OTA Update possible from lp to mm after unrooting? - P8lite Q&A, Help & Troubleshooting

My gf wants mm so badly, but she does not want to do all the flash work again, plus wiping. Lazy.
She has unlocked bootloader and root. Version B140.
She just received the OTA B181 and I was wondering if a normal update would work, just removing the root before. I know that in Samsung phones that does the trick.
Also: will the recovery be overwritten? Will the bootloader remain unlocked (i think so)?
(Also i just read something about that bug that block the update at 4%, is it the B171 or it affects the B181 aswell?)
Thank you guys, I know theese may sound noob questions.

Bootloader remains unlocked, maybe not necessary unroot if you do a local update
Inviato dal mio ALE-L21 utilizzando Tapatalk

Related

Upgrading from B170 to B313/Downgrading back to earlier version

Hi guys,
New to the forum here. I've flashed B170 a while back to get the most stable Lollipop edition, but I'd really like to try Marshmallow. The thing is, I can't figure out how to downgrade it back to B100/B121/B130 or to Upgrade it to B313. Is it possible to do either of those two things without an unlocked bootloader? There doesn't seem to be a way of flashing any packages on the phone, so I've sort of resigned myself to having to flash it via adb, but is this possible when I don't have an unlock code for the bootloader? Thanks for any help; I've really read through all the threads, but I couldn't come up with an answer.
Hi !
In order to upgrade to MM, you will have to downgrade to an upgradable version like B140. All the things you need are in the MM Upgrade topic of this forum.
In order to rollback from MM fo Lollipop, everything is explained in the same topic but you'll have to download a temporary system (B300) and then you'll be able to downgrade. Anyway, everything is in the MM Update topic.
I don't think you have to unlock bootloader to do all that but it would be easier because you would be able to use Honor 7 Multitool which is a software that does everything for you in no time
Good luck (MM version of the Honor 7 is awesome !)
Envoyé de mon PLK-L01 en utilisant Tapatalk
Thanks for the reply! However, you can't use the B300 rollback on B170 (which is a Lollipop rom), can you? I've read the Marshmallow topic, and I was none the wiser - I can't seem to figure out if there's any way to get back to an upgradable version without flashing with the Honor tool (which requires an unlocked bootloader, non?). Sorry for the n00b-factor!
rebanm said:
. Sorry for the n00b-factor!
Click to expand...
Click to collapse
so many treads around here described the solution to do! Please use the search engine too
read following from there: http://forum.xda-developers.com/showpost.php?p=64673136&postcount=74
and...
try to flash the B313 Rollback file first!
Maybe it will stop with "not successful!" nearly ~93% but THIS DOESN’T MATTER! a reboot should bring you to interim B300. Then you should be able to flash the B121 Full update out of your dload folder from your internal SD. If this work, you should be able to update to B313. You do not lost your personal data, but make a backup to be sure!

Bootloader CPB3 910C

Hi.
I have New rom CPB3 from xeo csc
Can someone tell me if New bootloader cpb3 is locked?
In COJ5 yes.
But I don't know if i can return and make downgrade now
Enviado desde mi SM-N910C mediante Tapatalk
francescnogales said:
Hi.
I have New rom CPB3 from xeo csc
Can someone tell me if New bootloader cpb3 is locked?
In COJ5 yes.
But I don't know if i can return and make downgrade now
Enviado desde mi SM-N910C mediante Tapatalk
Click to expand...
Click to collapse
You can try
downgrade to 4.4.4? you can test and tell me, please?
Guys, don't wait for a new update with a bootloader that should be unlocked for downgrade to kitkat or LP 5.0.1.
It will never happen. We need to find a a way alone.
Why do people keep posting the bootloader is locked
it isnt locked it wont allow a roll back from U2 to U1
N910CXXU1COI4
N910CXXU2CPB1
This may have been done for various reasons
changes to efs changes to ril
samsung just being d***k heads etc..
one solution is to take the image you require unpack it and change its id
N910CXXU1COI4
change to
N910CXXU2COI4
it would flash then
there is also S2 now it may well be you cant roll back from S2 to U2
no idea havnt tried, but i suspect it will be fine and the 2 part is the key
Did anyone tired CPB3 ?
Also got the lastest update for XEO - CPB3.
Bootloader stayed the same - it's COJ5, so there'se so way you can go back (not officially at all).
May'be if you've skipped the COJ5 update and came to CPB3 from some older 5.1.1 version, it's possible.

Root and Warranty

Hi. Reading many threads I understood the only way to root the phone is by bootloader unlock.
But I haven't never understood if one or both of these procedures can invalidate warranty (like Samsung) or not.
Inviato dal mio SM-N9005 utilizzando Tapatalk
Unlocking bootloader will void the warranty. There are plenty warnings of this!
I am not sure if relocking bootloader will undo this interaction -- probably not...
Thank you. I read a lot but I completely missed this warning. Sorry and thank you again for the answer.
Inviato dal mio SM-N9005 utilizzando Tapatalk
Hello dear developers...Recently I bought a used Huawei p9 lite vns-l21c150b106 single sim...It is cosmote branded and I want to debrand it cause I found out by searching that there are several updates such as b150...When I try to update my phone it says that has the latest updates...I wanted to ask if there is a way to debrand it and return to official Europe stock rom without void my warranty...I found a way in the internet through local update via sd card but I don't find the stock rom Europe(I live in Greece)for my single sim vns-l21...I found only vns-l21c432b160 which is for dual sim...I think that vns-l21c150b160 must be for my single device,i suppose that the difference is c150 and c432...any solution please???

Update to b370 bootloader and root

Hey xda community:
After couple weeks of testing custom Roms i decided Go Back to Stock Android 6 because of Battery drain so fast in the custom roms.
(4h work with bricked p9lite afte roll back to MM, my wife was very angry so this time i asked here in Forum for help / Tipps before Go further with my Phone)
Now i have Bootloader unlock and root.
System today: L31c432b160
Meticulus twrp installed
OTA Update available to b370.
Question 1:
Should i do something before Update?
Unroot?
Bootloader lock? (How?)
Question 2:
What will happen after Update when i not unroot and lock?
Bootloader Lock? Root away?
Question 3:
After Update to N can i root?
Because i want adaway running...
I search XDA but there are so many Threads... With yes for MM...
Thx @all for Reading.
Hello!
First step if you have a functional firmware B160 is to install Firmware Finder and Firmware Finder Proxy
and make update to B370 (1,94 Gb size) via FF+Proxy+System update.
After that we see what to do next...
PS: if you want root in the future is wise to unlock bootloader when you have B370 on...
Why Firmware Finder?
I got OTA Message in hicareapp...
Edith:
Thx for your Tipp but i want Understand why Not ota update?
Gesendet von meinem HUAWEI VNS-L31 mit Tapatalk
So i am on b370 with normal HiCare OTA Update...
For root i search through Forum

Will i receive updates after root

Hey...
After unlocking bootloder and rooting MI A1 will i receive OTA updates in future??
I have the same question can anyone clarify this
You should but it won't install because of having a custom recovery but you could flashfire to flash any OTA updates you get
Sent from my Mi A1 using Tapatalk
Yes you will as long you don't modified or install custom recovery or custom rom
Yes you will, as all above said. But DON'T INSTALL THEM, it will make you phone enter into a bootloop since root modify the boot partition. If you want to keep yor phone updated and rooted you shouldn't use OTA updates, it's hard to say that it will install correctly.
Hello, I think it may be good thread to ask my question. Please forgive me but I am a super newbe.
I have Mi A1. I have unlocked bootloader and phone is rooted. My goal was to be able to edit buildprop to add lines to activate google camera with EIS stabilization and HDR+ - and in fact I made this.
I have september security update - it was before root.
Please explain me what does it mean that bootloader is unlocked - is my phone unsecured?
So how to install next updates without loosing camera options? I understood that if I have OTA updates I will loose root, so I also loose camera option. Am I right?
I want to have camera options and safe phone.
I would be really grateful if someone could help me understand this things. :fingers-crossed:

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