Three & EE VoLTE on S8+ XEU/BTU firmware - Samsung Galaxy S8+ Questions & Answers

Hi,
Has anyone been able to access Three and EE VoLTE on ether XEU or BTU firmwares? I am thinking of getting the S8+ Dual SIM but don't really want to have to flash a 3 branded firmware on a dual SIM model if I can help it.
Thanks.

Can't answer for dual SIM variant, but you can do it in a number of ways, you flash the three firmware and CSC, or you flash the EE firmware and CSC. Both will mean you get OTAs. I however used EE CSC and xeu rest of the firmware. I get the best of both worlds but have to manually update using a hybrid of the EE CSC and xeu rest.

I have flashed BTU firmware before with Three CSC but yes it causes a mismatch and OTA updates no longer work ;-(

Related

Samsung Pay G930F

Hi
I have a S7 G930F (single sim) version. It has an XSG firmware from the UAE (Phone is from Dubai).
I'm trying to work out how samsung pay will work when available in the UK. I can access the app now without any issues.
Would it detect that I'm not on a BTU (UK) firmware and not let Samsung pay work or is it depended on if I am using a UK Sim etc?
I guess the easy answer to this would be ' Has anyone used their current european G930/G935 in the US on Samsung Pay with a US sim card and had it work?
I can't flash BTU firmware and CSC as Samsung Pay will only ever work on the original CSC and even when installing new firmware and CSC from another region is keeps a log of the original CSC on the phone and detects a modification.
My know is still 0x0 by the way as I've only used Odin with stock firmware.

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?
Click to expand...
Click to collapse
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/

BTU firmware? VoLTE?

What is BTU firmware? and should I do it to my phone? Will it mess up my carrier?
I'm on EE (United Kingdom Carrier) and flashed this via odin (https://www.sammobile.com/firmwares/download/116719/G930FXXU1BPLJ_G930FEVR1BPK5_EVR/) I didn't use HOME_CSC. I used the normal CSC. Is this what caused VoLTE active on my phone? Thanks.
readlikeabook said:
What is BTU firmware? and should I do it to my phone? Will it mess up my carrier?
I'm on EE (United Kingdom Carrier) and flashed this via odin (https://www.sammobile.com/firmwares/download/116719/G930FXXU1BPLJ_G930FEVR1BPK5_EVR/) I didn't use HOME_CSC. I used the normal CSC. Is this what caused VoLTE active on my phone? Thanks.
Click to expand...
Click to collapse
BTU is the unbranded firmware, EVR is the EE branded firmware
VoLTE is active in that EVR (EE) firmware.
I did have XEU (seems to be a Samsung generic build CWH put on their phones) on my EE contract phone from CWH that didn't have VoLTE and I wanted it so I flashed my phone with that EVR build to get it.
I assume BTU (Samsung generic) won't have it either until Nougat where the carrier will be able to remotely send it's configs to phones regardless of build variation.
Sent from my SM-G930F using Tapatalk

OTA Nougat UK

I have an S7 on MM, when are Nougat OTA's are coming to the UK? I don't bother rooting any longer but I am tempted to sideload if Samsung are going to take forever.
Depend on what s7 you have?
Edge G935
I'm on a sim only plan with BT so I own my phone rather than rent, I have spoken to BT who tell me its a Samsung OTA and they have no control, and Samsung merely tell me to to contact my Carrier.
Might end up sideloading!
It's already out. What CSC are you using?
Is the device network locked.
Can you install "Phone Info" app from play store and check which CSC is currently set as your active CSC. The CSC is the one based on which the updates are set.
kamranali44 said:
It's already out. What CSC are you using?
Is the device network locked.
Can you install "Phone Info" app from play store and check which CSC is currently set as your active CSC. The CSC is the one based on which the updates are set.
Click to expand...
Click to collapse
XEU
Unlocked
It's not been released yet from what i can see on SamMobile.
InfernalByte said:
XEU
Unlocked
Click to expand...
Click to collapse
I have the same UK firmware but with BTU. The difference is given below (Copied from someone on xda). https://forum.xda-developers.com/galaxy-s6-edge/help/btu-xeu-t3100911
"I think i worked out the difference between BTU and XEU.
BTU firmware are on phones that come directly from Samsung (unbranded)
XEU firmware are on Sim Free handsets that are generic (unbranded) but not from Samsung"
You can now decide whether to wait for XEU or flash BTU. If you do decide to flash, backup data first and confirm that the active csc is set to BTU for OTA to work.
mimo2008 said:
It's not been released yet from what i can see on SamMobile.
Click to expand...
Click to collapse
Is this mine? Listed after the update half way down the page?
https://www.sammobile.com/2017/01/1...mware-for-the-galaxy-s7-now-available-online/
kamranali44 said:
I have the same UK firmware but with BTU. The difference is given below (Copied from someone on xda). https://forum.xda-developers.com/galaxy-s6-edge/help/btu-xeu-t3100911
"I think i worked out the difference between BTU and XEU.
BTU firmware are on phones that come directly from Samsung (unbranded)
XEU firmware are on Sim Free handsets that are generic (unbranded) but not from Samsung"
You can now decide whether to wait for XEU or flash BTU. If you do decide to flash, backup data first and confirm that the active csc is set to BTU for OTA to work.
Click to expand...
Click to collapse
I may wait a few weeks, unless its done with the flash Icannot set XEU to BTU, there is no option.
kamranali44 said:
I have the same UK firmware but with BTU. The difference is given below (Copied from someone on xda). https://forum.xda-developers.com/galaxy-s6-edge/help/btu-xeu-t3100911
"I think i worked out the difference between BTU and XEU.
BTU firmware are on phones that come directly from Samsung (unbranded)
XEU firmware are on Sim Free handsets that are generic (unbranded) but not from Samsung"
Click to expand...
Click to collapse
Is your phone direct from Samsung? Mine is Sim Free, unbranded not from Samsung.
Exu is Ireland band by the looks of it.
InfernalByte said:
Is your phone direct from Samsung? Mine is Sim Free, unbranded not from Samsung.
Click to expand...
Click to collapse
I brought it from ebay but I did flash the BTU firmware myself. My phone orignally had multi csc which included BTU and had a german (DBT) csc set as active.
You cannot change the CSC by device but you can flash a firmware with completely different CSC and then flash the BTU one.
I flashed mine with O2U firmware which made it forget the multi csc and then flashed BTU which set the active csc as BTU. I originally flashed the first nougat update release by Samsung and then received the performance update using OTA.
This might make it simple "You are not getting the BTU OTA updates because you don't have BTU CSC but DBT. You flashed BTU Rom but it's a multi CSC Rom and it has inside your original DBT CSC. So your CSC didn't change to BTU...If you want to have BTU CSC so you can get OTA upfates from BTU you have first to flash a rom that it's CSC is not inside the multi CSC you have now, let's say for example a rom with EUR CSC. Then you CSC will change to EUR. After that you can reflash BTU Rom and your CSC will change to BTU...Then you can take the OTA updates from BTU normally..."
Check this thread - https://forum.xda-developers.com/ga...ta-updates-t3552316/post70923890#post70923890
Check post number 32, I added the screenshots over there as well.
There is http://updato.com/ as well if you want to download firmware faster (a lot faster than sammobile). I think they are official but have only checked one so far.
Backup the data first, flashing a different csc will factory reset the device.
That's what I kinda done I was on vodafone and preferred to be on btu so I flashed that instead but once I flashed it done wipe cache and data factory reset just to make sure all was ok on another note I kept wifi calling as well.

How cabn update my phone

I have a smg930v convertet into smg930f due sim support how can i update it to nougat to support all sims
930V and 930F are completely different chipsets, you can't just convert from one to another. What model does it say it is in download mode?
If it's a 930V then you can try flashing the 930U Nougat firmware from sammobile or updato, as it's the unlocked firmware. But if the phone is carrier locked to a SIM, you will need to get it carrier unlocked which can't be done with a firmware flash.
If it's a 930F you can flash the default UK firmware it ships with if you buy it carrier unlocked, also from sammobile or updato

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