How to flash 930U firmware to 930P with BL5/BL6

binh24

Senior Member
UPDATE:
Samsung is testing a new firmware for the unlocked S7 and will be a bootloader version 8
<latest>G930UUEU8CRJ2.DM/G930UOYM8CRJ2/G930UUEU8CRJ2</latest> Verizon


How to do this :
Step 1 : You need root your phone. Check the post HERE This works for Oreo And Nougat Roms
Step 2 : Use FlashFire to install custom binary from 930U firmware (tar have Recovery -Boot -System-Cached img). DOWNLOAD HERE (Extract tar file)
- Click the Red + button and choose 'Flash Firmware Package' and choose 'G930UUES4CRG3.tar' select all partitions
- Click on EverRoot, and disable/uncheck inject supersu option
- Click the Red + and choose 'Wipe' (Wipe data/Factory reset all your app)
- Ensure System data, 3rd party apps and Dalvik cache are CHECKED
- Ensure Mount /system read/write is CHECKED AND "Process Cache" DISABLED (cause bootloop after flash with flashfire)
- Press the big FLASH button.


After the flash it complete, you will have 930U Firmware run on 930P Bootloader v5/v6 with no root.

Enjoy pure Stock 930U Rom :cool:

On attached My phone run CRG3 latest U rom on 930P Bootloader. Rooted with custom kernel ;)
 

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lvpre

Senior Member
Jun 23, 2011
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When you give us the files and instruction how to flash?
There was a thread posted a few weeks ago with the info. Results have been mixed in terms of network connection. The main thread linked to a site called gsmzambia . Will probably work unless you are on Sprint, but you will have a few errors and bugs.

Hopefully, he found something new out.
 

lvpre

Senior Member
Jun 23, 2011
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Weird submenus show when rom has no CSC.
Try to flash my file !
Did you take all the parts from the CRG3 firmware? cache.img is from CSC, correct? Do you basically take the stock firmware for the XAA variant?

Also, did you have to convert the files from img.ext4 to img files? What did you use for this? I've used sgs4toext4 to convert those files to a quasi img file to open in LinuxReader, but you are unable to edit them. When I downloaded the Oreo firmware the file structure was ext4. I can open normal img files in 7zip, but not img.ext4 files.
Thanks.
 
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binh24

Senior Member
Did you take all the parts from the CRG3 firmware? cache.img is from CSC, correct? Do you basically take the stock firmware for the XAA variant?

Also, did you have to convert the files from img.ext4 to img files? What did you use for this? I've used sgs4toext4 to convert those files to a quasi img file to open in LinuxReader, but you are unable to edit them. When I downloaded the Oreo firmware the file structure was ext4. I can open normal img files in 7zip, but not img.ext4 files.
Thanks.
Cache from CSC. All img.lz need to convert back to img for FlashFire can flash
 

tahasmarty

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Aug 12, 2012
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www.tahadev.com
File is now uploading .....

@lvpre
Bugs free :good:
After updating my phone is on bootloop and not even goto recovery i have done all the steps correctly root successfully then install U firmware successfully after that phone is on bootloop then i tired rooting again and flash the root boot file from here S7_Oreo_Su_Binary_Only_ADB_Root.zip then phone is boot normally but when it comes to setup screen phone reboots automatically :( what can i do now?
 
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driverdis

Senior Member
Aug 11, 2010
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Can anyone confirm if SafetyNet passes with this method? I have a spare S7 on Sprint nougat v5 that I use for Pokemon Go and require SafetyNet to pass.
 

Aggiedude

New member
Aug 6, 2018
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Sprint BLv5

Has anyone with BLv5 actually gotten this method to work?

I have tried this several times now. Followed GSMZambia directions making my own tar to flash and followed this thread. Both resulted in phone getting stuck in a boot loop, flashing the custom firmware lock screen then restarting.
 

Aggiedude

New member
Aug 6, 2018
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You cannot update to Oreo if you are on BLv55. Installing Nougat this way worked while being on BLv5, however, this does NOT seem to work with Sprint even if you flash the cache.img file from the csc file.

It gets stuck on AutoPreconfig and makes you reboot as soon as you put the sim card in and then gives an error when on the sim card blue screen so it is never able to set up the services.

I tried disabling AutoPreconfig through adb and that does remove the popup message and allows me to search for networks under the network operator settings and Sprint does come up but it is never able to connect to the network.
 

lvpre

Senior Member
Jun 23, 2011
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Agree with all the above comments this method is not working properly... i am again on stock sprint v7 bootloader firmware :)
You cannot update to Oreo if you are on BLv55. Installing Nougat this way worked while being on BLv5, however, this does NOT seem to work with Sprint even if you flash the cache.img file from the csc file.

It gets stuck on AutoPreconfig and makes you reboot as soon as you put the sim card in and then gives an error when on the sim card blue screen so it is never able to set up the services.

I tried disabling AutoPreconfig through adb and that does remove the popup message and allows me to search for networks under the network operator settings and Sprint does come up but it is never able to connect to the network.
This method probably works great if you have anything other than Sprint or Sprint MVNO, but something is conflicting like it does during a typical root of the G930P. Someone suggested to see if the phone was reporting an IMEI number. Since Sprint still uses CDMA, it doesn't really depend on the SIM for service. Maybe one idea is to flash an edited build prop in flashfire at the end of the 'install' when some changes like the old root method required. But then it may mess if/when you pop in another SIM card
 

pikolush

Member
Sep 15, 2011
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I tried the method several times. But everytime flashfire finishes installing the rom, the phone reboots in a bootloop. I can't even get on recovery mode, only download mode. Why does it happen? I have a spint S7 G930P on Android Oreo 8.0, Rev0. 6 and baseband version G930PVPU6CRE7. Can anybody help me?
 
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lvpre

Senior Member
Jun 23, 2011
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I tried the method several times. But everytime flashfire finishes installing the rom, the phone reboots in a bootloop. I can't even get on recovery mode, only download mode. Why does it happen? I have a spint S7 G930P on Android Oreo 8.0, Rev0. 6 and baseband version G930PVPU6CRE7. Can anybody help me?
Yeah, this method has some issues and bugs. I did the nougat version of this. Android worked great, but it wouldn't connect to the Sprint network. What type of bootloop are you receiving? Some people have complained of a sim card provision one using Sprint
 

pikolush

Member
Sep 15, 2011
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Yeah, this method has some issues and bugs. I did the nougat version of this. Android worked great, but it wouldn't connect to the Sprint network. What type of bootloop are you receiving? Some people have complained of a sim card provision one using Sprint
Just after i flash the zip file with G930U firmware with flashfire, i have bootloops. I can't even get on recovery mode. Only download mode. I am overseas and i don't use sprint sim card on the phone.
 

Avantlord

New member
Sep 14, 2018
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I have a G930P with Binary 6, went to the entire process and succeeded to flash BL 4 Firmware U, even the Model of the phone changed to G930U in the settings menu but it didn't recognize my sim card, it said "No Sim Card" :v I tried killing Knox and sprint daemons with ADB shell but no success to get my sim cards to work, I'm outside US without access to a sprint sim card :/ ##3424# ##3666633# and *#0808# already tried once in U Firmware failing again... Is any one running smoth on this method on AT&T or Verizon?