New firmware with older bootloader version? - Samsung Galaxy S7 Guides, News, & Discussion

Hello,
I'm using Samsung Galaxy S7 SM-G930FD.
PDA (AP) version installed: G930FXXU1BPJE
CSC version installed: G930FOXA1BPJE
Android version installed: 6.0.1
My currently installed firmware is obviously old and I would like to make an upgrade.
I searched for the latest firmware versions available for my device and I did found them (on "Sammobile.com", if it matters). Each firmware on that website indeed has a relatively recent release date.
However, I noticed that all the firmware versions have a bootloader version that is OLDER (!) than the one I currently have.
My current bootloader version starts with U (U1B), while the supposedly newer firmware has bootloader version that starts with S (e.g. S7E).
Back then, I was told to never install a firmware that has an older bootloader version than the currently installed one.
What am I missing here...?
I appreciate your help!
Thanks

Sorry, but "U" doesn't stand for bootloader version, but the next to it digit. You're on bootloader 1 and latest firmware is 7. I'd recommend you to try first nougat firmaware with the some bootloader version: 1 (- to check if you like it or not), if you try firmware with bootloader 2 or higher, you no longer can revert to marshallow in case you don't like it

gone66 said:
Sorry, but "U" doesn't stand for bootloader version, but the next to it digit. You're on bootloader 1 and latest firmware is 7. I'd recommend you to try first nougat firmaware with the some bootloader version: 1 (- to check if you like it or not), if you try firmware with bootloader 2 or higher, you no longer can revert to marshallow in case you don't like it
Click to expand...
Click to collapse
Got it. Thanks a lot, my friend!

Please don't updgrade you will regret it. Ram management, performance, and battery life will be much worse.

Related

[Q] Want to upgrade to 5.0.1 officially.

Hello,
I bought Note 4 (Model: SM-N910F) in Germany, and now running android version
4.4.4, I want to upgrade to the official version 5.0.1 from website:
http://www.sammobile.com/firmwares/database/SM-N910F/
Which version is recommended from the website?
Debating between both versions: Germany or Unknown, Which version is preferable?
And do need root to flash a new version?
I am interested in a clean system with no additives/applications (in English) with good battery time.
Thanks,
idan.
idann said:
Hello,
I bought Note 4 (Model: SM-N910F) in Germany, and now running android version
4.4.4, I want to upgrade to the official version 5.0.1 from website:
Which version is recommended from the website?
Debating between both versions: Germany or Unknown, Which version is preferable?
And do need root to flash a new version?
I am interested in a clean system with no additives/applications (in English) with good battery time.
Thanks,
idan.
Click to expand...
Click to collapse
You don't need root to flash a new firmware.
I would recommend wiping the phone to factory status before you flash a new firmware.
N910F will use the BOC3 software.
This should work okay.
/N910FXXU1BOC3_N910FVFG1BOC2_VDC/
Yes of course, I will implement to make a factory reset before flash new firmware.
BOC3 = Unknown version.
I understand this rom from Dutch, It will be ok? or wait to OTA upgrade?
After upgrade system to 5.0.1, my device will receive OTA?
idann said:
Yes of course, I will implement to make a factory reset before flash new firmware.
BOC3 = Unknown version.
I understand this rom from Dutch, It will be ok? or wait to OTA upgrade?
After upgrade system to 5.0.1, my device will receive OTA?
Click to expand...
Click to collapse
I upgraded a few days ago from N910FXXU1ANK4 ATO 4.4.4 to N910FXXU1BOC3 Unknown and I can say that it's working nicely. Had issues when updating as I was first trying to flash a BOC3 version from RO Vodafone, but had issues while flashing (Volume size too big, Odin invalid ext4 image). I was able to upgrade to N910FXXU1BOC3 Unknown without any issues.
In case you get into trouble while upgrading, you can do a emergency re-initialization from Kies3, based on your model number and serial number (on device, under the battery).
If you are flashing a different region ROM, make sure you do not have Reactivation lock as it will block your attempt to flash a new ROM.
@lolozaur thanks about information.
Version N910FXXU1BOC3 (5.0.1) will include touchwiz interface?
I prefer a clean system like nexus version, can you recommend a convenient interface (launcher)?
idann said:
@lolozaur thanks about information.
Version N910FXXU1BOC3 (5.0.1) will include touchwiz interface?
I prefer a clean system like nexus version, can you recommend a convenient interface (launcher)?
Click to expand...
Click to collapse
Don't have much information regarding the Note 4 ROM community as i just got the device one week ago.
But, if you want to keep your Knox counter set to 0 and have your warranty available, you have to flash only stock ROMs from good sources (i prefer sammobile).
I personally like the new Touchwiz on 5.0.1 and I think it will keep getting better when we'll get the S6 Touchwiz in future updates. I would not flash an AOSP ROM on the Note 4.
Not sure about this but if you want an AOSP OS (nexus version) you will be losing some of the functionality of the Note 4, such as the S-Pen and S-Note integration and maybe the S-Health and Heartrate sensor.
@lolozaur
Flash of new version 5.0.1 can lock again device for locked region?
The lock was released by call (5 minutes) with local microsim.
Thanks.
idann said:
@lolozaur
Flash of new version 5.0.1 can lock again device for locked region?
The lock was released by call (5 minutes) with local microsim.
Thanks.
Click to expand...
Click to collapse
It should not lock. My device is also used outside the unlock region and I did not have any troubles after the upgrade.
I am flashing 5.0.1 and looks good! even touchwiz interface looks clean.
Thank you for your kind assistance.

Yotaphone getting too hot

Hello Everybody,
I bought a Yotaphone 2 model YD206 at Gearbest. The Smartphone arrived with Android KitKat, I used for some time and it was OK, but after updating to Android 5 ROM CN it started getting too hot while casual using such as Facebook, E-mail, Whatsapp.
Is that normal? I expected that it could get warm only while playing games or using GPS, but for my surprise it is getting too hot only for normal usage.
Is there anyone who get the same problem? If I change to another rom such RU or EU can solve the problem?
I already root the phone and also installed xposed together with L Speed to see if the problem persists, but it is still happening.
Thanks in advance!
Is there a chinese version of Lollipop?
Anyway, I see many people like you complaining about the phone getting hot after an upgrade. My guess is that its related to the baseband version. Since your model is YD206, are you sure you have flashed the correct chinese baseband with this so-called CN firmware (isn't it HK? Isn't it for YD201 models?)?
fcarlosjr said:
Is there a chinese version of Lollipop?
Anyway, I see many people like you complaining about the phone getting hot after an upgrade. My guess is that its related to the baseband version. Since your model is YD206, are you sure you have flashed the correct chinese baseband with this so-called CN firmware (isn't it HK? Isn't it for YD201 models?)?
Click to expand...
Click to collapse
Yes, the model before updating was YD206 CN and after flashing to Android 5 it changed to YD201 HK 1.124d.
Is there a CN firmware running Android 5? I only found HK. Maybe this is the reason it is getting hot, the baseband / radio from these versions are different, can it be?
Yeah, I would definitely flash the YD206 baseband.
In this thread here (https://forum.xda-developers.com/yotaphone-one/help/guide-everything-to-yotaphone2-t3547194), there's a revamped version of the YotaFlasher attached to the first post. With this one, it is possible to select what to flash individually to the device, i.e, whether system+radio+userdata, or only system, or only radio etc. With that you can choose to flash only the radio files from YD206 firmwares.
Use this reworked YotaFlasher, download any chinese Kitkat firmware and make sure to allow to flash only the radio binaries when prompted.
fcarlosjr said:
Yeah, I would definitely flash the YD206 baseband.
In this thread here (https://forum.xda-developers.com/yotaphone-one/help/guide-everything-to-yotaphone2-t3547194), there's a revamped version of the YotaFlasher attached to the first post. With this one, it is possible to select what to flash individually to the device, i.e, whether system+radio+userdata, or only system, or only radio etc. With that you can choose to flash only the radio files from YD206 firmwares.
Use this reworked YotaFlasher, download any chinese Kitkat firmware and make sure to allow to flash only the radio binaries when prompted.
Click to expand...
Click to collapse
Great! With this I can flash only the radio files fomr YD206 firmware. Thanks a lot!
I will do this process and reply with the results in the next hours.

how to downgrade from official 8.0 to 6.0

I try with Odin but it is not...please.
Try to download latest 6.0 frimware but I think bootloader is locked and it's impossible.
Have you tried with ticking bootloader option i Odin ?
anarasgarli said:
Try to download latest 6.0 frimware but I think bootloader is locked and it's impossible.
Click to expand...
Click to collapse
oh yes..
Sparkynis said:
Have you tried with ticking bootloader option i Odin ?
Click to expand...
Click to collapse
yes.
nm180618 said:
I try with Odin but it is not...please.
Click to expand...
Click to collapse
I believe i read somewhere on here that you can only flash the same bootloader version as 8.0 is version 2 so the only one you can downgrade to is one with bootloader version 2 and that is 7.0 i understand. Correct me if i am wrong though,
daveparki said:
I believe i read somewhere on here that you can only flash the same bootloader version as 8.0 is version 2 so the only one you can downgrade to is one with bootloader version 2 and that is 7.0 i understand. Correct me if i am wrong though,
Click to expand...
Click to collapse
Correct.
Find 7.0 Firmware that is at least March 2018 or newer (Binary 2 Rom) to downgrade from 8.0 Oreo
benjamen50 said:
Correct.
Find 7.0 Firmware that is at least March 2018 or newer (Binary 2 Rom) to downgrade from 8.0 Oreo
Click to expand...
Click to collapse
Just download the firmware for 6.0.1 and flash it in odin, I've done it several times and it works very nicely.
I'm surprised they would allow 6.0.1 firmware to flash what model is your phone sm-g935f and was it on 8.0?
BL code drops to 6.0 without code but network goes
daveparki said:
I believe i read somewhere on here that you can only flash the same bootloader version as 8.0 is version 2 so the only one you can downgrade to is one with bootloader version 2 and that is 7.0 i understand. Correct me if i am wrong though,
Click to expand...
Click to collapse
yes only the latest 7.0 firmware
Hello,
I downgraded to 6.0 but phone is now stuck in boot loop and i'm unable to access recovery mode.
I'm only able to access download mode.
Please how can i resolve this problem?
Hey guys, who knows do we have option like — flash fw with older bootloaders and then do isolated new bootloader flash to make older fw work?
Something like that, because i "heard" similar tricks in internet, like people are flashing modem and bootloader bins separately after downgrade flashing like from android 8 to 6. But didn't find proper instructions on that.
Is it possible? Is there instruction out there?
Yeah, oreo is better than nougat and yeah yeah new features, new updates blablabla. I just believe that every device is always better with its first software - we all saw and know how Apple does, i dont think that other companies dont do something like this...after masscopy of notches personally i dont have any doubts...why you think samsung "upgrades" this bootloader sh*t? It's the same thing like it was with iphone 4s - no downgrade option, and "upgraded" version of fw forcedly reduced the work of processor and other performances - you forced to BUY new one. Same politics in Samsung.
Well, for me marshmallow is better than all others in using S7 - it's faster and bugfree than nougat or oreo, yes it's oldy and even some basic performance features not exist, but still android 6 is the best for S7. I used custom roms but they are really buggy, badly buggy, definitely not a choice for everyday using. Oh i missed the days with nexus phones...not pixels.
Advice
Alex-M8 said:
Just download the firmware for 6.0.1 and flash it in odin, I've done it several times and it works very nicely.
Click to expand...
Click to collapse
my friend you were correct she worked said failed after BL CP gave it a shot with hydrarom and she loaded right up to my amazement!!!
thxs
mark5150 said:
my friend you were correct she worked said failed after BL CP gave it a shot with hydrarom and she loaded right up to my amazement!!!
thxs
Click to expand...
Click to collapse
Explain bro..how is the performance? How it feels?

I flashed wrong version SM-G935F

Hi guys,
I made a big mistake.
I flashed this version of firmware CNX-G935FXXS7ESK7 ( is VDF version for Germany ) on my SM-G935F
But is wrong version.
I want to install this version G935FXXS6ESI4.
But i recive error Devices 7 Binary 6
any fix for my problem ?
I know, phone don t let me to make downgrade. But G935FXXS6ESI4 is the last version for "Open" phone.
Denis10Andrei said:
Hi guys,
I made a big mistake.
I flashed this version of firmware CNX-G935FXXS7ESK7 ( is VDF version for Germany ) on my SM-G935F
But is wrong version.
I want to install this version G935FXXS6ESI4.
But i recive error Devices 7 Binary 6
any fix for my problem ?
I know, phone don t let me to make downgrade. But G935FXXS6ESI4 is the last version for "Open" phone.
Click to expand...
Click to collapse
You have flashed through Odin?
Gargoyles said:
You have flashed through Odin?
Click to expand...
Click to collapse
Yes
Denis10Andrei said:
Hi guys,
I made a big mistake.
I flashed this version of firmware CNX-G935FXXS7ESK7 ( is VDF version for Germany ) on my SM-G935F
But is wrong version.
I want to install this version G935FXXS6ESI4.
But i recive error Devices 7 Binary 6
any fix for my problem ?
I know, phone don t let me to make downgrade. But G935FXXS6ESI4 is the last version for "Open" phone.
Click to expand...
Click to collapse
Ai twrp ?
nicohak said:
Ai twrp ?
Click to expand...
Click to collapse
))
Sa inteleaga toti.
Yes, i have TWRP, and now i have SuperManRom latest version installed.
But i need stock firmware ((
Denis10Andrei said:
))
Sa inteleaga toti.
Yes, i have TWRP, and now i have SuperManRom latest version installed.
But i need stock firmware ((
Click to expand...
Click to collapse
The " Device 7 Binary 6 " error means that this version of firmware that you want to install has an older version of bootloader. and by installing the wrong firmware, that means your bootloader version has changed into a new one, maybe the newest by now. What your phone is trying to say in other words is that you can't downgrade your bootloader.
Explanation for what I wrote above is quite simple, ignore the last 4 characters on each version that you posted here, and you have: G935FXXS7xxxx and G935FXXS6xxxx.
Using TWRP is the best way to avoid the problem of different versions of bootloaders.
Though, you shall wait for samsung to upload a newer version if you trully wish to have your phone stock 100%.
AlexNec01 said:
The " Device 7 Binary 6 " error means that this version of firmware that you want to install has an older version of bootloader. and by installing the wrong firmware, that means your bootloader version has changed into a new one, maybe the newest by now. What your phone is trying to say in other words is that you can't downgrade your bootloader.
Explanation for what I wrote above is quite simple, ignore the last 4 characters on each version that you posted here, and you have: G935FXXS7xxxx and G935FXXS6xxxx.
Using TWRP is the best way to avoid the problem of different versions of bootloaders.
Though, you shall wait for samsung to upload a newer version if you trully wish to have your phone stock 100%.
Click to expand...
Click to collapse
^^^^^^ this ^^^^^^
AlexNec01 said:
The " Device 7 Binary 6 " error means that this version of firmware that you want to install has an older version of bootloader. and by installing the wrong firmware, that means your bootloader version has changed into a new one, maybe the newest by now. What your phone is trying to say in other words is that you can't downgrade your bootloader.
Explanation for what I wrote above is quite simple, ignore the last 4 characters on each version that you posted here, and you have: G935FXXS7xxxx and G935FXXS6xxxx.
Using TWRP is the best way to avoid the problem of different versions of bootloaders.
Though, you shall wait for samsung to upload a newer version if you trully wish to have your phone stock 100%.
Click to expand...
Click to collapse
I found now an version of UK (BTU)
Version Android 8.0.0
Changelist 15877854
Build date Tue, 17 Dec 2019 07:06:27 +0000
Security Patch Level 2019-12-01
Product code BTU
PDA G935FXXS7ESL5
CSC G935FOXA7ESL5
With this version it should work, right ?
Denis10Andrei said:
I found now an version of UK (BTU)
Version Android 8.0.0
Changelist 15877854
Build date Tue, 17 Dec 2019 07:06:27 +0000
Security Patch Level 2019-12-01
Product code BTU
PDA G935FXXS7ESL5
CSC G935FOXA7ESL5
With this version it should work, right ?
Click to expand...
Click to collapse
yep

Downgrading Galaxy S8 (Exynos) - Bootloader version question

I have my reasons for wanting a device that runs Android 7, but can that subsequently be upgraded to Android 8 (and above), and I am thinking that a second hand Galaxy S8 might do the job.
However, since I am looking at second hand phones, there is no guarantee that it would actually be on Android 7 (unless the online shop is willing to check for me), and I am just wondering if, in the instance where the phone comes with Android 8 or above, would I be able to flash it back to Android 7, or would it be dependent on bootloader version. And if it is bootloader version dependant, which version would allow me to downgrade back to Android 7?
Thanks.
xAxB said:
I have my reasons for wanting a device that runs Android 7, but can that subsequently be upgraded to Android 8 (and above), and I am thinking that a second hand Galaxy S8 might do the job.
However, since I am looking at second hand phones, there is no guarantee that it would actually be on Android 7 (unless the online shop is willing to check for me), and I am just wondering if, in the instance where the phone comes with Android 8 or above, would I be able to flash it back to Android 7, or would it be dependent on bootloader version. And if it is bootloader version dependant, which version would allow me to downgrade back to Android 7?
Thanks.
Click to expand...
Click to collapse
On the S8 android version 7 has a binary ( bootloader ) version 1. Early version of Oreo has a binary ( bootloader ) 1 as well ie: beta and next few upgrades. I can't remember exactly when the version 2 binary ( bootloader ) was introduced, might have been 3 or 4 version of Oreo before being stable.
If looking for a 2nd phone that can by downgraded to android 7 you will need bl version 1. Anything with bl version 2 and higher can not be downgraded to android version 7.
You can check in settings - about phone - software information - Baseband version. Binary ( bootloader ) number will be the 5th number/letter from the right, you can also check build number as well.
spawnlives said:
On the S8 android version 7 has a binary ( bootloader ) version 1. Early version of Oreo has a binary ( bootloader ) 1 as well ie: beta and next few upgrades. I can't remember exactly when the version 2 binary ( bootloader ) was introduced, might have been 3 or 4 version of Oreo before being stable.
If looking for a 2nd phone that can by downgraded to android 7 you will need bl version 1. Anything with bl version 2 and higher can not be downgraded to android version 7.
You can check in settings - about phone - software information - Baseband version. Binary ( bootloader ) number will be the 5th number/letter from the right, you can also check build number as well.
Click to expand...
Click to collapse
Thanks a lot. Do you know if custom ROMs, for instance Lineage also update the baseband as you go up versions?
The second hand shop I was looking at update everything they sell with the latest available update and I suspect that is common practice. So I am thinking that the best option for me would be to sacrifice the e-fuse on my Samsung S7 with Android 7.0, and start playing with various Android versions / ROMs. However, I may want to go back to Android 7.0 on that phone eventually, so it is important that I don't accidentally mess that up.
xAxB said:
Thanks a lot. Do you know if custom ROMs, for instance Lineage also update the baseband as you go up versions?
The second hand shop I was looking at update everything they sell with the latest available update and I suspect that is common practice. So I am thinking that the best option for me would be to sacrifice the e-fuse on my Samsung S7 with Android 7.0, and start playing with various Android versions / ROMs. However, I may want to go back to Android 7.0 on that phone eventually, so it is important that I don't accidentally mess that up.
Click to expand...
Click to collapse
I normally use stock rom's as some of my apps don't work well with custom roms. Usually the only time that i've installed a custom roms is if someone else is having trouble with the installation process then i revert back to stock.
The Baseband ( in about phone ) will always show the current version of the OS whether it's stock or custom that you are on ( including updates ).
As far as i know custom roms do not increase you bootloader version number. So you should be able to revert back to the current stock rom that your on. You can always check bootloader version in Download ( odin ) Mode.
If you have any questions you should ask in the custom roms section for more information.

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