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Hi all,
I have this model
Phone: SM-G955F
Android version: 7.0
Build number: NRD90M.G955FXXU1AQDD
I haven't touched anything or updated anything in at least 6 months and the work has been working fine.
I did update yesterday the "Samsung music" app however, not sure if that has anything to do with my problem.
This morning I got a message "Please restart your device, some apps are overloading the system".
So I did a reboot and now the device won't start.
I hate the red message "Custom Binary Blocked By FRP Lock" and the device stays turned off.
I didn't touch anything, so what on earth caused this?!
OEM Lock appears to be ON. FPR Lock is also ON now.
I had the phone rooted when I bought it but I'm using stock firmware.
Also, haven't had any issues in over 6 months so this I am very curious what could cause this to suddenly happen.
I read some guides that I have to re-flash stock firmware again, but I don't see how that will prevent the issue from happening again
Please help
I downloaded Odin and then what looks like the latest stock firmware.
Not sure how that is going to help. I had stock firmware before too
Hum. What can you boot into, recovery (is it stock recovery)? download mode? will it boot to setup in system, as it should if you have an FRP happening.
I had a nightmare of a day yesterday.
Downloaded the latest stock rom and flashed it using Odin. That worked fine.
Then I added TWRP and the phone got soft-bricked because apparently TWRP is not compatible with any of the latest firmware versions (who knew!)
Then I spent hours looking at hacks and found that Notorious zip that you can flash after getting into TWRP via the old BL/smash Start on Odin trick
Then phone showed verification error with the only option to Wipe all data (which I didn't want to do)
Then I managed to reflash the latest stock rom and leave it unrooted for now.
It's a learning experience but I don't like the high stress levels.
The most important thing is that I did nothing to cause the FPR lock and I'm now afraid it might randomly happen every few months
nkomp18 said:
I had a nightmare of a day yesterday.
Downloaded the latest stock rom and flashed it using Odin. That worked fine.
Then I added TWRP and the phone got soft-bricked because apparently TWRP is not compatible with any of the latest firmware versions (who knew!)
Then I spent hours looking at hacks and found that Notorious zip that you can flash after getting into TWRP via the old BL/smash Start on Odin trick
Then phone showed verification error with the only option to Wipe all data (which I didn't want to do)
Then I managed to reflash the latest stock rom and leave it unrooted for now.
It's a learning experience but I don't like the high stress levels.
The most important thing is that I did nothing to cause the FPR lock and I'm now afraid it might randomly happen every few months
Click to expand...
Click to collapse
Generally for the 955F (Exynos, yes?), it's a pretty straight forward process. Yes, you do have to make sure you have the correct TWRP . . .
https://forum.xda-developers.com/s7...overy-official-twrp-hero2lte-3-0-0-0-t3334084
once you flash TWRP, right at the end, or just before then end of the flash, press Vol up, Bixby and power to boot directly into TWRP. Should work just fine. If not, usually re-flashing TWRP and a direct boot to recovery works. Sometimes it take a few times to get the key pressing/timing down.
Yeah, you are right, it can feel pretty stressful.
hi, did you finally fix this problem? I have a s9+ stock firm, got TWRP and rooted and has been using it for a couple of months without issue, including reboot. but today I was using a bank app it kept stopping itself, so without further thinking I restarted the phone and got the red FRP lock on the screen. tried getting into TWRP but said it's blocked by FRP lock. then using ODIN I reflashed the same stock firm, got into the phone, everything is there except root, and of course Titanium works no more!
my question is, if anyone is reading this, is the TWRP still there or not? in order to find out I'll have to flip the OEM lock off and tried to get into TWRP, but would that trigger a factory reset? but if the TWRP is not there anymore, in order to root I'll have to do a system wipe. either way it gonna be troublesome. and besides, what's to prevent its happening all over again?
I'd appreciate any help! thanks))
Simple solution to that DONT turn the OEM unlocking OFF
This toggle unlocks the bootloader for use with custom binarys and recoveries such as TWRP toggling the OEM unlocking off will stop any custom recovery from being flashed with odin and will also not allow the custom recovery on it to be booted for security reasons related to the FRP lock
The OEM lock is linked to the FRP lock both are run through the same toggle you would have noticed when you enabled it that a warning message appeared about the device losing all FRP security measures when enabled if you switch this toggle back to off your FRP lock re activates and the custom recovery that is already installed will now be blocked from being used and the system will render it a security issue and will not allow your system to boot,
So again to save you all this trouble in the future DO NOT tuurn off your oem unlock while you have a custom binary installed,
Yes your devices security is gone but this is the cost you pay when you decided you wanted to root your device,
There is an alternative though if you know what your doing enable oem unlock flash TWRP flash your root and what not then when finished if you know how to pull the recovery from stock firmware and make it into a flashable file with odin you can have root and what not and also keep your oem unlock switched to off bu ti strongly suggest do your reaearch if you choose to take this path.
Hope this helps guys
Matty1993 said:
Simple solution to that DONT turn the OEM unlocking OFF
This toggle unlocks the bootloader for use with custom binarys and recoveries such as TWRP toggling the OEM unlocking off will stop any custom recovery from being flashed with odin and will also not allow the custom recovery on it to be booted for security reasons related to the FRP lock
The OEM lock is linked to the FRP lock both are run through the same toggle you would have noticed when you enabled it that a warning message appeared about the device losing all FRP security measures when enabled if you switch this toggle back to off your FRP lock re activates and the custom recovery that is already installed will now be blocked from being used and the system will render it a security issue and will not allow your system to boot,
So again to save you all this trouble in the future DO NOT tuurn off your oem unlock while you have a custom binary installed,
Yes your devices security is gone but this is the cost you pay when you decided you wanted to root your device,
There is an alternative though if you know what your doing enable oem unlock flash TWRP flash your root and what not then when finished if you know how to pull the recovery from stock firmware and make it into a flashable file with odin you can have root and what not and also keep your oem unlock switched to off bu ti strongly suggest do your reaearch if you choose to take this path.
Hope this helps guys
Click to expand...
Click to collapse
thanks Matty! now that I think about it I might have turned OEM unlock off because some bank app suddenly stopped working and I was trying to guess what went wrong.
Matty1993 said:
Simple solution to that DONT turn the OEM unlocking OFF
This toggle unlocks the bootloader for use with custom binarys and recoveries such as TWRP toggling the OEM unlocking off will stop any custom recovery from being flashed with odin and will also not allow the custom recovery on it to be booted for security reasons related to the FRP lock
The OEM lock is linked to the FRP lock both are run through the same toggle you would have noticed when you enabled it that a warning message appeared about the device losing all FRP security measures when enabled if you switch this toggle back to off your FRP lock re activates and the custom recovery that is already installed will now be blocked from being used and the system will render it a security issue and will not allow your system to boot,
So again to save you all this trouble in the future DO NOT tuurn off your oem unlock while you have a custom binary installed,
Yes your devices security is gone but this is the cost you pay when you decided you wanted to root your device,
There is an alternative though if you know what your doing enable oem unlock flash TWRP flash your root and what not then when finished if you know how to pull the recovery from stock firmware and make it into a flashable file with odin you can have root and what not and also keep your oem unlock switched to off bu ti strongly suggest do your reaearch if you choose to take this path.
Hope this helps guys
Click to expand...
Click to collapse
hi i need your help, i have a samsung galaxy s7 and it's locked by frp (sorry for my english but i'm italian), i try to install official firmware by odin but it say an error sboot.bin fail! (with bt file) and say recovery.img fail! (with ap file), now i understand that my bootloader il blocked by oem block, there is a way to unlock by odin mode or others? i can't have access to recovery or phone.
please help me i'm desperate!
corvasce03 said:
hi i need your help, i have a samsung galaxy s7 and it's locked by frp (sorry for my english but i'm italian), i try to install official firmware by odin but it say an error sboot.bin fail! (with bt file) and say recovery.img fail! (with ap file), now i understand that my bootloader il blocked by oem block, there is a way to unlock by odin mode or others? i can't have access to recovery or phone.
please help me i'm desperate!
Click to expand...
Click to collapse
You need to flash the correct bootloader version to your device IE check the binary number on the firmware file and compare to what is listed on download mode
File binarys have the letter U? example is
G930FXXU2ARA1 or G930FXXU3ARA1
Take note of the number
Now in download mode on the device
Find AP SWREV B: ? An example is
AP SWREV B:2 K:0 S:0
The 2 signifies it's a bit 2 bootloader so the firmware package needed for this device would be for example G930FXX"U2"ABCD
all you have to do is match them up,
AP SWREV B1 = U1 or S1
AP SWREV B2 = U2 or S2
AP SWREV B3 = U3 or S3
As for the flash error message " custom binary blocked by frp lock" means someone has tampered with the firmware, I'd assume you didnt get it from sammobile ? or it's not made for model number check the backing to your S7 model number is located at the bottom in small writing
Will be G930"F" for example also compare the letter to the binary file to make sure your flashing the correct model,
Also what version of odin3 are you using to flash as 6.0 to 7.0 binaries can be flashed with V3.12 as the binary files don't use .lz4 compression however 8.0 binaries do use .lz4 compression this is a new type of compression so requires Odin3 3.13.1 as this odin3 has the capabilities to read and flash the .lz4 binaries to the device
And I'm not sure if your aware but the factory binaries dont have OEM unlock in them to remove the FRP however there is a way that I know how to do it on this particular model but it will vary the B:? In download mode and to if a combination rom is available for your binary number COLOR="Silver"]
---------- Post added at 04:08 AM ---------- Previous post was at 03:57 AM ----------
[/COLOR]
snooyy said:
thanks Matty! now that I think about it I might have turned OEM unlock off because some bank app suddenly stopped working and I was trying to guess what went wrong.
Click to expand...
Click to collapse
All good mate , yeah once that OEM unlock is turned back off all security features are re activated that was your problem did you manage to fix it yet if not all you gotta do is flash the stock recovery and you shouldn't lose your data
Matty1993 said:
---------- Post added at 04:08 AM ---------- Previous post was at 03:57 AM ----------
All good mate , yeah once that OEM unlock is turned back off all security features are re activated that was your problem did you manage to fix it yet if not all you gotta do is flash the stock recovery and you shouldn't lose your data
Click to expand...
Click to collapse
thanks mate yes I got my data back, but re-root it would mean loosing them so I'm running without the root now. good thing is Netflix, prime vedio, bank stuff are all working, bad thing is no titanium(
Matty1993 said:
You need to flash the correct bootloader version to your device IE check the binary number on the firmware file and compare to what is listed on download mode
File binarys have the letter U? example is
G930FXXU2ARA1 or G930FXXU3ARA1
Take note of the number
Now in download mode on the device
Find AP SWREV B: ? An example is
AP SWREV B:2 K:0 S:0
The 2 signifies it's a bit 2 bootloader so the firmware package needed for this device would be for example G930FXX"U2"ABCD
all you have to do is match them up,
AP SWREV B1 = U1 or S1
AP SWREV B2 = U2 or S2
AP SWREV B3 = U3 or S3
As for the flash error message " custom binary blocked by frp lock" means someone has tampered with the firmware, I'd assume you didnt get it from sammobile ? or it's not made for model number check the backing to your S7 model number is located at the bottom in small writing
Will be G930"F" for example also compare the letter to the binary file to make sure your flashing the correct model,
Also what version of odin3 are you using to flash as 6.0 to 7.0 binaries can be flashed with V3.12 as the binary files don't use .lz4 compression however 8.0 binaries do use .lz4 compression this is a new type of compression so requires Odin3 3.13.1 as this odin3 has the capabilities to read and flash the .lz4 binaries to the device
And I'm not sure if your aware but the factory binaries dont have OEM unlock in them to remove the FRP however there is a way that I know how to do it on this particular model but it will vary the B:? In download mode and to if a combination rom is available for your binary number COLOR="Silver"]
---------- Post added at 04:08 AM ---------- Previous post was at 03:57 AM ----------
[/COLOR]
All good mate , yeah once that OEM unlock is turned back off all security features are re activated that was your problem did you manage to fix it yet if not all you gotta do is flash the stock recovery and you shouldn't lose your data
Click to expand...
Click to collapse
thanks for answer, in odin mode it say rp swrev b3 k1 s2, where can i find the frmware with my binary number?
corvasce03 said:
thanks for answer, in odin mode it say rp swrev b3 k1 s2, where can i find the frmware with my binary number?
Click to expand...
Click to collapse
No worries so you have a bit 3 bootloader what does the model number say also in download mode ?
I'll provide you the link to the correct firmware to download that will be 100% official
matty1993 said:
no worries so you have a bit 3 bootloader what does the model number say also in download mode ?
I'll provide you the link to the correct firmware to download that will be 100% official
Click to expand...
Click to collapse
all it say
odin mode
download speed: Fast
product name: Sm-g930f
current binary: Samsung official
system status: Custom
frp lock: On
secure download: Enabled
warranty void: 1 (0x030c)
rp swrev: B3 k1 s2
corvasce03 said:
all it say
odin mode
download speed: Fast
product name: Sm-g930f
current binary: Samsung official
system status: Custom
frp lock: On
secure download: Enabled
warranty void: 1 (0x030c)
rp swrev: B3 k1 s2
Click to expand...
Click to collapse
Yep sweet also what region are you in also so I can make sure the firmwares modem is also region appropriate as they all run on different frequencies other than that that's all the info I need my friend product name is model number you have the same model as me I have G930F also give me two seconds and I'll get the link for you for the correct firmware, as for frp lock your very much quite lucky the warranty void is only "warranty void 1 (0×030c)
If it were : 1 (0×500b) youd be royally screwed for some reason combination roms will not boot on any Knox tripped S7 with : 1 (0×500b) but will boot on any Knox tripped device with : 1 (0×030c) I know this as I have a variety of S7 as I run a phone repair shop and have tested on tripped devices with Knox tripped as both
---------- Post added at 05:34 PM ---------- Previous post was at 05:27 PM ----------
corvasce03 said:
all it say
odin mode
download speed: Fast
product name: Sm-g930f
current binary: Samsung official
system status: Custom
frp lock: On
secure download: Enabled
warranty void: 1 (0x030c)
rp swrev: B3 k1 s2
Click to expand...
Click to collapse
Not sure what region you are but here the link to the S7 G930F pages just scroll down select your country and the select the first available firmware that appears with a U3 or S3 when you have selected your region,
https://www.sammobile.com/firmwares/galaxy-s7/SM-G930F/
Matty1993 said:
Yep sweet also what region are you in also so I can make sure the firmwares modem is also region appropriate as they all run on different frequencies other than that that's all the info I need my friend product name is model number you have the same model as me I have G930F also give me two seconds and I'll get the link for you for the correct firmware, as for frp lock your very much quite lucky the warranty void is only "warranty void 1 (0×030c)
If it were : 1 (0×500b) youd be royally screwed for some reason combination roms will not boot on any Knox tripped S7 with : 1 (0×500b) but will boot on any Knox tripped device with : 1 (0×030c) I know this as I have a variety of S7 as I run a phone repair shop and have tested on tripped devices with Knox tripped as both
---------- Post added at 05:34 PM ---------- Previous post was at 05:27 PM ----------
Not sure what region you are but here the link to the S7 G930F pages just scroll down select your country and the select the first available firmware that appears with a U3 or S3 when you have selected your region,
https://www.sammobile.com/firmwares/galaxy-s7/SM-G930F/
Click to expand...
Click to collapse
ok thanks i try to download it and update you if it go or not
corvasce03 said:
ok thanks i try to download it and update you if it go or not
Click to expand...
Click to collapse
Hey mate no it will 100% work just select your country all firmware from sammobile is guaranteed to be 100% official I use them myself, the only thing however is you need to make an account but the good news its 100% free to make an account but then there another little downfall download speeds are a little slow in free subscription but well worth the wait as I guarantee it will work
Matty1993 said:
Hey mate no it will 100% work just select your country all firmware from sammobile is guaranteed to be 100% official I use them myself, the only thing however is you need to make an account but the good news its 100% free to make an account but then there another little downfall download speeds are a little slow in free subscription but well worth the wait as I guarantee it will work
Click to expand...
Click to collapse
thanks!!!!! it workk it's beautiful!!! thanks thanks thanks!
OK someone please help. I'm having this same issue, except I got a galaxy s6, however when I boot into download mode and plug cable up it recognizes the driver as a modem or sometimes I get it to show up in ports but its named USB serial device, so I'm unable to flash anything through odin. I tried plugging my wife's galaxy s7 up to PC through download mode and her phone doesn't even show up as a USB diagnostic port....I'm seriously stumped on this and having a hell of a time trying to find any info on this My dumbass had stay awake checked at the time and when I went to turn it off I must have accidently unchecked the OEM unlock option resulting in.....a good headache lol....thanks for ur time guys.
corvasce03 said:
thanks!!!!! it workk it's beautiful!!! thanks thanks thanks!
Click to expand...
Click to collapse
No problem mate glad I could help
---------- Post added at 01:56 AM ---------- Previous post was at 01:49 AM ----------
jfoley420 said:
OK someone please help. I'm having this same issue, except I got a galaxy s6, however when I boot into download mode and plug cable up it recognizes the driver as a modem or sometimes I get it to show up in ports but its named USB serial device, so I'm unable to flash anything through odin. I tried plugging my wife's galaxy s7 up to PC through download mode and her phone doesn't even show up as a USB diagnostic port....I'm seriously stumped on this and having a hell of a time trying to find any info on this My dumbass had stay awake checked at the time and when I went to turn it off I must have accidently unchecked the OEM unlock option resulting in.....a good headache lol....thanks for ur time guys.
Click to expand...
Click to collapse
Hey mate i run a phone repair shop it's got nothing to do with the phones it's the computer or drivers
#1 What version of Odin are you using, you should be using the latest I use 3.13.1 as it supports new .lz4 compression for 8.0 oreo firmware,
#2 did you install the latest Samsung drivers.exe because if you didnt the information is not on your computer to read samsungs devices all the information to communicate to the device is stored in these drivers,
If you havent this is your problem, go to Google type in "latest Samsung USB driver.exe download" or check the forums here for it also, download it and simply open the exe and install the drivers,
Reboot and now try, if you still have the same issue what USB cord are you using, try an original Samsung USB cable or decent branded one,
If there error still persists what version of windows are you using,
Thanks
Hello.
(backstory, boring) So, in efforts to root my device, after successfully doing it (or so I thought), I clicked the restart button on the "your phone has been modified, restart to undo process" notification from samsung. My phone had a message that the custom binary had been blocked when restarting. After a while I fixed it just by installing stock firmware from the internet, but not the original from Claro as it didn't have any of the bloatware.
(question) I'm trying to install the recovery now but I keep getting "custom binary(recovery) blocked due to remaining installment balance" on the download section for Odin, and it obviously fails.
OEM Lock: OFF
FRP Lock: OFF
So what is the problem? I already tried installing all the stock files from the firmware I found, but no success.
Any suggestions?
Thanks in advance,
Estebandido1232
Estebandido1232 said:
Hello.
(backstory, boring) So, in efforts to root my device, after successfully doing it (or so I thought), I clicked the restart button on the "your phone has been modified, restart to undo process" notification from samsung. My phone had a message that the custom binary had been blocked when restarting. After a while I fixed it just by installing stock firmware from the internet, but not the original from Claro as it didn't have any of the bloatware.
(question) I'm trying to install the recovery now but I keep getting "custom binary(recovery) blocked due to remaining installment balance" on the download section for Odin, and it obviously fails.
OEM Lock: OFF
FRP Lock: OFF
So what is the problem? I already tried installing all the stock files from the firmware I found, but no success.
Any suggestions?
Thanks in advance,
Estebandido1232
Click to expand...
Click to collapse
same problem, also Claro Puerto Rico, custom binary(recovery) blocked due to remaining installment balance, OEM Lock: OFF
FRP Lock: OFF, on android oreo (8.0) dont show OEM unlock option, spend more than 10 days and it does not appear, I can not downgrade to nougat (7.0) I've tried several versions, but all give DRK error, so I have to go back to Oreo (8.0) the last thing I tried was to install COMBINATION_FA70_G955FXXU1ARA1_CL12792727_QB16458742_REV00_user_mid_noship.tar.md5 which is based on 7.0 to see if Could you activate OEM unlock, but without any results, any help?
WalterSilverio said:
same problem, also Claro Puerto Rico, custom binary(recovery) blocked due to remaining installment balance, OEM Lock: OFF
FRP Lock: OFF, on android oreo (8.0) dont show OEM unlock option, spend more than 10 days and it does not appear, I can not downgrade to nougat (7.0) I've tried several versions, but all give DRK error, so I have to go back to Oreo (8.0) the last thing I tried was to install COMBINATION_FA70_G955FXXU1ARA1_CL12792727_QB16458742_REV00_user_mid_noship.tar.md5 which is based on 7.0 to see if Could you activate OEM unlock, but without any results, any help?
Click to expand...
Click to collapse
I'm able to upgrade/downgrade. I've moved past it and decided not to root it. So I installed 8.0 stock rom for PR signals.
I recently bought an unlocked s8+ which was from Claro, and am getting the same error. This error started popping up after I did a factory reset. The phone was never registered with Claro before, and has a clean IMEI. Does anyone know what could be done to stop this message?
mrh4ck said:
I recently bought an unlocked s8+ which was from Claro, and am getting the same error. This error started popping up after I did a factory reset. The phone was never registered with Claro before, and has a clean IMEI. Does anyone know what could be done to stop this message?
Click to expand...
Click to collapse
I have not found a problem since then. I'm trying now to get the phone working with a Stock Firmware. Downloaded the file from sammobile. I'll let you know how it goes.
Hello friends, did anyone manage to figure this out? im quite mad as ive never seen pre-normal state for RMM. I waited 10 days and no oem ever showed up. I too get this error and can not flash twrp. If anyone has managed to fix this, please help me out if possible. Thanks.
I had...have, actually, the same problem. I bought this phone on Ebay for the express purpose of rooting and running cfw. But when i try to install anything custom i get that same message that a balance is owed on this device. I even tried contacting Claro to inquire about paying the balance.
Long story short, I ordered another Exynos s8 and made sure it wasn't from Puerto Rico or Claro first.
WalterSilverio said:
same problem, also Claro Puerto Rico, custom binary(recovery) blocked due to remaining installment balance, OEM Lock: OFF
FRP Lock: OFF, on android oreo (8.0) dont show OEM unlock option, spend more than 10 days and it does not appear, I can not downgrade to nougat (7.0) I've tried several versions, but all give DRK error, so I have to go back to Oreo (8.0) the last thing I tried was to install COMBINATION_FA70_G955FXXU1ARA1_CL12792727_QB16458742_REV00_user_mid_noship.tar.md5 which is based on 7.0 to see if Could you activate OEM unlock, but without any results, any help?
Click to expand...
Click to collapse
I sold my US version and bought this Exynos version on eBay specifically so I could root. In developer options OEM unlock was missing. I tried flashing TWRP anyway and got the "custom binary blocked due to balance owed on the phone". I never got the pie update and any firmware I tried to install other than the one that came on the phone failed. I ended up just buying a different phone and made sure it was not Claro.
Well I pulled this one out today and flashed a non claro pie firmware. SM-G955FXXS8DTC6. Amazingly it passed. When I got the phone on the OEM unlock toggle was there and I got excited. I flashed the latest TWRP an it failed and I got that same annoying notification about the outstanding balance. But I do have OEM unlocked now at least. That's progress. There has to be a way around this
Hi guys, i have a galaxy s7 of a customer that doesn't absolutely remember email and password for his google account connected to the phone(and so it's OEM Locked).
i tried to follow many guides on the forum but this happened:
i can't root the phone (because the FRP is locking the Flash),
nor install 6.0.1 (because of the error "sw rev check fail device 2 binary 1")
i can't use bluetooth method to skip setup guide (it was fixed in 6.0.1)
i can't use RealTerm because it can't make me save the number to proceed the guide(also fixed in 6.0.1)
what can i do? how do i bypass the FRP? or how do I downgrade to 6.0.1?
Downgrading can be a problem caused by the bootloader, make sure you try to flash a stock ROM with the same version bootloader as shown with this number
G930FXXU2ERD5
The customer would have had to enter a secondary / recovery email while making that Google account, tell them to check their other email addresses for confirmation emails around the time they set up the phone, then they can find the email address of the google account and reset the password to that email address
You have to downgrade to 6.0 and then there are plenty of ways to unlock.
Download 6.0 and latest firmware.
In Odin
1st and 3rd field from old firmware
2nd and 4th field from new firmware
If You need guide how to unlock from 6.0 let me know
LaHunnid said:
You have to downgrade to 6.0 and then there are plenty of ways to unlock.
Download 6.0 and latest firmware.
In Odin
1st and 3rd field from old firmware
2nd and 4th field from new firmware
If You need guide how to unlock from 6.0 let me know
Click to expand...
Click to collapse
1st and 3rd field in ODIN is Bootloader & Modem
If you flash new firmware to 2nd and 4th you'll end up with new firmware flashed with old bootloader and it won't boot most likely / brick
*Detection* said:
1st and 3rd field in ODIN is Bootloader & Modem
If you flash new firmware to 2nd and 4th you'll end up with new firmware flashed with old bootloader and it won't boot most likely / brick
Click to expand...
Click to collapse
I did that and it didn't brick
LaHunnid said:
I did that and it didn't brick
Click to expand...
Click to collapse
AP is the system / OS, you're telling OP to flash a new version of Android (AP) with an old bootloader, in order to downgrade to 6.0.1, your method would not downgrade anything other than bootloader & modem and old bootloader with new OS will almost certainly brick
To downgrade you need to flash old bootloader (BL) & old Android 6.0.1 (AP), and probably old modem (CP), CSC is the only thing left
And as already stated, downgrading the BL is the problem that prevents most people from downgrading in the first place
check out my tutorial https://forum.xda-developers.com/galaxy-s7/how-to/g930f-frp-unlock-helps-99-g930f-t3791424
Massive thanks
S6unbricker said:
check out my tutorial https://forum.xda-developers.com/galaxy-s7/how-to/g930f-frp-unlock-helps-99-g930f-t3791424
Click to expand...
Click to collapse
I've been absolutely stuck for days trying to sort out the bloody FRP lock on an S7 (SM-G930F) that had been gifted to my wife by my father-in-law where he hadn't removed the accounts before passing it over.
My wife then did an update that the phone requested when it started up and that went wrong at which point I get involved and factory reset it...oh BIG mistake... and that's where my problems started made worse by the fact my father-in-law couldn't remember which account he had setup on the phone....or even the password to possible accounts!! I consider myself to be well versed in all things tech but I had absolutely no idea FRP existed and was absolutely baffled when i saw the message on the screen after flashing the stock firmware (G930FXXU2DRB6) that was on there according to the recovery mode. I've been trying so many different things over the past week all current methods failed...then I came across this one...which had seemed to be blocked by admins but I was able to click on the link in the 2nd post and grab the password from the readme in the first, which i must admit made it a bit dubious and not sure why @S6unbricker felt the need to do that but there's no issues it doesn't go to a stupid survey site or anything it just goes to a text file on mega which has one line and that's the password!
I followed the method to the letter and, to my surprise and joy, it's actually worked a treat...the S7 is no longer a paper weight!!!
Massive thanks to @S6unbricker :good: ...any chance of re-posting but without the password on the file or putting the password in the post?
Frp doesn't block eng bootloader...after u flash eng boot u can simply use Abd command to remove. Or the longer method flash factory binaries. Enable oem unlock (most important part). Then flash stock rom make sure to remove userdata.img ....on a side note wondering if adding the Samsung retail app and activating it, then using the login data to remove the app via factory data reset might work.
deshaney said:
Frp doesn't block eng bootloader...after u flash eng boot u can simply use Abd command to remove. Or the longer method flash factory binaries. Enable oem unlock (most important part). Then flash stock rom make sure to remove userdata.img ....on a side note wondering if adding the Samsung retail app and activating it, then using the login data to remove the app via factory data reset might work.
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Click to collapse
From my experience the combination roms (which I presume you are referring to when you say eng bootloader) didn't solve my issue. Yes I could get them on the phone and boot into them, change the settings or use adb but obviously I don't want the factory binary to stay on there so as soon as I flashed it back to the current firmware, back to square one!
Most poeple advised to use HOME CSC instead of CSC when flashing from combination rom back to stock but I couldn't get odin to flash with HOME CSC.
No I'm referring to the boot.img file. Combination ROMs don't enable su access via she'll.
Samsung s7
Ok I know this is an old Post but I'm brand new to Odin and all the unlock lingo.. can anyone explain to me how to downgrade to bypass the frp on my Galaxy I just bought , I'm very tech savvy just need a walkthrough any help would be greatly appreciated
Short question: how can I downgrade or FRP unlock a S8+ G955F that is FRP locked and on very recent firmware?
Here are the details:
I am trying to assist a family member with a Galaxy S8+ (SM-G955F) that they have just purchased online. When purchasing it they were not told that FRP lock is on (FRP LOCK: ON) and OEM lock is on (OEM LOCK: ON). It was running Bootloader v2 on very recent stock firmware. It has been successfully flashed with BL_G955FXXU2CRED and AP_G955FXXU2CRED...
It was on G955FXXU2CRED firmware. I was able to successfully able to flash the Combination ROM COMBINATION_FA70_G955FXXU2ARE1 (full name COMBINATION_FA70_G955FXXU2ARE1_CL12792727_QB18097821_REV00_user_mid_noship.tar)
With combination rom, it seemed that I could enable USB Debugging, and also follow the steps for *#0808# IME to enable the appropriate mode for adb codes to be entered. I was able to find the device with 'adb devices', and I thought that the FRP unlock codes on the command line worked. But after re-flashing to the current Stock Firmware again, FRP lock was still there.
It seems I need to downgrade to Nougat 7.0, but I am on Bootloader V2. Odin identifies it by a FAIL with binary not matched (2 vs 1). So it seems that if I could get a method to keep Bootloader V2 and install Stock Firmware for Android 7.0 Nougat, I would be halfway there to fixing the FRP problem. However, I can't find any firmware or ROMs for G955F that includes Bootloader V2. This is identified by a U2 in the firmware name, like: G955FXXU2CRED . Is there a way to keep the BL Bootloader V2 but install AP ROM from Nougat?
I have spent many hours on this so far, and I just wanted to say thank you to all you guys who are helping on XDA, I really appreciate it. I have read about 7 day waiting periods for OEM UNLOCK but I don't see how it applies, as I can't do anything aside from use Combination ROM, use Odin, or go to the FRP locked FW which seems to be a dead end?
If there was a reliable method for rooting this G955F device with this G955FXXU2CRED firmware, I would be open to trying it.
details
Another note: AP SW Rev is identified as B:2 K:1 S:1
I don't think once a phone has the boot loader CRED, that the phone can be downgraded. Hope I am wrong.
JeffDC said:
I don't think once a phone has the boot loader CRED, that the phone can be downgraded. Hope I am wrong.
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I think you are right. The combination ROM seems to built on selinux version 7.
I think I need to root with twrp. But first I need to enable OEM unlock. I'm not sure if that will be possible with combination ROM or if I should flash latest stock and then wait 7 days??
same problem here... If an solution available pls write here
anonan said:
I think you are right. The combination ROM seems to built on selinux version 7.
I think I need to root with twrp. But first I need to enable OEM unlock. I'm not sure if that will be possible with combination ROM or if I should flash latest stock and then wait 7 days??
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Click to collapse
Flashing stock rom and waiting 7 days would be the safe option.
I am not exactly sure what you are trying to achieve.
https://www.samsung.com/us/support/frp/
anonan said:
I think you are right. The combination ROM seems to built on selinux version 7.
I think I need to root with twrp. But first I need to enable OEM unlock. I'm not sure if that will be possible with combination ROM or if I should flash latest stock and then wait 7 days??
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Click to collapse
I think I read someone on CarHDRom who flashed the rom via TWRP, and then when the phone booted into system for the first time at setting up, they changed the date to 8 days earlier, and when the phone setup was completed and booted into system, the OEM unlock was available.
Re: CRED I believe once it has been installed on a phone, you can not go back to a previous version (pre CRED).
JeffDC said:
I think I read someone on CarHDRom who flashed the rom via TWRP, and then when the phone booted into system for the first time at setting up, they changed the date to 8 days earlier,.
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Click to collapse
I wonder if I can do this date trick with combination FW to enable OEM unlock.
anonan said:
I wonder if I can do this date trick with combination FW to enable OEM unlock.
Click to expand...
Click to collapse
It seems there are a few solutions to frp if you can selectively restore flash files. It looks like Samsung tool Pro can do this, but is there any free adb method?
http://forum.gsmhosting.com/vbb/f453/new-solution-remove-frp-s8-plus-sm-g955f-last-security-2422242/
Especially this http://forum.gsmhosting.com/vbb/f453/g955f-rev-2-frp-100-no-box-2417931/
Hi, could you send me a link of the combination firmware please Can't find it anywhere My email address is [email protected] I currently have similar experience of yours I thought everythings gonna be okay but it was too good to be true Help
anonan said:
Short question: how can I downgrade or FRP unlock a S8+ G955F that is FRP locked and on very recent firmware?
Here are the details:
I am trying to assist a family member with a Galaxy S8+ (SM-G955F) that they have just purchased online. When purchasing it they were not told that FRP lock is on (FRP LOCK: ON) and OEM lock is on (OEM LOCK: ON). It was running Bootloader v2 on very recent stock firmware. It has been successfully flashed with BL_G955FXXU2CRED and AP_G955FXXU2CRED...
It was on G955FXXU2CRED firmware. I was able to successfully able to flash the Combination ROM COMBINATION_FA70_G955FXXU2ARE1 (full name COMBINATION_FA70_G955FXXU2ARE1_CL12792727_QB18097821_REV00_user_mid_noship.tar)
With combination rom, it seemed that I could enable USB Debugging, and also follow the steps for *#0808# IME to enable the appropriate mode for adb codes to be entered. I was able to find the device with 'adb devices', and I thought that the FRP unlock codes on the command line worked. But after re-flashing to the current Stock Firmware again, FRP lock was still there.
It seems I need to downgrade to Nougat 7.0, but I am on Bootloader V2. Odin identifies it by a FAIL with binary not matched (2 vs 1). So it seems that if I could get a method to keep Bootloader V2 and install Stock Firmware for Android 7.0 Nougat, I would be halfway there to fixing the FRP problem. However, I can't find any firmware or ROMs for G955F that includes Bootloader V2. This is identified by a U2 in the firmware name, like: G955FXXU2CRED . Is there a way to keep the BL Bootloader V2 but install AP ROM from Nougat?
I have spent many hours on this so far, and I just wanted to say thank you to all you guys who are helping on XDA, I really appreciate it. I have read about 7 day waiting periods for OEM UNLOCK but I don't see how it applies, as I can't do anything aside from use Combination ROM, use Odin, or go to the FRP locked FW which seems to be a dead end?
If there was a reliable method for rooting this G955F device with this G955FXXU2CRED firmware, I would be open to trying it.
Click to expand...
Click to collapse
anonan said:
It seems there are a few solutions to frp if you can selectively restore flash files. It looks like Samsung tool Pro can do this, but is there any free adb method?
http://forum.gsmhosting.com/vbb/f453/new-solution-remove-frp-s8-plus-sm-g955f-last-security-2422242/
Especially this http://forum.gsmhosting.com/vbb/f453/g955f-rev-2-frp-100-no-box-2417931/
Click to expand...
Click to collapse
It worked! Flashed the Comb file with Odin and do what he does in the video, then flashed the Stock G955FXXU2CRED and now its unlocked I dont know how i did this but its worked!
darknagel said:
It worked! Flashed the Comb file with Odin and do what he does in the video, then flashed the Stock G955FXXU2CRED and now its unlocked I dont know how i did this but its worked!
Click to expand...
Click to collapse
Excellent.
I still can't get this to work. Have you purchased Samsung tool Pro to do the flashing of individual boot files? What version?
Hi there. I already bypassed the frp.. If you need. Hp with android 8.0 even with the binary 2. I have some comb files and working stock roms through odin. Feel free to pm me via my email [email protected]. Thanks!
how
darknagel said:
It worked! Flashed the Comb file with Odin and do what he does in the video, then flashed the Stock G955FXXU2CRED and now its unlocked I dont know how i did this but its worked!
Click to expand...
Click to collapse
Hi
Can you let me know the steps as i am trying but i cant flash the stock firmware after the factory binary
thx
oz_ezekiel said:
Hi
Can you let me know the steps as i am trying but i cant flash the stock firmware after the factory binary
thx
Click to expand...
Click to collapse
Download latest odin and try again. I too got stuck in similar situation. Realised the issue is due to Odin. If you are using latest and encountered this error, try one version earlier.
I too can confirm that the combination-ROM works like a charm with odin. FRP kinda unlocked itself
Hi all,
I'm having a nightmare of a time with my Galaxy S7... For some unknown reason I decided to root my phone about 2 months ago using CF Auto Root.. worked great.. This morning, was having bad lag issues, so I restarted the phone.. as soon as the Samsung logo came up, I got a red message at the top of the screen saying "Custom Binary locked by FRP".. kind of freaked out and booted the phone into Recovery mode.. wiped Cache and wiped phone (to go back to factory setting I guess).. restarted... since then, I had no boot.. it did loop for a while as I was trying to charge the phone.. but that's it.
Now, the only way the phone will power on is if I plug it into my computer in Download Mode. I am trying to flash the ROM, custom or stock, but Odin fails almost as soon as it starts the sboot.bin and the phone screen shows "SW REV. CHECK FAIL (BOOTLOADER) DEVICE: 6, BINARY: 1".. Also, When I try to power on the phone, it HAS to be plugged in to my computer or charger cable and it just loops with a message at the top of the screen.
I can't do anything with this phone and cant find any solutions online... please help! :crying:
PM me for images of all screens please
I had the some problem while playing with my handset I switched off OEM unlock for some reason under developer option..
Next time i reset my handset it stuck on that warning
You need to download combination file, flash it with odin, then unlock developer mode, toggle OEM unlock, than flash back your current firmware, or if you have full twrp back up restore it
JayMor81 said:
Hi all,
I'm having a nightmare of a time with my Galaxy S7... For some unknown reason I decided to root my phone about 2 months ago using CF Auto Root.. worked great.. This morning, was having bad lag issues, so I restarted the phone.. as soon as the Samsung logo came up, I got a red message at the top of the screen saying "Custom Binary locked by FRP".. kind of freaked out and booted the phone into Recovery mode.. wiped Cache and wiped phone (to go back to factory setting I guess).. restarted... since then, I had no boot.. it did loop for a while as I was trying to charge the phone.. but that's it.
Now, the only way the phone will power on is if I plug it into my computer in Download Mode. I am trying to flash the ROM, custom or stock, but Odin fails almost as soon as it starts the sboot.bin and the phone screen shows "SW REV. CHECK FAIL (BOOTLOADER) DEVICE: 6, BINARY: 1".. Also, When I try to power on the phone, it HAS to be plugged in to my computer or charger cable and it just loops with a message at the top of the screen.
I can't do anything with this phone and cant find any solutions online... please help! :crying:
PM me for images of all screens please
Click to expand...
Click to collapse
This problem appears on the forum over and over. Its a direct result of not understanding what type of S7 you have and what you need to do before modification.
The error you have in Odin means the firmware you are trying to flash is older than the bootloader file on your device. You can never downgrade a bootloader only upgrade.
In your case you need to flash a firmware version 6 or above for your device. So if you have a branded T Mobile for example you will need to download and flash T Mobile firmware version 6 or above. The firmware must also be for your region where you live.
The FRP lock is because you didn't sign out of, or remove the Google account on the device before modification. Its a security feature. It will still appear after you've flashed firmware but as long as you know the email and password the phone will start fine.
cooltt said:
This problem appears on the forum over and over. Its a direct result of not understanding what type of S7 you have and what you need to do before modification.
The error you have in Odin means the firmware you are trying to flash is older than the bootloader file on your device. You can never downgrade a bootloader only upgrade.
In your case you need to flash a firmware version 6 or above for your device. So if you have a branded T Mobile for example you will need to download and flash T Mobile firmware version 6 or above. The firmware must also be for your region where you live.
The FRP lock is because you didn't sign out of, or remove the Google account on the device before modification. Its a security feature. It will still appear after you've flashed firmware but as long as you know the email and password the phone will start fine.
Click to expand...
Click to collapse
Dammit.. I tried to put as much detail as possible in there lol.. obviously I forgot some.. My mistake the Galaxy s7 that I am using is a Rogers Mobile (Canada) SM-G930W8. As for not signing out before modification, omfg, that makes perfect sense.. didn't even think of doing that before rooting.. I appreciate the help!! I will give this a go and see what outcome I get.. Thanks!
[/COLOR]That was nice of you to respond so helpfully, despite you having seen the scenario posted over and over.
cooltt said:
This problem appears on the forum over and over. Its a direct result of not understanding what type of S7 you have and what you need to do before modification.
The error you have in Odin means the firmware you are trying to flash is older than the bootloader file on your device. You can never downgrade a bootloader only upgrade.
In your case you need to flash a firmware version 6 or above for your device. So if you have a branded T Mobile for example you will need to download and flash T Mobile firmware version 6 or above. The firmware must also be for your region where you live.
The FRP lock is because you didn't sign out of, or remove the Google account on the device before modification. Its a security feature. It will still appear after you've flashed firmware but as long as you know the email and password the phone will start fine.
Click to expand...
Click to collapse
Can't make or receive calls
Please I need help my I rooted my S7 (flat) flashed the original OS with odin Installed Twrp flashed Andriod 9 and since then I can't make or receive calls wifi seems fine. Someone please come to my rescue:crying:
Cesilina said:
Please I need help my I rooted my S7 (flat) flashed the original OS with odin Installed Twrp flashed Andriod 9 and since then I can't make or receive calls wifi seems fine. Someone please come to my rescue:crying:
Click to expand...
Click to collapse
The S7 didn't receive Android 9 so the ROM is a custom one. Any issues with custom ROM's should be asked on the ROM thread itself where you got the ROM from. It's quite normal for custom ROM'S to have bugs.
You can try flashing the ROM (Android 9 Pie) again to see if it works. If not there are several different A9 ROM's to choose from.
cooltt said:
The S7 didn't receive Android 9 so the ROM is a custom one. Any issues with custom ROM's should be asked on the ROM thread itself where you got the ROM from. It's quite normal for custom ROM'S to have bugs.
You can try flashing the ROM (Android 9 Pie) again to see if it works. If not there are several different A9 ROM's to choose from.
Click to expand...
Click to collapse
Thank you for reply. I have tried atleast 4 different custom ROMs but to avail
Cesilina said:
Thank you for reply. I have tried atleast 4 different custom ROMs but to avail
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Click to collapse
Do you still have an imei number listed in settings?
Can't make or receive calls
cooltt said:
Do you still have an imei number listed in settings?
Click to expand...
Click to collapse
Yes please I still have an IMEI number