Custom ROM for Samsung Galaxy J8 - Android Q&A, Help & Troubleshooting

I recently bought a Samsung Galaxy J8 from Australia because I lost my phone there. When I came home to India I found out that the Australian J8 does not support VoLTE (Voice over LTE) but I need VoLTE for my Indian sim card to work. So I went to the Samsung service center but they straight away denied any support since I bought this in another country.
The Indian varient J8 supports VoLTE but the Australian one does not even when both the phones have the exact same hardware. So its a software limitation.
Can anyone suggest any method I can use to install any custom ROM that'll support VoLTE.
I'm willing to install anything, root my phone or whatever it takes since I'm never gonna get any warranty on this. So I might as well try everything else.

Amritansu_Mitra said:
I recently bought a Samsung Galaxy J8 from Australia because I lost my phone there. When I came home to India I found out that the Australian J8 does not support VoLTE (Voice over LTE) but I need VoLTE for my Indian sim card to work. So I went to the Samsung service center but they straight away denied any support since I bought this in another country.
The Indian varient J8 supports VoLTE but the Australian one does not even when both the phones have the exact same hardware. So its a software limitation.
Can anyone suggest any method I can use to install any custom ROM that'll support VoLTE.
I'm willing to install anything, root my phone or whatever it takes since I'm never gonna get any warranty on this. So I might as well try everything else.
Click to expand...
Click to collapse
Just download Indian firmware from sammobile and flash via odin, that will contain latest modem for your device. It might bring VoLTE, because I think its software problem.

Bad.Wolf said:
Just download Indian firmware from sammobile and flash via odin, that will contain latest modem for your device. It might bring VoLTE, because I think its software problem.
Click to expand...
Click to collapse
I tried but it won't let me install any other model firmware. My phone's Model Number is SM-J810Y but the phones available in India have model number SM-J810G. So it won't let me install the "G" firmware. I get a failed message.
Do you have any other suggestion?

help
Hi, I wanted to change my ROM but I forgot the OEM. I am stuck with the FRP. Someone would have the U3 COMBINATION for the J810YDXU3BSE1
Please

Related

Samsung pay location change

Hello,
I have s9+ exynos from uae, is it possible to change samsung pay country to india so that i can add indian cards, by flashing india stock firmware or some other way, someone please advice me on this.
ahamed.rafi135 said:
Hello,
I have s9+ exynos from uae, is it possible to change samsung pay country to india so that i can add indian cards, by flashing india stock firmware or some other way, someone please advice me on this.
Click to expand...
Click to collapse
Do we have a solution to this one? I got an S9+ from Dubai and i live in India. Can i directly flash the India firmware on this phone?
From my experience I've added my Indian card to Samsung Pay of a different country and it's worked fine.
Why don't you try adding normally?
If you get any message, please share it here.
I assume you get the same connection error as me. But yes on some models you can change the css to reflect a samsung pay supported country. Check sam mobile for a baseband from a country try that supports spay and make sure it's the same model. Iirc there are 3 s9+ models unlocked, international, dual sim. Unlucky for me my Latin America one cant have it s country changed.View attachment 4621001
Sent from my SM-G9650 using Tapatalk
Flash the Indian Firmware
ahamed.rafi135 said:
Hello,
I have s9+ exynos from uae, is it possible to change samsung pay country to india so that i can add indian cards, by flashing india stock firmware or some other way, someone please advice me on this.
Click to expand...
Click to collapse
Same issue here. Although when I went to add my Debit Card, the UAE Firmware Samsung Pay
accepted my card and is working fine. The only issue I had was that it showed offers of UAE and not India. I flashed the Indian Firmware on my device and now I have the Indian Samsung Pay app.

Korean s9Plus

Hi Guys Im using a SM-G965N in the UK, when I try to register for the Pie Beta it give me the message "Your sim card doenst match the service provider software on your phone. This is common if you've changed service providers or if your phone and SIM card are from different country's" Im using the 3 network in the UK and the phone is LGu... Anyone have any work around..?
Anyone? I have exactly same problem. I got sm-g965n with LG Uplus carrier living in other country. Can i just flask stock firmware in my region to get rid of all the bloats and also is there a way for me to participate in pie beta? I can also swap this one with carrier unlocked SD845 version. Can i flash US stock on that one also?
Hi guys, I'm running into a similar issue with G965F device in Canada.
Here's what I've been able to piece together. Each device is a hardware variant and can use a specific set of firmware variants (sometimes called Multi-CSC). Your hardware variant is G965N. And if you look at sammobile for hardware variant, you can see the set of firmware available for this specific device. Unfortunately for you, there is ONLY Korean firmware for this hardware variant. For me, I have many more options but still no Canada!
It it completely inadvisable to flash the firmware onto your device that is not specifically tailored to your hardware. It's especially stupid when the firmware is tailored for an entirely different chipset (for example, Exynos firmware for Snapdragon hardware). But even if the devices use the same chipset, there may exist other hardware differences that will cause instability/errors/ bricks/unknown.
So as far as I can tell, we're all screwed. Have a nice day
Great news. I got into Pie Beta with my g965n. I was about to change my phone when i found LG Uplus sim card in my country. I put the sim card in and was able to register and download OTA. Now i am on android pie.
Nomado said:
Great news. I got into Pie Beta with my g965n. I was about to change my phone when i found LG Uplus sim card in my country. I put the sim card in and was able to register and download OTA. Now i am on android pie.
Click to expand...
Click to collapse
Send me the sim card.....PLEASE !!!! or tell me where you got it..
damonsk14 said:
Send me the sim card.....PLEASE !!!! or tell me where you got it..
Click to expand...
Click to collapse
I found it almost by luck. I was at this phone store when i randomly asked from a lady selling smart phones whether she had Lg Uplus sim card or not and she said yeah i got few. You can have one. That is how i found one. I wouldn't be able to ship it outside country without reliable shipping service in my country.
damonsk14 said:
Hi Guys Im using a SM-G965N in the UK, when I try to register for the Pie Beta it give me the message "Your sim card doenst match the service provider software on your phone. This is common if you've changed service providers or if your phone and SIM card are from different country's" Im using the 3 network in the UK and the phone is LGu... Anyone have any work around..?
Click to expand...
Click to collapse
Ran in to the same issue. Flashing in a Custom ROM helped.
https://forum.xda-developers.com/showpost.php?p=81856129&postcount=2150
Gamaka said:
Ran in to the same issue. Flashing in a Custom ROM helped.
https://forum.xda-developers.com/showpost.php?p=81856129&postcount=2150
Click to expand...
Click to collapse
which one custom rom did you flash ?
Graphite` said:
which one custom rom did you flash ?
Click to expand...
Click to collapse
Visit
https://androidfilehost.com/?w=files&flid=257743
Use SM-G965N files

Flashing SM-G9650 (Brazil) into SM-G965U1 (US)?

Hi. I want to flash a Brazilian firmware (dual SIM) into my US hardware (single SIM). Both are Snapdragon. Reason is that I want to use the Brazilian Samsung Pay. Bough the phone in the US but I live in Brazil.
Can I flash THIS ROM without problems? Will it trigger Knox? Any loss in functionality?
Thank you all.
gustavrsh said:
Hi. I want to flash a Brazilian firmware (dual SIM) into my US hardware (single SIM). Both are Snapdragon. Reason is that I want to use the Brazilian Samsung Pay. Bough the phone in the US but I live in Brazil.
Can I flash THIS ROM without problems? Will it trigger Knox? Any loss in functionality?
Thank you all.
Click to expand...
Click to collapse
no
gustavrsh said:
Hi. I want to flash a Brazilian firmware (dual SIM) into my US hardware (single SIM). Both are Snapdragon. Reason is that I want to use the Brazilian Samsung Pay. Bough the phone in the US but I live in Brazil.
Can I flash THIS ROM without problems? Will it trigger Knox? Any loss in functionality?
Thank you all.
Click to expand...
Click to collapse
not possible. also, is there not a CSC for your area you can flash instead?
I don't know why these guys say it's not possible, maybe it isn't with your model. I also don't want to give you any bad ideas or anything, so use your own discretion & research.
My phone was unusable when I did this, so I had nothing to lose when I did this (It worked though).
I easily flashed my canadian note 8 with a us firmware using modified odin (must be same version bootloader).
It has warranty status 0x0 (aka, Knox is NOT tripped).
AGAIN, I'm not advising you try this with your model, unless you know what you're doing. I just want to make the information available to you.
Edit: I'm just waiting for someone to upload snapdragon beta 3 one ui 2.0. I'm going to try the same method to convert my Canadian s9+ to USA version.
Edit 2: I can confirm this method works on my Canadian s9+ aswell.
Amb669 said:
I don't know why these guys say it's not possible, maybe it isn't with your model. I also don't want to give you any bad ideas or anything, so use your own discretion & research.
My phone was unusable when I did this, so I had nothing to lose when I did this (It worked though).
I easily flashed my canadian note 8 with a us firmware using modified odin (must be same version bootloader).
It has warranty status 0x0 (aka, Knox is NOT tripped).
AGAIN, I'm not advising you try this with your model, unless you know what you're doing. I just want to make the information available to you.
Edit: I'm just waiting for someone to upload snapdragon beta 3 one ui 2.0. I'm going to try the same method to convert my Canadian s9+ to USA version.
Edit 2: I can confirm this method works on my Canadian s9+ aswell.
Click to expand...
Click to collapse
Yeah I don't think it'll work on mine, since it's a single sim phone, and the ROM I wanted was for a dual sim version. Unless of course the hardware is the same and the second SIM slot is present. I could try, but I don't want to risk it. Maybe later when Sammy stops updating the phone.
Youdoofus said:
not possible. also, is there not a CSC for your area you can flash instead?
Click to expand...
Click to collapse
Unfortunately not. The SM-G965U1 is the US unlocked version. There are only CSCs for American carriers.
gustavrsh said:
Yeah I don't think it'll work on mine, since it's a single sim phone, and the ROM I wanted was for a dual sim version. Unless of course the hardware is the same and the second SIM slot is present. I could try, but I don't want to risk it. Maybe later when Sammy stops updating the phone.
Unfortunately not. The SM-G965U1 is the US unlocked version. There are only CSCs for American carriers.
Click to expand...
Click to collapse
if its truly unlocked, then you should already have the U1 firmware on it. Get modded Odin and the U1 firmware, flash it in Odin and go from there. I never looked back after ditching the carrier junk on my phone
Sometime ago I did somethinh like that on my Arabian S7 Edge that I bough in Paraguai, it was Dual Sim model and i flashed ZTO CSC via Odin, and the phone was working well, but i'm not sure if the reverse works, and even the models were similar (F vs FD version) in your case u have 965U vs 9650, I would not take that risk, i thing that a korean or chinese model is 9650 too
look at this picture, US version has more bands so the modem could be different, you can try but you're risking your phone
davenasc said:
look at this picture, US version has more bands so the modem could be different, you can try but you're risking your phone
Click to expand...
Click to collapse
yep, they are different phones that just so happen to use the same processor. Different bootloader, same chassis for whatever reason. Anyways, there have been threads talking about converting the 9650 to a 965u, but ive never seen anyone confirming that it indeed works. Big risk, but as long as one can get back to Odin mode, one should be good.

HELP Can I flash a dual SIM firmware onto a single SIM phone

Can I flash a dual SIM firmware onto a single SIM phone
hello, i need help please... my samsung s8 doesnt receive updates. i have tried searching for the firmware i can use to flash it but no luck. my s8 is sm g950f and my region is nigeria. the phone has been stuck on oreo since i got it.
marv108 said:
Can I flash a dual SIM firmware onto a single SIM phone
hello, i need help please... my samsung s8 doesnt receive updates. i have tried searching for the firmware i can use to flash it but no luck. my s8 is sm g950f and my region is nigeria. the phone has been stuck on oreo since i got it.
Click to expand...
Click to collapse
Did you flash the dual sim firmware onto you single sim phone in the end? If so, what works and what doesn't work? I'm in a similar situation, but the reason why I'm asking is because I want to get VoLTE working in a specific country. The variant of the phone that is sold in that country is the FD variant whereas mine is the F variant - which was purchased in a different country.

Question AT&T Base Firmware needed for A526U

Hello, looking for some help to see if anyone can help me find the firmware of my A526U specifically for AT&T? I have moved my phone over from TMobile where I purchased it from, and am looking to re-flash it to AT&T. Was working fine for a few months, now I'm no longer able to make or receive calls.
After inserting the new AT&T SIM card, the TMobile splash screen still shows up. The Service Provider software version reflects TMobile still as well and I'm concerned that for whatever reason the phone did not fully update after inserting the new SIM. I spent 2 hours on the phone with AT&T support after the store said they couldn't help me. Pulled the SIM card out, restarted phone, put it back in, reset network settings etc. I've searched sammobile and I cannot find the AT&T firmware, only TMobile, Sprint, and TMK. I would sincerely be greateful please if anyone could help me by pointing me in the right direction for the firmware for this model phone.
AT&T doesn't make their firmware available publicly - for any device. I have a source who can get me Samsung firmware for any USA device - even AT&T. But he charges me for each one
I appreciate the quick response! Is there any option I have here? Could I try flashing a "U1" firmware to his phone then? He's currently on A526USQS4CVA6. I actually found your other post as I was also working on my note 10 plus - https://forum.xda-developers.com/t/n975u-and-n975u1-firmware-links-here.3957648/. If I'm reading that correctly, I should be able to correct? If so, how can I tell if the version I'm downloading is "downgrading the bootloader"
aschaffer35 said:
I appreciate the quick response! Is there any option I have here? Could I try flashing a "U1" firmware to his phone then? He's currently on A526USQS4CVA6. I actually found your other post as I was also working on my note 10 plus - https://forum.xda-developers.com/t/n975u-and-n975u1-firmware-links-here.3957648/. If I'm reading that correctly, I should be able to correct? If so, how can I tell if the version I'm downloading is "downgrading the bootloader"
Click to expand...
Click to collapse
1. Yes, you can try flashing U1 if you want
2. You can't "downgrade the bootloader" - Odin won't let you.
3. In A526USQS4CVA6, "4" is the position of the bootloader level/revision/binary. Make sure that whatever U1 firmware you download also has a 4 in that spot and you'll be fine. (Or just get the firmware from Frija or one of the other similar firmware download tools, because those throw you whatever the newest version is automatically)
iBowToAndroid said:
1. Yes, you can try flashing U1 if you want
2. You can't "downgrade the bootloader" - Odin won't let you.
3. In A526USQS4CVA6, "4" is the position of the bootloader level/revision/binary. Make sure that whatever U1 firmware you download also has a 4 in that spot and you'll be fine. (Or just get the firmware from Frija or one of the other similar firmware download tools, because those throw you whatever the newest version is automatically)
Click to expand...
Click to collapse
Thank you very much sir! I shall give this a go this weekend! You guys rock!
My AT&T N10+ N975U is running on Pie. It transitioned seamlessly with no changes made on my end. It was already using 4G VoLTE though. Same sim card.
I would contact AT&T advanced tech support as there may be an easier way.
4G VoLTE needs to be enabled in hidden settings.
blackhawk said:
My AT&T N10+ N975U is running on Pie. It transitioned seamlessly with no changes made on my end. It was already using 4G VoLTE though. Same sim card.
I would contact AT&T advanced tech support as there may be an easier way.
4G VoLTE needs to be enabled in hidden settings.
Click to expand...
Click to collapse
Your AT&T phone? So it's originally an AT&T model that you're still using with them? That's not the same situation that the OP is in
iBowToAndroid said:
Your AT&T phone? So it's originally an AT&T model that you're still using with them? That's not the same situation that the OP is in
Click to expand...
Click to collapse
The U is the AT&T variant vs the U1 which is the unlocked variant, correct?
blackhawk said:
The U is the AT&T variant vs the U1 which is the unlocked variant, correct?
Click to expand...
Click to collapse
Yup. But OP has a T-Mobile model that they moved to AT&T. There's also no guarantee that a Note 10+ will work the exact same way as an A52. You're also running 3 year old firmware, while OP is fully updated.
So i don't see the correlation.
iBowToAndroid said:
Yup. But OP has a T-Mobile model that they moved to AT&T. There's also no guarantee that a Note 10+ will work the exact same way as an A52. You're also running 3 year old firmware, while OP is fully updated.
So i don't see the correlation.
Click to expand...
Click to collapse
The old firmware works fine on 4G VoLTE... that's likely not the issue. What is the issue is it wasn't running on 4G VoLTE so it's likely the settings and sim card need updating not the firmware.
Hi All, thought I would provide an update... After spending hours on the phone with AT&T support this week and being frustrated with the AT&T store, I decided to proceed forward with flashing the U1 version. What started this all was last week my son could no longer make or receive calls on his AT&T A52 phone (we ported it from TMobile September 2021). The store and AT&T advanced tech support said there were issues with people's BYOD devices, even though the A526U and A526U1 shows on the supported devices list. The store rep said he's been getting people in left and right that can't make or receive calls, and all they can do is upsell customers to an AT&T branded phone.
SO... my son's phone was on A526USQS4CVA6. Startup screen showed TMobile still, even with the AT&T SIM card in it. I proceed to flash the A526U1OYM4CVB2_ATT that I found from Sammobile. Was hoping someone had just the "U" version but I couldn't find this anywhere. When doing the flash, I used the Home_CSC file (I had to download a patched version of ODIN as it was stuck as setting up connection) and when it finished it would just keep going back to the download screen on the phone and I freaked out. I did some more research and decided to flash again using CSC instead of Home.CSC (I did a backup using smart switch on my PC luckily). This WORKED! I'm guessing because the software version he was on was different than what I was trying to flash too so maybe this is why I needed the CSC for a clean flash (there was no user data file that downloaded from SAMMOBILE).
Now, calls are working on my son's phone again! AND his service provider software version now reflects ATT vs TMB! Man this has been one heck of a journey lol. I've seen numerous forums on google of people having the same trouble with me, their BYOD devices not working. Seems a flash of U1 worked for me, so hopefully this helps others out there!

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