Or can we go from march VZW to feb XAA and then update to march XAA through the device's settings menu?
I figured it out. TLDR: yes you can.
Go to settings > about phone > software information, and look at your Basband version. It will look something like this:
G981U1UEU1ATBN
Notice the 5th value from the right that I've shown in red? You can flash firmwares with bootloader versions that are the same as or higher than that.
In the case of the OP, the march firmware has a bootloader version of 1, and so does the february firmware, so you can flash the february firmware over the march firmware to go from march VZW to february XAA. Then you can go from february XAA to the latest update via settings > software update.
Some firmwares can be found here: https://forum.xda-developers.com/ga...g986u-g986u1-firmware-links-flashing-t4054629
Related
If Security Patch Level Update October 1, 2019 does not make you satisfy than previous SPL update. This guide will help you if you want to return to previous SPL Update August 1, 2019.
First, you must download firmware with August 1, 2019 SPL Update, There are may be some firmware with August 1, 2019 SPL Update, I suggest you to download the latest firmware with August 1, 2019 SPL Update. For example: Below is firmware for Galaxy A50 SM-A505F, focus on SPL Update :
Latest SPL Update October 1, 2019:
Model SM-A505F
Model name Galaxy A50
Country Indonesia (XID)
Version Android 9
Changelist 16641116
Build date Fri, 20 Sep 2019 00:53:28 +0000
Security Patch Level 2019-10-01
Product code XID
PDA A505FDDS2ASI3
CSC A505FOLE2ASH1
Latest SPL Update August 1, 2019 ( DOWNLOAD THIS FIRMWARE and FLASH IT )
Model SM-A505F
Model name Galaxy A50
Country Indonesia (XID)
Version Android 9
Changelist 16641116
Build date Wed, 14 Aug 2019 09:13:43 +0000
Security Patch Level 2019-08-01
Product code XID
PDA A505FDDU2ASH3
CSC A505FOLE2ASH1
Now flashing this firmware, If you never flashing ROM before you can follow this Instructions:
1. Extract (unzip) the firmware file.
2. Download Odin http://odindownload.com/SamsungOdin/
3. Extract Odin and Open it
4. Add the firmware files AP, BL, CP and CSC.
5. In Option make sure to ticked F.Reset Time and Auto-Reboot only
6. Enter Download Mode / Bootloader mode ( Turn Power off the phone, Press and hold Volume Up key and Power key, when Samsung logo appears release Power key only. Release Volume key when Android Recovery appears, select Reboot to Bootloader, press power key to confirm ) Connect the phone to PC using USB Cable
7. Wait until you get a blue sign in Odin then Click the start button, sit back and wait few minutes
8. Setup the Phone. Done!
Warning! Make sure to backup all your important data because It will delete all your data and restore it to default factory settings.
It looks like October 1, 2019 SPL Update make you not happy, me2
Watch this video for visual instructions
FYI: October 1, 2019 Security Patch Level Update (SPLU). The fast charging feature may be not work, I have compare its. When installed October 1, 2019 SPLU I can not see fast charging notification when plugin charger but I get notifications on August 1, 2019 SPLU.
Hello brother. May I ask whats the difference between A505FDDU and A505FDDS?
Quick question but, why would you want this?
I bought a Verizon S9 through Swappa from "It's all wireless Inc." and expected to update it to Android 10. Well it came in and has CSC G960USQU7CSJ2 from CCT (Comcast) and won't go past Android 9 security patch level October 1, 2019. I'm not very happy and they aren't responding to emails. I've never flashed firmware on a phone but have been reading everything I can find. My question is can I just change the CSC code to VZW (see link below) and it will then pull the firmware/security patches OTA or do I have to flash the full firmware? Thanks in advance for the advice guys..
Droid views
https://www.**********.com/how-to-change-csc-in-samsung-galaxy-phones/
Sliverme said:
I bought a Verizon S9 through Swappa from "It's all wireless Inc." and expected to update it to Android 10. Well it came in and has CSC G960USQU7CSJ2 from CCT (Comcast) and won't go past Android 9 security patch level October 1, 2019. I'm not very happy and they aren't responding to emails. I've never flashed firmware on a phone but have been reading everything I can find. My question is can I just change the CSC code to VZW (see link below) and it will then pull the firmware/security patches OTA or do I have to flash the full firmware? Thanks in advance for the advice guys..
Droid views
Click to expand...
Click to collapse
first things first, please dont post outside links like that one on the bottom of your post.
now thats out of the way, all you need to do is flash the VZW firmware with Odin. I bought 3 Cricket S9's and flashed all of them with the U1 firmware and have also flashed the VZW firmware on them just for s--ts and giggles. Technically speaking, the firmware likely already has all the VZW stuff baked in, it just needs to be told which CSC to use, but since youre behind on FW anyways, just flash the newest G960U FW for VZW, reboot, profit. When flashing, be sure to use the HOME_CSC to not factory reset it and the CSC if you want a clean slate.
I just acquired a new unlocked Galaxy Note 10+ SM-N975U1 a week ago from the Microsoft Store. I got it working on the T-Mobile network without issues except for firmware upgrades. The device automatically downloaded & installed about 5 upgrades but stopped when showing:
Software update information:
Current version: N975U1UEU3CTC9 / N975U1OYM3CTC9 / N975U1UEU3CTC9
Security patch level: April 1, 2020
From what I can tell, this seems to mean that I am running Android 10, but not OneUI 2.5.
I'd like to flash a later security patch level and get the OneUI 2.5 update. Is SamMobile.com the best place to get the latest firmware? If so, should I choose the latest "USA (T-Mobile (TMB)" option even though this is not a T-Mobile locked device? Or, is there a better option to select?
Thanks in advance.
UPDATE AS OF FEBRUARY 22, 2021:
There are serious communication problems between Sprint/T-Mobile and Samsung Technicians regarding software build and Baseband versions or just a complete lack of knowledge. As a consumer, I have received many conflicting responses from the Technicians on both sides that's incorrect! Sam Mobile cleared up my questions regarding the software and Baseband versions released by Sprint.
I took my phone to Samsung's preferred UBreakiFixIt store and after 5 hours, I was told that they couldn't flash my phone with the Samsung, T-mobile or Sprint software. I contacted Sprint and after 1 hour, the technician said that my phone has Sprints latest update and to look for future updates. However, Sam Mobile lists Sprints latest January 1, 2021 update as: G988......CUA4 posted on February 5, 2021.
At this point, Sprint customers with a Galaxy S20 Ultra running the G988....CTL1 security update from December 1, 2020 must wait for Sprint to release the January 1, 2021 security update!
Please respond if you've already received the January 1, 2021 security update from Sprint for your Galaxy S20 Ultra and disregard my post below. Thanks!
In January 2021, I received the December 1, 2020 security update from Sprint/T-mobile. I noticed the different software update version numbers listed in the What's New section after installing the update, but didn't think much about it until I couldn't download the January 1, 2021.
I checked the T-mobile website and learned that the Galaxy S20 Ultra had to have Baseband version (Located in the About Phone section under Software) G988U........CTL1 in order to receive the next security update. Unfortunately, Sprint/T-Mobile installed Baseband version G988U.....CUA3 on my phone. I checked the link to Samsung to review the software updates that were installed on my phone and they have the latest updated version as: G988U....CUA4 which is not installed on my phone!
I contacted both Sprint/T-Mobile and Samsung and they decided to point fingers at each other because the CUA3/CUA4 software updates don't exist, they aren't valid according to their Techs. But Sprint/T-Mobile installed the security update OTA in January. See attachments.
I understand that I need to have my phone reflashed with the original One UI 3.0 OS 11 software in order to receive future software updates.
Hi,
Could anyone help me to answer the question IF it is possible to flash stock ROM G990B on G990B2 model, and if so how? I need to get band selection working and with the Samsung toolkit and exploit it is not working as I would like it to be, so my thought was to try and flash it with G990B stock rom with security patch earlier than July 2022. Unfortunately G990B2 has earliest stock ROM I could find with security patch from September 2022, means after Samsung screwed up band selection...
One of my friends has converted his S21fe from G990U to G990U1, but both the firmware's binary versions were same. But for your case, you not only want to convert but also want to downgrade to an earlier firmware version. As mentioned on the Samsung OTA update page (See attachment), I am not sure that's possible anymore.
G990B2 I have on September 2022 ROM. I was thinking of going to G990B September 2022 version as well and than try to downgrade to say June 2022. I know on G990B I am able to go easily from Decemeber 2022 down to April 2022, as I did on few devices already. But this G990B2 version threw another stick under my feet...
Shuhan44 said:
One of my friends has converted his S21fe from G990U to G990U1, but both the firmware's binary versions were same. But for your case, you not only want to convert but also want to downgrade to an earlier firmware version. As mentioned on the Samsung OTA update page (See attachment), I am not sure that's possible anymore.
Click to expand...
Click to collapse
Could you ask your friend how did he do the G990U to U1 conversion?
Guys I can't seem to login to sammobile. I need the official SMG990B Android 13 Ui 5 european version... pls help...