[/B]
IMHO 3 region groups... OXX OXA and ?
Firmware for Brazil seems not leaked... with ZVV inside...
Edit 3.
Firmware for SM-R805F for Brazil looks like this:
Code:
R805FXXU1CRK7/R805F[B]OWO[/B]1CRK7/R805FXXU1CRK7
So OWO is Region Code... for Brazil...
IMHO OWO package have ZVV Sales Code/CSC inside... for Brazil.
Edit 4.
My fault...
Code:
R805FXXU1DSC7_Tizen_4File_Multi CSC ([B]OWO[/B]).rar
Leaked and available...
But still no idea if this helps you... because dangerous to flash... Sams..g Security could prevent success...

adfree said:
Edit 4.
My fault...
Code:
R805FXXU1DSC7_Tizen_4File_Multi CSC ([B]OWO[/B]).rar
Leaked and available...
But still no idea if this helps you... because dangerous to flash... Sams..g Security could prevent success...
Click to expand...
Click to collapse
Hi,
Can you list the available CSC's within the OWO version ?
I wasn't able to find it for download to check by myself..

@Nocturney
Region OWO Firmware contains these CSC:
Code:
COM
ZTA
ZTO
ZVV
Best Regards

I've been reading the post, but I'm a little lost. I do not know what to do. I have a R815 Vodafone Germany version, and I want to activate it for movistar Spain, but I receive the error "It's not possible to conect this mobile". The data of my watch are the following:
AP: R815FXXU1ARH5
CP: R815FXXU1ARH5
CSC: R815FOXA1ARH5
With the SDB utility I have accessed a hidden menu on the watch and I changed the original CSC VD2 to XEC, or at least I thought so ... I think VD2 is Vodafone Germany, and XEC is Movistar Spain (the company that I have on my mobile phone). Samsung Pay works, but LTE is impossible to configure ("It's not possible to conect this mobile")
It is possible to get a different firmware and flash it?... or how can I get to configure an esim (lte) from movistar españa?

adfree said:
@Nocturney
Region OWO Firmware contains these CSC:
Code:
COM
ZTA
ZTO
ZVV
Best Regards
Click to expand...
Click to collapse
Awesome, Thanks for the info

Hey guys, I was reading this post and I have a problem a little different of you.
I bought a Galaxy Watch from The USA, LTE version (R805U) but I live in Brazil, I went to the phone company (VIVO) to try able the LTE (eSim) function but they said to me that it is impossible because only the R805F works here. My question is. Can I change the firmeware from 805U to 805F and it will works LTE here ?

secawan said:
I've been reading the post, but I'm a little lost. I do not know what to do. I have a R815 Vodafone Germany version, and I want to activate it for movistar Spain, but I receive the error "It's not possible to conect this mobile". The data of my watch are the following:
AP: R815FXXU1ARH5
CP: R815FXXU1ARH5
CSC: R815FOXA1ARH5
With the SDB utility I have accessed a hidden menu on the watch and I changed the original CSC VD2 to XEC, or at least I thought so ... I think VD2 is Vodafone Germany, and XEC is Movistar Spain (the company that I have on my mobile phone). Samsung Pay works, but LTE is impossible to configure ("It's not possible to conect this mobile")
It is possible to get a different firmware and flash it?... or how can I get to configure an esim (lte) from movistar españa?
Click to expand...
Click to collapse
Is not to you to do'it...
You need to call the operatório, in this case, Movistar and subscribe for the service and they activate the eSim...
Sent from my Samsung SM-G975F using XDA Labs

Hi had same problem
Hello mate
I bought Samsung Galaxy watch when I was on holidays in Greece as in UK the LTE version was only with contract on EE. As I'm using Vodafone UK, I got the Qr Code for the esim but Samsung neither Vodafone could help me to make it work. Finally I make It work but my self, because my Samsung Galaxy watch is from Greek region I try to activate my Vodafone uk esim with a Greek sim network in my mobile device and it's worked perfectly, even when I put back my Vodafone uk sin on my mobile.
Hope that helps you.

MrNtrev said:
Hello mate
I bought Samsung Galaxy watch when I was on holidays in Greece as in UK the LTE version was only with contract on EE. As I'm using Vodafone UK, I got the Qr Code for the esim but Samsung neither Vodafone could help me to make it work. Finally I make It work but my self, because my Samsung Galaxy watch is from Greek region I try to activate my Vodafone uk esim with a Greek sim network in my mobile device and it's worked perfectly, even when I put back my Vodafone uk sin on my mobile.
Hope that helps you.
Click to expand...
Click to collapse
Hi, could you elaborate on how you did that? I want to buy the silver LTE version from Hong Kong because that colour is not sold in Singapore, and it would be great if I could get the LTE working.

Rbs_fael said:
Hey guys, I was reading this post and I have a problem a little different of you.
I bought a Galaxy Watch from The USA, LTE version (R805U) but I live in Brazil, I went to the phone company (VIVO) to try able the LTE (eSim) function but they said to me that it is impossible because only the R805F works here. My question is. Can I change the firmeware from 805U to 805F and it will works LTE here ?
Click to expand...
Click to collapse
Sou do Brasil tambem e estou com o mesmo problema e duvida. Vocë conseguiu resolver?

Related

Mobile network not available

Hi everyone,
Got the above message on a Galaxy Y GT-S5360 in the UK.
Always just used it as an MP3 player so never used it to make calls, etc. Was running Jellyblast V3 previously (had no network on that either) but decided to return to stock and use the phone.
Flashed S5360_XXLA2_OXXLA2_XXLA2_by_Doky.zip via ODIN so now have the following:
PDA: S5360XXLA2
PHONE: S5360XXLA2
CSC: S5360XXLA2
Android version: 2.3.6
Baseband version: S5360XXLA2
I’ve looked on XDA and throughout the internet but can’t find an answer. I am probably making a silly mistake. Not had this problem before with a long time flashing on my S2
Any ideas?
Thank you
Tim
Maybe you don't have a sim card? Haha
From: Somewhere In Neverland
Timbop37 said:
Hi everyone,
Got the above message on a Galaxy Y GT-S5360 in the UK.
Always just used it as an MP3 player so never used it to make calls, etc. Was running Jellyblast V3 previously (had no network on that either) but decided to return to stock and use the phone.
Flashed S5360_XXLA2_OXXLA2_XXLA2_by_Doky.zip via ODIN so now have the following:
PDA: S5360XXLA2
PHONE: S5360XXLA2
CSC: S5360XXLA2
Android version: 2.3.6
Baseband version: S5360XXLA2
I’ve looked on XDA and throughout the internet but can’t find an answer. I am probably making a silly mistake. Not had this problem before with a long time flashing on my S2
Any ideas?
Thank you
Tim
Click to expand...
Click to collapse
flash the correct csc, also try the SIM on other mobile
SaketJoshi said:
flash the correct csc, also try the SIM on other mobile
Click to expand...
Click to collapse
Thanks for the reply. The SIM card is fine. Works on another phone. How do I know which is the correct CSC? I assumed the one that was flashed match the modem and PDA.
Thanks
Tim
Timbop37 said:
Thanks for the reply. The SIM card is fine. Works on another phone. How do I know which is the correct CSC? I assumed the one that was flashed match the modem and PDA.
Thanks
Tim
Click to expand...
Click to collapse
was the package you installed compatible with your country?
SaketJoshi said:
was the package you installed compatible with your country?
Click to expand...
Click to collapse
Yes. It appeared to be. One of the CSCs was for carphone warehouse (CPW) which is where the phone came from originally.
Thanks
Tim
Timbop37 said:
Yes. It appeared to be. One of the CSCs was for carphone warehouse (CPW) which is where the phone came from originally.
Thanks
Tim
Click to expand...
Click to collapse
S5360_XXLA2_OXXLA2_XXLA2
European multilanguage build.
based on: S5360XXLA2_S5360OXXLA2_RST_S5360XXLA2_HOME.tar.md5
ro.build.date=Wed Jan 11 13:58:09 KST 2012
Supported languages:
XX = de,en,es,fr,hu,it,nl,pt(cs,da,el,fi,no,pl,sl,sv,tr)
Included CSCs: (Default is XEU)
ATO AUT COS CPW CYO CYV EIR EUR FOP ITV MOO PAN PHE SUW TPH XEF XEH XEO XEU XEZ XSK
After the flash, set your country/provider in dialer *#272*[yourIMEI]# (-> It will wipe your data, and rebrand the phone to specific country/carrier)
This build does not contains any provider specific bloatware.​
is this the one you flashed? it says something you have to do after flashing. did you do that?
SaketJoshi said:
S5360_XXLA2_OXXLA2_XXLA2
European multilanguage build.
based on: S5360XXLA2_S5360OXXLA2_RST_S5360XXLA2_HOME.tar.md5
ro.build.date=Wed Jan 11 13:58:09 KST 2012
Supported languages:
XX = de,en,es,fr,hu,it,nl,pt(cs,da,el,fi,no,pl,sl,sv,tr)
Included CSCs: (Default is XEU)
ATO AUT COS CPW CYO CYV EIR EUR FOP ITV MOO PAN PHE SUW TPH XEF XEH XEO XEU XEZ XSK
After the flash, set your country/provider in dialer *#272*[yourIMEI]# (-> It will wipe your data, and rebrand the phone to specific country/carrier)
This build does not contains any provider specific bloatware.​
is this the one you flashed? it says something you have to do after flashing. did you do that?
Click to expand...
Click to collapse
Yes, I did. I tried with the default first for Europe (EUR) then CPW. It then rebooted to the Android setup screen but I still had no network.
Thanks for your help. I appreciate it.
Tim
Timbop37 said:
Yes, I did. I tried with the default first for Europe (EUR) then CPW. It then rebooted to the Android setup screen but I still had no network.
Thanks for your help. I appreciate it.
Tim
Click to expand...
Click to collapse
the correct method is *#272*imei#
p.s. you can get the imei by dialling *#06#
SaketJoshi said:
the correct method is *#272*imei#
p.s. you can get the imei by dialling *#06#
Click to expand...
Click to collapse
Tried it again using CPW, XEU and EUR, without success. I have used the correct method and entered the correct imei.
Regards
Tim
Timbop37 said:
Tried it again using CPW, XEU and EUR, without success. I have used the correct method and entered the correct imei.
Regards
Tim
Click to expand...
Click to collapse
where did you buy the phone? in uk or outside?
SaketJoshi said:
where did you buy the phone? in uk or outside?
Click to expand...
Click to collapse
My father-in-law got it from Carphone Warehouse in Chester in the UK about a year or so ago.
He used it for a while with an Orange PAYG SIM then gave it to me. I put another Orange SIM in it but never used it as a phone and flashed a custom ROM immediately. I played a lot of music on it and have been trying to get a network on it. I have tried the Orange SIM I put in it and also an O" PAYG SIM which I bought yesterday. Both show no network available, whatever I dial.
Thanks again
Tim
Timbop37 said:
My father-in-law got it from Carphone Warehouse in Chester in the UK about a year or so ago.
He used it for a while with an Orange PAYG SIM then gave it to me. I put another Orange SIM in it but never used it as a phone and flashed a custom ROM immediately. I played a lot of music on it and have been trying to get a network on it. I have tried the Orange SIM I put in it and also an O" PAYG SIM which I bought yesterday. Both show no network available, whatever I dial.
Thanks again
Tim
Click to expand...
Click to collapse
well then contact the network customer service
Sir, Flash a good old stock firmware not the newests . Also try to change the kernel .
Sent from my GT-S5360 using Tapatalk 2
Its happening in europe all day, I cant get into detail but the Sun is whats causing it. Soft reboot/or flight mode ur phone couple times:sly:
Sent from my GT-S5360 using xda premium

Galaxy active 2 Canada firmware

Wondering if anyone knows where I can get r825w firmware for canada? My watch is Geo locked to the US and so I can't set up LTE. Any help much appreciated!! Thank you!! ?
Are you sure SM-R825W exists?
If I understand you correct... You have SM-R825U for USA...
I found only SM-R825F with XAC Sales Code aka CSC:
Code:
R825FXXU1ASI8/R825F[B]OYV[/B]1ASI8/R825FXXU1ASI8
this is inside OYV region package...
Best Regards
adfree said:
Are you sure SM-R825W exists?
If I understand you correct... You have SM-R825U for USA...
I found only SM-R825F with XAC Sales Code aka CSC:
Code:
R825FXXU1ASI8/R825F[B]OYV[/B]1ASI8/R825FXXU1ASI8
this is inside OYV region package...
Best Regards
Click to expand...
Click to collapse
I'll look for that package and flash it, thanks! ?
I'll look for that package and flash it, thanks!
Click to expand...
Click to collapse
If you have SM-R825U...
This is NO good idea to flash WRONG Firmware from SM-R825F.
Only if your Goal is to kill your device... and you like adventures with Solder iron...
https://forum.xda-developers.com/sm...axy-watch-active-2-44mm-sm-r820-odin-t4009587
Best Regards
adfree said:
If you have SM-R825U...
This is NO good idea to flash WRONG Firmware from SM-R825F.
Only if your Goal is to kill your device... and you like adventures with Solder iron...
https://forum.xda-developers.com/sm...axy-watch-active-2-44mm-sm-r820-odin-t4009587
Best Regards
Click to expand...
Click to collapse
So Does this mean there is no way to flash canadian CSC on this device?
Feel free to ignore my warnings...
Find your own solution.
At your own risk!
Best Regards
I was directly engaging your warning with that question. It's ok if you don't know
I'd also like to know if there is any possibility... Just bought a SM-R825U only to find out it can't be used in Canada. UGH!
viffer_man said:
I'd also like to know if there is any possibility... Just bought a SM-R825U only to find out it can't be used in Canada. UGH!
Click to expand...
Click to collapse
I think the short answer is no. I haven't been able to find anyone who has found a Canadian sales code that works on US version firmware, so no lte or Samsung pay. I ended up selling mine and getting one through Telus, but I miss the stress monitor
https://forum.xda-developers.com/showpost.php?p=81915455&postcount=29
https://forum.xda-developers.com/showpost.php?p=81915515&postcount=31
Not tested nor confirmed...
Only as Info.
OWN RISK!
Best Regards
adfree said:
... have SM-R825U for USA...
this is inside OYV region package...
Click to expand...
Click to collapse
Hi to All !
Please @adfree ! Can you help me ? I speak only a little english and all is too difficult to understand.
I´m in Argentina with an Active 2 SM-R825U (Tizen 5.5.0.2 / Build Number: R825USQU1CUD1 ) that cannot see the movil network. Company says I should have bought SM-R825 ( without U , my fault ) but confused me saying american models. After my bought said Mexico and Canada models )
Do you think that the following firmware may be a correct one to change to canadian region ? Or what can I do ?
R825FXXU1BTJ1 Tizen 5.5 firmware details
AP_R825FXXU1BTJ1_usr.tar.md5
BL_R825FXXU1BTJ1_usr.tar.md5
CP_R825FXXU1BTJ1_CL1701429_QB17046842_SIGNED.tar.md5
CSC_OYV_R825FOYV1BTJ1_usr.tar.md5
R825FXXU1BTJ1.zip
MD5 : ca38129bf55ebb80a87a9f0c5b003215
Build Number : R825FXXU1BTJ1
Tizen version : Tizen 5.5.0.1
Release Date : 2020-10-14
• Improved GPS accuracy and connection
• Improved system stability and reliability
Thanks a lot in advance !
( I don´t understand what it´s mean :
I found only SM-R825F with XAC Sales Code aka CSC:
Code:
R825FXXU1ASI8/R825F[B]OYV[/B]1ASI8/R825FXXU1ASI8
)

France Samsung Galaxy Watch Active 2 use E-Sim in Germany

Hello today i bought a Samsung Galaxy Watch Active 2 4G it is a France device, in France they use the frequences LTE 800 and LTE1800 in Germany too.
It is possible to get running a German E-Sim on it ? Or Flash a German ROM or anything ?
Kind regrads from Germany !
@Son.y
If you want write me a personal message ... then we can try it in German ...
If you want..
Wenn Du willst schreib mir eine Persönliche Nachricht... dann können wir es in dt. Sprache versuchen...
Wenn Du willst...
Best Regards
I'm kind of in the same boat. I have a German watch 46mm lte and live in Belgium. I want to activate orange esim (I already have a qr code) but the wearable app doesn't give me an option to scan a qr code. I have a proximus, telenet and orange simcard to try in my s10+ but none of them gives me the scan option in wearable app
And to answer OP question, the European lte watch models should all be compatible cross country, all lte bands are supported
@glenner05
Please give more details...
Enter this code like you would call someone...
Code:
*#1234#
And write visible result...
So we can see Firmware details...
Thanx.
Best Regards
I have the mobile option in the wearable app but I always get the error 'this operator is not supported on your watch ' and I don't get the qr option.
I'm sure if I could get a german simcard and put it in my phone I would get to the qr scanning option, then I would just scan my orange esim qr code and after that use my belgian sim again . Anybody have a spare german simcard by any chance
Code:
R805FXXU1FSL3/R805F[B]OXA[/B]1FSL3/R805FXXU1FSL3
According to your Photo... thanx... you are not exact in same boat...
Because your device is SM-R805F...
IMHO this simplify the problem with CSC change... if mandatory...
IMHO if CSC change is solution... then your way is to downgrade to older Firmware to use SDB Tool for easier CSC change like this method:
https://forum.xda-developers.com/showpost.php?p=76077212&postcount=1
Code:
launch_app csc-manager.csc-pre-configuration
Older Firmwares... Stock Firmware of SM-R805F for region OXA are here:
https://forum.xda-developers.com/smartwatch/galaxy-watch/update-sm-r805f-esd8-t3935832
Be carefully... you need OXA...
Summary..
You think you have MAYBE DBT CSC...
This idea could be wrong... anyway... it is possible to be sure which CSC is set as active...
Anyway...
You wish to use CSC from Belgium...
...and live in Belgium
Click to expand...
Click to collapse
Please use Google to identify CSC for Belgium...
I have NO idea yet... and I am too lazy to search with Google.
Best Regards
adfree said:
According to your Photo... thanx... you are not exact in same boat...
Because your device is SM-R805F...
IMHO this simplify the problem with CSC change... if mandatory...
IMHO if CSC change is solution... then your way is to downgrade to older Firmware to use SDB Tool for easier CSC change like this method:
https://forum.xda-developers.com/showpost.php?p=76077212&postcount=1
Older Firmwares... Stock Firmware of SM-R805F for region OXA are here:
https://forum.xda-developers.com/smartwatch/galaxy-watch/update-sm-r805f-esd8-t3935832
Be carefully... you need OXA...
Summary..
You think you have MAYBE DBT CSC...
This idea could be wrong... anyway... it is possible to be sure which CSC is set as active...
Anyway...
You wish to use CSC from Belgium...
Please use Google to identify CSC for Belgium...
I have NO idea yet... and I am too lazy to search with Google.
Best Regards
Click to expand...
Click to collapse
Csc for belgium is LUX
So you think if i manage (by downgrading) to change csc from DBT to LUX i might get the scanning option? Im a little afraid to try that because there are no lte watches sold in belgium, so normally there are no LUX lte watches. I could make the problem worse? And second i dont want to brick my device. I have experience with flashing before, i know odin and stuff but never flashed samsung watches before. I used to flash samsung phones a couple of years ago
So you think if i manage (by downgrading) to change csc from DBT to LUX i might get the scanning option?
Click to expand...
Click to collapse
I wrote you Private Message... to prevent Mod action... as I only found German hits... for search:
Code:
SM-R805F eSIM
Could be CSC change is not Holy Grail.. maybe... not tested not confirmed...
German Users fixed QR crap "adventure" ... by swap SIM card in Phone...
About LUX as CSC...
DBT German:
http://fota-cloud-dn.ospserver.net/firmware/DBT/SM-R805F/version.xml
LUX Belgium... but empty:
http://fota-cloud-dn.ospserver.net/firmware/LUX/SM-R805F/version.xml
https://doc.samsungmobile.com/SM-R805F/LUX/doc.html
I will check CSC of OXA package...
Yes it is inside OXA Firmware package...
But not sure if this fix your problem...
You have to try...
Best Regards
Edit 1.
Code:
<Country>[B][COLOR="Red"]Luxembourg[/COLOR][/B]</Country>
<CountryISO>LU</CountryISO>
<Region>EUR</Region>
<SalesCode>[COLOR="Green"][B]LUX[/B][/COLOR]</SalesCode>
<NbNetworkInfo>1</NbNetworkInfo>
<NetworkInfo>
<MCCMNC>20601</MCCMNC>
<NetworkName>[B]Proximus[/B]</NetworkName>
<NWID>NW01053</NWID>
Taken from Firmware file CSC.img.. extracted with 7Zip tool:
Code:
CSC_[B]OXA[/B]_R805F[B]OXA[/B]1ESD8_usr.tar

Recommended Firmware for Unbranding a Samsung Galaxy S20+ (SM-G985F)

Hello community!
I recently bought a Samsung Galaxy S20+ (SM-G985F) which is carrier branded and sim locked. I am looking to remove the carrier branding by using a unbranded firmware. I am trying to find an unbranded firmware that will not affect the functionalities of the phone ( VoLTE, VoWiFi etc..) . Would this be done by finding a firmware with same PDA but different CSC?
Current Branded Firmware:
Version G985FXXU3ATG4 / G985FOWA3ATG4 / G985FXXU3ATG4
Product Code: PGU
Would this firmware work?
Product code LUX
PDA G985FXXU3ATG4
CSC G985FOXM3ATG9
Thanks in advance for your help!
@servenaya
if you have a sim card of Guatemala and you want to keep VoLTE, VoWiFi etc.. for this country
install Version PDA G985FXXU3ATG4-CSC G985FOXM3ATG9
and change your CSC to GTO ( with préconfiguration for TIGO_CGU , PCW_PA and Claro_DR )
LUX have only préconfiguration for Luxemburg ( Proximus , POST , Tango , Telenet , Orange B and LUX )
regards
yakapa40 said:
@servenaya
if you have a sim card of Guatemala and you want to keep VoLTE, VoWiFi etc.. for this country
install Version PDA G985FXXU3ATG4-CSC G985FOXM3ATG9
and change your CSC to GTO ( with préconfiguration for TIGO_CGU , PCW_PA and Claro_DR )
LUX have only préconfiguration for Luxemburg ( Proximus , POST , Tango , Telenet , Orange B and LUX )
regards
Click to expand...
Click to collapse
@yakapa40, thank you! This information is very helpful. I do have a Claro Guatemalan sim and even though the carrier does not support VoLTE, or VoWifi, I would like to keep this features in case they implement them in the future. I did find a firmware with the recommended PDA and CSC (Country South East Europe, Product code: SEE, PDA: G985FXXU3ATG4, CSS: G985FOXM3ATG9). Would this firmware work? From what understand, I would have to first flash this firmware, then change de CSC with Samkey to GTO and lastly, factory restore the phone. Is this correct?
Also, would you recommend using Samkey to perform a carrier unlock before changing the CSC or could I do it later on? I read that Samkey only works for phones that dont ask for unlock code. Mine does ask for a code when I insert another carrier's sim.
Thanks in advance for your help!
save all your data
install new firmware
you have a free apk here to change the CSC:
https://forum.xda-developers.com/showpost.php?p=82858645&postcount=37
yakapa40 said:
save all your data
install new firmware
you have a free apk here to change the CSC:
https://forum.xda-developers.com/showpost.php?p=82858645&postcount=37
Click to expand...
Click to collapse
@yakapa40, Thank you once again. Just want to make sure that the firmware mention before is the best one to use? I have attached the software information from my phone. Please let me know your opinion.
yes all is ok with your firmware
PGU:
GTO:
yakapa40 said:
yes all is ok with your firmware
PGU:
GTO:
Click to expand...
Click to collapse
@yakapa40 Thank you for your help. You are extremely knowledgeable on this topic! To be honest, I just realize how little I know about flashing even though I've been doing it since 2012. I feel like I understand firmware flashing less than I did before.
I just have a last question. If I flash the firmware with a CSC NEE, and than do the CSC change to GTO, which CSC will be used for future OTA updates? What I mean is, if there is a new NEE firmware will I get it, or will I have to wait for a new GTO update? Sorry, I am little confused with all of this.
G985F OXM is a multi CSC so if you flash the firmware with a CSC NEE , you will get XEF CSC by default
, and when you change to GTO you will get GTO OTA updates
https://forum.xda-developers.com/galaxy-s20/how-to/s20-g985f-firmwares-t4060279
yakapa40 said:
G985F OXM is a multi CSC so if you flash the firmware with a CSC NEE , you will get XEF CSC by default
, and when you change to GTO you will get GTO OTA updates
https://forum.xda-developers.com/galaxy-s20/how-to/s20-g985f-firmwares-t4060279
Click to expand...
Click to collapse
@yakapa40, I was finally able to flash the phone. I followed the steps and got the GTO CSC and the unbranded firmware working! Thank you for helping me throughout the whole process. The only down side was that I still lost the VoLTE and VoWifi options. When I look at the Sim Card Status menu, the IMS registration Status is "not registered". :crying:

Question csc not changed please help

Hi everyone
I flashed the Egypt ROM on the S22 phone from ksa, and after rebooting I looked at the software information, it is still ksa
Knowing that I put two SIM cards from my country, Egypt, in the phone during the flashing and after booting, and the phone wasn't change the csc to Egypt ,
In addition, the CSC of KSA and EGY is the same But I want to enable call recording supported by csc egy
How is this done? I apologize for the delay and thank you
Anyone help please ?
Use samfw tool to change csc.
mohitgalaxy3 said:
Use samfw tool to change csc.
Click to expand...
Click to collapse
Even both of csc is the same code ? Mention attached

Categories

Resources