How to rollback to stock? - ZTE Axon 7 Questions & Answers

Hi there, im currently on the leaked oreo beta on my A2017G but since this month there should be the official oreo out i wish to rollback to stock. Do i just need to flash latest rom on it? Do i need to relock the bootloader and remove twrp to get new ota updates?

https://forum.xda-developers.com/axon-7/how-to/guide-return-to-stock-custom-rom-t3634369 (like i also suggested at reddit )

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[ROOT] Newbie Question

I am planning to root my ZE551ML. I have .194 firmware.
Will it work fine to root using method 3 with my current firmware? And I can update OTA if ever there's an update right?
Another thing, will I be forced to reset my phone or wipe data? I hope not coz most of my accounts like steam, etc. are already linked.
Thanks for the replies. I appreciate all input as I am still learning.
I hope to receive any response..
If you don't want to unlock your bootloader or reset/wipe your phone's data(like me) then use method 2 from this link:
http://forum.xda-developers.com/showthread.php?t=3114063
Sent from my ASUS_Z00AD using XDA-Developers mobile app
Guys, I want to know whether the Asus official bootunlocker tool can be used in the MM .111 beta build.
Also, can I move to cm 13 directly from MM beta build after unlocking bootloader??....or should I downgrade to lollipop to do so....??
rohithramesh96 said:
Guys, I want to know whether the Asus official bootunlocker tool can be used in the MM .111 beta build.
Also, can I move to cm 13 directly from MM beta build after unlocking bootloader??....or should I downgrade to lollipop to do so....??
Click to expand...
Click to collapse
There's no official asus bootloader unlocking tool for any MM rom coz there's no official MM rom for zf2. So you should to downgrade to official LP
and then you should unlock boorloader and then you can install whatever you want.

Is it worth upgrading to Nougat from MM ?

Hello,
I have L21C02B122, branded by Vodafone. I didn't get Nougat so I was thinking of changing to C432. Is Nougat worth it ? How buggy is it ?
How easy is it to change to C432 ? Can you point out a thread...
Thanks
bunilla said:
Hello,
I have L21C02B122, branded by Vodafone. I didn't get Nougat so I was thinking of changing to C432. Is Nougat worth it ? How buggy is it ?
How easy is it to change to C432 ? Can you point out a thread...
Thanks
Click to expand...
Click to collapse
Its still in development, in my opinion it is more valuable to save the varranty. Nougat is faster but wait for official OTA since with third-party ROM providers you dont know if youre going to be able to install new upgrades.
Nougat is so fast!! Interface and browser I love IT!
bunilla said:
Hello,
I have L21C02B122, branded by Vodafone. I didn't get Nougat so I was thinking of changing to C432. Is Nougat worth it ? How buggy is it ?
How easy is it to change to C432 ? Can you point out a thread...
Thanks
Click to expand...
Click to collapse
I came from Vodafone too.
Used this toolkit to debrand:
https://forum.xda-developers.com/hu...pe-vns-l31-toolkit-bootloader-t3432873/page67
Later upgraded to Nougat via OTA and everything is working fine. I do not use any root or TWRP modifications.
it is worth it. i don't know if the official ota for c432 is out yet, but if it's not, you could install b370 from one of the guides here. i don't know if that's beta or not. if you want to receive ota updates you could always flash back to stock mm and then install the official ota to nougat

P10 lite official OTA updates HELP!!!

I have flashed several custom roms to my L01A 4GB Single sim and flashed the stock B183 stock rom and locked my bootloader. Why is it that I did not receive the OTA updates from the built in updater for B197, B199 and B203? I had to use FF to get these three updates. Have I broken my built in OTA? Do I know have to rely on FF? Anyone who can help, thanks

Checking bootloader version on the phone

Hi, how do I check my current bootloader version that is on my phone? And how do i know what version of bootloader will be in any stock rom i want to flash?
I don't want to overwrite with older bootloader. Need to know the current and the next one i will flash.
My device is from Europe and I have NPN25.137-92 installed.. I think this is not the latest stock nougat for my region.
Cheers.
up
up
wiceqq said:
Hi, how do I check my current bootloader version that is on my phone? And how do i know what version of bootloader will be in any stock rom i want to flash?
I don't want to overwrite with older bootloader. Need to know the current and the next one i will flash.
My device is from Europe and I have NPN25.137-92 installed.. I think this is not the latest stock nougat for my region.
Cheers.
Click to expand...
Click to collapse
No need to push your question everyday. If someone is able/wants to answer he will do.
First of all: NPN25.137-92 is not the European firmware, it's the one for India and Brazil.
The latest one in Europe seems to be NPN25.137-93-14, since yesterday there is another update with version number NPN25.137-93-18 out incl. August security patch but until now only US users (software channel RETUS) have confirmed it. For India/Brazil (your firmware) the latest Nougat firmware is NPN25.137-92-14.
Have you fastboot flashed some firmware on your device so that you are on NPN25.137-92 now? That could be the reason you donĀ“t receive any further OTA updates.
Your bootlader version should be visible when you boot into stock recovery.
Yes, I must have flashed pretty wrong firmware, and now I want to get back on the track. Though I dont remember and I dont have knowledge what was flashed before that. Now I wonder what should be my next step in order to have latest European nougat, or oreo.
wiceqq said:
Yes, I must have flashed pretty wrong firmware, and now I want to get back on the track. Though I dont remember and I dont have knowledge what was flashed before that. Now I wonder what should be my next step in order to have latest European nougat, or oreo.
Click to expand...
Click to collapse
Flash latest european firmware NPN25.137-93-14 via fastboot. It can be found somwhere here in the Moto G 5+ threads or you can download it with Lenovo Smart Assistant: https://support.lenovo.com/de/de/downloads/ds101291
That should keep you back on track.
If you can't wait you can update to Oreo with the available OTA found here:
https://forum.xda-developers.com/g5...fficial-moto-g5-g5-plus-t3848246/post77856408 ( Read OP of that thread to find out how). But as I posted above there's a newer nougat firmware out in the US so you may not receive future Oreo updates if you use this OTA.
Sent from my Moto G5 Plus using XDA Labs
Wolfcity said:
Flash latest european firmware NPN25.137-93-14 via fastboot. It can be found somwhere here in the Moto G 5+ threads or you can download it with Lenovo Smart Assistant: https://support.lenovo.com/de/de/downloads/ds101291
That should keep you back on track.
If you can't wait you can update to Oreo with the available OTA found here:
https://forum.xda-developers.com/g5...fficial-moto-g5-g5-plus-t3848246/post77856408 ( Read OP of that thread to find out how). But as I posted above there's a newer nougat firmware out in the US so you may not receive future Oreo updates if you use this OTA.
Sent from my Moto G5 Plus using XDA Labs
Click to expand...
Click to collapse
Need an advice: I'm currently on POTTER_NPNS25.137-93-10, OTA says i can update it to POTTER_NPNS25.137-93-14.. Then I could get Oreo OTA from the thread above. In case of any further trouble: will it be safe to return to nougat POTTER_NPNS25.137-93-10 via fastboot? If yes, if then I update again to POTTER_NPNS25.137-93-14, it is safe to take nougat OTA again? And then oreo OTA again? Hope you get my point.
wiceqq said:
Need an advice: I'm currently on POTTER_NPNS25.137-93-10, OTA says i can update it to POTTER_NPNS25.137-93-14.. Then I could get Oreo OTA from the thread above. In case of any further trouble: will it be safe to return to nougat POTTER_NPNS25.137-93-10 via fastboot? If yes, if then I update again to POTTER_NPNS25.137-93-14, it is safe to take nougat OTA again? And then oreo OTA again? Hope you get my point.
Click to expand...
Click to collapse
No, that's not safe. Downgrading is always a risky thing because of the bootloader and taking OTA after that could completely hardbrick your phone.
So if you're once on 93-14 you shouldn't flash an older firmware than this. Same applies to downgrading from Oreo to Nougat.
Sent from my Moto G5 Plus using XDA Labs
Wolfcity said:
No, that's not safe. Downgrading is always a risky thing because of the bootloader and taking OTA after that could completely hardbrick your phone.
So if you're once on 93-14 you shouldn't flash an older firmware than this. Same applies to downgrading from Oreo to Nougat.
Sent from my Moto G5 Plus using XDA Labs
Click to expand...
Click to collapse
Well, in case of firmware, I cannot find direct 93-14 fastboot rom for download. I have found 93-10 only, that's why I'm concerned about not having the most up to date rom version on my hard drive to flash in case of<>.
wiceqq said:
Well, in case of firmware, I cannot find direct 93-14 fastboot rom for download. I have found 93-10 only, that's why I'm concerned about not having the most up to date rom version on my hard drive to flash in case of<>.
Click to expand...
Click to collapse
You can download it with Lenovo Smart Assistant, worked for me. I can give you a mirror too, here it is:
https://drive.google.com/file/d/1e4VLFL0FzXsTycC78LPRxHaPqX8MJ3iy/view?usp=drivesdk
Sent from my Moto G5 Plus using XDA Labs
Wolfcity said:
You can download it with Lenovo Smart Assistant, worked for me. I can give you a mirror too, here it is:
https://drive.google.com/file/d/1e4VLFL0FzXsTycC78LPRxHaPqX8MJ3iy/view?usp=drivesdk
Sent from my Moto G5 Plus using XDA Labs
Click to expand...
Click to collapse
Thank you. What in case I'm unlocked and in order to use google pay I need custom recovery and flashing magisk. How do i get back to stock oreo recovery then? I know it's a bit of offtopic, but maybe you can help me.

bootloader unlock Can You Receive Updates via Ota or No?

I am curious about these issues, my question is the following when I unlock my Bootloader I can do an update via OTA when it arrives on my device? Or is my phone going to have Hard Brick?
I want to give a Downgrande on my smartphone but it is still in stock without any modification. And through the tutorials I read ask for the unlock Bootloader. My intention is to only downgrade. A friend of mine gave the following idea: "unlock the bootloader to then downgrade and after it has been successfully done." I search how to lock the bootloader again using CMD to put a system with the bootloader locked and so in the future I will be able to receive updates via Ota. " Does This Worker Ideas In Practice?
This my Frist Post here If I make a mistake, tell me, we will not repeat.:fingers-crossed:
When it comes to being able to receive updates when bl is unlocked, that's a yes, it will work fine and won't affect your phone's functionality.
On the other hand downgrading is generally a bad idea. The problem is, when you update your phone your bootloader also gets an update. All parts of the OS except for the bootloader can be downgraded to a previous version, and if you do that, the downgraded OS can function normally on the newer bootloader.
Now comes the tricky part. If you try to do an OTA on a downgraded OS with a new bootloader, the OTA will treat the bootloader as if it were the old one, and will overwrite parts of it that it shouldn't, which will corrupt it. And there you have a pricey paperweight.
The only way of updating a downgraded device is to flash it clean with a newer version (or the version same as the bootloader).
Now what is the reason you'd want to downgrade?
After Unlocked Bootloader You Can't Get OTA Updated Even You Relock Bootloader ., tested On Moto G5s
Model X1795
However During try to Relock or downgrade Oreo 8.1 to 7.1.1 You May Get Complete Dead Your Phone as my phone goes During downgrade .
Rakesh Mahto said:
After Unlocked Bootloader You Can't Get OTA Updated Even You Relock Bootloader ., tested On Moto G5s
Model X1795
However During try to Relock or downgrade Oreo 8.1 to 7.1.1 You May Get Complete Dead Your Phone as my phone goes During downgrade .
Click to expand...
Click to collapse
My bootloader is unlocked.
I wanted to upgrade to the latest firmware and because I was rooted I flashed the firmware I was on at that moment (no down - or upgrade) again and after that I was able to apply and install every single OTA up to the latest. I could have flashed the latest Oreo firmware directly too but I wanted to test this way and to update by flashing latest firmware would have been possible after that too.
So updating via OTA with an unlocked bootloader was no problem for me.
In the end you get the unlock code from Motorola itself and it would be kind of strange if they won't deliver updates anymore for a feature they provide for their devices.
Sent from my Moto G5 Plus using XDA Labs
Need Android 8.1 Oreo February security Patch 2019
Wolfcity said:
My bootloader is unlocked.
I wanted to upgrade to the latest firmware and because I was rooted I flashed the firmware I was on at that moment (no down - or upgrade) again and after that I was able to apply and install every single OTA up to the latest. I could have flashed the latest Oreo firmware directly too but I wanted to test this way and to update by flashing latest firmware would have been possible after that too.
So updating via OTA with an unlocked bootloader was no problem for me.
In the end you get the unlock code from Motorola itself and it would be kind of strange if they won't deliver updates anymore for a feature they provide for their devices.
Sent from my Moto G5 Plus using XDA Labs
Click to expand...
Click to collapse
Looking For Android 8.1 Oreo February security Patch 2019 For Moto G5s
Model: X1795
Twrp Backup Or Any Other Of Official Rom Of Android 8.1 Oreo , Including February security Patch 2019 Thanks
Rakesh Mahto said:
Looking For Android 8.1 Oreo February security Patch 2019 For Moto G5s
Model: X1795
Twrp Backup Or Any Other Of Official Rom Of Android 8.1 Oreo , Including February security Patch 2019 Thanks
Click to expand...
Click to collapse
This is a thread for potter (Moto G5+) so your question most probably won't be answered here.
Move to https://forum.xda-developers.com/moto-g5s
Sent from my Moto G5 Plus using XDA Labs
I am planning on to unlock bootloader only will I continue recieving official updates from Samsung and able to install them (not flashing that, OTA ones). I am not going to install custom recovery or kernel or even custom rom. Will it work that way?

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