warning
This method will not work anymore if you upgraded to QI5 new bootloader/baseband because it's locked to binery 5 it's impossible to downgrade and dev firmware will fail in odin.
This method will only works with older bootloaders only before QI5
I have successfully downgraded to kitkat after pull my hair for days and unlocked for any sim worldwide if you guys like kitkat like me and wanna unlock your sim network follow these institutions.
1,download developer kitkat firmware and flash via odin 3.10 this firmware is for developers without user apps and its empty but good thing is it will let us downgrade to kitkat bootloader no matter you are on 5.0,5.1 1,6.0.1 just flash.
2,after flash developer firmware dont let phone boot immediately go to download mode and flash twrp recovery.
3,after flash twrp recovery flash sprintxnoteRC2 kitkat rom this will boot flawlessly to kitkat.
4,if you like to try other n910p based kitkat roms go to twrp and backup (boot) thats your kernel of sprint xnote RC2 rom before flash any kitkat rom cuz i donno somehow kernel of sprint xnoteRC2 let boot every rom successfully without any errors.just after flash any rom immediately go to twrp restore and restore (boot) kernel that you made earlier from sprintxnoteRC2 rom.
4,FOR UNLOCKING download SSU APK this will work with kitkat if your phone says INVALID SIM CARD just install as normal APK and open it will ask for root permision PRESS GRANT and unlock then reboot if still your phone dosent get signal bars then go to dialer and dial ##72786# and press YES it will reboot automatically your phone and hopefully you will have signal on gsm sim. if SSU apk method does not work download gt galaxy tools apk and unlock.grant root permission to galaxy tools and open app go down and you'll see UICC unlock just hit and restart device . also you can unlock tethering hotspot permanently from galaxy tools . THATS ALL. I AM SHARING YOU GUYS MY EXPERIENCE I HAVE TESTED THIS METHOD ON MY DEVICE AND i HAVE SUCCESSFULLY UNLOCED MY N910P AND DOWNGRADED FROM 6.0.1 TO KITKAT
DISCLAIMER:- TRY AT YOUR OWN RISK PLEASE YOU MUST BACK UP YOUR EFS AND ANY IMPORTANT DATA BEFORE DO ANYTHING FOLLOW INSTRUCTIONS CAREFULLY AS I HAVE BEEN MENTIONED IN THREAD AND IF ANY QUESTIONS FEEL FREE TO ASK ME. HIT THANKS IF THIS THREAD IS USEFUL FOR YOU.
1. Download developer fimware link.
https://androidfilehost.com/?fid=457095661767098816
2. Download TWRP recovery link
https://mega.nz/#!HUN1nILZ!_7KP4H223nlNAbwx6EIjLLkPxqKXNg_yxjptDbYPwas
3. Download sprintxnoteRC2 rom link
https://mega.nz/#!jdsmEAKa!FH3RvThxgDj_gnxCDgrEAyZi-n3R19RcNmBGJi3Ly7M
4. Download SSU APK LINK
https://mega.nz/#!qVtgzTxK!409cHS7_VuerOqrKg4AnsrskO4nJDbhAtCyf8umaEE8
5. DOWNLOAD GALAXY TOOLS APK LINK
https://mega.nz/#!bElkjZzI!OTtzYjYxsUM8Sf-GP71rHilIXNpWCLIitEgkkx2uJZ8
DOWNLOAD NADIA 4.4 4 CUSTOM KERNEL WORKS ON ALL SNAPDRAGON MODELS N910F/P/T/V
https://mega.nz/#!accnkb6B!f_wdM79WXZ2UYy2El87DXYctihB40MBjV4imBKlhoDo
GUYS I HAVE ALSO FOUND A WAY TO DOWNGRADE N910T TMOBILE NOTE 4 TO KITKAT CHECK THR POST LINK BELOW.
http://forum.xda-developers.com/not...ws-want-to-downgrade-to-4-4-4-kitkat-t3447773
I MADE THIS THREAD SPECIALLY FOR NETWORK LOCKED N910P USERS TO TEMPORORY DOWNGRADE TO UNLOCK NETWORK. BUT IF YOU END UP USING KITKAT ROMS THE FINGERPRINT SENSOR WILL NOT WORK.
FIX FOR FINGERPRINT
Flash og5 5.1.1 bootloader only along with with Nadia 4.4.4 kernel flash in twrp and you get everything working with any kitkat rom.
Or flash 5.1.1 6.0.1 stock firmware the fingerprint will work fine and unlocking will stick permanently
HiT THANKS:good::good::good:
Can I go back to a non-rooted, stock KitKat ROM without tripping KNOX?
Trex888 said:
I have successfully downgraded to kitkat after pull my hair for days and unlocked for any sim worldwide if you guys like kitkat like me and wanna unlock your sim network follow these institutions.
Click to expand...
Click to collapse
Can you Odin any firmware after this?
If so, this is a game changer for kitkat lovers.
You can upgrade again to 5.1.1 & 6.0.1 n910p firmware but you cannot flash n910p official kitkat it will simply fail in odin.you can flash any kitkat n910p roms in twrp recovery with diffrent kernels also i have tested deodexed 4.4.4 n910p based rom and it works flawlessly with custom kernel .i have tested everything every firmware but sadly 4.4.4 n910p fail in odin .
Which kernel is it in that SprintxnoteRC2 rom? Any other kernel working with KitKat?
Ael kernel.
shadowcliffs said:
Which kernel is it in that SprintxnoteRC2 rom? Any other kernel working with KitKat?
Click to expand...
Click to collapse
Ael kernel
how long has this kitkat developer firmware been leaked?
and can't you downgrade to official kitkat from the oldest 5.0.1? most of the "first new OS upgrade" won't block downgrades
6.0.1 --> 4.4.4 dev --> oldest 5.0.1 --> 4.4.4 official
edit:
also, does the dev firmware format internalsd like PB5?
Does the unlocking persist when upgrading to newer firmware?
Returned from PG1 to NK2 ( BoBCaTROM v2.0) following OP's tips. Since the purpose of flashing the dev tar is to update bootloader, I deleted the system file from the tar ball and ended up with a smaller file about 130 MB
download here.
From the attached screenshot we can see, the modem is AOF1, the kernel is AEL 5.5 (which is not shown in the screenshot).
Sterist said:
how long has this kitkat developer firmware been leaked?
and can't you downgrade to official kitkat from the oldest 5.0.1? most of the "first new OS upgrade" won't block downgrades
6.0.1 --> 4.4.4 dev --> oldest 5.0.1 --> 4.4.4 official
edit:
also, does the dev firmware format internalsd like PB5?
Click to expand...
Click to collapse
This dev firmware i found accidently from a Chinese website they use to refurbish and spoof usa models to international models and resale again . I tried to flash official 4.4.4 but it fails in odin.its something to do with this developer firmware that it can let us downgrade to 4.4.4 .anyway you can use this dev firmware to downgrade and flash kitkat custom roms and kernels.
Binary invalid
Trex888 said:
This dev firmware i found accidently from a Chinese website they use to refurbish and spoof usa models to international models and resale again . I tried to flash official 4.4.4 but it fails in odin.its something to do with this developer firmware that it can let us downgrade to 4.4.4 .anyway you can use this dev firmware to downgrade and flash kitkat custom roms and kernels.
Click to expand...
Click to collapse
Dev firmware does not work. Tried downloading with chrome, firefox,opera and straight to the mega app. Odin shows this error message: md5 invalid! Binary is invalid. Have try to download the file 12 time, no luck. Any suggestions or help?.
MexiMax said:
Dev firmware does not work. Tried downloading with chrome, firefox,opera and straight to the mega app. Odin shows this error message: md5 invalid! Binary is invalid. Have try to download the file 12 time, no luck. Any suggestions or help?.
Click to expand...
Click to collapse
Try this one
Thanks. Downloading now, will let you know if it works. Thanks again.
Sterist said:
how long has this kitkat developer firmware been leaked?
and can't you downgrade to official kitkat from the oldest 5.0.1? most of the "first new OS upgrade" won't block downgrades
6.0.1 --> 4.4.4 dev --> oldest 5.0.1 --> 4.4.4 official
edit:
also, does the dev firmware format internalsd like PB5?
Click to expand...
Click to collapse
4.4.4 dev --> oldest 5.0.1 failed : sw rev check fail
Originally Posted by DjeMBeY
SW REV. CHECK FAIL : fused:2, Binary: 1 is when you try to downgrade aboot.mbn (bootloader) or try to flash incorrect system/csc etc..
Click to expand...
Click to collapse
Try this one
Thanks. It did work. Really appreciated your help.
shadowcliffs said:
Try this one
Click to expand...
Click to collapse
The file size is just 120.2 MB??
robinhood1808 said:
The file size is just 120.2 MB??
Click to expand...
Click to collapse
With system partition removed as mentioned in my earlier post. After all, bootloader is all you need.
shadowcliffs said:
With system partition removed as mentioned in my earlier post. After all, bootloader is all you need.
Click to expand...
Click to collapse
Hmmm... After flashing this firmware, without rebooting and going into download mode, one has to flash TWRP & then any Kit-Kat based custom ROM. Got it! :good:
MexiMax said:
Dev firmware does not work. Tried downloading with chrome, firefox,opera and straight to the mega app. Odin shows this error message: md5 invalid! Binary is invalid. Have try to download the file 12 time, no luck. Any suggestions or help?.
Click to expand...
Click to collapse
download file by mega app without pause or stop while downloading.
robinhood1808 said:
Hmmm... After flashing this firmware, without rebooting and going into download mode, one has to flash TWRP & then any Kit-Kat based custom ROM. Got it! :good:
Click to expand...
Click to collapse
flash kitkat rom with ael or any custom kernel otherwise it won't boot.
Hey guys, I recently bought an Zenfone 3 but with the first ever firmware. I was also successful in unlocking the bootloader and rooting it. Now, nougat is released and i cant receive ota. since i wanna update to nougat, do i have to flash the updates in order or is it okay to skip to the latest firmware then update to nougat? and also how do i flash it? do i need to wipe and stuff like that? I've already uninstalled xposed btw. Thank you for any help
Fabionos said:
Hey guys, I recently bought an Zenfone 3 but with the first ever firmware. I was also successful in unlocking the bootloader and rooting it. Now, nougat is released and i cant receive ota. since i wanna update to nougat, do i have to flash the updates in order or is it okay to skip to the latest firmware then update to nougat? and also how do i flash it? do i need to wipe and stuff like that? I've already uninstalled xposed btw. Thank you for any help
Click to expand...
Click to collapse
Install stock recovery back, then flash stock nougat zip.
no wipes needed.
you can download the ota from asus support site.
Hello im currently using the u version of 935 firmware 7.0 and was wanting to know if I can downgrade back to marshmallow? I want xposed and can't get it to work with nougat so any info would be great thanks
AFAIK, it's not possible to downgrade with a locked bootloader.
the Doctor said:
AFAIK, it's not possible to downgrade with a locked bootloader.
Click to expand...
Click to collapse
unlock BL can do it?
loveuhp said:
unlock BL can do it?
Click to expand...
Click to collapse
Unless you have a Chinese variant, you cannot unlocked Snapdragon bootloaders on the S7.
I've went back and forth between Nougat-MM several times. You can't go back earlier than PH1 due to the bootloader being locked, but that gives you the choice of 2 MM firmwares, PH1 and PI3.
Can anyone point me to directions on how to roll back to Marshmallow?
frankie161 said:
Can anyone point me to directions on how to roll back to Marshmallow?
Click to expand...
Click to collapse
https://forum.xda-developers.com/verizon-s7-edge/how-to/firmware-verizon-s7-edge-t3344092
That has the resources you are looking for. Just grab either the PH1 or PI3 firmware and then do a normal Odin flash. You will be downgraded to stock MM.
joshua23 said:
Hello im currently using the u version of 935 firmware 7.0 and was wanting to know if I can downgrade back to marshmallow? I want xposed and can't get it to work with nougat so any info would be great thanks
Click to expand...
Click to collapse
i just did this in my s7 edge for verizon. Tried to flash the unlocked firmware and it failed. It woudlnt' boot afterwards. (it was first on 6.0.1). I then accidentally flashed a nougat stock rom. After this, I flashed a verizon 6.x.x fimrware and then the tmobile firmware. ALl through ODIN of course. I thikn as long as it works through ODIN, you are fine. It may take a lot of trial and error though
Kindly guide me someone i want to downgrade to marshmallow on SM G935A .. i have tried the apk1 rom but failed to flash please help...
You'll get used to Oreo, it's pretty good so far.
Assuming it's still on bootloader 4, you can downgrade to any firmware build using BL4. I don't recall off the top of my head if there was ever a MM build that used BL4, but that's the restriction. Anything else will either not flash or brick your device. You will need a modded version of ODIN to do the downgrade.
why do you want to downgrade?
I am trying to downgrade my firmware from 8.0 oreo crf5 to 7.0 nougat bql1 and when i attempt to flash the firmware i get an error on odin and a fuse 5 binary 2 error on the phone, can some one help please?
I have a SM-G950U Snapdragon variant.
You are attempting to flash an old BOOTLOADER to your phone. That's what the error means.
Starting Android Oreo, Once you flash a new version of bootloader, you are only then allowed to flash same version or higher of it. Downgrading is not allowed.
Can you use N with the new BL?