Question Should You Flash the Latest Software Or Flash All Previous Software Updates Incrementally - Samsung Galaxy S21 Ultra

Hello guys.
So I recently got a phone that's stuck with the August 2021 security patch. I wanna flash the latest software so had 2 questions:
1. Should I flash the most recent software update or considering I've never actually updated my phone, should I flash all the previous updates from August first before I flash the latest one.
2. I wanted to know if anyone has experience flashing SM-G998U1 firmware on a SM-G998U phone. I heard you can flash "U1" or carrier unlocked firmware on a "U" or carrier locked phone. Just that you'd lose all your data. I have an SM-G998U locked to Verizon and since I'm not in the US Verizon says they can't unlock it for me. So my only option is to flash new firmware updates. But I can't for the life of me find any Verizon SM-G998U firmware from after August 2021 (that's my latest security patch) online. So wanted to hear from anyone with experience that's flashed "U1" firmware on a "U" phone.

Flashing FW is no solution to unlock phones.

OnnoJ said:
Flashing FW is no solution to unlock phones.
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Click to collapse
I'm not trying to unlock my phone. It's usable cause it doesn't reject simcards. Just denies me OTA updates. All I want is new software.
Is there another option apart from flashing new firmware if I want to update it? I'd love to unlock the phone but all the websites keep talking about generating codes. My phone doesn't request a code. And I can still use it. If there isn't another option for unlocking, can you assist with the questions I've asked?

Fine to flash new firmware to get the latest.
1. If you flash complete FW using Odin, you can flash the latest, no need to flash intermediate updates.
2. Did you search the forum yourself? See following thread for FW versions of the US-devices: https://forum.xda-developers.com/t/...s-and-flashing-discussion-here.4220111/unread

OnnoJ said:
Fine to flash new firmware to get the latest.
1. If you flash complete FW using Odin, you can flash the latest, no need to flash intermediate updates.
2. Did you search the forum yourself? See following thread for FW versions of the US-devices: https://forum.xda-developers.com/t/...s-and-flashing-discussion-here.4220111/unread
Click to expand...
Click to collapse
Thanks so much for all the help Yeah I've seen that thread before. But only firmware available until November 2021. Nothing after. So think I'll try the U1 to U option for now.

Related

July 1st Security Update for Unlocked Note 8 using Sprint

Can anyone confirm if the CRF6 security update breaks anything? More specifically, are the APN settings still accessible? I want to install it, but I am happy with the current state of things. Thanks
I've just updated July 1 security firmware on my unlocked 950U1 and been using with T-Mobile, everything is good including APN settings or adding.
Thanks. I just installed and all is good.
I have the 950u1 on crf6 and I want to flash tmobile firmware on it but it keeps failing any advice
So I am assuming you cant flash a U firmware on a u1 device? Am I correct on this assumption? I figured since you can flash u1 on a u device you should be able to flash a u firmware on u1
I would like to update my note8
Can some assist with the update please. I have CRC4 and want to update to CRF6 using ODIN. Can someone guide me please?

How to get firmware to flash a Samsung SM-G973U1 (unlocked) to T-Mobile

I've seen a couple of threads about this here, but I'm confused about where I can get the firmware to flash an unlocked S10 (SM-G973U1) to T-Mobile firmware, and they've not really told me where to download the firmware that I need. One thread pointed at S10+ firmware, not useful to me, and the other didn't give any URL for downloading firmware.
Can anyone help me find the right firmware? I've used Odin before, and am fine with that. I also know that I have to have the right firmware for this to work *smile*.
Also, the firmware to flash back from T-Mobile to unlocked would be very useful, since I may want to change back to unlocked at some point. The reason that I want to flash T-Mobile firmware is since I'm still on the May 1 "monthly" Android security update on my unlocked S10. That doesn't make me happy, more than a quarter behind by this point...very disappointed.
Thanks!
There's a firmware thread here:
https://forum.xda-developers.com/galaxy-s10/how-to/s10e-g973u-g973u1-firmware-links-t3905852
RogerSC said:
I've seen a couple of threads about this here, but I'm confused about where I can get the firmware to flash an unlocked S10 (SM-G973U1) to T-Mobile firmware, and they've not really told me where to download the firmware that I need. One thread pointed at S10+ firmware, not useful to me, and the other didn't give any URL for downloading firmware.
Can anyone help me find the right firmware? I've used Odin before, and am fine with that. I also know that I have to have the right firmware for this to work *smile*.
Also, the firmware to flash back from T-Mobile to unlocked would be very useful, since I may want to change back to unlocked at some point. The reason that I want to flash T-Mobile firmware is since I'm still on the May 1 "monthly" Android security update on my unlocked S10. That doesn't make me happy, more than a quarter behind by this point...very disappointed.
Thanks!
Click to expand...
Click to collapse
If the phone is SIM unlocked, the Firmware you want is the USC or XAA firmware... That way it will switch carriers apps and bloatware when you change sim cards...
Search for samfirm on google....
Have Fun!!

Trouble updating Galaxy Note 9

Hi i am new here and need help with updating my Samsung note 9 i still have a baseband N960USQS1ARI5 but will like to update to the latest firmware. i'm using an unlocked AT&T phone. can anyone guide me? I'm not sure if updating the firmware will lock the phone and the process to update, do I just update the firmware in stages as the updates were released till i get to the latest update or can i update straight up to the latest? I am thinking of using Odin, is that a safe way to do this? any help will be appreciated. Lastly, can I change from the AT&T firmware to lets say a none carrier based firmware so as to stop seeing the AT&T logo on boot up? Maybe switch to a firmware that supports global or international? Does anyone have links to an unlocked firmware update i can use, as well? Please help!
I must state that the phone never updates automatically as it always says the software is up to date.
mtrackerbeyond said:
Hi i am new here and need help with updating my Samsung note 9 i still have a baseband N960USQS1ARI5 but will like to update to the latest firmware. i'm using an unlocked AT&T phone. can anyone guide me? I'm not sure if updating the firmware will lock the phone and the process to update, do I just update the firmware in stages as the updates were released till i get to the latest update or can i update straight up to the latest? I am thinking of using Odin, is that a safe way to do this? any help will be appreciated. Lastly, can I change from the AT&T firmware to lets say a none carrier based firmware so as to stop seeing the AT&T logo on boot up? Maybe switch to a firmware that supports global or international? Does anyone have links to an unlocked firmware update i can use, as well? Please help!
I must state that the phone never updates automatically as it always says the software is up to date.
Click to expand...
Click to collapse
to your last point, at&t phones are notoriously bad at updating
factory unlocked phones will remain forever unlocked and phones unlocked that are bespoke to a specific carrier will also remain unlocked even with Odin flashes providing that the method employed to unlock it was legitimate. Some unlock methods employ root and only trick the phone into thinking its unlocked. Well, once you remove root, and thusly the trick, the unlock is gone. I have ran across rare examples where the person swore up and down that they unlocked their phone with a legit unlock code and that it relocked to a carrier once the sim was inserted and initial programming completed, but i dunno. Sounds weird to me, but every person who said this also said that the phone locked to a carrier other than the one it came from originally. Take that for what its worth, but i still mostly stand by the first couple lines of this section of my diatribe
If you want the at&t crap gone, get the N960U1 firmware and flash it in Odin. You will need the modified version of Odin to flash it so it can ignore the 255 errors the phone throws up from flashing firmware for a carrier (or, in this case, no carrier) on to a phone that it wasnt originally designated (not designed) for
go to sammobile.com/firmwares, get the info for the firmware you want to d/l, get the Frija tool or Samfirm and download the firmware thru one of those as theyre literally 5x faster and flash it
mtrackerbeyond said:
Hi i am new here and need help with updating my Samsung note 9 i still have a baseband N960USQS1ARI5 but will like to update to the latest firmware. i'm using an unlocked AT&T phone. can anyone guide me? I'm not sure if updating the firmware will lock the phone and the process to update, do I just update the firmware in stages as the updates were released till i get to the latest update or can i update straight up to the latest? I am thinking of using Odin, is that a safe way to do this? any help will be appreciated. Lastly, can I change from the AT&T firmware to lets say a none carrier based firmware so as to stop seeing the AT&T logo on boot up? Maybe switch to a firmware that supports global or international? Does anyone have links to an unlocked firmware update i can use, as well? Please help!
I must state that the phone never updates automatically as it always says the software is up to date.
Click to expand...
Click to collapse
Hi, my phone is a Note 9 ATT factory unlocked.
Below is the link for my post
I've updated my phone using the link , and still unlocked and working Ok.
I hope it can help you .
https://www.google.com/amp/s/forum....note-9-att-rom-update-sept-2019-t3979303/amp/

Need help in flashing firmware to Android 10

[SOLVED] Hey, so I purchased the Note 9 (SM-N960U, baseband : N960USQS1CSF1) about six months back, and for some reason, I haven't received any OTA updates, I'm still stuck on Android 9 :'). I've decided to flash the firmware, but it's gonna be my first time,
And I do have some questions..
1. Is it fine if I flash the latest Android 10 UI2.5?
2. I have the AT&T variant but I live in The UAE, I don't have any European sim either, so is it fine if I flash the Verizon version ( or is there any other recommended Carrier) cuz I can't find any firmware of AT&T.
3. Is it necessary to root the phone in order to get it flashed with Odin?
4. I don't see the OEM UNLOCK option, but that does that matter right? ( I do have the snapdragon version)
6. Are there chances of bootloop or bricking if I follow all the instructions and download the correct firmware?
Lastly, if you guys could offer some tips and suggestions, I'd appreciate
Thank you!
[EDIT] Heres how I did it
1. Installed the latest Samsung drivers for mobile on my pc
2. Factory reset my phone and cleared all the cache
2. Got the U1 firmware for my sm-n960u unlocked phone (as advised by a fellow redittor) from sammobile.
3. Used the patched Odin 3.13.1.3b to do a *clean install* of the new firmware. And done!
Problems I faced: Odin failed to recognize my device, so I had to use another USB port and reboot my pc
Joyfulleaf27 said:
Hey, so I purchased the Note 9 (SM-N960U, baseband : N960USQS1CSF1) about six months back, and for some reason, I haven't received any OTA updates, I'm still stuck on Android 9 :'). I've decided to flash the firmware, but it's gonna be my first time,
And I do have some questions..
1. Is it fine if I flash the latest Android 10 UI2.5?
2. I have the AT&T variant but I live in The UAE, I don't have any European sim either, so is it fine if I flash the Verizon version ( or is there any other recommended Carrier) cuz I can't find any firmware of AT&T.
3. Is it necessary to root the phone in order to get it flashed with Odin?
4. I don't see the OEM UNLOCK option, but that does that matter right? ( I do have the snapdragon version)
6. Are there chances of bootloop or bricking if I follow all the instructions and download the correct firmware? Cuz it's my primary phone and I don't wanna mess it up.
Lastly, if you guys could offer some tips and suggestions, I'd appreciate
Thank you!
Note: I did watch some YT tutorials and have read some stuff, so I do have some basic knowledge on flashing the firmware
Click to expand...
Click to collapse
1. If there is update available
2. I don't know about U phone
3. No root needed. This is official fimware
4. No need
6. Provided the firmware you're going to flash is correct, shouldn't be a problem. Upgrade shouldn't cause stuck/bootloop, just don't downgrade.
Be sure to find the correct firmware.
Rosli59564 said:
1. If there is update available
2. I don't know about U phone
3. No root needed. This is official fimware
4. No need
6. Provided the firmware you're going to flash is correct, shouldn't be a problem. Upgrade shouldn't cause stuck/bootloop, just don't downgrade.
Be sure to find the correct firmware.
Click to expand...
Click to collapse
Thank you mate! Now I just need some clarification on the carrier issue.

Flashing firmware from a different region

Hi all, I'm new to modding in general so there's many things I don't quite understand, hoping somebody can help.
I bought an S10 from a site which was supposed to just send me a refurbed (italian) S10, instead they sent me the US version, (G973U) and I believe it is carrier locked since it's stuck with Android 9 and doesn't find any update.
I have tried searching to no avail what I should flash to simply unbrand it, and allow it to receive OTA updates without tripping Knox.
The build version is the following: PPR1.180610.011.G973USQU2ASGC and the CRC is XAA/XAA/ATT
Thanks in advance.
You shall call them.
Who and what for? I'm past the point of dealing with those sellers, I just want to flash the phone.
CSC (not CRC).
XAA is a multi-region USA ROM, so I don't think it will change over properly for you in Italy. There are threads here for how you reflash a different ROM. The one I used for my S10+ was this one: https://forum.xda-developers.com/t/...e-links-and-flashing-discussion-here.3905897/ but I am sure there is one like that for your S10 non-plus... find it, follow the instructions, and you should be all set.
Thanks! I'm a newbie, what does it mean it wouldn't change properly? No OTAs? Tripping KNOX?
I have found this which seems to be the equivalent of the link you posted.
So, I should flash the U1 version right? However I see only a file "SAU - 1 - ....", and my build number doesn't end in that, furthermore I don't know which bootloader version I'm at.
lrzfc said:
Who and what for? I'm past the point of dealing with those sellers, I just want to flash the phone.
Click to expand...
Click to collapse
Oh ok. I couldn't understand first.
For that, You'll flash in EDL mode. But the problem is if your device is powered by a snapdragon chip, it'll not working seamlessly.
FardinIslam said:
Oh ok. I couldn't understand first.
For that, You'll flash in EDL mode. But the problem is if your device is powered by a snapdragon chip, it'll not working seamlessly.
Click to expand...
Click to collapse
No problem. I'm aware of the mode I have to enter to flash, as above I'm trying to figure out which stock rom I should flash to avoid tripping knox, and to receive OTAs. What won't work seamlessly?
Well, mods can close the thread, found the way to do it. Leaving it in case somebody ever needs it.
First, found & checked the bootloader version (5th number from the right in the build version) since you can only flash older bootloader versions apparently.
Then downloaded through Frija the rom for the unlocked phone variant (SM-G973U1) and the unbranded CSC (XAA)
Then using odin 3.13.3b flashed the rom
Watch this video
lrzfc said:
Well, mods can close the thread, found the way to do it. Leaving it in case somebody ever needs it.
First, found & checked the bootloader version (5th number from the right in the build version) since you can only flash older bootloader versions apparently.
Then downloaded through Frija the rom for the unlocked phone variant (SM-G973U1) and the unbranded CSC (XAA)
Then using odin 3.13.3b flashed the rom
Click to expand...
Click to collapse
Hello, I'm in more or less same situation. When you flashed, which files did you use? All of them or just the AP_*** file?
Never mind. Flashed it anyway, now I don't see the AT&T startup screen anymore which is promising. Firmware version is now Android 11 (SM-G973U1 and not SM-G973U) on XAA CSC. Will see if I get any firmware updates later.

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