Hello,
1.Can we downgrade to 7.0 from 8.1? If yes,how?
2.Problems which may arise during downgrade?
3.If no why?
I'am fedup with the performance of 8.1,bootloops sometimes, network problems,and majorly battery backup and low volume issue.
#TIA
anhoxhrs said:
Hello,
1.Can we downgrade to 7.0 from 8.1? If yes,how?
2.Problems which may arise during downgrade?
3.If no why?
I'am fedup with the performance of 8.1,bootloops sometimes, network problems,and majorly battery backup and low volume issue.
#TIA
Click to expand...
Click to collapse
Did you installed the twrp version of an Oreo rom or which rom do you have. Did you have an unlocked bootloader? How did you update to oreo?
Upgraded to 8.1 (stock)through adb,i have bootloader unlocked and also have twrp.(no custom rom installed)
anhoxhrs said:
Upgraded to 8.1 (stock)through adb,i have bootloader unlocked and also have twrp.(no custom rom installed)
Click to expand...
Click to collapse
You cannot downgrade the bootloader if you flash the stock nougat rom by fastboot, otherwise it's hard bricked.
But I don't know if stock nougat rom will work with stock oreo bootloader @echo92, you know it maybe?
anhoxhrs said:
Upgraded to 8.1 (stock)through adb,i have bootloader unlocked and also have twrp.(no custom rom installed)
Click to expand...
Click to collapse
strongst said:
You cannot downgrade the bootloader if you flash the stock nougat rom by fastboot, otherwise it's hard bricked.
But I don't know if stock nougat rom will work with stock oreo bootloader @echo92, you know it maybe?
Click to expand...
Click to collapse
If stock Oreo is downgraded to Nougat, the bootloader may work with either firmware, I don't know for certain. However, OTA updates must be avoided if there's been a downgrade to Nougat or earlier (unless you're using the Oreo OTA); attempts to use old OTA updates on downgraded firmware is a great way to hard brick (and currently without recourse - we do not currently have a working Oreo blankflash).
However, if you downgrade your firmware, I am concerned you may lose SIM access/IMEI, given your baseband is on .77R (Oreo), whereas downgrading to Nougat would result in a baseband of .62.02R due to changes between the 2 basebands. You may have to consult this thread if you do lose your SIM/IMEI https://forum.xda-developers.com/moto-g4-plus/how-to/guide-moto-g4-plus-imei0-issue-t3859068
@anhoxhrs Have you considered replacing your battery, or at least ruled out battery issues like a failing battery? I'm just wondering if the bootloops and poor battery life may be due to the battery. Also, when you updated to Oreo, did you clean flash or factory reset your device?
The SOT has reduced by 30%,and most of the battery is consumed by mobile standby(weird).Its a clean flash. being my primary phone, 8.1 is troublesome.Yeah the battery was pretty good before the update.Chargeing time also has increased.for eg- 95 to 100 about 1/2 hr to 45 mins.
Related
Hello,
Can I downgrade completly with the bootloader on Marshmallow and then upgrade to Nougat?
I want to lock my bootloader.
My G2 bricked after doing this. But I don't know if this would happen to my G4 Plus again
inFiniTyz_Z said:
Hello,
Can I downgrade completly with the bootloader on Marshmallow and then upgrade to Nougat?
I want to lock my bootloader.
My G2 bricked after doing this. But I don't know if this would happen to my G4 Plus again
Click to expand...
Click to collapse
If you wish to simply re-lock your bootloader, the easiest thing is to flash this fastboot stock ROM (which is Nougat) and use the locking script as directed in the first post. https://forum.xda-developers.com/moto-g4-plus/how-to/moto-g4-plus-xt1640-43-athene-npj25-93-t3549369 Of course, this may wipe your data - so back up, and the relocking may or may not work, in which case you may have to wait for a more up to date fastboot stock ROM to become available.
If you were to downgrade to Marshmallow, you cannot downgrade your bootloader and GPT partitions, at best, your existing bootloader would try to prevent you from downgrading those partitions. At worst, you'll brick your device again if you were to flash those - though we've got possible ways of fixing that, it's not a route I'd want to go down. Flashing the rest of Marshmallow is no problem, however, ensure you have the correct MM firmware for your device and territory.
Will this version work for my country(Germany) without OTA trouble?
inFiniTyz_Z said:
Will this version work for my country(Germany) without OTA trouble?
Click to expand...
Click to collapse
Should be okay to flash - the 93-14 build appears to be the global build that was deployed by Motorola, and should be eligible for the 93-14.4 (March 2017 security update) whenever that arrives in the EU/UK I've flashed the stock ROM onto my XT1642 several times without issue.
echo92 said:
Should be okay to flash - the 93-14 build appears to be the global build that was deployed by Motorola, and should be eligible for the 93-14.4 (March 2017 security update) whenever that arrives in the EU/UK I've flashed the stock ROM onto my XT1642 several times without issue.
Click to expand...
Click to collapse
THANK YOU IT WORKED AND THE WARNING DISAPPEARED. I am on Nougat, locked and its working like a charm
I WOULD KISS YOUR BUTT IF ITS HAVE TO BE
Hello,
I have a ZTE Axon 7. I have not received the OTA update to Android 7.1. Just now, I am on 6.0.1 (ZTE A2017GV1.0.0B08). My device has only the stock features (I have no unlocked anything).
So, my question is, which is the ordered and simplest steps to have a phone with a stock ROM (updated to 7.1) and with Bootloader, TWRP, and root?
I would like to maintain the stock ROM in order to use Google Daydream and Maintain an acceptable quality on Camera and Audio. I heard that LOS have some issues on these aspects.
Thanks,
youngz89
https://forum.xda-developers.com/axon-7/how-to/guide-install-twrp-unlock-bl-flash-t3517379
follow this guide until B
then, reflash stock recovery, upgrade your phone with ota.
after that, reenter edl mode, and flash twrp 3.1
look that the first twrp you flash is only to unlock, its signed and dont work. so dont keep it.
I use aosp extended, works really good, no manual camera unless you flash stock, sound works good
youngz89 said:
Hello,
I have a ZTE Axon 7. I have not received the OTA update to Android 7.1. Just now, I am on 6.0.1 (ZTE A2017GV1.0.0B08). My device has only the stock features (I have no unlocked anything).
So, my question is, which is the ordered and simplest steps to have a phone with a stock ROM (updated to 7.1) and with Bootloader, TWRP, and root?
I would like to maintain the stock ROM in order to use Google Daydream and Maintain an acceptable quality on Camera and Audio. I heard that LOS have some issues on these aspects.
Thanks,
youngz89
Click to expand...
Click to collapse
Or you can just use my toolkit which does it all for you https://forum.xda-developers.com/axon-7/development/tool-axon7toolkit-t3573108
Bkroes, using your tool, you suggest to update at nougat and, after the update, unlock the bootloader and root the device?
I have not received the OTA update, so I am thinking to update with FOTA.
youngz89 said:
Bkroes, using your tool, you suggest to update at nougat and, after the update, unlock the bootloader and root the device?
I have not received the OTA update, so I am thinking to update with FOTA.
Click to expand...
Click to collapse
Download the 7.1.1 zip and put it in the sd, then go to updates
Yes, but can I unlock the bootloader and root the device after the update? Or I have to unlock the bootloader before the update?
Where you able to do it?
I was in B.05 version (the one of the 14-4 update) and i flashed the (soak test?) -11 build, with bootloader,partitions and everything, i was hopping the bootloader didn't flash (like always showing error) , but it did,it flashed the bootloader, and now i'm in B0.3 version, and the phone didn't brick, i thought it wasn't possible....!!
I'm happy because i was looking for a way to downgrade the bootloader, but i never thought to do it like that.......
What do you think??
UPDATE: NOW, i flashed Marshmallow firmware and the bootloader downgraded correctly. i have had flashed marshmallow before, and it gave me an error, but now it flashed and now i'm in B0.0E version....
HOW?!?!?
If it's the 93-11 build, that's not a soak test - that was the first of the official Nougat updates (though only formally released in India if I recall - so in other territories you may not get any OTA updates).
Regardless, as I understand it, downgrading your bootloader may not brick your device - what may brick your device is downloading and updating via OTA updates subsequently.
By the way, what was the reason for wanting to downgrade your bootloader? If you wanted to downgrade your system, you could have just flashed Nougat or Marshmallow, just not flashing the GPT or bootloader partitions.
The reason is that i want to update by ota from marshmallow to nougat to get a smooth nougat, because if i flash it with fastboot it has got a lot of lag (i don't know why, but is very noticeable)
I just updated from 6.0 to 7.0 (-14) so it really downgraded the bootloader.
So if someone else want to downgrade the bootloader, you can flash -11 bootloader!!
Update. Again; flashed marshmallow firmware and bootloader downgraded too. What is going on??
ivan290 said:
Update. Again; flashed marshmallow firmware and bootloader downgraded too. What is going on??
Click to expand...
Click to collapse
Fastbooting Marshamallow will include Bootloader partition by default--you have to skip bootloader flashing to NOT downgrade bootloader. N bootloader will work fine with Marshmallow.
Now i updated to 14-8 version (B.06 bootloader version) (June patch) and i CAN'T downgrade my bootloader anymore, even flashing -11, marshmallow, or any other firmware.. Strange
ivan290 said:
Now i updated to 14-8 version (B.06 bootloader version) (June patch) and i CAN'T downgrade my bootloader anymore, even flashing -11, marshmallow, or any other firmware.. Strange
Click to expand...
Click to collapse
Possibly to prevent users from downgrading and opening up the security vulnerability that was patched in the May 2017 security update. https://alephsecurity.com/2017/05/23/nexus6-initroot/ https://www.xda-developers.com/moto...a-root-shell-patched-in-mays-security-update/
At any rate, seems that other users trying to downgrade their bootloader from B1:06 hard bricked (and the blankflash we have doesn't appear to function). Be careful.
echo92 said:
Possibly to prevent users from downgrading and opening up the security vulnerability that was patched in the May 2017 security update. https://alephsecurity.com/2017/05/23/nexus6-initroot/ https://www.xda-developers.com/moto...a-root-shell-patched-in-mays-security-update/
At any rate, seems that other users trying to downgrade their bootloader from B1:06 hard bricked (and the blankflash we have doesn't appear to function). Be careful.
Click to expand...
Click to collapse
I tried it, and now it just seems to have become a paperweight from the june patch.
As you mentioned the blank files are also not working, what should I do now:crying::crying:
echo92 said:
Possibly to prevent users from downgrading and opening up the security vulnerability that was patched in the May 2017 security update. https://alephsecurity.com/2017/05/23/nexus6-initroot/ https://www.xda-developers.com/moto...a-root-shell-patched-in-mays-security-update/
At any rate, seems that other users trying to downgrade their bootloader from B1:06 hard bricked (and the blankflash we have doesn't appear to function). Be careful.
Click to expand...
Click to collapse
Oh!! Thank you, now i understand everything.... Thank you man!
I'm having Moto g5 plus Indian variant xt1686. I have installed a custom ROM Resurrection remix and I'm currently running it.I want to get back to stock rom. I went through many existing threads only to get myself confused. I want you guys to help me get back to stock ROM so that I can get OTA updates.
1. I have working volte and IMEI till now. I didn't take back-up of persist or efs as I was lacking knowledge. Can I take back-up of those now for going back to stock. If yes then suggest how?
2. I don't remember my build number from which I unlocked my bootloader. Should I lock the bootloader again to get OTA? If not then please suggest any way to get back to stock whether Oreo or nougat (get updates to Oreo then).
kash664 said:
I'm having Moto g5 plus Indian variant xt1686. I have installed a custom ROM Resurrection remix and I'm currently running it.I want to get back to stock rom. I went through many existing threads only to get myself confused. I want you guys to help me get back to stock ROM so that I can get OTA updates.
1. I have working volte and IMEI till now. I didn't take back-up of persist or efs as I was lacking knowledge. Can I take back-up of those now for going back to stock. If yes then suggest how?
2. I don't remember my build number from which I unlocked my bootloader. Should I lock the bootloader again to get OTA? If not then please suggest any way to get back to stock whether Oreo or nougat (get updates to Oreo then).
Click to expand...
Click to collapse
From what I believe, you should definitely backup your EFS and Persist right now while it's all good.
If you don't remember your last stock build number, it is safe to use the latest build for your region.
Once you flash a fastboot ROM and everything's good to go, there's absolutely no need to relock bootloader as the script in the OTA only checks for system modifications and if it finds any on your phone, the OTA will not be applied and the update will eventually fail. To ensure that you are able to apply OTAs without any hassle, I recommend you don't do ANY system modifications like root or camera mods or similar. Stick with the core OS and you'll be good to go.
You can alternatively use TWRP flashable ROMs by @NZedPred, they're like a newbie-proof solution to getting to stock ROM from virtually any ROM without losing any functionality as they only flash the OS part of the ROM and rarely do any changes to the HW functionality of the ROM like Radios and Sensors. If all else fails, you can always flash a TWRP flashable stock and be ready to go.
Or
You could simply download the Oreo fastboot ROM with the August security patch which is available at the moment but isn't the latest one as the latest October security patch rolled out to RETIN devices just a few days ago so I doubt that the full fastboot ROM would be available this early. But then again, if you flash the Oreo August patch, you can take the OTA to October patch and be just fine.
Note:
But a bit of advice, if you're planning to go back to Nougat using a Nougat fastboot ROM, I'd highly recommend the TWRP flashable as one can mess stuff up while trying to downgrade using a fastboot ROM as Moto phones have problems downgrading. It's all about these two partitions called "gpt" and "bootloader" which when not paying attention to while flashing can cause a hard-brick.
A safer approach would be to skip these two partitions while using a fastboot ROM to downgrade but I'd be honest and would suggest you to wait to be sure this would work as I myself haven't tried this while downgrading from one Android version to another as Oreo bought with itself some Modem and a few other changes in partitions as compared to Nougat.
If I were you, I would wait for some to confirm the part in the "Note" just to be absolutely sure that it'd work.
Thanks for the response
Thanks for your response.
I'll be going with your suggestion and flash the twrp flashable oreo.
psychopac said:
From what I believe, you should definitely backup your EFS and Persist right now while it's all good.
If you don't remember your last stock build number, it is safe to use the latest build for your region.
Once you flash a fastboot ROM and everything's good to go, there's absolutely no need to relock bootloader as the script in the OTA only checks for system modifications and if it finds any on your phone, the OTA will not be applied and the update will eventually fail. To ensure that you are able to apply OTAs without any hassle, I recommend you don't do ANY system modifications like root or camera mods or similar. Stick with the core OS and you'll be good to go.
You can alternatively use TWRP flashable ROMs by @NZedPred, they're like a newbie-proof solution to getting to stock ROM from virtually any ROM without losing any functionality as they only flash the OS part of the ROM and rarely do any changes to the HW functionality of the ROM like Radios and Sensors. If all else fails, you can always flash a TWRP flashable stock and be ready to go.
Or
You could simply download the Oreo fastboot ROM with the August security patch which is available at the moment but isn't the latest one as the latest October security patch rolled out to RETIN devices just a few days ago so I doubt that the full fastboot ROM would be available this early. But then again, if you flash the Oreo August patch, you can take the OTA to October patch and be just fine.
Note:
But a bit of advice, if you're planning to go back to Nougat using a Nougat fastboot ROM, I'd highly recommend the TWRP flashable as one can mess stuff up while trying to downgrade using a fastboot ROM as Moto phones have problems downgrading. It's all about these two partitions called "gpt" and "bootloader" which when not paying attention to while flashing can cause a hard-brick.
A safer approach would be to skip these two partitions while using a fastboot ROM to downgrade but I'd be honest and would suggest you to wait to be sure this would work as I myself haven't tried this while downgrading from one Android version to another as Oreo bought with itself some Modem and a few other changes in partitions as compared to Nougat.
If I were you, I would wait for some to confirm the part in the "Note" just to be absolutely sure that it'd work.
Click to expand...
Click to collapse
Thanks for your response.
I'll be going with your suggestion and flash the twrp flashable oreo.
kash664 said:
Thanks for your response.
I'll be going with your suggestion and flash the twrp flashable oreo.
Click to expand...
Click to collapse
Make sure to follow the flashing instructions mentioned by the thread OP properly
psychopac said:
Make sure to follow the flashing instructions mentioned by the thread OP properly
Click to expand...
Click to collapse
Yes. Hope everything turns out fine
kash664 said:
I'm having Moto g5 plus Indian variant xt1686. I have installed a custom ROM Resurrection remix and I'm currently running it.I want to get back to stock rom. I went through many existing threads only to get myself confused. I want you guys to help me get back to stock ROM so that I can get OTA updates.
1. I have working volte and IMEI till now. I didn't take back-up of persist or efs as I was lacking knowledge. Can I take back-up of those now for going back to stock. If yes then suggest how?
2. I don't remember my build number from which I unlocked my bootloader. Should I lock the bootloader again to get OTA? If not then please suggest any way to get back to stock whether Oreo or nougat (get updates to Oreo then).
Click to expand...
Click to collapse
I hope i can help !!
vishalrickz said:
I hope i can help !!
Click to expand...
Click to collapse
Sure sir
Hello everyone. Long time since i post.
I have serious problem. For some reason im not satisfied with a video performance and batterylife on Pie, and i wanna move back to Nougat (not Oreo). Yet Odin seems dosent alow me to do that. Please i wanna know if its possible, wich i presume it is, and what version of Odin should i use ? I do have downloaded 5 files official rom wich i already flashed last year from Oreo to Nougat, but i have problem flashing it from PIE to Nougat. What version of Odin do i need and what setting?
Dreadish said:
Hello everyone. Long time since i post.
I have serious problem. For some reason im not satisfied with a video performance and batterylife on Pie, and i wanna move back to Nougat (not Oreo). Yet Odin seems dosent alow me to do that. Please i wanna know if its possible, wich i presume it is, and what version of Odin should i use ? I do have downloaded 5 files official rom wich i already flashed last year from Oreo to Nougat, but i have problem flashing it from PIE to Nougat. What version of Odin do i need and what setting?
Click to expand...
Click to collapse
I have bootloader version 4 right now . Is it possible to use Oreo Rom with the same version 4 of bootloader and then i can flash from that too bootloader 1 oreo, and then to bootloader 1 Nougat? ? ?
Dreadish said:
I have bootloader version 4 right now . Is it possible to use Oreo Rom with the same version 4 of bootloader and then i can flash from that too bootloader 1 oreo, and then to bootloader 1 Nougat? ? ?
Click to expand...
Click to collapse
You can not downgrade bootloader versions. So if your on pie with version 4 bootloader the lowest you can go is the earliest version of Oreo with bootloader version 4. Anything with 3,2 or 1 bootloader can't be flashed.
My god. So there is no Odin way or any other way to bypass bootloader restriction?
Dreadish said:
My god. So there is no Odin way or any other way to bypass bootloader restriction?
Click to expand...
Click to collapse
As far as I know no you can't downgrade bootloader versions.
Thanks for the reply. I just flashed the earliest Oreo firmware with bootloader binary 4 wich is actually last big change in stable releases of Oreo. NExt 3 releases were only security updates. I cant get lower then that since two more Oreo firmwares before that had BL number 3 and 2 - Nougat starts with 1 unfortunately. I really hoped maybe guys on XDa figured this thing out too downgrade to lower BL numbers, but i guess its not possible. .If i knew that before, i would never upgrade this shi..t to PIe. Hopefully Oreo will do fine now.