What is CM.BIN inside firmware? - Galaxy S6 Q&A, Help & Troubleshooting

If you unpack stock firmware file you'll find:
sboot.bin Bootloader
boot.bin Kernel
system.bin Rom
modem.bin Baseband
csc.bin CSC
Hidden.bin Related to CSC
cm.bin
What is this?

am also curious about what the cm.bin is.
seems to look like it is in place only to prevent flashing previous builds. If you come across any information please share.
thanks

I disassembled sboot.bin and cm.bin with IDA. It seems that cm = Cryptography Manager. Preventing flashing previous builds is implemented in sboot.bin (bootloader).

debugfan said:
I disassembled sboot.bin and cm.bin with IDA. It seems that cm = Cryptography Manager. Preventing flashing previous builds is implemented in sboot.bin (bootloader).
Click to expand...
Click to collapse
What happens if i delete cm.bin and flash on my phone?

romeoroad said:
What happens if i delete cm.bin and flash on my phone?
Click to expand...
Click to collapse
Just back up with twrp first, save that to ur pc, then wipe ur internal storage+system+data, that should have ur whole device set!

debugfan said:
I disassembled sboot.bin and cm.bin with IDA. It seems that cm = Cryptography Manager. Preventing flashing previous builds is implemented in sboot.bin (bootloader).
Click to expand...
Click to collapse
I don't think so.
It contains AES-256 DRBG encryption keys. I think it's for fingerprint, signatured keys from Samsung for bootable images (boot.img & recovery.img), bootloader (sboot.bin) and other signed binaries (modem.bin & cm.bin)
and for KNOX private mode.
The sboot.bin prevents the previous build itself.

forumber2 said:
I don't think so.
It contains AES-256 DRBG encryption keys. I think it's for fingerprint, signatured keys from Samsung for bootable images (boot.img & recovery.img), bootloader (sboot.bin) and other signed binaries (modem.bin & cm.bin)
and for KNOX private mode.
The sboot.bin prevents the previous build itself.
Click to expand...
Click to collapse
If this is for fingerprint etc that would explain why CM & AOSP builds couldn't support that sensor specifically.

Related

Upgrade to 5.1.1 with ODIN fails, BL and Modem already 5.1.1

Hi all
I thinks I've done a big mess. Following the xda guide to install modified ROM via ODIN, I've upgraded BL and Modem to 5.1.1
Now, the red string appears on the left top of the screen: INVALID MAGIC STRING
This is the guide
Do exactly step-by-step the following things:
- Unplug your Phone (IMPORTANT!)
- Turn your Phone completely off (This is IMPORTANT)
- Start your Phone in download mode on this way: Press Vol down + Home + Power buttons till the screen turns on, press Vol Up to continue (Only enter download mode on this way, otherwise it won't work!!)[/B]
- Open Odin 3.10.6 on your PC (Make sure you're using this version of Odin, other versions won't work correctly maybe!)
- Click on the 'BL' button, and load in your BOOTLOADER tar.md5 file for your model
- Click on the 'CP' button, and load in your MODEM tar.md5 file for your model
- DON'T TOUCH ANYTHING ELSE (you can brick your phone if you choose other settings in Odin)
- Now Connect your phone to your computer (DO NOT connect your phone before this step, otherwise it won't work!)
- Click on the Start button
- Wait till it finish flashing.
- Your phone reboots automatically after flashing.
- Always check after flashing: Settings -> About device -> Baseband; that should show the same modem build number noted as here.
And also check if the bootloader got flashed correctly by downloading an AndroidTerminal app, and enter this command: getprop ro.boot.bootloader
Unfortunately, after this procedure I can't rollback to 5.0.2, neither I can't install 5.1.1. stock firmwares (from sammobile) with ODIN. It goes always FAIL:
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> SingleDownload.
<ID:0/003> sboot.bin
<ID:0/003> NAND Write Start!!
<ID:0/003> cm.bin
<ID:0/003> boot.img
<ID:0/003> recovery.img
<ID:0/003> system.img
<ID:0/003> FAIL!
<ID:0/003>
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
Please anyone of you can help me to unblock my device? Whatever firmware is good if device will work again.
Thanks
Rob
rmastro said:
Please anyone of you can help me to unblock my device? Whatever firmware is good if device will work again.
Thanks
Rob
Click to expand...
Click to collapse
Thanks for the guide, but description of what EXACTLY did you do would be much helpful.
Moreover, the guide mentions Boot loader and modem update. So why system.img?
davebugyi said:
Thanks for the guide, but description of what EXACTLY did you do would be much helpful.
Moreover, the guide mentions Boot loader and modem update. So why system.img?
Click to expand...
Click to collapse
Ok. These the steps:
- Upgraded BL and MODEM 5.1.1 via ODIN following the xda guide
- Got RED message on device reboot INVALID MAGIC STRING
- Then, tried to install stock 5.1.1 firmware via ODIN and got fail (after system.img)
The starting firmware was G920FXXU0AOA5
Thanks
rmastro said:
Ok. These the steps:
- Upgraded BL and MODEM 5.1.1 via ODIN following the xda guide
- Got RED message on device reboot INVALID MAGIC STRING
- Then, tried to install stock 5.1.1 firmware via ODIN and got fail (after system.img)
The starting firmware was G920FXXU0AOA5
Thanks
Click to expand...
Click to collapse
Because that is an old firmware. If you have your BL and Modem updated to 5.1.1 you cannot downgrade back to 5.0.2.
Flash a correct 5.1.1 firmware (COH2 ending maybe).
davebugyi said:
Because that is an old firmware. If you have your BL and Modem updated to 5.1.1 you cannot downgrade back to 5.0.2.
Flash a correct 5.1.1 firmware (COH2 ending maybe).
Click to expand...
Click to collapse
I've G920FXXU2COH2_G920FHUI2COH1_G920FXXU2COH2 file, but it's not working at all
Any suggestion?
Thanks
Hey I had a problem like yours I did the same thing (flashing a 5.1.1 bootloader and modem) and ended up having to flash a stock 5.1.1 rom with odin downloaded from sam mobile but mine kept failing after hidden.img so did some research and found this
https://www.reddit.com/r/GalaxyS6/comments/35zshn/howto_fix_a_failed_odin_flash_softbrick_hiddenimg/
That seemed to fix my problem it booted up no problem completely stock just had to root it again and flash the rom I was after in the first place (xtretolite 5.1.1 deo-dexed)
Thanks Jamie
Unfortunately It went not good. I've done that procedure, extracting the hidden.img and renaming it but after the flash it gives me the same red string INVALID MAGIC STRING.
Don't know what to do more!
Rob
rmastro said:
Thanks Jamie
Unfortunately It went not good. I've done that procedure, extracting the hidden.img and renaming it but after the flash it gives me the same red string INVALID MAGIC STRING.
Don't know what to do more!
Rob
Click to expand...
Click to collapse
Are you sure you have a 920F?
How come then COH2 "does not work at all"?
Invalid Magic String
davebugyi said:
Are you sure you have a 920F?
How come then COH2 "does not work at all"?
Click to expand...
Click to collapse
Hi, yes 920F
The flash procedure fails just after Odin is writing "system.img" like I copied.
There should be a way to erase everything and start again...
That Invalid Magic String, what does it mean???
rmastro said:
Hi, yes 920F
The flash procedure fails just after Odin is writing "system.img" like I copied.
There should be a way to erase everything and start again...
That Invalid Magic String, what does it mean???
Click to expand...
Click to collapse
Every thread I found about Invalid Magic String was about incorrect flash - either firmware or not allowed downgrade.
davebugyi said:
Every thread I found about Invalid Magic String was about incorrect flash - either firmware or not allowed downgrade.
Click to expand...
Click to collapse
So, there's no chance to fix?
rmastro said:
So, there's no chance to fix?
Click to expand...
Click to collapse
There should be a chance
Are you using the latest ODIN? (3.10.7) and running it as admin? Are the usb drivers correctly installed?
Also it would be good to know what is your current bootloader version.
davebugyi said:
There should be a chance
Are you using the latest ODIN? (3.10.7) and running it as admin? Are the usb drivers correctly installed?
Also it would be good to know what is your current bootloader version.
Click to expand...
Click to collapse
Tried with all ODIN version, same result. Anyway I'm trying now with 3.10.7 again
The USB drivers installed, uninstalled and installed again.
The BL version should be 5.1.1, because this stage of the upgrade seems to go fine.
I've also uploaded both BL and Modem with these http://forum.xda-developers.com/showpost.php?p=60112855&postcount=3
rmastro said:
Tried with all ODIN version, same result. Anyway I'm trying now with 3.10.7 again
The USB drivers installed, uninstalled and installed again.
The BL version should be 5.1.1, because this stage of the upgrade seems to go fine.
I've also uploaded both BL and Modem with these http://forum.xda-developers.com/showpost.php?p=60112855&postcount=3
Click to expand...
Click to collapse
I am out of ideas.
I have a 920F as well and used those exact files as you to upgrade first, but not having any issues flashing the COH2 firmware with ODIN.
davebugyi said:
I am out of ideas.
I have a 920F as well and used those exact files as you to upgrade first, but not having any issues flashing the COH2 firmware with ODIN.
Click to expand...
Click to collapse
There should be a way to downgrade
What if I try to install a 5.0.2 firmware?
rmastro said:
There should be a way to downgrade
What if I try to install a 5.0.2 firmware?
Click to expand...
Click to collapse
If you do have 5.1.1 bootloader you van not downgrade anymore - the warning was even in the official OTA update from Samsung.
rmastro did u fix your issue? me facing same problem, getting almost mad coz no solution work with me by now after 15 days

Struggling to root my weird Galaxy S6

Hello!
I have been searching the net to find a suitable root guide so that I can root my Samsung Galaxy S6.
I'm still running Android 5.1.1, there are no updates. I'm from the UK but I bought my mobile for a little bit cheaper than normal price online and that means that the phone is from Vietnam (but not locked to any network).
I've tried contacting Samsung UK, who have not been helpful and keep telling me to speak with Samsung Vietnam, obviously this would not be possible as I dont speak/write Vietnamese.
All the root guides I have come across dont match my firmware version:
Brand: Samsung
Model: SM-G920F
Android Version: 5.1.1 (lmy47x.g920fxxu3qpa7)
Could someone help me or point me in the right direction?
I'd be really happy with Android 6 stock edition for me phone, not too fussed about the cracked apps.
Thanks in advance!
Bump?
Just update it to latest 6.0.1 ROM (G920FXXU3DPFJ - XME). Install arter97's TWRP and install latest SuperSU zip (2.76 right now) to root the device.
forumber2 said:
Just update it to latest 6.0.1 ROM (G920FXXU3DPFJ - XME). Install arter97's TWRP and install latest SuperSU zip (2.76 right now) to root the device.
Click to expand...
Click to collapse
Please excuse my ignorance, but I am a noob when it comes to rooting, I have not done it before.
I will look at guides.
Where would I find the suitable rom? then I will look for arter97's TWRP and SuperSU zip 2.76
Thanks!
CL4RKY said:
Please excuse my ignorance, but I am a noob when it comes to rooting, I have not done it before.
I will look at guides.
Where would I find the suitable rom? then I will look for arter97's TWRP and SuperSU zip 2.76
Thanks!
Click to expand...
Click to collapse
G920FXXU3DPFJ - XME : http://www.sammobile.com/firmwares/download/76038/G920FXXU3DPFJ_G920FOLB3DPFJ_XME/
arter97 TWRP: http://arter97.com/browse/S6/kernel/21.0/g920fi/arter97-recovery-g920fi-21.0-twrp_3.0.2-0.tar.md5
Odin v3.11.1; http://forum.xda-developers.com/attachment.php?attachmentid=3804544&d=1467772303
SuperSU zip; https://download.chainfire.eu/969/SuperSU/UPDATE-SuperSU-v2.76-20160630161323.zip
forumber2 said:
G920FXXU3DPFJ - XME : http://www.sammobile.com/firmwares/download/76038/G920FXXU3DPFJ_G920FOLB3DPFJ_XME/
arter97 TWRP: http://arter97.com/browse/S6/kernel/21.0/g920fi/arter97-recovery-g920fi-21.0-twrp_3.0.2-0.tar.md5
Odin v3.11.1; http://forum.xda-developers.com/attachment.php?attachmentid=3804544&d=1467772303
SuperSU zip; https://download.chainfire.eu/969/SuperSU/UPDATE-SuperSU-v2.76-20160630161323.zip
Click to expand...
Click to collapse
Thank you so much mate Been wanting to update my phone for ages!
forumber2 said:
G920FXXU3DPFJ - XME : http://www.sammobile.com/firmwares/download/76038/G920FXXU3DPFJ_G920FOLB3DPFJ_XME/
arter97 TWRP: http://arter97.com/browse/S6/kernel/21.0/g920fi/arter97-recovery-g920fi-21.0-twrp_3.0.2-0.tar.md5
Odin v3.11.1; http://forum.xda-developers.com/attachment.php?attachmentid=3804544&d=1467772303
SuperSU zip; https://download.chainfire.eu/969/SuperSU/UPDATE-SuperSU-v2.76-20160630161323.zip
Click to expand...
Click to collapse
Hello again
Thanks for sending the links........I've tripped the Knox security so it is now void ffs! :crying:
Will this stop anything from working?
I've been trying to look for a guide but not sure which one to follow now.
1) Open ODIN
2) Connect phone
3) Tick "ap" and select G920FXXU3DPFJ_G920FOLB3DPFJ_G920FXXU3DPFJ_HOME.tar.md5
4) Start
I dont care about the rooting just updating to Android 6.0.1
Thanks in advance
P.S Maybe my warranty isnt void pheww!!
but when I try to load the firmware you told me to download for Android 6.0.1 the program shows this error:
"mmd5 error! binary is invalid"
Thanks!
*UPDATE* the file type was .tar.md5, I removed the .md5 so it was just .tar
CL4RKY said:
P.S Maybe my warranty isnt void pheww!!
but when I try to load the firmware you told me to download for Android 6.0.1 the program shows this error:
"mmd5 error! binary is invalid"
Thanks!
Click to expand...
Click to collapse
If your knox is 0x1, your warranty is void.
If Odin gives md5 error, it means the downloaded file is corrupt, you need to redownload it again.
forumber2 said:
If your knox is 0x1, your warranty is void.
If Odin gives md5 error, it means the downloaded file is corrupt, you need to redownload it again.
Click to expand...
Click to collapse
Okay mate, yeah I had a panic but its not void haha! :victory:
Thanks so much for helping me with this, appreciate it
I will try downloading the file again. :fingers-crossed:
<ID:0/005> Added!!
<ID:0/005> Odin engine v(ID:3.1203)..
<ID:0/005> File analysis..
<ID:0/005> SetupConnection..
<ID:0/005> Initialzation..
<ID:0/005> Get PIT for mapping..
<ID:0/005> Firmware update start..
<ID:0/005> SingleDownload.
<ID:0/005> sboot.bin
<ID:0/005> cm.bin
<ID:0/005> boot.img
<ID:0/005> recovery.img
<ID:0/005> system.img
<ID:0/005> FAIL!
<ID:0/005>
<ID:0/005> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
Downloaded a new one but this happens when I try to run it?
Okay managed to get this working.
For anyone else who gets the "All threads completed. (succeed 0 / failed 1)" error, I just changed the USB cable.
If you can just use the official Samsung cable in case you swap it for another cable that doesn't work...

Is G900PVPU3CPG1 bootloader locked? - Solved: No

Users of TWRP are showing up in the #android-root channel saying that TWRP is broken and won't flash on G900PVPU3CPG1 (released today, August 25th 2016).
As I'm not familiar with the S5 and whether or not it requires some form of OEM unlock procedure in Marshmallow, I figured I'd ask you guys here.
Proceed to upgrade with caution, I don't know if you can downgrade from it?
For reference:
Code:
<ID:0/005> Added!!
<ID:0/005> Odin engine v(ID:3.1203)..
<ID:0/005> File analysis..
<ID:0/005> SetupConnection..
<ID:0/005> Initialzation..
<ID:0/005> Get PIT for mapping..
<ID:0/005> Firmware update start..
<ID:0/005> SingleDownload.
<ID:0/005> recovery.img
<ID:0/005> FAIL! (Auth)
<ID:0/005>
<ID:0/005> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
Auth error on recovery.img write is typical of a locked bootloader, so I really wonder what's going on here.
If user just missed a step, then great, otherwise I'm posting this in the hope that I may save some people's phones from experiencing an early retirement.
Update: Okay, replies say it isn't, still doesn't explain why this user was running into this issue though. Hmm.
Ok, this post got me scared. Now I have downloaded the new update, but i have postponed the installation. In the mean time I rooted the phone (G900PVPS3CPE2). Can it be that users are not using the correct version of TWRP to install? I followed the instructions here. In these instructions, it is mentioned not to use the newer version of TWRP (twrp-3.0.2-1-klte.img.tar) but the older version (twrp-3.0.2-0-klte.img.tar). Maybe that has something to do with twrp not loading through odin. Can anyone confirm root with latest update (G900PVPU3CPG1)?
eurohunter said:
Ok, this post got me scared. Now I have downloaded the new update, but i have postponed the installation. In the mean time I rooted the phone (G900PVPS3CPE2). Can it be that users are not using the correct version of TWRP to install? I followed the instructions here. In these instructions, it is mentioned not to use the newer version of TWRP (twrp-3.0.2-1-klte.img.tar) but the older version (twrp-3.0.2-0-klte.img.tar). Maybe that has something to do with twrp not loading through odin. Can anyone confirm root with latest update (G900PVPU3CPG1)?
Click to expand...
Click to collapse
Only reason i heard not to use 3.0.2.1 was because it didnt recognize microsd cards correctly i think.
The bootloader is unlocked. I flashed, was able to flash twrp 3.0.2.2
chippinganimal said:
Only reason i heard not to use 3.0.2.1 was because it didnt recognize microsd cards correctly i think.
Click to expand...
Click to collapse
Correct, that issue should be fixed in 3.0.2-2.
The only reason to use 3.0.2-0 is for Aroma support (Aroma hasn't been updated in a very long time and doesn't support newer kernel framebuffer drivers afaict)
FettyWap said:
The bootloader is unlocked. I flashed, was able to flash twrp 3.0.2.2
Click to expand...
Click to collapse
Thanks! Wish I knew why that user was running into Auth fail.
Jcadduono glad they fixed it when i flash it was with 3.0.2.1 and i told you twrp need a update and i see they updated to 3.0.2.2 for work it, i feedback you they flashed fine of the previous rom version hope they find out the issue.
Sent from my SM-G935F using XDA-Developers mobile app

Failed Downgrading J700F

Hi all. I have Samsung Galaxy J7 2015 (SM-J700F). I just received the recent update (April 2017). However, I don't like it and want to downgrade to the previous one. I have downloaded Odin and the firmware which is J700FXXU2BPH3_J700FOLB2BPH2_XID or whatever you call it. It failed after trying to execute cm.bin file. I have done some research and I found that Samsung has locked the bootloader in order to prevent downgrading process. However, in those threads, they only mentioned about downgrading from Android 6 to Android 5. In my case, I just want to downgrade from the previous security update/patch in the same Android version which is Android 6. Is this still possible in my case to do downgrading to my desired version?
Samsung locks older bootloaders from being flashed. It is possible to downgrade the OS without downgrading the bootloader by just flashing all the .tar.md5 files in Odin EXCEPT for the "BL" one since that one is the bootloader. Good luck friend
NullaVisus said:
Samsung locks older bootloaders from being flashed. It is possible to downgrade the OS without downgrading the bootloader by just flashing all the .tar.md5 files in Odin EXCEPT for the "BL" one since that one is the bootloader. Good luck friend
Click to expand...
Click to collapse
Thanks for your reply. What do you mean by "BL"? I am new on this Odin thing.
alphamorpho said:
Thanks for your reply. What do you mean by "BL"? I am new on this Odin thing.
Click to expand...
Click to collapse
See attached picture. Your stock ROM should be a zip containing multiple files. ending in ".tar.md5" and beginning with "BL, AP, CP, and CSC" respectively. You just add and check all of the appropriate files EXCEPT for "BL"
NullaVisus said:
See attached picture. Your stock ROM should be a zip containing multiple files. ending in ".tar.md5" and beginning with "BL, AP, CP, and CSC" respectively. You just add and check all of the appropriate files EXCEPT for "BL"
Click to expand...
Click to collapse
My zip file only contains 1 file. And from the tutorial I have watched it belongs to AP section. But, I have resolved this problem by removing 3 files, sboot.bin, cm.bin & modem.bin.

Noob tried to downgrade his G930F and he failed - please help

On this morning i tried to downgrade my G930F from 7.0 to 6.0.1 but i failed and now i need help.
I installed odin and downloaded the 6.0.1 flies BL, AP, CP and CSC then placed the files to odin. My phone was in the Downloading mode.
And now stands "SW REV. CHECK FAIL. DEVICE: 2, BINARY: 1" on my display.
On Odin:
"<ID:0/009> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/009> Odin engine v(ID:3.1203)..
<ID:0/009> File analysis..
<ID:0/009> SetupConnection..
<ID:0/009> Initialzation..
<ID:0/009> Get PIT for mapping..
<ID:0/009> Firmware update start..
<ID:0/009> SingleDownload.
<ID:0/009> sboot.bin
<ID:0/009> param.bin
<ID:0/009> FAIL!
<ID:0/009>
<ID:0/009> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)"
If you need more details then tell me what you want.
So please can anyone help c:
Try flashing the latest stock ROM for your phone.
audit13 said:
Try flashing the latest stock ROM for your phone.
Click to expand...
Click to collapse
Only the AP file?
Thank you.
Android 7.0 (Stock ROM) is running but my IMEI is not invaild what can do now?
Did you not downgrade your phone? I also cannot downgrade my Galaxy S7 exynos.
Did you also have Fail in ODIN device:2 binary:1
edit: I saw you, you also have the same fails.
NexusHD said:
Thank you.
Android 7.0 (Stock ROM) is running but my IMEI is not invaild what can do now?
Click to expand...
Click to collapse
Make sure you're using the latest version of ODIN to flash back to the latest firmware
ODIN 3.12.7 I think is latest and should work
Hi, we try to downgrade the firmware not upgrading
*Detection* said:
Make sure you're using the latest version of ODIN to flash back to the latest firmware
ODIN 3.12.7 I think is latest and should work
Click to expand...
Click to collapse
raffaels said:
Hi, we try to downgrade the firmware not upgrading
Click to expand...
Click to collapse
Use the latest BL and CP and then choose AP and CSC from the downgrade version you want to.
Samsung check the BL version and lock it for downgrading to previous (old) BL version. Correct me if I'm wrong, it based on my experience downgrade to MM.
[/COLOR]
raffaels said:
Hi, we try to downgrade the firmware not upgrading
Click to expand...
Click to collapse
So the phone is still working at this point?
OK, Make sure the phone is actually saying it is the G930F in download mode, a lot are faked
Did you also lose your IMEI Number?
jimbohatake said:
Use the latest BL and CP and then choose AP and CSC from the downgrade version you want to.
Samsung check the BL version and lock it for downgrading to previous (old) BL version. Correct me if I'm wrong, it based on my experience downgrade to MM.
Click to expand...
Click to collapse
jimbohatake said:
Use the latest BL and CP and then choose AP and CSC from the downgrade version you want to.
Samsung check the BL version and lock it for downgrading to previous (old) BL version. Correct me if I'm wrong, it based on my experience downgrade to MM.
Click to expand...
Click to collapse
I've downgraded from Nougat to MM without doing that, I just flashed the 4 normal MM files using CSC and not HOME_CSC, the phone had some errors on boot so I flashed it again, 2nd time it was fine
Never had any errors with ODIN though
Could be later builds of Nougat have locked something like that, not tried to downgrade since then
*Detection* said:
I've downgraded from Nougat to MM without doing that, I just flashed the 4 normal MM files using CSC and not HOME_CSC, the phone had some errors on boot so I flashed it again, 2nd time it was fine
Never had any errors with ODIN though
Could be later builds of Nougat have locked something like that, not tried to downgrade since then
Click to expand...
Click to collapse
I am sure, my phone is not fake, I've got 160k points on Antutu v7 and 5980 points on Geekbench MultiCore. Do you still use MM?
First I did as you told me. Odin stuckt at ERASING: USERDATA Partition after ODIN Flash. I've waited 3-4 minutes then I restarted my phone then I wiped everything. Now everything works good.
Do you think it is a big problem that it stuckt at ODIN?
jimbohatake said:
Use the latest BL and CP and then choose AP and CSC from the downgrade version you want to.
Samsung check the BL version and lock it for downgrading to previous (old) BL version. Correct me if I'm wrong, it based on my experience downgrade to MM.
Click to expand...
Click to collapse
raffaels said:
I am sure, my phone is not fake, I've got 160k points on Antutu v7 and 5980 points on Geekbench MultiCore. Do you still use MM?
Click to expand...
Click to collapse
Not a fake S7, but a lot of the snapdragon models are faked to look like Exynos versions, so the G930F ROM won't work on it if it is snapdragon
You need to check Download Mode to be 100% sure what model it is, whatever model it says in DL mode is the correct model
Vibration doesn't work on MM, do you have any problem with vibration?
*Detection* said:
Not a fake S7, but a lot of the snapdragon models are faked to look like Exynos versions, so the G930F ROM won't work on it if it is snapdragon
You need to check Download Mode to be 100% sure what model it is, whatever model it says in DL mode is the correct model
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raffaels said:
Vibration doesn't work on MM, do you have any problem with vibration?
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I'm not on MM, but no I don't remember having any problems with it before
raffaels said:
Vibration doesn't work on MM, do you have any problem with vibration?
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That's because you're using new bootloader with old android.
The nougat bootloader has some under the hood changes which won't work with MM, vibration was one of them. I assume it just makes a faint whining noise instead? I had the same after rolling back to MM via a TWRP backup.
raffaels said:
First I did as you told me. Odin stuckt at ERASING: USERDATA Partition after ODIN Flash. I've waited 3-4 minutes then I restarted my phone then I wiped everything. Now everything works good.
Do you think it is a big problem that it stuckt at ODIN?
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I dont know about that sorry, because when im downgrading it doesnt happen to me. if everything works good then its fine
---------- Post added at 08:03 AM ---------- Previous post was at 07:59 AM ----------
raffaels said:
Did you also lose your IMEI Number?
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i did once, but i flash it again with the latest CP, AP and CSC, i get back my IMEI number.
oh yeah, if you have latest BL and CP on phone, just flash AP and CSC you want ex. MM version
I did it, everything worked on MM fine except vibration. So I had to upgrade it again.
"SW REV. CHECK FAIL. DEVICE: 2, BINARY: 1" means you have flashed wrong firmware version.
When you download firmware look at the fourth number after model code. (for example G930FXXU1AQA3 - fourth number is 1, thats binary number of that firmware).
In download mode you see what is your device binary number, it has to be the same your downloaded firmware has.

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