H3G firmware - Samsung Galaxy S8+ Questions & Answers

Ok so I have a unbranded s8+ with the xeu csc, as I wanted to enable volte and Wi-Fi calling as I am a three UK customer. I flashed the latest H3G firmware from three everything went fine but I can't send text messages due to the message centre having no smsc number it is also greyed out so I can't manually input the number myself, I could on xeu firmware. If anybody could help me it would be awesome thanks.

Did you factory reset the phone? you may need to flash the firmware again over the top.

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Anyway to change/pick csc

I have a VOD Uk device I flashed to BTU so it was unbranded. With the MM coming out I plugged into smartswitch to change back. All went fine however it selects SIM csc and not VOD as it is a multi csc. Now I can't use wifi calling with this csc. In tried multiple flashes and wiping cache and resets. I've even gone to the XEF rom and back and still get SIM csc when i flash it.
Is there any way of selecting the correct csc or editing the firmware without tripping Knox to just install the VOD csc.
Many thanks for your help.
I would also like to know if this can be done.:good:
jollyjester said:
I would also like to know if this can be done.:good:
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Click to collapse
I'm hoping there is a bug in smartswitch in relation to the Voda firmware as other country's like Voda Germany are restoring and getting SIM csc as well not the one specified in the restor
Smartswitch won't let me restore either, it give an error saying sm-g920f not compatible :crying:.
any of you folks got anywhere with this issue? I'm still stuck on SIM

WiFi calling gone in nougat beta?

On my G930f on BTU WiFi calling has gone for Vodafone UK. Yet the odd thing is if I put an EE SIM in it appears. Why would this be and is there a workaround?
Same for me. Would be really good if there is a workaround. Specially since i am currently in Europe.
slugger09 said:
On my G930f on BTU WiFi calling has gone for Vodafone UK. Yet the odd thing is if I put an EE SIM in it appears. Why would this be and is there a workaround?
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For me it was working.
I flashed the Android 7 ROM via ODIN but used the CSC from my country and provider (use the CSC_XX instead of HOME_CSC_XX to wipe the device and set the CSC back), instead of the one containted in the rom.
You can try to flash the CSC from a MM Vodafone UK Rom. Make sure to pick the CSC_VOD_version instead of HOME_CSC_VOD as only the first one will wipe the device and set the CSC back to the default one from that file: Vodafone UK.
Try to extract the CSC from here:
http://www.sammobile.com/firmwares/download/104056/G930FXXS1BPJ1_G930FVFG1BPH2_VOD/

How do I change from Three UK firmware to BTU on Galaxy S8+ without losing data

Can anyone provide a very detail guide on how to change from Three UK firmware to BTU on Galaxy S8+ as Three UK hasn't updated Galaxy S8+ since April. I feel very left out at the moment. I would like to change without losing data. Is there a way of doing this?
kalinskym said:
Can anyone provide a very detail guide on how to change from Three UK firmware to BTU on Galaxy S8+ as Three UK hasn't updated Galaxy S8+ since April. I feel very left out at the moment. I would like to change without losing data. Is there a way of doing this?
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Click to collapse
Yeah I hate this too so out of date, but I am seeing three firmware appearing on sammobile everywhere else apart from united kingdom. I was actually thinking of flashing the three firmware at one stage as I'm missing out on volte but having more up to date firmware is top priority for me
I would like to keep WiFi calling. Even though I haven't used it once. Why is Three behaving like this. Did you flash BTU version after being fed up with Three lack of updates.
kalinskym said:
Can anyone provide a very detail guide on how to change from Three UK firmware to BTU on Galaxy S8+ as Three UK hasn't updated Galaxy S8+ since April. I feel very left out at the moment. I would like to change without losing data. Is there a way of doing this?
Click to expand...
Click to collapse
NOT possible...
BTU is part of the Multi-CSC OXM where MANY European CSC's are included.
If you download for i.e. the BTU-firmware, that'll be the same firmware as for i.e. PHN (Netherlands).
You'll have to flash BL CP AP & CSC_OXM on your phone; your phone will be resetted afterwards.
The DEFAULT CSC for OXM is XEU. Your phone "sees", that an UK-SIM is included and will "switch" to the best CSC for your device, which is in this case XEU. You won't get BTU on your device...
I'll lose my data with XEU won't I
kalinskym said:
I'll lose my data with XEU won't I
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Click to collapse
If you change your CSC, you'll ALWAYS lose your data...
Also worth noting that to keep Volte/WiFi Calling you would need to use the Three Firmware (H3G) as the OXM CSC firmware does not enable it.
I'm a Three UK customer and have tried many times to get Volte/WiFi calling working on XEU (OXM Multi CSC) with no luck. Only works when I use H3G firmware but I hate the crappy branding so sacrificed Volte for no branding.
I flashed from vodafone uk to btu but as someone said you get xeu. Updates are fast I had 3 already.
Sent from my SM-G955F using XDA-Developers Legacy app
I flashed the OXM firmware from henklbr's thread, but used HOME_CSC from the last H3G firmware to keep WiFi callling
Sent from my Pixel using Tapatalk
I'm on 3 had update this morning,
Latest update was pushed this morning on 3UK
Good one
flashed three firmware coming from xeu but cant send text messages lol everything else works, also the message center is grayed out so i cant manually imput the smsc number....
Just need to wait until we get August update. Probably won't be till November/ December. I hope when Beta for Android O is released. We will be able to join in on the excitement

No Multi-CSC after flashing Germany's Oreo firmware

Hello, I first bought my phone from Taiwan and the CSC was pointing to BRI(Taiwan) at first but now after flashing Germany's Oreo firmware by following the xda thread, it no longer shows anything in my avaliable CSC, I'm only getting CHO(Chile) and nothing else. Is there a possible fix? I also tried flashing Taiwans firmware for nougat but still ended up with CHO service provider.
Im trying to get back to stock Taiwan firmware because they now have oreo update and supports Samsung Pay while the Germany's firmware doesn't support at all.
Also I accidentally reset my phone with Canada's Sim card in while factory resetting once.
I've attached an image of my phone's CSC info
Any help is appreciated. Thank you
EDIT: another thing I noticed was my phone model changed from SM-G955FD to SM-G955F, is there any way to get it back to FD somehow? In my settings. About phone, it does say SM-G955FD still though
If you change the 'model' of your phone via a flash, you need to flash/change the CSC with the same 'model' of the OS you used.
If it seems a bit convoluted, I'd flash back to full OEM, and make sure that is all OK, and then flash the proper CSC package.
daffychuy said:
Hello, I first bought my phone from Taiwan and the CSC was pointing to BRI(Taiwan) at first but now after flashing Germany's Oreo firmware by following the xda thread, it no longer shows anything in my avaliable CSC, I'm only getting CHO(Chile) and nothing else. Is there a possible fix? I also tried flashing Taiwans firmware for nougat but still ended up with CHO service provider.
Im trying to get back to stock Taiwan firmware because they now have oreo update and supports Samsung Pay while the Germany's firmware doesn't support at all.
Also I accidentally reset my phone with Canada's Sim card in while factory resetting once.
I've attached an image of my phone's CSC info
Any help is appreciated. Thank you
EDIT: another thing I noticed was my phone model changed from SM-G955FD to SM-G955F, is there any way to get it back to FD somehow? In my settings. About phone, it does say SM-G955FD still though
Click to expand...
Click to collapse
Firmwares for SM-G955F and SM-G955FD are IDENTICAL, your model number has not changed. To change CSC I had to install FW with new CSC, then do factory reset and after first boot I got prompted whether I want to change my CSC (based on inserted SIM card), confirmed, the phone did factory reset again and got new CSC installed. Also, Canada is not included within OXM multi-CSC package as G955F/FD is not sold there (or at least not officially).
kernel.killer said:
Firmwares for SM-G955F and SM-G955FD are IDENTICAL, your model number has not changed. To change CSC I had to install FW with new CSC, then do factory reset and after first boot I got prompted whether I want to change my CSC (based on inserted SIM card), confirmed, the phone did factory reset again and got new CSC installed. Also, Canada is not included within OXM multi-CSC package as G955F/FD is not sold there (or at least not officially).
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Click to collapse
JeffDC said:
If you change the 'model' of your phone via a flash, you need to flash/change the CSC with the same 'model' of the OS you used.
If it seems a bit convoluted, I'd flash back to full OEM, and make sure that is all OK, and then flash the proper CSC package.
Click to expand...
Click to collapse
Thank you both for your help. I'll try and flash just the CSC firmware then reset when samsung decides to push the OTA again and will see if that solves it. The firmware for Taiwan came out only a few days before they took it out so didn't have a chance to download it.

Question No provider update (CSC)

Hello everyone,
I live in France and I have a problem. The CSC of my SM-G996B is blocked on EUX so I don't have the firmware update and the Samsung members don't work. I have my sim card in the phone but no update to XEF is proposed to me (even after complete reset and multiple restarts).I have my sim card in the phone but no update to XEF is offered (even after a complete reset and multiple reboots). Does anyone have a solution to force the update of my csc or simply to make the update of the CSC appear because no provider update page for 1 month ? I have to update each time via Odin (for example I just switched to One UI 4.1 with march patches XEF yesterday) taking the XEF fw but since it's multi csc it makes the update without switching to XEF.
Yhank you in advance
Only way is to use Samkey, buy a few points (it isn't free) and change CSC that way. I did it on mine (with points from eBay, not recommended as it might get your phone blacklisted on Samkey) which was TMobile locked but now runs PHN (unlocked Netherlands) fine with all Vodafone services working, volte/vowifi and I get Vodafone software updates over ota as well.

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