Hello, I have a google Pixel 2 from Verizon and i was able to update it to Android P. I want to downgrade it to Android O but i am unable to do so. Can you please help. My bootloader is locked. Please how can i downgrade it to Android O?
sachin20us said:
Hello, I have a google Pixel 2 from Verizon and i was able to update it to Android P. I want to downgrade it to Android O but i am unable to do so. Can you please help. My bootloader is locked. Please how can i downgrade it to Android O?
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Pretty sure you are supposed to be able to leave the beta and then it sends a downgrade OTA. You could try sideloading 8.1 through adb, but I'm not sure if that would cause any issues. I've only used fastboot for this on my nexus/pixel devices so maybe someone else can help you more.
P is March 18. You can't downgrade earlier than that, but the factory image is March 5th, so you'll have to wait for the April 5th factory image to convert back to O.
Related
I have updated my Nexus 5 to Android 5.0 manually via "adb sideload" and noticed, that the bootloader was not upgraded.
Should i upgrade my bootloader manually?
Thanks for your answers in advance.
Greetings,
mst0
Does nobody know an answer?
It's the same bootloader as the last preview so if you were using that it won't change
I've never installed the preview.
I updated from 4.4.4 to 5.0 and noticed, that my bootloader didnt't upgrade(but the radio did).
(To the top)
If your stock then when a update comes out it won't install. Other then that it doesn't affect anything.
So if i don't upgrade manually i won't be able to update Android.
Did i understand this correctly?
Are there any downsides, if I upgrade the bootloader?
mst0 said:
So if i don't upgrade manually i won't be able to update Android.
Did i understand this correctly?
Are there any downsides, if I upgrade the bootloader?
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If your running perfectly fine now then don't worry about it. If in the future you have issues upgrading or device won't boot properly then update it.
If you recieve a OTA update it'll check the version number of your bootloader and if it doesn't match what it's supposed to be then the OTA will refuse to install. I ran my nexus 7 1st edition for 8 months with an older version bootloader with no neg results. Updated it when flashing the Factory image, not that it needed it. Just for the sake of argument go ahead and update the bootloader using fastboot. Google updated the bootloader for a reason right?
.I just want to share my experience with the firmwares (G970F).
First im not against with any updates for the phone but I accidentally press the update for the latest which is the ASJA (Philippines Carrier) and i realize it comes with a new bootloader which is S3 and the stock is U1.
Is there anything I can downgrade the bootloader so I can downgrade the complete firmware also? I want the stock firmware the first one (March 2019) because of my own preferences and I just want to stay with it. Any ways to solve this even on the near future? Glad to hear some ideas. Thanks
I have a similar question. After the recent Feb 2020 security patch update, the bootloader has been changed from 3 to 4. I so wish i had not updated. Is there anyway to go back to Android 9 which has BL 3 via Odin? Help would be appreciated, thanks.
im not sure its possible, moving from u4 to u3. the only possible solution o go back to android 9, is to find android 9 firmware with u4 security bit
Ok I unlocked the boot while on Android Q and it messed up my fingerprint sensor. I was told that if you downgrade to Android Pie that it would fix my issue. What i need to know is , does this phone have a kfuse that stops us from downgrading like some other brand phones? How do i flash the downgrade zip from Asus website? Any help is appreciated. Also has anyone else in here downgraded from Android Q to Android Pie without making a brick lol .
Follow this thread, maybe you will get the result
https://forum.xda-developers.com/zenfone-6-2019/help/how-to-downgrade-android-q-to-p-t4023843
I updated to Android 11 Developer Preview by OTA on my Verizon Pixel 3 only to find that ADB sideloading and any normal path to downgrade has been disabled. Does anyone have any idea of how I would get back to Android 10 now? This variant does not have to option to unlock the bootloader.
mattyb132 said:
I updated to Android 11 Developer Preview by OTA on my Verizon Pixel 3 only to find that ADB sideloading and any normal path to downgrade has been disabled. Does anyone have any idea of how I would get back to Android 10 now? This variant does not have to option to unlock the bootloader.
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As far as I know from my little research you can't downgrade without a unlockable bootloader. You have to wait till it goes from a developer preview to beta then you should be able to downgrade by opting in and take the OTA to beta then opting out and taking the OTA to downgrade back to Android 10, same as prior years.
mattyb132 said:
I updated to Android 11 Developer Preview by OTA on my Verizon Pixel 3 only to find that ADB sideloading and any normal path to downgrade has been disabled. Does anyone have any idea of how I would get back to Android 10 now? This variant does not have to option to unlock the bootloader.
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As mentioned above you have to wait for the public beta and opt into that and take that ota. Then opt out and, if it is the same as prior years, you will get an ota to downgrade you.
Hi,
After I manually erased all the partitions on my Pixel (Sailfish) by using fastboot erase < name of the partition) on bootloader screen (please don't ask me why I did that :-| ) , I am not able to install Android 8.1 or any newer Android versios on that. I can install only Andorid 7.11 to 8.0 versions from google factory image site.
if I install 8. 1 or newer version, the device constantly reboots and sometimes stops in stock recovery or on the bootloader screen. I have tried pretty much everything with no sucess. Before erasing partitions, phone was working fine with Android 10 with December 2019 updates.
I will be ok and satisified if I can at least get Android 8.1 with July 2018 updates. Can someone please help me figure out what the heck is wrong with my device. There is no physical, or electrical damage on the device whatsoever.
Thanks.
JanuGerman said:
Hi,
After I manually erased all the partitions on my Pixel (Sailfish) by using fastboot erase < name of the partition) on bootloader screen (please don't ask me why I did that :-| ) , I am not able to install Android 8.1 or any newer Android versios on that. I can install only Andorid 7.11 to 8.0 versions from google factory image site.
if I install 8. 1 or newer version, the device constantly reboots and sometimes stops in stock recovery or on the bootloader screen. I have tried pretty much everything with no sucess. Before erasing partitions, phone was working fine with Android 10 with December 2019 updates.
I will be ok and satisified if I can at least get Android 8.1 with July 2018 updates. Can someone please help me figure out what the heck is wrong with my device. There is no physical, or electrical damage on the device whatsoever.
Thanks.
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Click to collapse
There is a difference and something strange, that I can't seem to grasp, between any version of Android 8.0 or prior and Android 8.1 or newer. some partition(s), checksum or a flag seems to be off...goddamnit!:crying:
JanuGerman said:
There is a difference and something strange, that I can't seem to grasp, between any version of Android 8.0 or prior and Android 8.1 or newer. some partition(s), checksum or a flag seems to be off...goddamnit!:crying:
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Click to collapse
Well, I was able to get a copy of persist.img from someone online and restore the /persist partition on my OG Pixel (Sailfish) and now I am able to boot into Android 10. if someone needs any help in this regard, I will be more than happy to help. Thanks. ciao