yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S9  Guides, News, & Discussion] redmessengerbag:
Thanks for your response. After dealing with some connection errors, I finally used an older computer I had and was able to flash the TMobile 3ARG7 firmware (BL/AP/CSC/CP). Odin flashed everything and passed, however, nothing seems to have changed. My goal was to flash to get wifi calling working, but still doesn't work and no new TMobile apps were installed.

Can I install the firmware of the latest U1 onto my phone with 3ARG7? I just don't want to brick if possible.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
When flashing to a different firmware, you should always flash to the U1 firmware first, then to the U firmware. The U firmware should also have a userdata file for bloatware, settings, etc. WiFi Calling will work with T-Mobile on the U1 firmware. Did you leave your T-Mobile SIM in while flashing? Was the firmware you were trying to flash contain the same bootloader version or newer? Did you use the modded or patched Odin 3.13.3?
[Samsung Galaxy S9  Guides, News, & Discussion] redmessengerbag:
I left my T-Mobile SIM in the phone while flashing. I downloaded the same release from sammobile but labeled as Tmobile. I didn't flash the User Data file though (I didn't want to wipe data). I still have Android 8 from last august on my phone, if I use the latest U1 file, which is G960U1UEU3CSA8, will it update the phone to Android 9 and to unlocked?

I don't need Tmobile U firmware, if I can go from my current AT&T 960U with Android 8 directly to U1 Android 9 by flashing G960U1UEU3CSA8, I would be happy! Is that ok to do?

I used the Patched 3B Odin
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
There is no TMB U1. That is a mixed firmware. Stay away from those. U1 firmware are only XAA.
[Samsung Galaxy S9  Guides, News, & Discussion] redmessengerbag:
I meant can I flash Android 9 U1 XAA, the newest version, directly onto my AT&T 3ARG7, which is android 8 still? I am aware that there is no TMB U1.

Thanks!

EDIT: did some more reading and it looks like any firmware should work (as long as bootloader is newer than what's on the phone). Didn't quite understand at first...

Also, I was hoping to not wipe data and use Home_CSC, but it looks like that might bring conflicts...so use CSC without home for wipe...I will try Home_CSC first to see result, if it doesn't work well, I will wipe data. lol
[Samsung Galaxy S9  Guides, News, & Discussion] m1batt1:
Going from 8 to 9 and going from U to U1 is a big step as far as software is concerned. I don't even know that you could manage to do that without a clean install. But even if it did work you would likely have some issues. So your best bet is to do a clean install. You can always back up using smart switch to save your info.
[Samsung Galaxy S9  Guides, News, & Discussion] carnivalrejectq:
Anybody know where I can find the latest cricket firmware for download? I can't find AIO on any of these websites whatsoever. EDIT: I can see some mixed ones on samsung-firmware.com when searching for G960U1 but it's confusing because cricket doesn't even have that , cricket is G960U. I thought G960U1 was XAA only. Why are there all these mixed ones? AIO only even shows up under G960U1 on that site which makes very little sense.
[Samsung Galaxy S9  Guides, News, & Discussion] redmessengerbag:
Thank you for sharing your thoughts. I did the install with Home_CSC last night. The phone booted and did the optimizing apps for a while, it recognized a carrier change, restarted the phone to reset network, and as far as I can tell, everything appears to be in working order.

What are some problems people often see? I am curious. So far with the limited use of the upgraded phone, everything appears to be in working order, and what I was after, WIFI calling on TMB is working as well. I wonder if it is because going to 9 from 8 does some more "resetting" without actually wiping data? I have no clue.

I would love to find out what problems people experience so I can keep an eye on it. But so far so good. If it doesn't work I'll just start over.
[Samsung Galaxy S9  Guides, News, & Discussion] m1batt1:
Hey if it worked then good! Typically if there are issues you'll get random force closes on system items. You might also get some weird battery drains because of conflicts. But like I said if you didn't then good for you.
[Samsung Galaxy S9  Guides, News, & Discussion] Youdoofus:
only problems occur from when people dont flash the regular csc and dont do a factory reset from what ive seen. or people flashing the wrong files or using the wrong Odin. Sometimes the files will flash and Odin will say successful, but the phone wont get past the Bootanimation or boot icon. I flashed the home_csc and was fine ever since. The U1 has been treating me pretty well
[Samsung Galaxy S9  Guides, News, & Discussion] sassydee23:
I need help flashing a new rom onto a att s9 sm-g860u with odin to bypass google verification. Does anyone know how to do this or have they done it before.
[Samsung Galaxy S9  Guides, News, & Discussion] Charkatak:
Hey,

ATT still doesn't provide their firmware to SamFirm or to Sammobile? We need to flash ATT branded S9 which got stock on Android 8 and never received updates although the ATT carrier is used. There are 2 choices:

1) Go with G960U1 using ATT as the csc - I believe the VoLTE, WiFi calling and other stuff should be working as the handset is from ATT and has its IMEI in the database of the carrier(at least that is the hope)

2) Go with G960U using USC as csc. US cellular should be similar and I know that this works on Note10 devices. Don't know if anyone tried this on ATT branded S9
[Samsung Galaxy S9  Guides, News, & Discussion] rekd0514:
Anyone have ideas why Odin 3.13.1 3B or 3.13.3 always fails to flash or gets stuck on setup connection with the latest U1 XAA firmware?

I have tried different USB cables, USB ports (2.0), computers, different firmware (oreo). I am trying to flash the Cricket version S9 to U1 to remove the bloatware. I tried every suggestion I can find on google and it won't flash.

Do I need to use Windows 7 maybe to get it to work? Does the phone need the bootloader unlocked? I'm out of ideas....
[Samsung Galaxy S9  Guides, News, & Discussion] xXErebuS:
Hello all,

I read through almost this entire thread and still have some questions - I am looking into buying the s9 on sale at cricket and flashing it so that it has access to the 66 and 71 bands (mostly 66 since we may try metro).

Can I flash a LOCKED device to U1 and keep on cricket until 6 months then ask them to unlock or would I need to flash back to their specific firmware? (I know I can buy an unlock code as well) This seems like a duh question since I know all they need is the IMEI but never hurts to ask.

Do they even have specific U firmware, seems like there isn't much out there for AIO/Cricket?

If I wanted to receive OTA updates from say Tmobile is it possible to go U1 then TMO U and essentially have a TMO phone on cricket, or would I need a TMO SIM?

Thanks!
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
You should unlock the device on the original firmware. It just makes it simpler. If you purchase the device in full, the carrier or retailer should be able to SIM unlock it for you. Once you flash to U1, you will have access to bands 66 and 71. If you go from U1 to T-Mobile U, then you will have access to RCS but it comes with T-Mobile's bloat.
[Samsung Galaxy S9  Guides, News, & Discussion] Coomer91:
hey guys, is it currently possible to flash from a G960N firmware to a G960F firmware without root or twrp?
[Samsung Galaxy S9  Guides, News, & Discussion] jpye:
I have a verizon G960U. I have read through the this thread and understand how to flash the U1 firmware.

My question is regarding the different U1 firmware's listed on Sammobile G960U1UEU7CSJ3 with a product code XAA or G960U1UEU7CSJ3 product code VZW. Which one to use and what is the difference?

Thanks
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
The U1 is XAA. If you want to correct U1 firmware, then you want XAA. The VZW is a Verizon CSC with the U1 base firmware. These hybrid firmwares don't always work for OTA's so you will want to stick to full official firmware versions if you want to take OTA's normally.
[Samsung Galaxy S9  Guides, News, & Discussion] jpye:
Is there any benefit to the hybird vzw firmware? Why does it exist?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
Some people like bloat. Some don't want their build to update either. My girlfriend is content to not go to Android 9 with her S9 Plus, so a hybrid firmware prevents that with a firmware mismatch.
[Samsung Galaxy S9  Guides, News, & Discussion] jpye:
So I went ahead and installed the U1 XAA firmware , and the phone seems fine but I don't have the same reception as before. I have no bars poor signal at home. With the stock rom I had 2 bars. I live in a fringe area.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
What you see for bars isn't always accurate for signal strength. There is no standard for -db level per bar of signal. If you had service before, then you should still have service in most cases. The radio firmware for the XAA will not be as tuned for Verizon as the Verizon firmware, but the usable signal received by the device should still be practically the same.
[Samsung Galaxy S9  Guides, News, & Discussion] bigrat:
Thanks for this thread.

I want to double-check here and verify before I flash, can someone confirm?

I have an ATT-branded SM-G965U (Galaxy S9+, Snapdragon, locked bootloader). My understanding is that because the U1 firmware is an official firmware, I can download the firmware with Frija, and flash to the phone with Odin without bricking or tripping Knox, and that this will turn my phone unbranded, removing all the carrier bloat.

Current Model: SM-G965U

Current CSC: ATT

In Frija, I should use:

Model: SM-G965U1

CSC: XAA

This currently seems to give me firmware SM-G965U1_1_20191016142701_wr1t3f7q6u_fac.zip.enc4

I should then factory reset my phone, then flash with this firmware. Does this sound correct?
[Samsung Galaxy S9  Guides, News, & Discussion] m1batt1:
You're spot on. You could try flashing in Odin without wiping first but I'm always a fan of starting with a clean slate.
[Samsung Galaxy S9  Guides, News, & Discussion] erick_gc:
AT&T S9 SM-G960U to SM-G960U1

Hi guys, I have one question, I got an AT&T S9 SM-G960U as a gift from a friend in the US and when i got back to Mexico simply can not update it, checking the OTA updates and Smart Switch always says it is up to date, but is on june security update, someone on reddit said that I should flash a 960U1 firmware so I can have ota updates here on Mexico, but this is my first Samsung phone and I'm lost with all variants on firmwares , went to sammoble and search 960U1 and find diferent carrier versions of the firmware. Can someone tell me which version can I use on my phone and if the patched 3.13.1 version of Odin is the right one for the job. Thanks
[Samsung Galaxy S9  Guides, News, & Discussion] m1batt1:
Look two posts back. The guy was asking how to flash an s9+. So replace 965 with 960 and follow the steps he outlined and you're good to go.
[Samsung Galaxy S9  Guides, News, & Discussion] erick_gc:
Thank you so much, i will try it
[Samsung Galaxy S9  Guides, News, & Discussion] erick_gc:
Last question

Hi, in Odin interface, there are 5 check boxes with 5 buttons, that matches the names of the MD5 files that frija downloaded, I have to select and check to flash those 5 files or only some of them? thanks
[Samsung Galaxy S9  Guides, News, & Discussion] guest592:
Can anyone confirm that by using the HOME_CSC file you do NOT have to factory reset and don't lose data, as the OP claims?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
If you attempt to convert from one firmware version to another (one carrier to another) without wiping, you will not get a proper conversion! If you are flashing the same carrier firmware, just an updated one, then it is safe to use the HOME_CSC.
[Samsung Galaxy S9  Guides, News, & Discussion] sweetboy02125:
NOt sure what you meant " flashing the same carrier firmware". If i have a unlock version U1 on Verizon and would like to flash U Verizon WITHOUT WIPE. Is that safe?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
It is safe, but to get a full and proper 100% conversion, you need to do that full wipe by not using the HOME_CSC. Using the HOME_CSC will preserve data that does need to be overwritten by the new firmware.
[Samsung Galaxy S9  Guides, News, & Discussion] flozge:
If you dont wipe, you will not get any OTA Updates
[Samsung Galaxy S9  Guides, News, & Discussion] droodski:
Why are all the links broken?
[Samsung Galaxy S9  Guides, News, & Discussion] sweetboy02125:
Sighhhhh, I'll keep U1 for now then. I spend more than 2 days to reset up all bankings, log ins, verifications...... hate to do it again unless buying new devices. Oh well
[Samsung Galaxy S9  Guides, News, & Discussion] MSMC:
Korea to U1

IS what I am trying to do possible? I have a Galaxy S9 Korean model (G960N) and was wondering if it were possible to flash it to US-Unlocked (G960U1) and if so which carrier could it be with? I intend to use T-Mobile but would love to have the phone unlocked. I saw somewhere before that Exynos processors are super tolerant when it comes to rooting and flashing firmware. I tried to used multiple modded odin versions (3.13.3/3.13.1 PatcheD and Raymond versions), and when I put in all the appropriate files and clicked start, I would get an immediate failure at PIT Initialization (or something like that) when NOT using the HOME_CSC but rather the regular CSC. When using HOME_CSC I get a tiny bit further to abl.elf and it just stops there. The phone doesn't change its screen and there is no failure state, just kinda sits there. Any help would be appreciated.
[Samsung Galaxy S9  Guides, News, & Discussion] m1batt1:
Not going to be possible since you're dealing with an Exynos processor because the U1 firmware is built for snapdragon chips. The firmware flashing that you reference is custom roms but they are designed for Exynos.
[Samsung Galaxy S9  Guides, News, & Discussion] MSMC:
Would I be able to use a G960U (for example the USA T-mobile varient) on this phone. or would that still not work? are there any English by default bloatware free firmwares that supports the Exynos processor? If you know of a site that shows what firmwares are compatible with what processors, that would be awesome.
[Samsung Galaxy S9  Guides, News, & Discussion] m1batt1:
The U firmware would be the same problem as all US variants are Snapdragon. I'm not aware of a site that will give you the information you seek and have never needed to look up Exynos firmware sorry.
[Samsung Galaxy S9  Guides, News, & Discussion] MSMC:
too bad...thanks for your time. I'll just deal with it, custom roms work...and the device is unlocked and can be used on t-mobile, so that's fun.
[Samsung Galaxy S9  Guides, News, & Discussion] guest592:
I want to go from a T-Mobile U firmware to U1 without wiping. What is improper about the conversion?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
Not wiping prevents a full conversion, because it leaves stuff behind that it needs to be over written by the firmware you are flashing.
[Samsung Galaxy S9  Guides, News, & Discussion] guest592:
Update - successfully flashed from T-Mobile U to U1 without losing data, by using the home-csc. Only thing is I needed to sign into Robinhood again and set up the phone password again and log into Samsung. Other than that everything works, I appear to have lost WiFi calling but expected that.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
WiFi Calling works on T-Mobile with the U1 firmware. If it doesn't work for you, then it is more than likely due to not wiping. You also risk breaking OTA's from not wiping.
[Samsung Galaxy S9  Guides, News, & Discussion] guest592:
I was mistaken, it just scrambled my settings icons and moved the WiFi calling button to page 2, but it's still supported. After using it for a few hours I haven't noticed anything off.
[Samsung Galaxy S9  Guides, News, & Discussion] Exaxoid:
Can't open the serial com port odin note 9 Any suggestions

Tried the Following

2 different pc

4 different usb cables

different odin and drivers
[Samsung Galaxy S9  Guides, News, & Discussion] wahooman63:
So this will turn my ATT version S9 into an unlocked version and remove all the ATT bloatware?
[Samsung Galaxy S9  Guides, News, & Discussion] MD5Hash:
A friend is offering to sell me his Verizon S9, but I've always heard that Verizon pumps up their phones with huge amounts of bloatware. I'd be using the device on T-Mobile, anyway. I think this thread would give me what I need, right? His version is a 960U and I'm looking to get the U1, which is the "factory unlocked" vs the "carrier branded unlocked" that all the U versions are?

Right now I have an S8 that I got from Amazon and it just reads G950U1, so I'm guessing that U1 on the S9 is what I want too?

This doesn't trip knox or root the phone, because these are signed firmwares? I used to do this a lot more in the S3 and Note 3 days but I've been out of the game for awhile. Haven't needed to load up Kies (heh, does anyone use Kies anymore or has it been completely replaced by Odin?) in a long time!
[Samsung Galaxy S9  Guides, News, & Discussion] ajairola:
This is what you need(it won't trip Knox or root), but make sure the phone is actually unlocked as the U1 software won't unlock it. Also after you flash the U1 firmware you can then Flash the T-mobile U firmware.
[Samsung Galaxy S9  Guides, News, & Discussion] nissansupragtr:
Hello, if I were to buy a ATT 965U device, would I be able to flash to 965U1 and use with CDMA bands on Verizon?
[Samsung Galaxy S9  Guides, News, & Discussion] kervol:
I have a T-Mobile branded S9 SM-G960U. I tried this and during the flash, it stops and gives me an error in Odin and phone. My current version is G960USQU2ARC6

Error on Odin: Set Partition then Fail!(Auth)

Error on phone is SW REV CHECK FAIL fused 2 binary 1
[Samsung Galaxy S9  Guides, News, & Discussion] eastsidebiz:
I dont think Verizon uses CDMA as much anymore.

Flash ATT version with U1, and you can use this on Verizon services. less video calling and other band specific services.

on my set up, U1 firmware, using both Tmobile and Verizon, I have LTE / GSM chosen on mobile networks and both works.

When I change it to CDMA i actually dont pull up signal via Verizon

---------- Post added at 12:03 PM ---------- Previous post was at 12:03 PM ----------

try on a non charging usb port and run the modded odin in admin mode
[Samsung Galaxy S9  Guides, News, & Discussion] kervol:
Thank you for your reply, How would I know if it's a non charging or charging? This is the cable that came with the phone.
[Samsung Galaxy S9  Guides, News, & Discussion] eastsidebiz:
Make sure the port your using doesnt have "SS" or "thunder logo"

I had that issue on my desktop, so I used my old laptop that had USB 2.0 and it flashed fine.

When you have the phone connected while its on, can you adb devices and see if its visible?
[Samsung Galaxy S9  Guides, News, & Discussion] kervol:
It will reboot the phone in download mode just fine using adb, I notice that I am unable to use another SIM in the phone, it will only work with my T-mobile SIM, maybe being SIM locked is the issue? Not sure because I have seen others flash fine.
[Samsung Galaxy S9  Guides, News, & Discussion] eastsidebiz:
but you said your model is a 960u?

the phone can be locked, but Ive never heard of the actual sim card being locked to the carrier.

Last i checked all s9 from the us region are unlocked. mine is a verizon version.

are you using the newest odin?

if the moderators allows this link, try this:

https://support.t-mobile.com/thread/144772

its post number 21, its step by step with links. (some links refer back here)

But i assisted a user thats almost on the same boat as you and the user replied that it works.

His issue was the version of his ODIN and he was using usb 3.0 ports
[Samsung Galaxy S9  Guides, News, & Discussion] yutaka001:
Is this step equivalent of using key combination to put phone into the download mode? If yes, can I just use the Volume Down + Bixby + Power instead of adb? I don't have adb on this PC. If not, what else does this do? Thank you.
[Samsung Galaxy S9  Guides, News, & Discussion] mjc4:
Okay so I have a brand new S9 Plus (SM-G965U) that I have submitted an unlock request to AT&T for. Once that goes through I would like to make this a T-Mobile phone. Is that as simple as just switching over the T-Mobile sim from my old phone? I want to make sure I have all T-Mobile features such as Wi-Fi calling etc and want all of the AT&T bloat gone including the AT&T logo when booting up. Does the phone need to be flashed and if so can someone explain in layman's terms what I have to do/which files I need? Thank you!
[Samsung Galaxy S9  Guides, News, & Discussion] ajairola:
Unfortunately it's not that simple. You will need to flash to a U1 Firmware then to the T-mobile U firmware. See this post (thanks [MENTION=7581642]jrockz3000[/MENTION]). The post is written for the S9 not the Plus so you will need to get the S9+ firmware from this thread (thanks [MENTION=3163377]iBowToAndroid[/MENTION]).
[Samsung Galaxy S9  Guides, News, & Discussion] alphakp295:
[/COLOR]

Was your phone sim locked by T-mobile? I'm planning on getting one from t-mobile, which means carrier locked. Do I need to get sim unlocked first? Will flashing this U firmware unlock the carrier lock?
[Samsung Galaxy S9  Guides, News, & Discussion] bzzybfrm313:
1. Yes

2. No

3. No:good:
[Samsung Galaxy S9  Guides, News, & Discussion] alphakp295:
thanks!! appreciate you replying back.
[Samsung Galaxy S9  Guides, News, & Discussion] treoless:
Is this the latest firmware? I flashed it and couldn't find any update thru update check
[Samsung Galaxy S9  Guides, News, & Discussion] jrockz3000:
It turns out that after I flashed to the TMO rom, it the TMO Rom locked the boot loader. Now I'm trying to get it back somehow to a U1 or at least the Samsung "U" version if there is one.

basically, when I first flashed to the "U1" I did test wifi calling and it worked fine. The only things that I am aware of currently that would be mssing from the "TMO" rom is you would not have TMO's Video calling or their Visual VM.
[Samsung Galaxy S9  Guides, News, & Discussion] rcloke91:
I haven't worked much with Samsungs before (mostly Nexii and OnePluses) and I feel as though I know the answer to this question already, but I won't need to flash back to the ATT firmware in order to sim unlock the device, right? I got it from ATT, flashed the U1 firmware, and using it until unlock code from ATT comes in.
[Samsung Galaxy S9  Guides, News, & Discussion] treoless:
Does the TMO rom have the Visual VM built into the stock dialer? Or do you still have to use the TMO Visual VM App?
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
Do you have USB Debugging enabled in the Developer Options? Are you using the nodded or patched Odin?
[Samsung Galaxy S9  Guides, News, & Discussion] Exaxoid:
Used patched b and regular look at picks
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
Is the firmware you are trying to flash have the bootloader version 2 or newer?
[Samsung Galaxy S9  Guides, News, & Discussion] Exaxoid:
n960usqs2csi3_n960uoyn2csi3_vzw
[Samsung Galaxy S9  Guides, News, & Discussion] Nightfox619:
I have 1 question and 1 Question only, Can I have my sim in the phone when I perform the Flash, This is the Scenario. It is a SM-g960U ATT, I am going to flash to G960U1, I read that you say to put the sim in later, but does leaving the sim in while flashing it change anything? When do I insert the T-Mobile SIM cause I do not have an ATT SIM at all.
[Samsung Galaxy S9  Guides, News, & Discussion] jcsww:
It is recommended to keep the SIM in the device you plan to use in it after flashing.