G950U1 Oreo to Nougat Possible? - Samsung Galaxy S8 Questions and Answers

Is it possible to flash back to Nougat from the Oreo beta on the US S8?. I've tried searching but I could only find information on the international version.

Follow the SMG950U instructions. Basically getting BLQ1 nougat flashed on the phone and then getting the update.zip for CRB8 and applying that in the Vol UP+Bixby+PWR boot.

qwww456 said:
Is it possible to flash back to Nougat from the Oreo beta on the US S8?. I've tried searching but I could only find information on the international version.
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Connect to pc with smart switch and it will give a downgrade option. At least it does for mine...

Related

NXTL-AL10 Firmware upgrade

Hello, ive been surfing this forum for a while, it helped me to change the firmware of my NXT-AL10 to the international versión, using Fastboot but the versión i was able to install is very old, (NXT-C900B133), it has a few bugs, but at least i got rid of the chinesee software.
Now im trying to update to the new Emui 4.1 the B320 firmware or the newest available, but i allready tried to updated using the dload method, but didnt work, i tried at least 3 diferent firmware version, the only version that i havent tried is the NXT-AL10 – NXT-AL10C00B350 because i believe that it will install again the chinesee version.
Can anyone point me on how to update my NXT-AL10 to the newest international version available without bricking my phone?
i apreciate!
It's supposed to be as easy as flashing the B321 firmware via twrp, just as you would flash any ROM regardless of which variant of the phone you've got. I'm not sure what you're doing wrong here.
justiceanthony said:
It's supposed to be as easy as flashing the B321 firmware via twrp, just as you would flash any ROM regardless of which variant of the phone you've got. I'm not sure what you're doing wrong here.
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Thanks, the truth is that i have technically zero experience with this, it was actually a miracle how i flashed it, i use this thread to find my way to do this: http://forum.xda-developers.com/mate-8/general/howto-load-international-mate-8-t3293619 but i have no idea on how to use twrp.
On the guide that i followed, it was very detailed, it had the download links, and i even had to pay 4 Euro to get my phone bootloader unlocked, but the guide was very explicit.
Now that the booloader is unlocked, and i have a flashed rom, what would be the method, is there a guide like the first one, but with the latest firmware?

From Emui 5.0 to Lineage OS 13?

Hi guys. I've a Huawei Nova L01 with CAN-L01C02B331 and CUSTC02D002 firmware. I want to try the lineageos build published by grarak on his twitter account but some weeks ago i risked to brick the phone (i was already on nougat). Anyone know a safe and effective guide for that? Thanks to those who will help me
pasmadferit said:
Hi guys. I've a Huawei Nova L01 with CAN-L01C02B331 and CUSTC02D002 firmware. I want to try the lineageos build published by grarak on his twitter account but some weeks ago i risked to brick the phone (i was already on nougat). Anyone know a safe and effective guide for that? Thanks to those who will help me
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Don't know what to say, I have Android nougat and tried to flash lineage by Grarak but I'm stuck at patching system image unconditionally....
It gaves me the same problem..
pasmadferit said:
It gaves me the same problem..
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You can talk with Grarak on Twitter and ask him how to solve this issue and if it's possible to go back on marshmallow from emui5
already done so, zero response
Asked huawei for rollback link
Same problem here, so I emailed huawei for a rollback link. I'm on NRD90M so normally should be able to revert to original MM... No response so far...
Fierens said:
Same problem here, so I emailed huawei for a rollback link. I'm on NRD90M so normally should be able to revert to original MM... No response so far...
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And how can we go back to mm, is there a tool to do it? I have tried to flash mm but I'm not able because system and cust partition are bigger on stock mm firmwares, so once installed nougat we are not able to go back on mm. Basically they have to release a tool witch will automatically repartition system and cut partitions or release a mm firmware with smaller partitions....Oh sorry they didn't respond, I'm curious about they're response, if they will ever replay to you e-mail.
mArIuS% said:
And how can we go back to mm, is there a tool to do it? I have tried to flash mm but I'm not able because system and cust partition are bigger on stock mm firmwares, so once installed nougat we are not able to go back on mm. Basically they have to release a tool witch will automatically repartition system and cut partitions or release a mm firmware with smaller partitions....Oh sorry they didn't respond, I'm curious about they're response, if they will ever replay to you e-mail.
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Well, thats whats the NRD90M build is made for, so you would be able to return to MM Its a build that should give the opportunity to have a rollback... However, what I have learned is that you need a specific updatefile to do this... This updatefile, does not exist (?)

Recommend which Nougat ROM to flash please. (G930A vs G930U)

Hello guys.
I have waited for an official OTA nougat update for too long and now want to flash Nougat myself. I searched online and found multiple options. Could you recommend which Nougat to flash? I'm split between AT&T official and Unlocked (U) versions.
Currently I'm on MM G930AUCU4APJ4.
Thanks.
There is no Nougat yet for the G930U or G935U.
jlink38 said:
There is no Nougat yet for the G930U or G935U.
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Oh okay. Then which AT&T ROM would you recommend?

Downgrade

How to downgrade S7 Edge From Oreo to Noughat???
Azazlimbu said:
How to downgrade S7 Edge From Oreo to Noughat???
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Download Nougat or Marsh from sammobile and flash t with Odin, more instructions on sammobile.
downgrade only possible with V2 firmware files, don't flash any firmware build before the january 2018 or you will brick your device .
shah22 said:
downgrade only possible with V2 firmware files, don't flash any firmware build before the january 2018 or you will brick your device .
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I am new here i dont know what is V2 firmwarefile. Can you explain what is V2 firmware?? Thanks you for advise:fingers-crossed::fingers-crossed::fingers-crossed:
I mean the bootloader version that is written in the firmware name i.e in G935FXXU2DRAG, 2 is the bootloader version of the firmware after U letter and if you are already on version 2 bootloader, you cannot flash a firmware which has 1 in place of 2..
shah22 said:
I mean the bootloader version that is written in the firmware name i.e in G935FXXU2DRAG, 2 is the bootloader version of the firmware after U letter and if you are already on version 2 bootloader, you cannot flash a firmware which has 1 in place of 2..
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Ok Thanks you bro!!!!:fingers-crossed::good:
This is useful! I tried to downgrade from 8.0 to 7.0 and bricked my device, luckily I could restore the same version I had before... even SmartSwitch don't give a damn about my device anymore.
If you have bootloader version which says XXS2 then you can't downgrade to Marshmallow and initial Nougat firmwares released till December 2017.
However, if you never upgraded your bootloader to v2 (like me), then you can downgrade to even Marshmallow without any issues. Check my phone screenshot. I am running latest Oreo firmware on v1 bootloader without any issues.
AlanDS said:
I am running latest Oreo firmware on v1 bootloader without any issues.
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How you flash latest Oreo without flasing V2 bootloader? It is possible?

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.
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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 don´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.
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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
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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.
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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
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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<>.
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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
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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.

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