yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S9  Guides, News, & Discussion] bigfire:
After hours of this (mostly because of slow downloads) I could use some help. I purchased an S9 from ATT BOGO to use on Tmobile for my wife. I have been trying to flash the U1 and the Tmobile firmwares, failing at both. I've tried multiple versions of all of the files and the sofware to no avail. Here's where I'm at:

The phone is currently at G960USQS2ARF4, so bootloader 2.

I'm currently using Odin3_v3.13.1_3B_PatcheD for Odin. I had started with Modded Odin v3.13.1 Raymonf.

For the U1 firmware, I'm currently at G965USQU2ARC6.

For the Tmobile firmware, I was trying G965USQU2ARC6 as well, which I understand is a little dangerous as it was withdrawn, but since I'm on bootloader 2, I didn't think I had an option.

I have USB Debugging turned on, and ADB, etc. I only have the default options on in Odin.

When I try to put U1 on the device, I get the error:

Secure Check Failed: abl

(actually, an error I hadn't seen before until I started writing up this message, I think because I was checking the phone previously, and ODIN is different)

When I try to put Tmobile on it, I get the error:

ODIN Re-partition operation failed

Phone: Secure Check Failed: PIT

(I assume because I hadn't gone to U1 first. And yes, I do not have the repartition option on - nevertheless, I get the error).

Any ideas? I'm at my wits end trying to get this to work.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
You don't need to check any options that aren't checked by default. Auto Reboot and F Reset Time are the only two options checked by default.
[Samsung Galaxy S9  Guides, News, & Discussion] bigfire:
Understood, and I haven't set any options except the two default options (I should have specified that in my original post). I know it's strange to be getting that error without having set the repartition option on.
[Samsung Galaxy S9  Guides, News, & Discussion] phorkz:
I think you have the wrong firmware. 965 is for S9+. You need 960.
[Samsung Galaxy S9  Guides, News, & Discussion] bigfire:
That was indeed the problem! I have the phone flashing now. Side note: Should I be using CSC_OMC_OYN, or HOME_CSC_OMC?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
Never use the HOME_CSC when flashing to U1, unless you want the potential for issues. Personally, I never use the HOME_CSC even when flashing to U firmware.
[Samsung Galaxy S9  Guides, News, & Discussion] imtoocool23:
any new links?

the dl link require premium and odin is down
[Samsung Galaxy S9  Guides, News, & Discussion] abecool56:
If I have a g9600 model can I flash the tmobile firmware and get wifi calling and volte and video calling?
[Samsung Galaxy S9  Guides, News, & Discussion] freshstylez:
i have a SM-G965U (ATT) with a bad imei. If i would flash it to another carrier firmware, will i be able to use it on that carrier ? is this blacklisted imei just going to permanently haunt me no matter which carrier this phone is flashed to? what are my options? thanks.
[Samsung Galaxy S9  Guides, News, & Discussion] thegreatkazoo:
If I flash the international firmware, to kill bloat, will I still get TMobile services like video calling.

Don't need visual vm and don't need WiFi calling but I do need video calling.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
T-Mobile's video calling is only available when you flash the TMB U firmware.
[Samsung Galaxy S9  Guides, News, & Discussion] thegreatkazoo:
That sucks. I'd kill to be able to flash a debloated fw like i did on my S7.

I thought it might get it services availability from the Sim. Especially just for video calling.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
You cold always look up how to use ADB to debloat. It really isn't that difficult. You just need the correct driver, commands, and the actual package names that you want to remove. ADB instructions are very easy to find and work on just about every Android device.
[Samsung Galaxy S9  Guides, News, & Discussion] thegreatkazoo:
I've done that in the past. I have no issues with adb. I'd like to rip all the samsung stuff out pretty much. I've only got a few TMobile apps that came on the phone but all the samsung crap needs to go.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
The Samsung bloat still comes in the U1. The only way to get rid of it is with ADB. Most people don't consider the Samsung stuff bloat though. I have removed most of the Galaxy and Edge apps from my S9 Plus. Next will be my Note 9 when it arrives on Friday.
[Samsung Galaxy S9  Guides, News, & Discussion] gmp009:
Is there anyway to do reverse of it ? as U got Aug security patch and U1 still on June. So i want to flash U firmware on U1, if someone know than please do help me how i will do that.... Thanks..
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
If you are on the U1 firmware, which is still on the v2 bootloader. Then you can flash any of the U v2 bootloader or v3 bootloader firmware without any issues. The U1 is basically the stepping stone to switching. If you want to change y our firmware, you have to go to U1 first. If you flash to a v3 bootloader U firmware though, then you are stuck on that firmware until the U1 gets the v3 bootloader.
[Samsung Galaxy S9  Guides, News, & Discussion] gmp009:
Thank you for your info. i guess i should stuck with whatever Samsung is offering don't wanna mess up with this device that soon tho ?
[Samsung Galaxy S9  Guides, News, & Discussion] thegreatkazoo:
Yeah, I got the august update and the camera is now pretty bad.lol
[Samsung Galaxy S9  Guides, News, & Discussion] buzzybaraka:
Is there a U1 version of v3 out yet?

I'm looking to get all sprint related stuff off my phone.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
Not yet! Hopefully not too long after Labor Day.
[Samsung Galaxy S9  Guides, News, & Discussion] buzzybaraka:
It's the reason why nothing was working for me. I had no idea about the V's. You're a life saver!

I'm using T-mobile with Sprint S9 (G960U), whenever I make a call, it falls on to 3G, and falls back to LTE afterwards. Do you think flashing it to U1 would resolve it?
[Samsung Galaxy S9  Guides, News, & Discussion] javed91214:
I need some help, i have sprint S9 & S9 plus with bl v2 , unlock process is not available for sprint s9 and s9 plus. so i am flashing T-mobile U1 firmware with bl v2. i am doing this for only unlock my phone, as Z3x support t-mobile unlocking. my question is will this work?
[Samsung Galaxy S9  Guides, News, & Discussion] buzzybaraka:
Flashing doesn't unlock phones. There's a website that can unlock your phones.
[Samsung Galaxy S9  Guides, News, & Discussion] alh84001:
I'm confused - isn't it the issue that you can't root Snapdragon galaxies?
[Samsung Galaxy S9  Guides, News, & Discussion] javed91214:
Chimera tool support started unlocking

Added Unlock Online* - First in the World

SM-N960U, SM-N960U1 (TMobile - TMB, TMK)

SM-G960U, SM-G960U1, SM-G965U, SM-G965U1 (Sprint - SPR, XAS)
[Samsung Galaxy S9  Guides, News, & Discussion] thegreatkazoo:
I've really thought a out buying one of the boxes. The z3x or the octopus. It's tempting. Lol
[Samsung Galaxy S9  Guides, News, & Discussion] javed91214:
i have z3x and octopus , both will release new update within 1-2 days. yesterday i had done the $100 payment to imeigurus for s9 plus, my phone is still locked. they r saying - wait for 2-3 days. pl dnt buy any credit from imeigurus.
[Samsung Galaxy S9  Guides, News, & Discussion] thegreatkazoo:
I've used unlockscope for my unlocks. Haven't tried for my s9 but I got an s7 unlock code a couple months after launch for 25$.

Edit: what are the limitations of the boxes? I'd need to unlock 2 s9 and a Sprint Galaxy tab 4 at a minimum. Probably an att s5 active as well.
[Samsung Galaxy S9  Guides, News, & Discussion] buzzybaraka:
Phone will still be locked after the first USB connection. I believe they were just gathering some info to get the unlocking ready. Contact them in 24hrs.
[Samsung Galaxy S9  Guides, News, & Discussion] javed91214:
they told me to contact tomorrow , let see. i am waiting for other tool update.

1st unlocking done via chimera tool. Thanks to Sagar Mobile Nagpur.
[Samsung Galaxy S9  Guides, News, & Discussion] murilomarca:
Hi,

I bought the S9 g960u1 (G960U1UES2ARF4) however my paypal runs USA.

I would like to change to ROM BRASIL ZTO (G9600ZHU3ARG4).

Is there such a possibility?

Thank you
[Samsung Galaxy S9  Guides, News, & Discussion] tti5972:
Hi guys just want to confirm some questions from flashing from one carrier to another

I have to flash the U1 version of the CARRIER i have first right (e.g I have a att 960, I have to flash att U1, then flash tmobile's U - not U1 - version)?

Why is that?

Also it seems that the tmobile version is on bootloader 2 .... which means that if i change my phone's version it will be non-reversible? Or am i missing something?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
There are no carrier U1 firmwares. All carrier firmwares for US carriers are U firmwares. The U1 is the non-carrier firmware.
[Samsung Galaxy S9  Guides, News, & Discussion] tti5972:
updato.com/firmware-archive-select-model?exact=1&q=SM-G960U1

thats what i thought, but when i look up G960U1 why are there different carrier versions on updato :( ?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
The U carrier versions for each carrier contain a different userdata and contain different settings related to that specific carrier.
[Samsung Galaxy S9  Guides, News, & Discussion] tti5972:
You mean U1 not U right? The updato link goes to G960U1 (not U) but has carrier versions for U1. So my flash steps are still correct right from ATT->TMobile? Flash the U1 carrier version of the phone (ATT), then flash U version (TMob).

And is my previous question from before that once i flash Tmob because it is on Bootloader 2 ... i wont be able to reverse what i do because theres no U2 bootloader out?

Thanks for your time!
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
No! There are no actual carrier U1 versions. These are basically just U1 firmwares with a specific or multiple userdata files added. Why people create these is beyond me, because they just create confusion. U firmwares are for carriers, which is also why the versions vary. Carriers get their updates faster where the U1 non-carrier firmware, even if you flash a userdata with it, still only get updates about once every 3 to 4 months.
[Samsung Galaxy S9  Guides, News, & Discussion] tti5972:
Ok i think im following, u1 is the same minus userdata. Flash that then my carrier of choice. But in regards to reverting if i ever need to, theres no u2 version .... unless im missing something or it will come out in the future?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
No, the U1 is not the same as the U minus the userdata. If that was the case, there would be no need to flash to the U1 from a U build to switch to another U build than originally on. If the U1 build isn't listed as XAA, then it isn't a U1 build. No proper U1 build comes with a userdata.

To successfully convert from a U build to the U1, you just have the same bootloader version or newer in the U1 build you are flashing to. The bootloader version is contained in the firmware string. The fifth character from the end is a number that applies to the bootloader version. 2ARF4 for example, is bootloader v2. If your current U firmware is on the v1 bootloader, than you can successfully flash it. If your bootloader is on v3, then you can't flash that U1 firmware specifically because it contains an earlier version of the bootloader. You can not revert to a previous version of the bootloader.
[Samsung Galaxy S9  Guides, News, & Discussion] tti5972:
I meant the different U1 versions, not U1 vs U versions. As i said before, the 960U1 versions on updato have many diferent versions that are tagged to Tmobile,Verizon, ATT, XAA, etc.

Seems that if i flash XAA, i will have a proper U1 build. If i flash a t-mobile tagged U1, i will have a U1 with Tmobile user-data? What is userdata? I am flashing because i have wonky signal currently and think the different builds will fix my issue. Why flash tmobile U version if i can just leave it at the U1 version with t-mobile userdata (so i dont do something i cant revert from beacuse the bootloader goes to u2)?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
The only actual U1 build is XAA. The userdata contains some settings and bloatware for the specific carrier. It doesn't guarantee that all carrier features will work though. If you want to clear up any possible issues, you will want to factory reset the device, skip through the setup, enable Developer Options, enable USB Debugging, then boot to download mode and flash. Once on U1, you can either stay on that or again, skip through the setup, enable Developer Options, enable USB Debugging, and then flash the U build for your carrier or the carrier build you want. Do not flash the HOME_CSC! Always use the OYN CSC's when flashing.
[Samsung Galaxy S9  Guides, News, & Discussion] tti5972:
Got it so to be safe- dont flash U1(Verizon) just flash U1(XAA) and then go through the steps.

Dont flash Home_CSC, got it. Thanks so much for your time and responses. They have been very helpful.

I dont think there are any carrier featuers that i really care about - i just want better signal. Should i still flash the carrier version or stay on U1?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
I would say then, stick with the U1. Although the firmware updates are slower, they usually are more stable and polished. You still get band 71 and WiFi Calling on T-Mobile with the U1 firmware, which also makes it the best alternative for T-Mobile users. With Verizon, I am not sure. It might be worth trying for a few days though on the XAA U1 to see if you see any improvements. If not, then flash to the Verizon U.
[Samsung Galaxy S9  Guides, News, & Discussion] tti5972:
got it - thanks so much for your time and responses. they are very much appreciated!
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
No problem.
[Samsung Galaxy S9  Guides, News, & Discussion] caleesi:
Hi everyone,

I have an S9+ purchased through AT&T and unlocked. I am now using this phone on T-Mobile.

Before seeing this thread, I attempted to flash T-Mobile firmware onto the device before flashing U1 firmware.

I tried flashing U1 firmware afterwards but I keep getting fail messages. I read that if I have v2 bootloader, it will not be possible for me to flash U1. However, I don't know how to check what version my bootloader is.

Android Version 8.0.0

Samsung Experience version 9.0

Broadband version G965USQS3ARG8

Kernel version 4.9.65-13916502

Build number R16NW.G965USQS3ARG8

Will it still be possible for me to flash U1 firmware, and subsequently T-Mobile firmware?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
Your bootloader version is v3. You can tell that from the 3 in 3ARG8. There is no U1 with the v3 bootloader so you are stuck. Your best bet for now would be to do a factory reset and reflash the TMB U. Until the U1 comes out with a firmware with the v3 bootloader, you are more than likely going to be stuck with issues. ETA for that update is the end of September at the earliest.
[Samsung Galaxy S9  Guides, News, & Discussion] caleesi:
Thanks for the quick reply! Do you know where I could get updates regarding release of U1 firmware for v3 bootloader?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
When it comes out, a lot of people here will be all over it and a new thread for it will more than likely pop up.
[Samsung Galaxy S9  Guides, News, & Discussion] jtbrown91:
Help!!! Trying to Flash my Sprint S9+ and I Don't Know What I'm Doing

I desperately need some help here. I have a general idea about what I'm doing, but not enough knowledge to not screw this up. I have a Sprint branded SM-G965U S9+ with the Software version G965USQU3ARH3 and I want to flash the U1 unlocked firmware to the phone. However, I have never done this before and don't want to brick my phone. Any pointers would be great. I've tried a few guides already to no avail. Any help would be appreciated. Thanks!!
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
You won't be able to successfully flash your device to the U1 and then another carrier firmware until the U1 firmware is updated to the v3 bootloader. Your device currently has the v3 bootloader, which is not possible to revert to a previous version. The

3

in

3

ARH3 is your bootloader version.
[Samsung Galaxy S9  Guides, News, & Discussion] jtbrown91:
Do you know which bootloader the AT&T firmware is currently using? I would at least like to switch which carrier bloatware is sucking the joy out of my life.
[Samsung Galaxy S9  Guides, News, & Discussion] Venom0642:
Bootloader v3 AT&T is using and all the other carriers as well, except the unlocked firmware.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
Attempting to cross-flash without flashing to the U1 first, is not recommended. If you do decide to though and it definitely isn't recommended. Make sure you factory reset the device first.
[Samsung Galaxy S9  Guides, News, & Discussion] wm94.smith:
I'm relatively new to flashing my phone, and Odin in particular. Ultimately, I want to be able to get my T-Mobile S9 G960U (unlocked by T-Mobile) to work for a friend on Verizon. That brought me here.

I donloaded G960U1UES2ARF4_G960U1OYM2ARF4_XAA from sammobile. I setup the S9 to Download / Odin mode. I map BL, AP, CP, and CSC to their respective files. Connect the phone and select Odin Start. The S9 display then ends with "SW REV CHECK FAIL : [abl]Fuse 3 > Binary 2. Am I correct that this is because my phone is bootloader version 3 and this file (latest one available) is bootloader version 2?

Is there any other way I can get this phone usable on Verizon?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
The bootloader version is identified by the 5th character from the end of the firmware version. The firmware you downloaded has the v2 bootloader, which is the highest bootloader released so far for the U1 firmware. A lot of the carrier U firmwares have moved to the v3 bootloader. If your device has the v3 bootloader, you will not be able to flash to the U1 firmware, which is crucial in successfully converting to another U firmware than the one currently installed on your device.
[Samsung Galaxy S9  Guides, News, & Discussion] jtbrown91:
Any idea when the U1 firmware will be updated to v3?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
There is no set date, but the past couple of U1 updates were about 3 months apart. The end of September is currently what most are guestimating but there is no guarantee or announcement stating when it will actually come.
[Samsung Galaxy S9  Guides, News, & Discussion] wm94.smith:
Without flashing to U1 and back to U, is it expected that this phone wouldn't work with a Verizon SIM?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
The reason to factory reset and then flash to U1 from a U firmware to then flash a different U firmware is, to clear out the carrier bloat and settings. The U1 supports every US in a limited capacity, which is why it makes a good stepping stone. Flashing from a U directly to a U can leave a lot of stuff behind, which can cause a lot of issues. Most common, at least from what I have seen, is the boot logo doesn't change, band support doesn't change, and in some cases, no data connectivity at all.

You can put a SIM in any unlocked device, regardless of the firmware, and it should work as long as the phone and SIM support some of the same cellular bands.
[Samsung Galaxy S9  Guides, News, & Discussion] wm94.smith:
This is what I was expecting as well. When my friend puts her Verizon SIM in, it is showing no (cellular) data. The phone still has the T-Mobile splash screen. That isn't really an issue, but the phone just isn't connecting to Verizon towers for some reason. The 960U supports all US carrier bands, so that shouldn't be an issue like in generations past.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
What bands are supported and what are enabled are two different things. The U firmwares do have different available bands. Some enable CDMA, some don't. U1, TMB U, and TMK U have band 71 enabled where the rest don't.
[Samsung Galaxy S9  Guides, News, & Discussion] wm94.smith:
I hadn't thought about different bands being supported. I simply looked at the hardware capabilities. I'm at the Verizon store right now - I'll use them to get this unlocked S9 working on their network. If t-mobile bloatware persists, I'll clean it up once ver3 bootloader is available.
[Samsung Galaxy S9  Guides, News, & Discussion] wm94.smith:
What I didn't realize about Verizon is that it isn't simply moving the SIM into the new phone. The network also maps the IMEI to the individual SIM. That's why it didn't work the other day simply moving the SIM. Similarly, once that is accomplished, the network will push the Verizon bloatware onto the phone at a future update.

Does this make sense? Just want to convince myself of what the store rep was telling me before investing more time into this switch.
[Samsung Galaxy S9  Guides, News, & Discussion] ChongoDroid:
I don't know how it works but I know the t mobile firmware allowed me to uninstall the bloat not just disable them.

when using 960W firmware you could disable it but not uninstall it. Also some functions are able to be uninstalled such as the "anti virus" that's bundled in device management.

in fact, since uninstalling it when I click "optimize" my phone I can only get to 90/100 because the "AV" isn't even installed lol
[Samsung Galaxy S9  Guides, News, & Discussion] francescobrockman:
No, the U1 is not the same as the U minus the userdata. If that was the case, there would be no need to flash to the U1 from a U build to switch to another U build than originally on. If the U1 build isn't listed as XAA, then it isn't a U1 build. No proper U1 build comes with a userdata.
[Samsung Galaxy S9  Guides, News, & Discussion] mgoyzueta:
s9 unlocked to verizon for wifi calling.

Hi. just found the forum and started going through all the pages, nevertheless i'm giving it a shot with this post.

I was wondering if there is any way to get wifi calling and others in an unlocked S9, if so can someone point me in the right directions for the link of the verizon firmware and steps to do so (I'm familiar with Odin?

if you need more info a bout my phone version let me know but i guess I'm in U1

any help will be greatly appreciated

Thanks
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
It is actually quite simple in most cases. I am not sure if Verizon restricts their features based on where you purchased your device. If you are not on the U1 firmware, you will need to flash to that first. Just about every firmware you will need can be found at either Updato, SamFirm, and in the OP of most threads around here. If you are on the U1 firmware, then flashing to the VZN U firmware will be pretty simple.

Factory reset your device, skip through the setup (not entering anything or connecting to WiFi) to enable Developer Options and USB Debugging. Boot the device into download mode, connect it via USB, and install the drivers for your device. Load up the modded or patched ODIN once the drivers are installed and after you have disconnected and reconnected your device. Load up the 4 files needed in their correct positions within ODIN. DO NOT use the HOME_CSC! Load up the OYN CSC because this is needed to ensure a proper conversion. Flash! When the device reboots, you should see the Verizon boot animation and then seet the setup for your newly converted device.
[Samsung Galaxy S9  Guides, News, & Discussion] mgoyzueta:
Thanks I just confirmed I'm in U1 ARF4 firmware. So I should just be able to flash the VZN one. I got the phone from Samsung (cheaper and also got student discount). But I wont do the conversion if I don't get wifi calling. I'll wait to see if someone can confirm it works.

Thanks !!!!