I tried to unlock my OEM BOOTLOADER UNLOCK option by waiting 168 hours withour rebooting my phone and still didn't get that option. I read somewhere to downgrade back to DECEMBER 7.1 NOUGAT release and then wait for 168 hours for OEM UNLOCK option to be available. When I tried downgrading, I got this option. Does anyone have any proper idea or solution for this fix?
noob_coder said:
I tried to unlock my OEM BOOTLOADER UNLOCK option by waiting 168 hours withour rebooting my phone and still didn't get that option. I read somewhere to downgrade back to DECEMBER 7.1 NOUGAT release and then wait for 168 hours for OEM UNLOCK option to be available. When I tried downgrading, I got this option. Does anyone have any proper idea or solution for this fix?
Click to expand...
Click to collapse
If you upgraded your bootloader you can not go back.
I would flash different build and wait 168.
Example once you update example once go to xx1 to xx2 you can only flash xx2 roms.
I have many different roms with out issue.
When updating I remove my sim card.
Sent from my SM-A730F using xda premium
mchlbenner said:
If you upgraded your bootloader you can not go back.
I would flash different build and wait 168.
Example once you update example once go to xx1 to xx2 you can only flash xx2 roms.
I have many different roms with out issue.
When updating I remove my sim card.
Sent from my SM-A730F using xda premium
Click to expand...
Click to collapse
ok then suggest me some official yet FLASHABLE rom for my device. I am pasting my current build and rom version. I downloaded the SAUDI ARABIAN version as I am in KSA and bought the phone from here. But downgrade didnt go well. Today I updated to the latest security update which was pending for the last 3 days. I think its some MAY UPDATE. Anyhow I am pasting my ROM version. Kindly suggest me the new official rom so I can flash it all the way and wait 168 hours as per your suggestion and check if OEM UNLOCK option appears or no. By the way I downloaded the official rom from www.updato.com
I need your assistance to learn these XX2 XX1 and baseband issues as I have switched to Samsung phones after 5 years and seems like whole lot has changed ever since and I also happen to forgot the Samsung way of rooting and ****. In the image where I can find XX2 or XX1 of my own Rom version? Its saying XXU2 and ARE1 for BASEBAND and ARE2 for BUILD NUMBER.. You meant XX2 = XXU2 ? As I dont see any XX2 directly in my Phone ROM info.
Very simply once you update to xx2 you can't go back to xx1 these are example.
I have updated to other stock roms and I did update xx2 and update so I can update to Oreo when it comes available .
Never had any problems with unlocking bootloader.
Before doing this like root ect I would read what I have posted many many times before how root this phone.
Sent from my SM-A730F using xda premium
mchlbenner said:
Very simply once you update to xx2 you can't go back to xx1 these are example.
I have updated to other stock roms and I did update xx2 and update so I can update to Oreo when it comes available .
Never had any problems with unlocking bootloader.
Before doing this like root ect I would read what I have posted many many times before how root this phone.
Sent from my SM-A730F using xda premium
Click to expand...
Click to collapse
With all due respect, your English seems to be a lil bit poor or may be you wrote it too fast, as I didnt understand somethings you said. Check your comment again. Like for example what do you mean to say to me by telling that you updated your ROM 3 times:
"I have updated to other stock roms and I did update xx2 and update so I can update to Oreo when it comes available "
Anyways, I have download and Flashed 1 latest XX2 KSA ROM 2 days ago and I am waiting for 168 hours to complete and see if OEM UNLOCK appears or not. I haven't inserted my sim Since this FLASH as you said so not to insert the sim. If this ROM doesn't work out for me then suggest me any EUROPEAN or US or other ASIAN XX2 ROM which you have FLASHED and used and got yourself the OEM UNLOCK option available.
Once you been locked out and you have reflash stock and white data.
You will need to insert sim card I believe.
When I got my phone I did not put sim card in I booted it and check allow oem unlocking in development section.
I went to download mode flashed TWRP.
Booted to TWRP reformat then from other sdcard I flash custom kernelv1 and root.
I have never been locked out ever.
Sent from my SM-A730F using xda premium
mchlbenner said:
Once you been locked out and you have reflash stock and white data.
You will need to insert sim card I believe.
When I got my phone I did not put sim card in I booted it and check allow oem unlocking in development section.
I went to download mode flashed TWRP.
Booted to TWRP reformat then from other sdcard I flash custom kernelv1 and root.
I have never been locked out ever.
Sent from my SM-A730F using xda premium
Click to expand...
Click to collapse
Ok I get it. You saying that when you bought your phone, your OEM UNLOCK option was already present. Right? Can you do me 1 small favor? Can you tell me the exact ROM VERSION, which COUNTRY ROM and what latest build/update version of the ROM you are having on your phone? I will download exactly the same like yours and then check if I get the OEM UNLOCK option.
Latest Hong kong.
Keep in mind I'm from usa I modified csc for s8 to work on my phone so could get volte working.
Their is no usa build.
Sent from my SM-A730F using xda premium
mchlbenner said:
Latest Hong kong.
Keep in mind I'm from usa I modified csc for s8 to work on my phone so could get volte working.
Their is no usa build.
Sent from my SM-A730F using xda premium
Click to expand...
Click to collapse
Then guide me how to modify the CSC for my A730F. And what is this VOLTE?
On HONG KONG note, I am going to download the HONG KONG ROM Version. Which Version should I download. I mean now I understand the XX1 and XX2 thing very well, but I mean there are many builds/month based releases even in XX2 ROMS. So should I download the most recent VERSION like MAY 2018 HONGKONG XX2 release or some months prior ??? I am pasting screenshot of 2 HongKong VER RELEASES. Let me know which 1 to FLASH. And should I flash using only AP or also do CSC because I am now having only 16GB total whereas my phone is 64GB. I read somewhere that I have to flash using CSC coz its going to refresh the partition tables and cra_p.....
X2 don't down grade.
Sent from my SM-A730F using xda premium
mchlbenner said:
X2 don't down grade.
Sent from my SM-A730F using xda premium
Click to expand...
Click to collapse
Seems like you never read my whole comment or simply you dont want to assist me. My comment had 2 questions in it.
Anyways. I ll figure it out
thank you for your unexpected assistance which didnt help a lot.
noob_coder said:
Then guide me how to modify the CSC for my A730F. And what is this VOLTE?
On HONG KONG note, I am going to download the HONG KONG ROM Version. Which Version should I download. I mean now I understand the XX1 and XX2 thing very well, but I mean there are many builds/month based releases even in XX2 ROMS. So should I download the most recent VERSION like MAY 2018 HONGKONG XX2 release or some months prior ??? I am pasting screenshot of 2 HongKong VER RELEASES. Let me know which 1 to FLASH. And should I flash using only AP or also do CSC because I am now having only 16GB total whereas my phone is 64GB. I read somewhere that I have to flash using CSC coz its going to refresh the partition tables and cra_p.....
Click to expand...
Click to collapse
OK.. Do you have any idea about about Unlocking OEM if you have FRP LOCK OFF. I managed to unlock my FRP but still OEM LOCK is ON..
If your unlocked before you will be still unlocked bootloader.
Download the latest rom.
Sent from my SM-A730F using xda premium
Related
I have the stock rom with no root (C6603) running android 4.1.2 on build number 10.1.A.1.434, it refuses to update to 4.2.2 over the air or using sony pc companion, I avoided rooting this time because I have apps the don't work when the phone is rooted (banking), I'm with virgin media but the phone is unlocked, is there a way that I can get this update without having to root the phone??
thank you for your time
There is no update to 4.2.2 for UK unbranded handsets. I assume that is what Virgin supplied you with.
Enter *#*#7378423#*#* in the dialler then look in Service Info -> Software Info. If your Customisation version is 1270-7689, then you have a UK unbranded device and cannot officially update yet.
You can download one of the many ftf available in the general section and flash it with flashtool however. That does not require root.
Sent from my C6603 using Tapatalk 2
Here is a link to change the customisation number of your device (root required) that will make PC companion believe you have an available update to download. I tried this amd it worked first time
http://forum.xda-developers.com/showthread.php?t=2311211
However if you do not want to root the devixe, then simply using flashtool and your stock 4.2.2 .ftf file you will have no problem achieving what you wish
Hope it helps
Sent from my C6603 using xda app-developers app
Unbranded UK users are being completely ignored by sony
I'm in the same boat as you, haven't found the time/patience to flash a stock firmware that actually receives updates. Unbranded UK users are being completely ignored by sony.
I'm already feeling bad for buying my phone via expansys on release.
SleepingTurtle_I said:
I have the stock rom with no root (C6603) running android 4.1.2 on build number 10.1.A.1.434, it refuses to update to 4.2.2 over the air or using sony pc companion, I avoided rooting this time because I have apps the don't work when the phone is rooted (banking), I'm with virgin media but the phone is unlocked, is there a way that I can get this update without having to root the phone??
thank you for your time
Click to expand...
Click to collapse
zunido said:
I'm in the same boat as you, haven't found the time/patience to flash a stock firmware that actually receives updates. Unbranded UK users are being completely ignored by sony.
I'm already feeling bad for buying my phone via expansys on release.
Click to expand...
Click to collapse
Why not just flashing an 4.2.2 rom via flashtool. No root required.
Sent from my C6603 using Tapatalk 4 Beta
I live in Portugal, should I flash the Portuguese unbranded firmware or the Spanish which is in the latest version?
Do I have to delete my data to flash the new firmware?
... sorry for asking, I know that somewhere in XDA there are adequate answers, its just that it would be much nicer if Sony would just release the unbranded firmware for all unbranded Xperia Z's! I'm a software developer myself, and cannot think why, after Sony releasing the latest firmware in the UK (branded), would not release the unbranded version since the only relevant think is the country customization which must already have been achieved in the branded firmware.
dante501 said:
Why not just flashing an 4.2.2 rom via flashtool. No root required.
Sent from my C6603 using Tapatalk 4 Beta
Click to expand...
Click to collapse
zunido said:
I live in Portugal, should I flash the Portuguese unbranded firmware or the Spanish which is in the latest version?
Do I have to delete my data to flash the new firmware?
... sorry for asking, I know that somewhere in XDA there are adequate answers, its just that it would be much nicer if Sony would just release the unbranded firmware for all unbranded Xperia Z's! I'm a software developer myself, and cannot think why, after Sony releasing the latest firmware in the UK (branded), would not release the unbranded version since the only relevant think is the country customization which must already have been achieved in the branded firmware.
Click to expand...
Click to collapse
Well I don't know of there is a Portuguese one. I honestly flashed a Chinese stock rom and i just check I have Spanish and also Portuguese languages. U really can flash any stock 4.2.2 rom u like. I don't know why unbranded devices don't get an update mine is unbranded too and I had to flash a stock firmware. But it wasn't a big deal. And u don't lose if u don't choice wipe data ur data but there some ppl that had severely issues flashing without full wipe. My flash went without any issues or data wipe. But I can't 100% promise it will work by u without issues too.
Sent from my C6603 using Tapatalk 4 Beta
Flash tools for mac or linux
If I have the time, I'll flash my phone this weekend...
Do you know what tools I can use in mac or linux? The official stuff only works well on windows. I know there's a flash tool for mac but there are no up-to-date tutorials, maybe I'll risk it, this 2 firmware updates behind is not a comfortable place to be.
dante501 said:
Well I don't know of there is a Portuguese one. I honestly flashed a Chinese stock rom and i just check I have Spanish and also Portuguese languages. U really can flash any stock 4.2.2 rom u like. I don't know why unbranded devices don't get an update mine is unbranded too and I had to flash a stock firmware. But it wasn't a big deal. And u don't lose if u don't choice wipe data ur data but there some ppl that had severely issues flashing without full wipe. My flash went without any issues or data wipe. But I can't 100% promise it will work by u without issues too.
Sent from my C6603 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Sadly for Mac I have no clue to be honest. And yeah the 2 softwares below make a difference they slightly calibrated the screen even more and also camera a little bit more. This how the phone should had been released.
Sent from my C6603 using Tapatalk 4 Beta
yeah, my version is
United Kingdom Generic UK 1270-7689 10.1.A.1.434 R14A 10.1.A.1.434 R14A
basically the unbranded and yes I bought it pre-paid from virgin media as I had a contract with them and could get the phone cheaper than I could get it online, find this pretty insulting that they have just ignored a huge portion of their consumers again, they did this with the last phone I had with them which they actually canceled the updates past android 2.1 even though people had 2.3.7 running on it fine at the time and even have jb 4.1.2 running (partially from the sd card of the phone) on that handset, sony release great devices and just leave them with little to no support, I'm tempted to boycott them in the future if this is the legacy they wish to leave behind, very sad since they have well polished hardware, any news on a possible release date for us ?
Im in the same boat and have a generic UK device stuck on 4.1.2 , what stock ROM is recommended to flash onto UK devices so they still receive OTA Updates etc? , really do not want root on the device at the moment due to Sky Go apps etc.
Cheers
Gavin
On wife's G gen2 the stage fright update prompts all the time to install...every time it fails then reboots...after reboot states it failed and no changes were made.
It is locked, not rooted, all stock 5.02, has never been unlocked.
I think it is xt1064 model.
Can I flash a stock rom with locked bootloader?
Will 16gb Gen 3 models be available for sale again?
Sent from my MotoE2(4G-LTE) using XDA Free mobile app
jpconard said:
On wife's G gen2 the stage fright update prompts all the time to install...every time it fails then reboots...after reboot states it failed and no changes were made.
It is locked, not rooted, all stock 5.02, has never been unlocked.
I think it is xt1064 model.
Can I flash a stock rom with locked bootloader?
Will 16gb Gen 3 models be available for sale again?
Sent from my MotoE2(4G-LTE) using XDA Free mobile app
Click to expand...
Click to collapse
ok goto about phone and get the model xt106x ? the build no. and system version - I will point you to correct FULL rom (with sf fix if possible) Full xt106x roms in my signature
yes you can flash a stock rom with locked bootloader ( normally same or higher build version) you can not go backwards or down (downgrade with locked BL)
yes they will but its a IF and when (wait and see) amazon normally a good indication of when..
Sorry for late reply, have been out of town...
Fairly sure it is XT1064, it is U.S. version 3G...
Build is LXB22.46-28
System version is 22.21.28.titan_retuaws.retuaws.en.US retus
Android 5.02
Sent from my MotoE2(4G-LTE) using XDA Free mobile app
I found your ROMs with stage fright already included in another thread that you created and followed those directions and it seemed to work fine.
Although I noticed the Google Services is back to using up most of the battery where usually the screen uses most of the battery. But that is other issue.
Sent from my MotoE2(4G-LTE) using XDA Free mobile app
To those who flashed the T-Mobile MM6.0 firmware published last week and locked up your SIM network, please try flash the Modem extracted from the 5.1 firmware with Odin under the CP option, make sure "re-partition" is unchecked. It will get your signal back. It was tested on my device, and so far so good. We can use the T-Mobile firmware finally
download the modem from here
https://www.dropbox.com/s/fpkeyps54bzy2l6/modem.bin?dl=0
By chance is this a similar instruction compared to the reddit thread? It seems theres alot of questions surrounding the unlocked version, in reference to this variant that came out of the box, for me as g920tzkax, then updated to g920tueu3cok1.
I agree with this method as it worked for me. I didnt factory reset i just flashed both mm and modem with oden. The only thing for me was it took 2 reboots to get lte to kick in. We unlocked users of this variant should create a thread
ejbmvp said:
By chance is this a similar instruction compared to the reddit thread? It seems there a alot of questions surrounding the unlocked version, in reference to the c spire version that came out of the box for me as am g920tzkax, then updated to g920tueu3cok1.
I agree with this method as it worked for me. I didnt factory i just flashed both mm and modem with oden. The only thing for me was it took 2 reboots to get lte to kick in. We unlocked users should create a thread
Sent from my SM-G920T using XDA-Developers mobile app
Click to expand...
Click to collapse
yes, I got idea from that thread, but I didn't see a post here. there is not much information about the unlocked version and it took me quite a lot time to do research and trial
for additional detail and information you can refer to the URL below, hope I didn't break anything to post external link here
https://www.reddit.com/r/GalaxyS6/comments/4eazdg/nont_mobile_smg920t_need_some_insight/
I had chat with Samsung service support a couple of hrs ago and the guy said we unlocked G920T will likely get the OTA push in next two months. sigh...
Well at least we have mm, just with minor bloatware
ejbmvp said:
Well at least we have mm, just with minor bloatware
Click to expand...
Click to collapse
i have also flashed this customized room and used it for days. it runs all right
http://forum.xda-developers.com/gal...xtrestolite-deodexed-mod-edition-1-0-t3094423
Oh awesome, thanks for that tip. Ive been scared to flash any custom roms since having this phone because of being an non-popular variant.
Sent from my SM-G920T using XDA-Developers mobile app
this is the Samsung factory unlocked version will get rid of all bloatware
simply download firmware extract put files in the correct spots in the modded odin and flash first boot will take about 4 min or so
this is for the galaxy s9 sm-g960u models
firmware--- TAKEN DOWN NO LONGER SUPPORT THIS POST
PLEASE USE UPDATO.COM TO FIND ANY FIRMWARE YOU MAY NEED
modded odin--- http://www.mediafire.com/file/gp62v60z05mfdkw/Modded_odin_3.13.1.zip
THREAD CLOSED AS I HAVE MOVED ON TO ANDROID P THREAD LOCATED HERE
https://forum.xda-developers.com/ga...ries--other-development/9-0-g960u-s9-t3858248
What security patch is it? What month?
Psyscope said:
What security patch is it? What month?
Click to expand...
Click to collapse
Feb 1st 2018
Psyscope said:
What security patch is it? What month?
Click to expand...
Click to collapse
Update got May 1st update on att sm-g960u
The files are no longer available. Can you repost them.
I cannot for the life of me figure out whats going wrong. I bought SM-G960UZKAXAA (US unlocked s9). I wanted VZW's advanced calling features so I put SM-G960U on the device (instead of the SM-G960UI, as it should be). I've used the special Odin and stock firmware to revert, and it seems to be successful, according to Odin, but nothing ever changes. Still get the VZW splash screen and other VZW stuff. HELP!?
dezidez87 said:
I cannot for the life of me figure out whats going wrong. I bought SM-G960UZKAXAA (US unlocked s9). I wanted VZW's advanced calling features so I put SM-G960U on the device (instead of the SM-G960UI, as it should be). I've used the special Odin and stock firmware to revert, and it seems to be successful, according to Odin, but nothing ever changes. Still get the VZW splash screen and other VZW stuff. HELP!?
Click to expand...
Click to collapse
Your stuck on v2 bootloader as carrier bound devices released them first
Ypu will have to wait til u1 firmware releases a update to the v2 bootloader then everything should go back as normal
can you update the links?
also, how come one person said FED 1 2018 and another person said May 1st security patch?
if this is the same U1 firmware available in other posts, why flood xda dev with so much duplicate posts?
eastsidebiz said:
can you update the links?
also, how come one person said FED 1 2018 and another person said May 1st security patch?
if this is the same U1 firmware available in other posts, why flood xda dev with so much duplicate posts?
Click to expand...
Click to collapse
I'm the one who made this thread and put them 2 post so it wouldn't be flodding anyone
And 2 the second pic I ended up getting may update and just updated the post as I went and made a separate post on how to update to may
david11000 said:
this is the Samsung factory unlocked version will get rid of all bloatware
simply download firmware extract put files in the correct spots in the modded odin and flash first boot will take about 4 min or so
this is for the galaxy s9 sm-g960u models
firmware--- http://www.mediafire.com/file/a7lmo33st114xc6/SM-G960U1_1_20180228143240_rjycp5j0hq_fac.zip
modded odin--- http://www.mediafire.com/file/gp62v60z05mfdkw/Modded_odin_3.13.1.zip
Click to expand...
Click to collapse
I have a Snapdragon S9 with bootloader still locked... Sm-g960u. Feb 1 security patch. I just want to make sure my bootloader doesn't have to be unlocked before I flash this... So, I'm good to go, right?
jflow36 said:
I have a Snapdragon S9 with bootloader still locked... Sm-g960u. Feb 1 security patch. I just want to make sure my bootloader doesn't have to be unlocked before I flash this... So, I'm good to go, right?
Click to expand...
Click to collapse
Yes go for it, the bootloader does not have to be unlocked.
In fact the bootloader can't be unlocked lol
caseyatbt said:
Yes go for it, the bootloader does not have to be unlocked.
Click to expand...
Click to collapse
Thanks for getting back to me...
jflow36 said:
I have a Snapdragon S9 with bootloader still locked... Sm-g960u. Feb 1 security patch. I just want to make sure my bootloader doesn't have to be unlocked before I flash this... So, I'm good to go, right?
Click to expand...
Click to collapse
At the moment there are no unlocked bootloaders for the *snapdragon* S9's....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................just wait for the OEM update yo
eastsidebiz said:
At the moment there are no unlocked bootloaders for the *snapdragon* S9's....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................just wait for the OEM update yo
Click to expand...
Click to collapse
Actually, there are... Not in the US though. In Hong Kong and somewhere else.
jflow36 said:
Actually, there are... Not in the US though. In Hong Kong and somewhere else.
Click to expand...
Click to collapse
What?? where have you found unlocked BL's for Snapdragons?
Im aware of the regional differences for these devices. SD is the americas and exynos are the outside
eastsidebiz said:
What?? where have you found unlocked BL's for Snapdragons?
Im aware of the regional differences for these devices. SD is the americas and exynos are the outside
Click to expand...
Click to collapse
I think 9600 sold in China and a few other have this option. I don't know if anyone is doing anything with this however.
ChongoDroid said:
I think 9600 sold in China and a few other have this option. I don't know if anyone is doing anything with this however.
Click to expand...
Click to collapse
u can read all the way back to before the s6 was released to see all thats been looked at lol
just bcuz theyre snapdragon doesnt mean it works for us unfortunately
Hi David
Hello i Just am in Wonder. I lately have recieved à gift S9 sm-g960x but i was told that it is à démo live unit i tried to flash it with Odin in order to use it with à simcard but later on it was stuck and iit switched itself on and off.
Please help. By thé way i searxhed for thé right firmware but i only found g960f so i used it. And here I am in trouble.
Slitsh123, That's an unallowed subject on XDA
If I use Odin to install One UI, will it root my phone and is the lastest update already available to install because I'm finding ways to install it and it says install an early build, and will it go to the lastest build or will it be in the early build?
Omar3722 said:
If I use Odin to install One UI, will it root my phone and is the lastest update already available to install because I'm finding ways to install it and it says install an early build, and will it go to the lastest build or will it be in the early build?
Click to expand...
Click to collapse
If you install official rom no he will not root.
Generaly it prevent going backward on rom
Sent from my [device_name] using XDA-Developers Legacy app
Omar3722 said:
If I use Odin to install One UI, will it root my phone and is the lastest update already available to install because I'm finding ways to install it and it says install an early build, and will it go to the lastest build or will it be in the early build?
Click to expand...
Click to collapse
First of all, what version of the Note 9 do you have? US model or international model?
Mr. Orange 645 said:
First of all, what version of the Note 9 do you have? US model or international model?
Click to expand...
Click to collapse
I have the US model
Omar3722 said:
I have the US model
Click to expand...
Click to collapse
Is it a carrier model or the U1?
Mr. Orange 645 said:
Is it a carrier model or the U1?
Click to expand...
Click to collapse
it's the AT&T model
Omar3722 said:
it's the AT&T model
Click to expand...
Click to collapse
Ok. You're new here, so I'll help you out. But next time, search for your answers before starting a new thread. We already have at least two threads on how to install the One UI Beta, and another thread that's is a discussion of the beta and I cludes instructions on how to get it.
Main thread:
https://forum.xda-developers.com/galaxy-note-9/how-to/note-9-pie-alpha-t3849980
And these two are threads other people started stating how they installed it:
https://forum.xda-developers.com/galaxy-note-9/how-to/how-one-ui-beta-verizon-note-9-t3877076
https://forum.xda-developers.com/galaxy-note-9/how-to/how-to-beta-update-note-9-u1-t3875949
You need to read those threads to understand what you're doing, the pros and cons, and how to downgrade if needed. And please for the love of God, if you install it and have some bugs, don't start a new thread. Post those issues in the main discussion. One. We've probably already discussed it and maybe even found a solution. Two, it makes it easier to track.
Ok, so you have an ATT Note 9. You have two options for Pie. One, you can flash the leaked C builds and keep all your carrier features and bloat. Such as WiFi calling, VoLTE, RCS messaging, and all those lovely ATT apps, and that gorgeous ATT boot animation and jingle.
Or, you can use the modified ODIN to flash the U1 firmware and get on the official BETA Z builds. This will be a clean OS with no carrier bloat, apps, or boot animations. But it will mean no WiFi calling or VoLTE, etc.
If you go the C build route to keep carrier features, you will have to use ODIN to downgrade to Oreo each time you want to sideload the newest leak.
If you go the official Beta route and don't care about those carrier features, then you will use ODIN once to flash the U1 firmware and then you can update via OTA each time an update is pushed.
Which one do you want to do?