Cant Downgrade to December 2017 Nougat Update - Samsung Galaxy A8+ (2018) Questions & Answers

I tried to unlock my OEM BOOTLOADER UNLOCK option by waiting 168 hours withour rebooting my phone and still didn't get that option. I read somewhere to downgrade back to DECEMBER 7.1 NOUGAT release and then wait for 168 hours for OEM UNLOCK option to be available. When I tried downgrading, I got this option. Does anyone have any proper idea or solution for this fix?

noob_coder said:
I tried to unlock my OEM BOOTLOADER UNLOCK option by waiting 168 hours withour rebooting my phone and still didn't get that option. I read somewhere to downgrade back to DECEMBER 7.1 NOUGAT release and then wait for 168 hours for OEM UNLOCK option to be available. When I tried downgrading, I got this option. Does anyone have any proper idea or solution for this fix?
Click to expand...
Click to collapse
You're trying to flash a rev 1 firmware while you have a rev 2 bootloader installed in your phone (XXU1 vs. XXU2). You can't downgrade from rev 2 to rev 1 bootloader, all you can do is flash a 7.1.1 firmware that has rev 2 bootloader inside

BlackMesa123 said:
You're trying to flash a rev 1 firmware while you have a rev 2 bootloader installed in your phone (XXU1 vs. XXU2). You can't downgrade from rev 2 to rev 1 bootloader, all you can do is flash a 7.1.1 firmware that has rev 2 bootloader inside
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Click to collapse
Thanks alot but no thanks, your response is dead late and secondly I don't give a Da*n F**cK anymore. I sold the phone because the whole point of doing all that was to ROOT and UNLOCK my BL which never happened. The OEM UNLOCK button never appeared for me after keeping my device for 40 days.
Now I am all SONY and they respect the BL UNLOCKING and easily allow it.
Peace

Related

Can't find oem unlock option on mate S under Marshmallow :( L09 , want 6.0 to 5.1.1

Hello , I have c09 version under 6.0 marshmallow , i want unlock bootloader for i can downgrade to 5.1.1 android , but i can't find this option on developper options,
PLEEEEEEEEEEEEEEEEEEEASE help me
I have do FRP ERASE with dc unlocker and get bootloader unlocked code
But no way to unlock bootloader without oem unlock option enabled
Help me please
mazighi said:
Hello , I have c09 version under 6.0 marshmallow , i want unlock bootloader for i can downgrade to 5.1.1 android , but i can't find this option on developper options,
PLEEEEEEEEEEEEEEEEEEEASE help me
I have do FRP ERASE with dc unlocker and get bootloader unlocked code
But no way to unlock bootloader without oem unlock option enabled
Help me please
Click to expand...
Click to collapse
for all the Mate S Owners who updated to Android 6.0 with an pushed OTA Update. There is currently no way to downgrade to 5.1.1.
If you upgrade without an unlocked bootloader, your device will be FRP locked. The not visible OEM-Unlock option is some kind of bug. without it you´re not able to unlock the bootloader and rollback.
It´s also not possible to force update with the 5.1.1 Update.app. It will cancel after 5% and abort the update. If not, your device will most probably get bricked because of an update error.
You have to wait for a new update or an official rollback file from huawei
and please stop spamming this forum. No one will help you if you keep going on.
Tuerkay said:
for all the Mate S Owners who updated to Android 6.0 with an pushed OTA Update. There is currently no way to downgrade to 5.1.1.
If you upgrade without an unlocked bootloader, your device will be FRP locked. The not visible OEM-Unlock option is some kind of bug. without it you´re not able to unlock the bootloader and rollback.
It´s also not possible to force update with the 5.1.1 Update.app. It will cancel after 5% and abort the update. If not, your device will most probably get bricked because of an update error.
You have to wait for a new update or an official rollback file from huawei
and please stop spamming this forum. No one will help you if you keep going on.
Click to expand...
Click to collapse
Thank's for answer, i'm not spamming forum, you clear me everything
thank's
mazighi said:
Hello , I have c09 version under 6.0 marshmallow , i want unlock bootloader for i can downgrade to 5.1.1 android , but i can't find this option on developper options,
PLEEEEEEEEEEEEEEEEEEEASE help me
I have do FRP ERASE with dc unlocker and get bootloader unlocked code
But no way to unlock bootloader without oem unlock option enabled
Help me please
Click to expand...
Click to collapse
As far as I know.. There isn't currebtly a way back to 5.1.1...I've tried a TWRP backup and that also failed
brumgav said:
As far as I know.. There isn't currebtly a way back to 5.1.1...I've tried a TWRP backup and that also failed
Click to expand...
Click to collapse
thank's
Tuerkay said:
for all the Mate S Owners who updated to Android 6.0 with an pushed OTA Update. There is currently no way to downgrade to 5.1.1.
If you upgrade without an unlocked bootloader, your device will be FRP locked. The not visible OEM-Unlock option is some kind of bug. without it you´re not able to unlock the bootloader and rollback.
It´s also not possible to force update with the 5.1.1 Update.app. It will cancel after 5% and abort the update. If not, your device will most probably get bricked because of an update error.
You have to wait for a new update or an official rollback file from huawei
and please stop spamming this forum. No one will help you if you keep going on.
Click to expand...
Click to collapse
Hi, translate and try that out . perhaps helps it continue .
android-hilfe.de/thema/howto-root-huawei-mate-s-android-6-beta-b303-marshmallow-freie-geraete.754058/#post-9590532
Ron
try to translate , nothing new
I have unlock code but can't do it using abd
You can go back you need the fw lollypop and Huaweiupdate extractor..........extractor Boot.img cust.img recovery1.img recovery2.img and the System.img.........Run cmd and Flash the Files
---------- Post added at 08:01 PM ---------- Previous post was at 08:00 PM ----------
And make a Factory reset at least

[Solved] Any way to unlock FRP after OTA update? (P10 Lite)

Hello!
I recently rooted my new P10 Lite before version B124 was released, but then I decided to update my phone from B102 to B124 by flashing the recovery image from the Update file and then updating via OTA with the full update files.. The phone updated successfully but yesterday I used adb to boot into the bootloader in order to flash TWRP but noticed that FRP is now locked and i cannot flash TWRP without getting command not allowed error.
I also tried unlocking the bootloader (just in case it was locked for some reason) using the password i got from huawei but even that gives me an error. The enable OEM option in developer settings is greyed out since after the update and is till greyed out even after clearing cache and factory resetting the device. Now is there a way for me to unlock FRP again in order to flash TWRP? Or maybe another way to flash TWRP. Hopefully someone knows a way.
Use DC Unlocker.
I used it to unlock my bootloader on P9. Works perfectly.
They do FRP unlock and supports P10 Lite.
Costs 15 credits so 15 Euro.
dadvs1 said:
Use DC Unlocker.
I used it to unlock my bootloader on P9. Works perfectly.
They do FRP unlock and supports P10 Lite.
Costs 15 credits so 15 Euro.
Click to expand...
Click to collapse
Will do, thanks for the help!
Check that video bro...
https://youtu.be/h_uQqAHKJBg
Jonny93 said:
Will do, thanks for the help!
Click to expand...
Click to collapse
Wasted 15 credits on that and it didnt help me flash twrp like i thought it would
osa993ma said:
Check that video bro...
https://youtu.be/h_uQqAHKJBg
Click to expand...
Click to collapse
Thanks bro. Wish i saw it before spending 15 credits in DC unlocker. Even after removing frp i am still not able to tick enable OEM unlock in developer settimgs or flash twrp in fastboot. Only thing on my mind right now is to lock bootloader and see if enable oem unlock option will be available after that.

will we ever get a Nokia 8 custom ROM?

The official bootloader unlock method has been out for a while. Its almost 2 years since the phone has been released. I was hoping by now maybe some developer would have picked this phone up and put it to use. Is there a reason why nobody has bothered to start development on this phone and build a custom ROM? I think this phone has great potential given its specs and price. It would be nice to so further customizations beyond those allowed by rooting the phone.
I could do it too if I had any amount of knowledge about Android development, but sadly im a noobie.
What are your thoights?
It's not possible I guess. And Nokia has locked down. Unlocking bootloader. I have Nokia official app and it says Device not support.
arun45 said:
It's not possible I guess. And Nokia has locked down. Unlocking bootloader. I have Nokia official app and it says Device not support.
Click to expand...
Click to collapse
No, Nokia hasnt locked it down. The bootloader unlock method only works up to the November Oreo security update. Just downgrade to Oreo November security update then unlock the bootloader, and then upgrade back to Pie.
See this thread for instructions https://forum.xda-developers.com/nokia-8/development/unofficial-official-nokia-8-bootloader-t3898418
Thanks bro. I have downgraded to Oreo. I got key. Now I can't unlock bootloader just bcos of fastboot driver problem in my pc. Shall I update to pie ? And unlock bootloader in pie.,.
Pls guide
arun45 said:
Thanks bro. I have downgraded to Oreo. I got key. Now I can't unlock bootloader just bcos of fastboot driver problem in my pc. Shall I update to pie ? And unlock bootloader in pie.,.
Pls guide
Click to expand...
Click to collapse
I would suggest using another pc and unlock the bootloader.

Does bootloader CODE stay the same even after a stock update ?

in 2018 I unlocked my bootloader,
yesterday I updated my rom with a Stock version (EMUI5.0.3),
stupid me I didn't wrote down the bootloader CODE from 2018
so I had to pay 4€ to DC unlocker, it worked. :angel:
now I want to go EMUI 8
but I need to know if I will be able to unlock the bootloader with the same CODE I got with EMUI 5 ?
(i want to use lineageOS, but apparently I need to upgrade to EMUI 8 first for some reason...)
no,it stays the same,ive flashed maybe 100 times and 100 times ive flashed/updated/rescued my phone and my bootloader code is still the same.But i never had to unlock my bootloader again.
-CALIBAN666- said:
no,it stays the same,ive flashed maybe 100 times and 100 times ive flashed/updated/rescued my phone and my bootloader code is still the same.But i never had to unlock my bootloader again.
Click to expand...
Click to collapse
you said you did it 100 time, and the code stayed the same
but then you said you never had to unlock again
I don't get it. did you do it only one time or many time with different EMUI ?
kindredkaiser said:
in 2018 I unlocked my bootloader,
yesterday I updated my rom with a Stock version (EMUI5.0.3),
stupid me I didn't wrote down the bootloader CODE from 2018
so I had to pay 4€ to DC unlocker, it worked. :angel:
now I want to go EMUI 8
but I need to know if I will be able to unlock the bootloader with the same CODE I got with EMUI 5 ?
(i want to use lineageOS, but apparently I need to upgrade to EMUI 8 first for some reason...)
Click to expand...
Click to collapse
You can use the same code. I once updated my phone from EMUI5 to EMUI8 and I have also relocked the bootloader with the dload method many times but I have always used the same code to get the bootloader unlocked again.
kindredkaiser said:
you said you did it 100 time, and the code stayed the same
but then you said you never had to unlock again
I don't get it. did you do it only one time or many time with different EMUI ?
Click to expand...
Click to collapse
I unlocked one time,its stays unlocked all the time.
DeathBell said:
You can use the same code. I once updated my phone from EMUI5 to EMUI8 and I have also relocked the bootloader with the dload method many times but I have always used the same code to get the bootloader unlocked again.
Click to expand...
Click to collapse
dude can you tell me where you get your update.app from for the dload method?
potyqa said:
dude can you tell me where you get your update.app from for the dload method?
Click to expand...
Click to collapse
Follow instructions here, you'll find the tool also. https://forum.xda-developers.com/showthread.php?t=2433454

Stuck on MIUI Recovery

Hello Guys,
Need assistance/guide,
I have a official chinese ROM and already unlock bootloader.
I have problem now with my phone.
I have accidental click clean all and lock when using miflashh tool when flashing official GLobal ROM V10.3.3 from chinese ROM with unlock boothloader.
Boot stuck on MIUI recovery.
Tried to unlock bootloader again but unfortunately it said to wait 30 days again.
Any ideas what to do?
exequil85 said:
Hello Guys,
Need assistance/guide,
I have a official chinese ROM and already unlock bootloader.
I have problem now with my phone.
I have accidental click clean all and lock when using miflashh tool when flashing official GLobal ROM V10.3.3 from chinese ROM with unlock boothloader.
Boot stuck on MIUI recovery.
Tried to unlock bootloader again but unfortunately it said to wait 30 days again.
Any ideas what to do?
Click to expand...
Click to collapse
Wait 30 days?
DaveHTC200 said:
Wait 30 days?
Click to expand...
Click to collapse
Yes that is correct.
Thats why i have to wait...
DaveHTC200 said:
Wait 30 days?
Click to expand...
Click to collapse
I'v managed to unlock my device.
My device already working.
I think you can only unlock 1 device at a time(in a month) in a single account!
exequil85 said:
I'v managed to unlock my device.
My device already working.
I think you can only unlock 1 device at a time(in a month) in a single account!
Click to expand...
Click to collapse
Hey! Did you actually wait 30 days to unlock. I have the same issue like you.
dangkhoa116 said:
Hey! Did you actually wait 30 days to unlock. I have the same issue like you.
Click to expand...
Click to collapse
Nope. 3 days only..
July 29(monday) ive bricked my phone. Try to apply unlock but prompts me to wait 30 days.
August 1 ( thursday) i tried again to unlock bootloader...? It was successful.
Im not quite sure if im correct but 1 account for 1 device per month in unlocking bootloader.
exequil85 said:
Nope. 3 days only..
July 29(monday) ive bricked my phone. Try to apply unlock but prompts me to wait 30 days.
August 1 ( thursday) i tried again to unlock bootloader...? It was successful.
Im not quite sure if im correct but 1 account for 1 device per month in unlocking bootloader.
Click to expand...
Click to collapse
Thank you. I'll wait several days and try it:good:

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