Hello im new withe the phone and i dont know the secrets of the software, i want to test it with nougat and i try downloading the firmware from sammobile and install it with lastest odin, but its failed and gives me rew check bootloader and binary 2 device 4 somthing like that , how can do the roll back . im using Bulgarian SM-G950F
cropp7 said:
Hello im new withe the phone and i dont know the secrets of the software, i want to test it with nougat and i try downloading the firmware from sammobile and install it with lastest odin, but its failed and gives me rew check bootloader and binary 2 device 4 somthing like that , how can do the roll back . im using Bulgarian SM-G950F
Click to expand...
Click to collapse
Unfortunately if your on Oreo you won't be able to downgrade to nougat. Depending on the bootloader version number you can not even downgrade to an early version of Oreo either.
Bootloader version number is the 5th number from the right of the file name that you downloaded from sammobile. Binary 2 device 4 is telling you that your current bootloader version is 4 and you are trying to flash a version with bootloader ver 2.
Eg: G950FXXU4CRKG is a name of a file that you would download from sammobile. The number 4 ( 5th from right ) is the bootloader version number. So you can only flash with a BL 4 or higher and not lower ( ie: 3,2 or 1 )
spawnlives said:
Unfortunately if your on Oreo you won't be able to downgrade to nougat. Depending on the bootloader version number you can not even downgrade to an early version of Oreo either.
Bootloader version number is the 5th number from the right of the file name that you downloaded from sammobile. Binary 2 device 4 is telling you that your current bootloader version is 4 and you are trying to flash a version with bootloader ver 2.
Eg: G950FXXU4CRKG is a name of a file that you would download from sammobile. The number 4 ( 5th from right ) is the bootloader version number. So you can only flash with a BL 4 or higher and not lower ( ie: 3,2 or 1 )
Click to expand...
Click to collapse
Thanks for the guide i understand you. And is't there a way to donwgrade the bootloader
cropp7 said:
Thanks for the guide i understand you. And is't there a way to donwgrade the bootloader
Click to expand...
Click to collapse
As far as I know there is no way to downgrade bootloader versions
spawnlives said:
As far as I know there is no way to downgrade bootloader versions
Click to expand...
Click to collapse
Okey, thanks for ur help
Related
Hello, I have Mate 8 64gb with model number HUAWEI NXT-L29 that i have bought in Boreno/Malaysia.
Have EMUI 4.0 and software number NXT-L29C636B170.
Why do i don´t get an OTA-update with nougat?
How can i update it to Nougat the easiest way without rooting ??
Thanks/ Simon
Keep checking and u will get update
bluheart said:
Keep checking and u will get update
Click to expand...
Click to collapse
okey, can it be a problem that i live in sweden and use a Swedish sim card ?
Firmware finder apk
Have EMUI 4.0 and software number NXT-L29C636B170.
Why do i don´t get an OTA-update with nougat?
How can i update it to Nougat the easiest way without rooting ??
Thanks/ Simon[/QUOTE]
Install firmware finder and adjust setting to view last firmware
If it can't find nougat update , you can unlock bootloader and update via twrp method
BR//
h4ni said:
Have EMUI 4.0 and software number NXT-L29C636B170.
Why do i don´t get an OTA-update with nougat?
How can i update it to Nougat the easiest way without rooting ??
Thanks/ Simon
Click to expand...
Click to collapse
Install firmware finder and adjust setting to view last firmware
If it can't find nougat update , you can unlock bootloader and update via twrp method
BR//[/QUOTE]
I found the b563 fw but when i tried to update it it stopped at 1 % and the phone rebooted. What can cause the problem ?
Keep checking! Older firmwares have some small optimization to be done. So these guys r releasing slowly
simonijo said:
Install firmware finder and adjust setting to view last firmware
If it can't find nougat update , you can unlock bootloader and update via twrp method
BR//
Click to expand...
Click to collapse
I found the b563 fw but when i tried to update it it stopped at 1 % and the phone rebooted. What can cause the problem ?[/QUOTE]
Be sure you choosed correct model number and try both full & ota files
h4ni said:
I found the b563 fw but when i tried to update it it stopped at 1 % and the phone rebooted. What can cause the problem ?
Click to expand...
Click to collapse
Be sure you choosed correct model number and try both full & ota files[/QUOTE]
On the firmware finder app, disable OTA, and you'll see that the ones that say FULL/OTA will disappear,
and the only FULL that shows up are the older (EMUI 4x) ones. At least that's what happens on
mine. L29C185B321
I just manage to update to b563 by first flash b211 using the dload method, and then i could update to b563 with firmware finder . Thanks for the help everybody !
How to downgrade S7 Edge From Oreo to Noughat???
Azazlimbu said:
How to downgrade S7 Edge From Oreo to Noughat???
Click to expand...
Click to collapse
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 .
Click to expand...
Click to collapse
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..
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
How you flash latest Oreo without flasing V2 bootloader? It is possible?
Hey ppl,
I'd like to know how can I bypass the FRP lock currently present on my G935F.
I've already installed a Combination ROM (FA60_G935FXXU2ARA1) and now what should I do next? I've already tried to install stock 6.0.1 ROM's to then bypass it but I'm unable to do so... Up to now I was only able to install 7.0 or 8.0 ROM's...
So, what should I do next in order to bypass the FRP Lock?
(Before installing the combination ROM the phone was on an Android 7.0 ROM: G935FXXS2DRC3_G935FPHN2DRB5_PHN showing that google page to enter an email)
Thanks in advance
frb ?????
montafede said:
frb ?????
Click to expand...
Click to collapse
What do you mean by "frb"?
pistolas50 said:
What do you mean by "frb"?
Click to expand...
Click to collapse
HE WROTE
o, what should I do next in order to bypass the FRP Lock?
SI FRP WHATS MEAN
Ok i have a solution for FRP lock at Binary 2 (u2) firmware, all u need is downgrade to latest 7.0 (Binary 2), for example G935FXXS2DRDI. After phone boot up download and flash G935FXXU1BPH6 firmware. At Odin (Odin3_v3.13.1) just set AP and CSC (not Home_CSC) and start, phone should boot up with 6.0.1 firmware after that use this instruction: https://www.youtube.com/watch?v=VJOVbi2RyAA
kamikaze134x said:
Ok i have a solution for FRP lock at Binary 2 (u2) firmware, all u need is downgrade to latest 7.0 (Binary 2), for example G935FXXS2DRDI. After phone boot up download and flash G935FXXU1BPH6 firmware. At Odin (Odin3_v3.13.1) just set AP and CSC (not Home_CSC) and start, phone should boot up with 6.0.1 firmware after that use this instruction: https://www.youtube.com/watch?v=VJOVbi2RyAA
Click to expand...
Click to collapse
Wheere can i find and download samsung firmware
Sammobile site not working
Google Drive and other forum , i download all from Polish side chomikuj.pl so u need to do research at Google
kamikaze134x said:
Google Drive and other forum , i download all from Polish side chomikuj.pl so u need to do research at Google
Click to expand...
Click to collapse
Hello,
I found a site
How do i know which version do i have? E.g in recover it says G935FXXU2EREM
But WHICH one do i have? See image
U need to download latest nougat firmware with U2 or S2 in name G935FXXS2DRDI, in your screenshot all of them are 8.0
kamikaze134x said:
Ok i have a solution for FRP lock at Binary 2 (u2) firmware, all u need is downgrade to latest 7.0 (Binary 2), for example G935FXXS2DRDI. After phone boot up download and flash G935FXXU1BPH6 firmware. At Odin (Odin3_v3.13.1) just set AP and CSC (not Home_CSC) and start, phone should boot up with 6.0.1 firmware after that use this instruction: https://www.youtube.com/watch?v=VJOVbi2RyAA
Click to expand...
Click to collapse
Damn. I just moved to binary 3 after days of failure. Until I saw this. But do you think downgrade is possible from binary 2 to binary 1? From experience Odin will fail. Binary 2 > 1.... I'm on binary 3 right now bro, I have combo file but no OEM unlock in developer option. How to bypass frp?
jazzdglass said:
Damn. I just moved to binary 3 after days of failure. Until I saw this. But do you think downgrade is possible from binary 2 to binary 1? From experience Odin will fail. Binary 2 > 1.... I'm on binary 3 right now bro, I have combo file but no OEM unlock in developer option. How to bypass frp?
Click to expand...
Click to collapse
im like you stucked at factory binary without chanche of flash anything,im on binary 3 coming from supermano oreo 8.0 phe
SANTUMIL said:
im like you stucked at factory binary without chanche of flash anything,im on binary 3 coming from supermano oreo 8.0 phe
Click to expand...
Click to collapse
Have u been able to bypass? I did mine.
jazzdglass said:
Have u been able to bypass? I did mine.
Click to expand...
Click to collapse
Only made it with remote acces to my lap,i dunno why I couldn't,can you explain your steps?Plz
SANTUMIL said:
Only made it with remote acces to my lap,i dunno why I couldn't,can you explain your steps?Plz
Click to expand...
Click to collapse
What did you achieve with remote access? And what's remote access
just bypassed oreo.
just search on youtube "frp samrani sms"
you need 2 phones - 1 blocked and one not, 2 sims and thats pretty much everyrhing
yaro666 said:
just bypassed oreo.
just search on youtube "frp samrani sms"
you need 2 phones - 1 blocked and one not, 2 sims and thats pretty much everyrhing
Click to expand...
Click to collapse
this method don`t work in Binary 4
jazzdglass said:
What did you achieve with remote access? And what's remote access
Click to expand...
Click to collapse
I think he's talking about find my mobile service.
Ordinary person with extraordinary wishes.
pistolas50 said:
Hey ppl,
I'd like to know how can I bypass the FRP lock currently present on my G935F.
I've already installed a Combination ROM (FA60_G935FXXU2ARA1) and now what should I do next? I've already tried to install stock 6.0.1 ROM's to then bypass it but I'm unable to do so... Up to now I was only able to install 7.0 or 8.0 ROM's...
So, what should I do next in order to bypass the FRP Lock?
(Before installing the combination ROM the phone was on an Android 7.0 ROM: G935FXXS2DRC3_G935FPHN2DRB5_PHN showing that google page to enter an email)
Thanks in advance
Click to expand...
Click to collapse
tested solution
http://forum.gsmdevelopers.com/sams...-android-7-0-frp-remove-combination-file.html
Hi everyone
.
i have a S8 G950FD
.
android Pie is ridiculously battery drainer so i want to downgrade to 8
.
but when i try to flash oreo stock rom with odin (OEM Unlocked) it fails and i get sw rv : Device: 8 Binary:4 error in download mode which means i cant downgrade to older bootloader !
.
however once before i had successfully downgraded from 9 to 8 (i don't remember how i solved it)
(iv'e heard since November 2019 update they have blocked bootloader downgrade)
.
any ideas ? if u know a fix help please :fingers-crossed:
.
current build : G950FXXS8DTC1
the build i want to flash: G950FXXS4CRJD
damn u Samsung
King Arc s said:
Hi everyone
.
i have a S8 G950FD
.
android Pie is ridiculously battery drainer so i want to downgrade to 8
.
but when i try to flash oreo stock rom with odin (OEM Unlocked) it fails and i get sw rv : Device: 8 Binary:4 error in download mode which means i cant downgrade to older bootloader !
.
however once before i had successfully downgraded from 9 to 8 (i don't remember how i solved it)
(iv'e heard since November 2019 update they have blocked bootloader downgrade)
.
any ideas ? if u know a fix help please :fingers-crossed:
.
current build : G950FXXS8DTC1
the build i want to flash: G950FXXS4CRJD
damn u Samsung
Click to expand...
Click to collapse
Flash the full Oreo firmware without the BL tab, then you will be downgrading to Oreo but you will still keep the Pie bootloader.
Also if you do want to downgrade the bootloader I found this thread: https://forum.xda-developers.com/galaxy-s8/how-to/guide-skipping-kg-prenormal-oneui-t3911862/amp/
JJcoder said:
Flash the full Oreo firmware without the BL tab, then you will be downgrading to Oreo but you will still keep the Pie bootloader.
Also if you do want to downgrade the bootloader I found this thread: https://forum.xda-developers.com/galaxy-s8/how-to/guide-skipping-kg-prenormal-oneui-t3911862/amp/
Click to expand...
Click to collapse
have u tried this ?
i tried and odin stucked at recovery + in download mode i get kernel REV: DEVICE: 7 BINARY: 3
King Arc s said:
have u tried this ?
i tried and odin stucked at recovery + in download mode i get kernel REV: DEVICE: 7 BINARY: 3
Click to expand...
Click to collapse
No, I have not tried it but I thought it might work. Try downgrading the bootloader via this method https://forum.xda-developers.com/galaxy-s8/how-to/guide-skipping-kg-prenormal-oneui-t3911862
I think you can also get heimdall on Windows
Edit: I found the heimdall download page here: https://glassechidna.com.au/heimdall/
If that doesn't work I also found this thread about downgrading the bootloader with combo firmware: https://forum.xda-developers.com/galaxy-s8/help/method-to-downgrade-galaxy-s8-to-oreo-t3946240/amp/ You just have to find a combo firmware with the same binary version as your current firmware.
Downgrading the bootloader is really hard on Samsung devices if possible at all
King Arc s said:
have u tried this ?
i tried and odin stucked at recovery + in download mode i get kernel REV: DEVICE: 7 BINARY: 3
Click to expand...
Click to collapse
Your device is on a bit 7 bootloader. The firmware you are trying to flash is a revision 3. You cannot downgrade your revision. 5th digit from far right end in firmware is your software revision
hi i have a sm-g955f
with g955fxxs7dta6 base band
can i downgrade from android 9 to android 8?
thanks
geppy33 said:
hi i have a sm-g955f
with g955fxxs7dta6 base band
can i downgrade from android 9 to android 8?
thanks
Click to expand...
Click to collapse
Same as post as above yours check all the Android 8 firmwares if they are the same bit number as Android 9 then yes. If not. No
so in my case I have to find a custom android 8 rom with bit 7?
and if I put a custom rom with a lower rev bit can I downgrade?
having rooted and having twrp?
if it has knox, most likely not
[QUOTE = "avipars, post: 84174127, member: 7551187"]
se ha knox, molto probabilmente no
[/CITAZIONE]
knox is 0x1 therefore no guarantee
geppy33 said:
and if I put a custom rom with a lower rev bit can I downgrade?
having rooted and having twrp?
Click to expand...
Click to collapse
I don't think you can
Hello everyone, I have a P9 Lite which was issued from Vodafone Europe (originally VNS-L21C02B128), and I'd like to update it to Android 7.
Since none of the stock ROMs I tried would pass the verification when updating via the Project Menu, I found and flashed a newer Android 6 which works fine apparently - build number is currently VNS-L21C900B170.
Trouble is all of the newer ROMs are still not working. During the verification phase, it says they are not compatible with the phone.
Any ideas what is the simplest safest way to get to Android 7 ? Thanks for the help.
P9Late said:
Since none of the stock ROMs I tried would pass the verification
Click to expand...
Click to collapse
Have you tried Service ROMs?
https://androidhost.ru/3za
https://androidhost.ru/56i
P9Late said:
originally VNS-L21C02B128), and I'd like to update it to Android 7.
Click to expand...
Click to collapse
- Unlock the bootloader
- on android 6 rebrand to C432 global
- in TWRP install fullOTA-MF-PV VNS-L21C432B370
- then you can upgrade to a higher version by installing a Service ROM via dload method (it will lock your BL again).
The problem is probably with your current build number - the C900 is fake firmware, incomplete or incompatible. I'm afraid you won't be able to unlock the bootloader or rebrand the phone with this build.
Hello Alf, I did try VNS-L21C02B346 but it didn't work, both with the original and the newer ROM. I also tried the "SERVICE Full Repair VNS-L21 C432B381" from here, also with no luck.
The current B170 ROM was labeled as "VNS-L21C432B170" on the site I got it from, but now it shows as C900. This one updated with no problems via the Project Menu upgrade command, the only one to work so far...
I will see later about unlocking the bootloader thanks.
P9Late said:
The current B170 ROM was labeled as "VNS-L21C432B170"
Click to expand...
Click to collapse
You can't install C432 on C02 and vice versa without changing oeminfo, that's why you now have a C900 region and failed verification.
Thanks but I don't know hot to change oeminfo. Can I use SRK Tool ?
Also is there a free way to unlock the bootloader ? Is it this one ?
Does the phone have to be dissasembled, or is there a software method as well ?
Is dc-unlocker free for phones with android 6 and 7 ?