I currently have an Unlocked Z Fold3 purchased directly through the Samsung US site.
Model: SM-F926U1
Baseband version: F926U1UEU1CVC5
I would like to downgrade to Android 11 to see if it resolves the no service issues with T Mobile the update caused. Does anyone know if this is possible?
Yes. Download android 11 package and use Odin
domineus said:
Yes. Download android 11 package and use Odin
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I thought I needed an unlocked bootloader for this? If its that easy is there a way to prevent getting the update to 12?
No, Odin flashes the Android firmware.
Unlocking the bootloader gives the ability to install TWRP, custom ROMs, and delve into the system folder easily. Odin flashes firmware. However, once you update a bootloader, you cannot roll that back...if I remember correctly.
was the bootloader updated in the Android 12 update? if it was that means flashing Android 12 really wouldn't change anything or may not even be possible?
Related
Hi, I've got this one Note 4 that's had loads of trouble presumably since the last security update.
Baseband Version: N910AUCS2EQD1
Android: 6.0.1
Have seen the instructions and all as to how to go about downgrading BUT one site I came across with the original stock firmware downloads outright state how:
""DO not ever try to downgrade from any newest Android 6.0.1 Marshmallow updates back to an older 6.0.1 build version""
'and so I'm lost. Should trying to then reinstall the same Baseband version atop what's already there a good first alternative? ...that is, just in case it was never upgraded properly in the first place? Or is that not even possible?
Is trying to downgrade at all a futile pursuit?
Would truly appreciate any suggestions, help, direction...heck, anything! Thanks in advance.
I downgraded from 6.0.1 epk5 to 5.1.1 with no problem.
Not sure about qd1.
As long as you have the odin firmware, I see no problem.
Can i downgrade note 4 n910a from marshmallow to lollilop,please help me i am in great trouble because marsmallow update is very bad with a lot of reboot issue ,battery drain.
Once you are on QD1 you will not be able to go back to anything lower than that firmware. The bootloader is now at the latest version and has blown one of those imaginary "e-fuses" so that you can not go back in time to any other vulnerable OS. I just tried today to go from EQD1 to EPK5 and It would not flash and would fail every time whilst using the latest Odin. So good luck on finding anything on getting you back to another firmware version but at this time I do not believe there is anything that will move you back to the firmware you want. If you do happen to find something or make your own exploit do tell @sanaullahkhan371 If you are on QD1 you are not going to be able to downgrade if you are on PK5 you can try the Odin downgrade method that will5 presumably used but if you are not in this firmware use case you are SOL.
will5 said:
I downgraded from 6.0.1 epk5 to 5.1.1 with no problem.
Not sure about qd1.
As long as you have the odin firmware, I see no problem.
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Hi,
Can you please let me know how did you downgrade? Is it straight away flash to 5.1.1 or did you follow any steps?
I am also planning to downgrade. Anyways, I stopped using Note 4 after update to 6.0.1 as it was switching off every now and then due to update. Might as well make this phone usable to take photos and as a video player for my kid
Thanks
roxster said:
Hi,
Can you please let me know how did you downgrade? Is it straight away flash to 5.1.1 or did you follow any steps?
I am also planning to downgrade. Anyways, I stopped using Note 4 after update to 6.0.1 as it was switching off every now and then due to update. Might as well make this phone usable to take photos and as a video player for my kid
Thanks
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Click to collapse
I just odin to this firmware N910AUCU2DOI2-5.1.1 It s available somewhere on this forum.
Read how to odin if you never used it. In this case you need to unzip the file and load AP, BL, CP and CSC files on odin and flash.
Was running 6.0.1 epk5 previously.
will5 said:
I just odin to this firmware N910AUCU2DOI2-5.1.1 It s available somewhere on this forum.
Read how to odin if you never used it. In this case you need to unzip the file and load AP, BL, CP and CSC files on odin and flash.
Was running 6.0.1 epk5 previously.
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Click to collapse
Thanks a lot buddy! :good:
My note 4 was also running on 6.0.1 EPK5. Found the 5.1.1 firmware and followed your instructions to downgrade. My phone came back to life and is usable now.:victory:
No more switching off abruptly! I wont update anymore since all the apps which I use are working fine with current version of Android.
braindead444 said:
Once you are on QD1 you will not be able to go back to anything lower than that firmware. The bootloader is now at the latest version and has blown one of those imaginary "e-fuses" so that you can not go back in time to any other vulnerable OS. I just tried today to go from EQD1 to EPK5 and It would not flash and would fail every time whilst using the latest Odin.
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Click to collapse
Were you ever able to flash back to an older version from QD1? Others have said that the bootloader was not incremented in QD1.
spocko said:
Were you ever able to flash back to an older version from QD1? Others have said that the bootloader was not incremented in QD1.
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Were you able to downgrade from EQD1 to 5.1.1? I am on EQH1 and I am not able to downgrade
somani09 said:
Were you able to downgrade from EQD1 to 5.1.1? I am on EQH1 and I am not able to downgrade
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I'm also on EQH1. I have never tried to downgrade. I was just curious if it was possible, in case a root method was discovered that only worked on older versions. But I've just learned to live without root. EQH1 works fine for me.
I had the infamous freeze/reboot/shutdown issue with 6.0.1 and I wasn't sure if that was the issue but I downgraded to 5.1 and have fewer issues now. The phone runs just fine, except it does not reboot. You have to do a soft reset every time. But with the Wakelock app, at least it runs.
roxster said:
Thanks a lot buddy! :good:
My note 4 was also running on 6.0.1 EPK5. Found the 5.1.1 firmware and followed your instructions to downgrade. My phone came back to life and is usable now.:victory:
No more switching off abruptly! I wont update anymore since all the apps which I use are working fine with current version of Android.
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Click to collapse
Hi can i ask if u still have that firmware file
Hi guys, I recently purchased a refurbished S9+ without knowing the model and it turned out to be a SM-G965U. After a failed software update ("Your current software isn't supported. Visit a service centre"), I've been trying to find a way to update the phone to 'official' Android 10. Does anyone know if this is possible or is the phone locked to Android 9?
'OEM Unlock' is missing from developer settings which (I think) means it can't be rooted with any common method. But is it possible to flash the phone with an official, working version of Android 10?
I'm willing to use any method required (within reason) to update the phone to a working version of Android 10. I'm aware of the "Extreme Syndicate" root method but the bugs / missing features rule it out for me. I intend to get a refund for the phone if it can't be updated to Android 10 so I'd really appreciate any answers to my questions.
Thanks!
You can manually update your phone by using Odin, and download the latest firmware available by using Frija
B1nz said:
You can manually update your phone by using Odin, and download the latest firmware available by using Frija
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That's good news. Just to confirm, I can manually update with Odin WITHOUT unlocking OEM in the develop settings? Thanks for replying.
Just confirming that I successfully updated to Android 10 using Odin. The CSC I used is for an American carrier and the phone tries to register on its network but that's easily disabled. Had to be done after every reboot but it's a small price to pay for a working phone....
Hello Guys, I'm currently stuck on G965USQU3ZRLG
I made use of firmware.science to update my S9 plus to this point, but it seems there's no further firmware update for G965USQU3ZRLG to the next update file. Kindly assist, thank you.
can i flash android 10 stock rom over updated android 11 on my factory unlocked S20 (U.S. variant)? i've never used ODIN before so i'm not sure if that's possible.
why i need to do that? because i'm gonna be sending my S20 to Samsung for warranty work and they automatically update to the latest updates and i don't want android 11 on my phone.
konoplya said:
can i flash android 10 stock rom over updated android 11 on my factory unlocked S20 (U.S. variant)? i've never used ODIN before so i'm not sure if that's possible.
why i need to do that? because i'm gonna be sending my S20 to Samsung for warranty work and they automatically update to the latest updates and i don't want android 11 on my phone.
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Yes if you have same bootloader version but the bootloader version should have probably updated. In case of bootloader version updated and you want to downgrade to a lower bootloader version, you will end up with a brick. Long story short, send me your full changelog and I will see if you can downgrade.
jjgvv said:
Yes if you have same bootloader version but the bootloader version should have probably updated. In case of bootloader version updated and you want to downgrade to a lower bootloader version, you will end up with a brick. Long story short, send me your full changelog and I will see if you can downgrade.
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thanks for the reply. basically i have to send my phone to samsung first, but i would like to make a backup of my ROM prior to sending it out. i currently have Android 10. i'm pretty confident samsung will update my phone as they always put latest updates on it when doing warranty work. i'm going to try to tell them not to, but i'm not relying on them actually complying with my request. so this is more of a "just in case" scenario, but i want to know if this is definitely doable before i send the phone to them.
Deleted member 9635294 said:
Yes if you have same bootloader version but the bootloader version should have probably updated. In case of bootloader version updated and you want to downgrade to a lower bootloader version, you will end up with a brick. Long story short, send me your full changelog and I will see if you can downgrade.
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can you help me to downgrade from one ui 3.1 to 2.5 in galaxy s10.
my current baseband version is g973fxxsfue6
kernal 4.14.113
Hello, I'm quite new. I downgraded from Pie to Oreo with Miflash a couple of years ago cause I had wifi problems. I got V9.6.11.0.ODLMIFF now. I want lock bootloader and keep updating via OTA. Which version should I install? stock version? Or some Pie version? I will lose all data of the phone right ? And where I can get the ROM? The old links I had not working now. Thanks
If you want security updates you have to use Android 10 but it's got some "known issues" you may not like. 11.0.16.0
https://bigota.d.miui.com/V11.0.16.0.QDLMIXM/daisy_global_images_V11.0.16.0.QDLMIXM_20201225.0000.00_10.0_79e5becb5f.tgz
If you just want to go back to Pie, you may as well get the last version. 10.0.20.0
There's a list of stock images here:
[FASTBOOT] [daisy] Xiaomi Mi A2 Lite FASTBOOT Images
Disclaimer I am not responsible for bricked devices or anything like that. YOU are choosing to make these modifications, and if you point your finger at me for messing up your device, I will laugh at you. Here are the current fastboot links for...
forum.xda-developers.com
That page also has install instructions if you aren't familiar.
Thanks @a1291762 Yes I prefer something stable so I'll install 10.0.20.0. I enter into fastboot mode and flash with miflash(clean all) right?
And I'm wondering if It is possible to lock the bootloader to update via OTA in the future? (clean and lock) It is possible with that version or you need to install the first Android 8.1.0 [V9.6.4.0.ODLMIFF] ?
Nidea180 said:
prefer something stable so I'll install 10.0.20.0. I enter into fastboot mode and flash with miflash(clean all) right?
And I'm wondering if It is possible to lock the bootloader to update via OTA in the future? (clean and lock) It is possible with that version or you need to install the first Android 8.1.0 [V9.6.4.0.ODLMIFF] ?
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Click to collapse
I haven't used miflash only the fastboot scripts. But I believe miflash has a lock bootloader option. As long as you are also flashing all of the partitions, it's safe to use. Note that you do not need a locked bootloader to OTA.
You can use that version (10.0.20.0). There is no need to use an older one.
If you are downgrading you need to flash a newer modem because it fails if you downgrade the modem firmware. That makes it trickier to flash and lock. Replacing the file works with the fastboot scripts.
After install, you will need to immediately enable developer mode to disable automatic system updates. Otherwise your phone will install Android 10 automatically.
Thanks it has been helpful. So can I update via OTA after install a fastboot ROM, no matter if bootloader is lock or unlock? Is that possible when you downgrade?
Nidea180 said:
Thanks it has been helpful. So can I update via OTA after install a fastboot ROM, no matter if bootloader is lock or unlock? Is that possible when you downgrade?
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Yes. OTA only requires the A/B partitions to be unmodified. You can have an unlocked bootloader.
If you root with Magisk or install TWRP then your partitions will be modified. If you don't do that, you can OTA without issue.
Nidea180 said:
Thanks @a1291762I'll install 10.0.20.0
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FWIW: I am lending my phone to somebody else, and didn't want them to have to put up with Android 10's quirks (particularly the need to reboot regularly) so I put the phone into fastboot mode and used flash_all_lock_crc.sh from the Android 9 (10.0.20.0) fastboot image. https://bigota.d.miui.com/V10.0.20....0.PDLMIXM_20200327.0000.00_9.0_2baf524aaf.tgz
Since I didn't have an Android 11 ROM handy, I left the 10.0.20.0 modem image in there, but it seems to be fine (for my single SIM in slot 2). I guess the modem thing (needing to flash a newer image) only applies to Android 8?
Before I let the phone on the network, I enabled developer mode and turned off automatic updates. Disabling the notification category Google Play Services -> System Update should prevent any prompts to install system updates.
Hey, guys! This is my first time posting, so I apologize if my post is missing some key details or isn't of quality in some other way.
I am currently looking into installing LineageOS onto my Samsung Galaxy A7 (SM-A720S); on the LineageOS installation documentation, it said to make sure that my device was running Android Oreo (Android 8.0). Since my device had Android Pie (Android 9.0) installed, I downloaded the Android 8.0 stock ROM for my device and region from SamMobile, and I also downloaded Odin v3.14.1 (un-patched as I am using a ROM for the same region) from the XDA forums.
Furthermore, I turned on developer settings on my phone and enabled OEM unlocking and USB debugging. Attempting to flash Android 8.0 onto my device resulted in the following error message:
SW Rev. Check Fail (Bootloader) Device: 5 Binary: 3
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From poking around in the forums, I learnt that this means there is a mismatch between the bootloader version and the binary I am trying to flash. Is there any way to either downgrade the bootloader in order to be able to flash Android 8.0 or is there some way to trick the device/odin into thinking that the Android 8.0 has a binary of 5?
I really want to try LineageOS. so I would appreciate any advice on how to work around this issue.
That was a slight oversight on my end, because there aren't many A720S users. Your pie bootloader is fine, you can flash lineage.