Flash a different ROM into SM-G9550 - Samsung Galaxy S8+ Questions & Answers

I bought an unlocked S8+ from a website. It is from Hong Kong, dual SIM, the model number is SM-G9550. I am using it in Australia. Now there are two things that I cannot do with it - VoLTE and Samsung Pay. Also the Android 8.0 upgrade is still unavailable for SM-G9550, which is crazy. All mobile carriers in Australia has pushed Oreo upgrade but I cannot get it.
If anyone can help me with my questions here:
1) Can I flash an Australia firmware to my handset? If it is possible, do I have to root it?
2) If it can be flashed with an Australia firmware, is the dual SIM feature still available? I ask because all phones sold in Australia (except those on website and apparently overseas version as mine) the dual SIM feature is banned/locked because the telecom companies don't want to allow competition, and ACCC (the consumer council) is just a puppet.
3) If it can be flashed with Australia firmware, can I turn the VoLTE on? At the moment, it cannot be turned on as there is no such an option in the Settings.
Thanks in advance!

I'm sorry to tell this, but you simply can't flash anything other than the chinese software on this phone. There are two CSCs available for the g9550 which apparently are CHC (open China) and TGY (Hong Kong) according to updato. Both aren't on Android 8 and I'm not sure if they ever will be.
So:
1) No you can't. Australian providers make their software for the australian model (which is the international) G955F.
2)-
3)-
So to look the truth in its face:
You might be better of selling this phone and buying the international g955F, which is compatible with australian firmware. alternatively there is the G955FD, which is dual sim, but (i just googled for 2 minutes so could be wrong) there also is no official australian firmware. What you can do with the g955F/FD is rooting, which could perhaps give you the possibility to flash an australian CSC to the FD, if you really are thinking about buying one, someone could sure give you the answer to if its possible or not

Related

Use Firmware Of A Different Model

Hi,
I have a S8+ with the model SM-G955FD and was wondering if I am able to download the firmware for the model SM-G955F?
The phone was purchased outside of Australia and doesn't use the Australian (Telstra) firmware that I would like it to. I just figured they are the same phone just different model numbers so there shouldn't be any issues right? I might just lose a couple features or something but the phone should work correctly?
Thanks in advance.
Yea, the G955FD is the dual SIM Exynos variant, right?
I'm sure the dual SIM uses the same firmware as the single SIM, so you should have no worries flashing Aussie firmware.
But I would suggest you flash the XSA (Aussie unbranded) firmware, not Telstra firmware. You'll lose nothing, but you'll get faster updates.
the_scotsman said:
Yea, the G955FD is the dual SIM Exynos variant, right?
I'm sure the dual SIM uses the same firmware as the single SIM, so you should have no worries flashing Aussie firmware.
But I would suggest you flash the XSA (Aussie unbranded) firmware, not Telstra firmware. You'll lose nothing, but you'll get faster updates.
Click to expand...
Click to collapse
I thought as much, thanks so much for clarifying. I will download the XSA firmware as well.
Thanks
I'm using Metro PCS service on a Singapore XSP and experiencing some terrible 4G service. Is there anything I can do about this, looked perhaps flash smother CSC onto my 955FD?
michel5891 said:
I'm using Metro PCS service on a Singapore XSP and experiencing some terrible 4G service. Is there anything I can do about this, looked perhaps flash smother CSC onto my 955FD?
Click to expand...
Click to collapse
Flash a different baseband.
Sent from my S8+, S7 edge or S6
---------- Post added at 03:49 PM ---------- Previous post was at 03:48 PM ----------
ProbablyRaging said:
Hi,
I have a S8+ with the model SM-G955FD and was wondering if I am able to download the firmware for the model SM-G955F?
The phone was purchased outside of Australia and doesn't use the Australian (Telstra) firmware that I would like it to. I just figured they are the same phone just different model numbers so there shouldn't be any issues right? I might just lose a couple features or something but the phone should work correctly?
Thanks in advance.
Click to expand...
Click to collapse
Im running F firmware on my FD now...its the same thing.
Sent from my S8+, S7 edge or S6
ProbablyRaging said:
Hi,
I have a S8+ with the model SM-G955FD and was wondering if I am able to download the firmware for the model SM-G955F?
The phone was purchased outside of Australia and doesn't use the Australian (Telstra) firmware that I would like it to. I just figured they are the same phone just different model numbers so there shouldn't be any issues right? I might just lose a couple features or something but the phone should work correctly?
Thanks in advance.
Click to expand...
Click to collapse
The phone will work pretty much fine provided
1 - Exact Same hardware . you can use snapdaragon ROMs on Snapdragon Devices and vice versa for Exynos .
2 - Same network Bands supported . The ROM contains the programs on how to operate in different frequencey bands .
If i helped you , hit the thanks button ! :laugh:
Same probem Can you help me
Hi there I am a silly person who purchased a Galaxy S8+ from Kogan which is flashed with Emirates firmware
Its model SM-G9f55FD G955Fxxu1AQL5
No VOlte and Samsung pay etc
I need to use Telstra network (im rural but in a VOLTE area) and so I need to flash it with Australian Firmware so it gets all the local features.
I would just like to know how I know what chipset to use - I dont think its snapdragon
And where to get the firmware.
Janettef said:
Hi there I am a silly person who purchased a Galaxy S8+ from Kogan which is flashed with Emirates firmware
Its model SM-G9f55FD G955Fxxu1AQL5
No VOlte and Samsung pay etc
I need to use Telstra network (im rural but in a VOLTE area) and so I need to flash it with Australian Firmware so it gets all the local features.
I would just like to know how I know what chipset to use - I dont think its snapdragon
And where to get the firmware.
Click to expand...
Click to collapse
I don't know how you can own a device and not know whats in it lol.
Anyway it is exynos and firmwares can be found at sammobile.com
https://www.sammobile.com/firmwares/galaxy-s8-plus/SM-G955FD/
sent from my Pixel 2 XL or Note FE
Janettef said:
Hi there I am a silly person who purchased a Galaxy S8+ from Kogan which is flashed with Emirates firmware
Its model SM-G9f55FD G955Fxxu1AQL5
No VOlte and Samsung pay etc
I need to use Telstra network (im rural but in a VOLTE area) and so I need to flash it with Australian Firmware so it gets all the local features.
I would just like to know how I know what chipset to use - I dont think its snapdragon
And where to get the firmware.
Click to expand...
Click to collapse
Here's the XSA (Australia) firmware:
http://updato.com/firmware-archive-select-model?record=0C53FCC1D0CA11E7A5F9FA163EE8F90B
Flash it. Doesn't matter if your device is G955F or FD, the ROMs are exactly the same.
Does the method works with G955J SCV35 model? I'm running NTDocomo firmware on KDDI model to unlock network (single SIM) . I wan't to flash unlocked U firmware but getting scared that the phone will be bricked.

s930fd in Australia - do I need to flash?

Hi,
I bought an s930fd from Hong Kong to use in Australia on the Telstra network. Currently it has:
PDA/AP Version G930FXXS1DQHM
CSC Version G930FOJV1DQEB
MODEM/CP Version G930FXXU1DQE8
Region XSG — United Arab Emirates
I don't care about the dual SIM feature. Also, the phone will eventually be flashed to Lineageos 15.1 so I won't be using OTA upgrades.
Do I need to flash to:
PDA/AP Version G930FXXS2DRCF
CSC Version G930FTEL2DRBA
MODEM/CP Version G930FXXU2DRAC
Region TEL — Australia
for it to work on the Telstra network? Or could I use:
PDA/AP Version G930FXXS2DRCE
CSC Version G930FXSA2DRAC
MODEM/CP Version G930FXXU2DRAC
Region XSA — Australia
which I assume has all the right modem information and other settings to work in Australia on any network?
You don't need to if you don't want to, since internationally most networks work the same.
Mine was also originally from UAE, the firmware it came with it worked fine with Optus without any additional flashing. I'm now on the UK BTU because it's what my custom ROM came with and it's also fine.
I would say go with XSA if you're going to flash since that's the unbranded firmware and should work on all Aus networks, but won't come with Telstra bloatware.
The main benefit for carrier specific is carrier specific features like VoLTE.
OK. Given Telstra runs VoLTE, then does XSA provide it or do I need to go to the specific TEL flash?
Cheers
I think you need the TEL flash, as far as I know VoLTE settings are carrier specific

Question Difference between variants?

Last week I bought the A53, and today I noticed I received the Indian variant (SM-A536E).
I'm from Europe and I bought it from a verified European shop.
I was wondering if this could have any disadvantages?
Like maybe the Indian ROM has more tracking than the European One (because of GDPR or something) or the Radios are different?
Could I for example flash the European ROM through Odin?
Thanks
-Asskicker- said:
Last week I bought the A53, and today I noticed I received the Indian variant (SM-A536E).
I'm from Europe and I bought it from a verified European shop.
I was wondering if this could have any disadvantages?
Like maybe the Indian ROM has more tracking than the European One (because of GDPR or something) or the Radios are different?
Could I for example flash the European ROM through Odin?
Thanks
Click to expand...
Click to collapse
The biggest difference for most people is going to be the supported frequencies, especially the 5G bands.
For example, I considered getting an international model shipped to me here in the USA (because the USA models cannot have their bootloaders unlocked without exploiting bugs) but decided against it because it wouldn't support one of the major 5G bands used here.
That's the only part of your question I can help with though, I don't know what would happen if you try to flash firmware from a different region.

Question Flip 3 5G F711U1; XAA => INU

I have got a Samsung Flip3 US unlocked version. Have been using it outside US with and Indian SIM card from last few months without any hiccups. With Samsung Pay working as well.
Now, with the release of 5G services here in India, I'm not sure the bands that Indian operators use are unlocked or not in this. Jio (Indian service provider) says that you're using a non-5G device.
So, I was wondering if I flash an INU firmware to my device. Will it unlock the bands and also let me get OTAs from Samsung? Maybe if someone here did this already?
(According to Jio, this phone is compatible with their 5G network. Also, checked on gsmarena, the international version has the bands that JIO supports.) Since the chipset in international and US is same, I suppose the bands are already there in the device.
Thanks in advance for your help and comments.
Hi Jatin, I don't think flashing your US flip 3 with IND firmware, will fix your problem. The IND firmware is for the F711B model, you are on the F711U1 model. I would not try that. A lot of the F7711B firmware are multi-CSC, but not for the U1 model.
Thanks for the reply, @slysurfer.
I was thinking that since both F711B and F711U1 share the same chipset (Snapdragon 888), the F711B firmware drivers will work on F711U1.
I read some other posts in here (on XDA itself) in which someone with an EUX variant flashed INU firmware to it. Not sure the EUX variant is multi-CSC or not.
jatin21 said:
Thanks for the reply, @slysurfer.
I was thinking that since both F711B and F711U1 share the same chipset (Snapdragon 888), the F711B firmware drivers will work on F711U1.
I read some other posts in here (on XDA itself) in which someone with an EUX variant flashed INU firmware to it. Not sure the EUX variant is multi-CSC or not.
Click to expand...
Click to collapse
Yes, the EUX variant is multi-CSC (to a degree) I can flash any firmware from Europe to South East Asia, but as mentioned we can't flash any firmware from US/Canada.
Big >IF< you can OEM unlock the bootloader you can install twrp and disable the vbmeta and flash a U firmware over a U1 phone and visa versa. But even if you can do all of that it probably still won't work. Personally I'd take it to my local mobile phone stall and see if they can do it.
Thankyou @beanbean50 for your answers.
Sorry for the noob question, . Earlier when Samsung used to release 2 different hardware versions of the same phone like one with Exynos and other with Snapdragon, flashing the other region ROM was not possible.
So, I was just wondering, since both the regions (US & South East Asia) has the exactly same hardware, the networks bands in both of these must only be software locked. Thus, since the US version already has the hardware, can't simply flashing a different region ROM should work.
Again, if there are some other locks that prevent this, it's not possible to flash. Just like if on paper both devices are same, the only difference they have is, they are released in different region.
Also, I checked, both are also manufactured in the Vietnam.
jatin21 said:
Thankyou @beanbean50 for your answers.
Sorry for the noob question, . Earlier when Samsung used to release 2 different hardware versions of the same phone like one with Exynos and other with Snapdragon, flashing the other region ROM was not possible.
So, I was just wondering, since both the regions (US & South East Asia) has the exactly same hardware, the networks bands in both of these must only be software locked. Thus, since the US version already has the hardware, can't simply flashing a different region ROM should work.
Again, if there are some other locks that prevent this, it's not possible to flash. Just like if on paper both devices are same, the only difference they have is, they are released in different region.
Also, I checked, both are also manufactured in the Vietnam.
Click to expand...
Click to collapse
Can you unlock the bootloader?
beanbean50 said:
Can you unlock the bootloader?
Click to expand...
Click to collapse
There is not OEM unlocking in under developer options. I have through other posts and things on how to unlock. I suppose it can't be unlocked in a straightforward like F711B can be.
I suppose this is the hard-stop that cleared my doubts.
Thanks one again, @beanbean50 for your time and answers. Really appreciated!!
P.S.: If you or someone you know have some experience unlocking a US snapdragon Samsung device bootloader, please do share. I might have to consider unlocking bootloader in the future.

Question Can I switch/flash my A326B/DS Region firmware

Hi I have a A326B/DS smartphone and the only firmware I can see online is from the Brazil region. I live in the UK and can see this was also an international model. So no idea why the only firmware online seems to be from Brazil.
My question is, I'm wanting to root/flash the device. Do I stick with the Brazil option, or should I use a A326B Firmware which looks like its from the UK (No DS on the end specific to my model)

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