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Oxygen OS 2.1.4 Downgrade?

Has anyone around here flashed OOS 2.1.4 using the recommended method and then flashed a different rom, Im tired of using OOS but i cant seem to find a way to flash CM13 again.

Just flash cm13 in a version of twrp with working firmware flashing. The firmware is included in official cm13 builds.

install TWRP again, and download and flash cm13?

Yes, as long as it's an offical build and you have a version of twrp that supports firmware flashing, like 2.8.6.0 or 3.0.0-1, it will flash everything it needs. If you flash something like sultans bulids flash offical cyanogenmod first then flash the modded build.

Hello!
First of all I'm sorry I'm late to the party ?.
I bought my OPO yesterday and I'm a newbie with all the flashing and so on. It happens to run Oxygen OS 2.1.4 as well and I was wondering if anyone could give me (a link to?) a tutorial to flash a new recovery and everything? I'd really appreciate it.
Thanks in advance

skinnyflirter said:
Hello!
First of all I'm sorry I'm late to the party .
I bought my OPO yesterday and I'm a newbie with all the flashing and so on. It happens to run Oxygen OS 2.1.4 as well and I was wondering if anyone could give me (a link to?) a tutorial to flash a new recovery and everything? I'd really appreciate it.
Thanks in advance
Click to expand...
Click to collapse
https://forums.oneplus.net/threads/...oader-install-custom-recovery-and-root.64487/
After this,you should be considering this one as OOs 2.1.4 is pretty outdated: https://forum.xda-developers.com/oneplus-one/general/guide-return-opo-to-100-stock-t2826541#login

lineageos has a good tutorial on flashing

Upgrade my OPO to latest build

I see threads on how to downgrade but none explaining how to upgrade to latest build. Most threads are years old 13.1.2-ZNH2KAS3P0 being the latest i could find
My phone came with V.6.0.1. Cyanogen OS v. 13.1-ZNH2KAS1KN.

why not custom roms ? like lineage os , resurreciton remix etc.

The best way to upgrade is via a custom rom.
Follow this: https://forum.xda-developers.com/showthread.php?t=2788632

13.1.2-ZNH2KAS3P0 indeed the latest official version. If you want to get further updates, only customized ROMs can help you with that.

That was what I was trying to do was install custom ROMs, both new and old failed with TWRP error 7...so i figured there was an update i needed before i could install them. I installed 13.1.2-ZNH2KAS3P0. Still no go...

I already had followed that threads instructions but all ROMs failed. TWRP error 7.

I was finally able to install a ROM. Lineage-14.1-20170814-nightly-bacon-signed https://download.lineageos.org/bacon I am still confused as to why this one worked and the others didn't though... now I am too paranoid to flash any other ROMs until I figure this out .
Any explanation or advice would be greatly appreciated I Hate not understanding how I did something lol. Thanks for all your help!

once you follow the Lineage Os guide your unlocked and good to go. I usually sideload the install using TWRp..

Can we update CM Firmware without reinstalling OS

Hello,
Can we update CM Firmware without reinstalling OS?
I have recently install Nitrogen OS with the given firmware. But I have noticed there is a new firmware released with some bug fixes
Can I install the latest firmware without reinstalling the OS??

Jseven123 said:
Hello,
Can we update CM Firmware without reinstalling OS?
I have recently install Nitrogen OS with the given firmware. But I have noticed there is a new firmware released with some bug fixes
Can I install the latest firmware without reinstalling the OS??
Click to expand...
Click to collapse
If you want to switch to a completely different ROM, you will have to do the wipes in recovery then flash the new ROM. If you want to flash an update of the same ROM you have then you don't need the wipes, you can just flash the update without wiping, this is called "dirty flashing". Dirty flash usually only works when flashing an update of the same ROM that you have.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Hello ,
I am talking about the cm14.1 latest firmware and not about the custom room updates. Is it possible to install without any issues
Thanks in advance

Jseven123 said:
Hello ,
I am talking about the cm14.1 latest firmware and not about the custom room updates. Is it possible to install without any issues
Thanks in advance
Click to expand...
Click to collapse
What do you mean the latest CM14.1 update?
NitrogenOS and CM 14.1 ARE BOTH custom ROMs, they are NOT firmwares. Some devices were manufactured and sold with CyanogenMod as the stock firmware but CM is still predominately a custom android operating system.
And, as I said, if the update is an update to the exact same ROM as what is already installed, then all you have to do is flash it without doing any kind of wipes(this can even be done when updating stock via OTA, it's actually recommended to not do the wipes when updating stock via OTA). For example, if you have CM13 and want to update to CM14, or if you have CM14 and want to update to CM14.1 or if you have CM14.1 but want to flash a newer CM14.1 update, understand yet?
BUT!!!!
If you have some other ROM(something other than a version CM) currently installed but want to update to CM instead of what you have then you would have to factory reset, wipe cache and dalvik cache before flashing.
Let's make this simple since you can't seem to make sense of what I'm telling you. Tell me what you currently have installed and what you want to update to.
I DO NOT PROVIDE HELP IN PM, KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Hello,
I am currently using Nitrogen OS for Redmi note 3. I have flashed the firmware and installed the OS according to the procedures. I run nougat(7.1.2) on my Mob
Check this link : https://forum.xda-developers.com/redmi-note-3/how-to/cm14-14-1-aosp-n-firmware-kenzo-kate-t3507789

Jseven123 said:
Hello,
I am currently using Nitrogen OS for Redmi note 3. I have flashed the firmware and installed the OS according to the procedures. I run nougat(7.1.2) on my Mob
Check this link : https://forum.xda-developers.com/redmi-note-3/how-to/cm14-14-1-aosp-n-firmware-kenzo-kate-t3507789
Click to expand...
Click to collapse
You have nitrogen OS installed on your android and if you want to install update of nitrogen OS then no need of wiping.
If you want to change to different rom ( nitrogenOS to CM) then you need to first wiping/factory resetting or clearing dalvik and cache.
So, you are changing your rom then wipe/factory reset first and then flash CM. That what @Droidriven trying to say you.

Again you are confused. ROMs like Nitrogen runs on CM firmware ( or you can call it architecture). It's not the OS again, It regarding firmware. please someone help me on this I dont want my phone to get bootlooped or any other sort of issue. FYI : I don't want CM ROM/OS. I want Nitrogen itself but want to upgrade to the latest firmware. Please check the link i had provide before replying

Jseven123 said:
Again you are confused. ROMs like Nitrogen runs on CM firmware ( or you can call it architecture). It's not the OS again, It regarding firmware. please someone help me on this I dont want my phone to get bootlooped or any other sort of issue. FYI : I don't want CM ROM/OS. I want Nitrogen itself but want to upgrade to the latest firmware. Please check the link i had provide before replying
Click to expand...
Click to collapse
This is making sense now. You see, you are the one confused. You aren't asking the right question because you don't understand the difference.
You aren't looking for the "CM firmware", this does not even exist. This implies that the firmware was created by CM. It wasn't made by CM, it does not contain CM in it so it can't be called "CM FIRMWARE", it's a STOCK FIRMWARE that is COMPATIBLE with USING CM and other custom ROMs.
What you are looking for is the "stock firmware" that needs to be on your device BEFORE using CM13/14/14.1/AOSP Nougat ROMs.
The thread that you linked basically explains that if you want to use any kind of custom 7.0/7.1/7.1.1 Nougat ROMS then you need to flash this updated STOCK FIRMWARE in order for the device to be able to use those custom ROMs. It is not "CM FIRMWARE"
You're looking for the STOCK FIRMWARE that is compatible with CM and other nougat ROMs.
The thread that you linked explains what you need to know and how to do it, it says that you flash the updated firmware via TWRP and factory reset, wipe cache and dalvik when you flash it.
If you are looking for a newer update than the one in that thread then you'll have to find it in a TWRP flashable .zip. If there is not a TWRP flashable zip to apply the new update then the only way to flash the new update is to flash it via PC then root the device again, install TWRP again and then flash your NitrogenOS ROM again.
DO NOT CONTACT ME VIA PM TO RECEIVE HELP, YOU WILL BE IGNORED. KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

thank for the prompt response! so can i flash the latest firmware with the OS installed?

Jseven123 said:
thank for the prompt response! so can i flash the latest firmware with the OS installed?
Click to expand...
Click to collapse
I just explained what you needed to do, did you read it? It is simple, are you even reading the thread that you linked? What you are asking is irrelevant, just do what it says to do in the steps below.
1) Boot to TWRP
2) Flash the updated firmware via TWRP
3) Factory reset, wipe cache and dalvik
4) Flash NitrogenOS
5)reboot, enjoy.
DO NOT CONTACT ME VIA PM TO RECEIVE HELP, YOU WILL BE IGNORED. KEEP IT IN THE THREADS WHERE EVERYONE CAN SHARE

Need help fixing an Honor 8. Stuck on EMUI 4.0 after failing with custom ROMs

Hello! So I tried flashing a custom ROM to my friends Honor 8 after reading around a bit and such but it ultimately failed and now we're trying to get it back to the default ROM. We found a ROM download but it was for the version FRD-l09C900B120 which was running EMUI4.0 and Android 6.0. I also read that the "C" version he has doesn't receive any further updates, I'm failing to find anything on the correct "C" version anywhere. If anyone could guide me through the installation process for the correct and latest firmware it would be great!
On another note, the build in eRecovery doesn't seem to want to install the update package. It always fails pretty early on after connecting to WiFi, any fix for that would be great. Thanks!
Thanks for any help!

On which ROM was the custom ROM based? You should try to flash the rollback package with dload method and then flash B120 or another EMUI 4.X ROM with same method

Rayan19997 said:
On which ROM was the custom ROM based? You should try to flash the rollback package with dload method and then flash B120 or another EMUI 4.X ROM with same method
Click to expand...
Click to collapse
The custom ROM was Linageos 14.1, so it wasn't anything EMUI based.
I'm gonna try and manually flash the ROM from an update.app that we downloaded from the app Firmware Finder.

ZelafAry said:
Hello! So I tried flashing a custom ROM to my friends Honor 8 after reading around a bit and such but it ultimately failed and now we're trying to get it back to the default ROM. We found a ROM download but it was for the version FRD-l09C900B120 which was running EMUI4.0 and Android 6.0. I also read that the "C" version he has doesn't receive any further updates, I'm failing to find anything on the correct "C" version anywhere. If anyone could guide me through the installation process for the correct and latest firmware it would be great!
On another note, the build in eRecovery doesn't seem to want to install the update package. It always fails pretty early on after connecting to WiFi, any fix for that would be great. Thanks!
Thanks for any help!
Click to expand...
Click to collapse
You did not make any twrp backup??
You are on twrp recovery right now??
Which firmware number you were on before going to custom??

hassanjavaid8181 said:
You did not make any twrp backup??
You are on twrp recovery right now??
Which firmware number you were on before going to custom??
Click to expand...
Click to collapse
We did not make a twrp backup (In hindsight we should've....)
We don't have twrp on it right not but can be fixed if needed.
We were on the latest update available to the phone which should be latest today as well. (OTA)

Flashing it manually made the phone enter a bootloop. It didn't even start the firmware. Any suggestions?
EDIT: We got into Fastboot. What are our options?

Right now your best option in my opinion is to flash Boot.img, recovery.img,cust.img and system.img that you will extract from the UPDATE.APP of your CURRENT Rom. Then just try the dload method again and again, it may not accept the firmware you try to flash but in this case just try another, but not a lower one because you need the rollback package to do that

Rayan19997 said:
Right now your best option is to pray for USB debugging to be enabled and then unlock the bootloader if you didn't do it earlier. After that you should try to flash TWRP
Click to expand...
Click to collapse
What should we do after we've flashed TWRP? When I tried flashing LineageOS 14 it decided to fail the installation somehow and be at an endless boot animation. So I'd like to get the phone restored to EMUI5.0.

Sorry, what I said was garbage, I just edited my comment, you're so quick lol

Rayan19997 said:
Sorry, what I said was garbage, I just edited my comment, you're so quick lol
Click to expand...
Click to collapse
Well currently there's a broken firmware on it of FRD-L09C432B943... Or something like that.
I think at this point he's looking at getting a new phone all together.

No matter if the firmware inside isn't working properly, with fastboot you can manually flash each partition that is needed as long as USB debugging is enabled and bootloader unlocked. After flashing these cleans parts you can properly use the dload method , and if you get an error using dload method can you tell me which one is it? At least the device behavior.
I have to sleep, I'll be right back on the morning hope you'll make it this night , if don't , please be more specific and accurate when you describe the errors you faced, that way we will be more efficient when answering
Sorry for language mistakes, English isn't my native language :silly:

Rayan19997 said:
No matter if the firmware inside isn't working properly, with fastboot you can manually flash each partition that is needed as long as USB debugging is enabled and bootloader unlocked. After flashing these cleans parts you can properly use the dload method , and if you get an error using dload method can you tell me which one is it? At least the device behavior.
I have to sleep, I'll be right back on the morning hope you'll make it this night , if don't , please be more specific and accurate when you describe the errors you faced, that way we will be more efficient when answering
Sorry for language mistakes, English isn't my native language :silly:
Click to expand...
Click to collapse
Currently there's no working OS on it so I'm gonna see if I can find a firmware that I can flash. Do you have any idea where I can get one?

Yeah on honor official site: Hihonor
Or with firmware finder

ZelafAry said:
Currently there's no working OS on it so I'm gonna see if I can find a firmware that I can flash. Do you have any idea where I can get one?
Click to expand...
Click to collapse
If you need a full firmware then you should visit official honor site..

If you flash LineageOS on a phone without OS it won't work just because LineageOS patch the current installed System, if there is no system there is no way it will boot

hassanjavaid8181 said:
If you need a full firmware then you should visit official honor site..
Click to expand...
Click to collapse
I can't find any Honor 8 FRD-L09 downloads anywhere on the Huawei sites or Honor sites. They must've removed the downloads just like they did with the Honor 7..
Rayan19997 said:
If you flash LineageOS on a phone without OS it won't work just because LineageOS patch the current installed System, if there is no system there is no way it will boot
Click to expand...
Click to collapse
I get that now and I know how to proceed in the future.
On another note, I got a good UPDATE.APP available but it refuses to install using the dload method because the versions are different. Does anyone know which partition the USERDATA.img file goes to?

You don't have to flash each single partition but dude in my opinion it's better to flash the whole UPDATE.APP, just use the rollback package and flash a lower EMUI.
Another thing: I'm currently on honor official site and I can download firmwares, you're searching in the wrong place.
www.hihonor.com/fr/support/search-result/index.html?keywords=honor 8

Rayan19997 said:
You don't have to flash each single partition but dude in my opinion it's better to flash the whole UPDATE.APP, just use the rollback package and flash a lower EMUI.
Another thing: I'm currently on honor official site and I can download firmwares, you're searching in the wrong place.
www.hihonor.com/fr/support/search-result/index.html?keywords=honor 8
Click to expand...
Click to collapse
Thank you for that link, I downloaded it and flashed it, I couldn't find it on any other hihonor site but this French one had it.
Again, thank you, it worked flawlessly installing and it updated instantly. You saved me from a lot of worrying and anxiety about breaking my friends phone lol.

I'm really glad to read that dude

thanks for the firmware been looking for it for very long!
btw you just saved another honor 8

Updating OnePlus 6 firmware?

I wonder if there's a way of upgrading the OnePlus 6 without flashing OOS? On the 5T there were firmware zip files that did the trick.
If not, is it possible to flash OOS in TWRP and immediately flash a custom ROM again without wiping any data?

Wow, this has to be the laziest post/person yet.
https://forum.xda-developers.com/oneplus-6/how-to/official-oxygenos-5-1-5-ota-oneplus-6-t3794232
That is a sticky in the news and discussion thread that explains EVERYTHING on this exact topic. You don't even to do a search but just look before posting.

Eric214 said:
Wow, this has to be the laziest post/person yet.
https://forum.xda-developers.com/oneplus-6/how-to/official-oxygenos-5-1-5-ota-oneplus-6-t3794232
That is a sticky in the news and discussion thread that explains EVERYTHING on this exact topic. You don't even to do a search but just look before posting.
Click to expand...
Click to collapse
I couldn't find any firmware ZIP only fastboot methods. I just wanted to know if someone extracted it already?

Macusercom said:
I couldn't find any firmware ZIP only fastboot methods. I just wanted to know if someone extracted it already?
Click to expand...
Click to collapse
Actually most don't understand what you are asking, they are assuming the full install is what you're wanting. Not understanding that the firmware can be installed without the os.
Seems to be only used and reference on samsung devices anymore. everyone else calls full install firmware

nujackk said:
Actually most don't understand what you are asking, they are assuming the full install is what you're wanting. Not understanding that the firmware can be installed without the os.
Seems to be only used and reference on samsung devices anymore. everyone else calls full install firmware
Click to expand...
Click to collapse
Without wanting to start a fight with how we call things I use ROM or software for the OS and firmware for the bootloader, baseband and other stuff that runs on the underlying hardware. That'd explain why I didn't understand the answer.
However, there appears to be no firmware zip without full OOS or at least only fastboot flash methods. But dirty flashing OOS and a custom ROM afterwards does work so the firmware will be updated and OOS overwritten

Macusercom said:
Without wanting to start a fight with how we call things I use ROM or software for the OS and firmware for the bootloader, baseband and other stuff that runs on the underlying hardware. That'd explain why I didn't understand the answer.
However, there appears to be no firmware zip without full OOS or at least only fastboot flash methods. But dirty flashing OOS and a custom ROM afterwards does work so the firmware will be updated and OOS overwritten
Click to expand...
Click to collapse
Thats exactly what i meant you won't find those separated out here. (by here i mean for oneplus6 ) everyone takes firmware to mean the full install.
I was hoping someone would get the modem for the t-mobile 6t but looks like i will have to make a clumsy attempt on my own when I have more time.