Kitkat on Lollipop bootloader - Verizon Galaxy S 5 Q&A, Help & Troubleshooting

Okay so I followed the Lollipop Root guide perfectly, and I know I did, however the SS flash kept bricking my phone so I just gave up and took the official OTA.
Can I downgrade my phone back to Kitkat, even though the Bootloader is now updated to Lollipop? Or will I have to wait for someone to find a new exploit in Lollipop?

No wait... just check the Q & A sticky

Q&A doesnt talk about updated bootloaders and out-of-date kernels working together.

Yes. I bought my S5 off a guy on FB. Had 5.0 on it. Downgraded it back to MK2 444 with Odin

Related

Statying stock and upgrading from MK2 to OC4

I just purchased an unlocked stock I337 S4 from Ebay that I intend to send to the Phillipines for my fiancee. It currently has MK2 firmware. I would like to upgrade it to OC4 before I send it overseas. I tried using ODIN to flash it to OC4, but it fails.
I managed to root it using Saferoot, and that worked except now it has a lock icon and says CUSTOM on the boot screen, but it still boots fine.
Anyway, I have been reading through this forum for about 3 hours now, and have found no sensible way to update this phone. Even if I could just update it to 4.4.4 I would be happy. Do I have to upgrade it step by step through all the firmware updates? Do I really need to have Safestrap installed to do a stock upgrade from a stock ROM?
Any links that could be provided to make this an easy process would be most appreciated..
You're so close. http://forum.xda-developers.com/showthread.php?t=2616221
Snapping along on stock rooted 0C4 I337, wishing for some good up to date lollipop ROM's to throw into flashfire

[N910F] Downgrade from POF2 to ANK5?

Is it possible to downgrade the N910F from Lollipop (POF2) to KitKat (ANK5)?
YES, IT IS POSSIBLE.
Before yesterday I've never used KitKat on my Note4.. When I bought the phone I had no time to try it (KitKat) because I've straight rooted it and flashed a Lollipop based ROM.
Then yesterday I wanted to try a KitKat based ROM and I've lost about 30/40min looking in the forum for the answer to the question Is it possible to downgrade the N910F from Lollipop (POF2 or whatever) to KitKat (ANK5)?
I could not find a proper answer.. there was this BOF5 bootloader can not be downgraded but it was always in a "strange contest" and it did not convinced me.. after 30/40min I said ***k *t and I just performed a full wipe from TWRP, flashed ANK5 modem and bootloader via ODIN, and installed the KitKat ROM from TWRP.
Sorry for the Question/Answer but this thread may will help someone to save time.
P.S.: My KitKat adventure lasted only 10min... It looked ugly to my eyes! Went back on POF2 and now trying out AICP
_mone said:
Is it possible to downgrade the N910F from Lollipop (POF2) to KitKat (ANK5)?
YES, IT IS POSSIBLE.
Before yesterday I've never used KitKat on my Note4.. When I bought the phone I had no time to try it (KitKat) because I've straight rooted it and flashed a Lollipop based ROM.
Then yesterday I wanted to try a KitKat based ROM and I've lost about 30/40min looking in the forum for the answer to the question Is it possible to downgrade the N910F from Lollipop (POF2 or whatever) to KitKat (ANK5)?
I could not find a proper answer.. there was this BOF5 bootloader can not be downgraded but it was always in a "strange contest" and it did not convinced me.. after 30/40min I said ***k *t and I just performed a full wipe from TWRP, flashed ANK5 modem and bootloader via ODIN, and installed the KitKat ROM from TWRP.
Sorry for the Question/Answer but this thread may will help someone to save time.
P.S.: My KitKat adventure lasted only 10min... It looked ugly to my eyes! Went back on POF2 and now trying out AICP
Click to expand...
Click to collapse
When you flashed that lollipop-based rom, that was a custom rom I assume? Did it contain a bootloader? Maybe you were still on the KitKat bootloader.
GidiK said:
When you flashed that lollipop-based rom, that was a custom rom I assume? Did it contain a bootloader? Maybe you were still on the KitKat bootloader.
Click to expand...
Click to collapse
Yes, it was a custom ROM. No, it didn't contain bootloader. No, I wasn't on the KitKat bootloader, for sure my bootloader was POF2. Trust me if I tell you that before the KitKat ROM I've flashed too many Lollipop ROMs with many Lollipop bootloaders.
I'm trying to do this but i fail in every action at odin with this SW rev. check fail. device 2 binary 1 in my SM-N910C and in odin its fail... ( i gets this after recovering my phone at kies after a bootloop )
i have a note 4 n910c with L.P 5.1.1 how a can downgrade to K.K or 5.01 L.P always fail when i try with odin. help please

[Q] Dirty flash 4.4.4 NJ5 to Lollipop?

My wife and I just purchased the AT&T US version Galaxy S4 I337 brand new in box with NJ5 4.4.4 firmware stock everything. No rooting nothing. Over the air updates brought in a 485 megabyte update three times. The first two failed, while the third attempt apparently succeeded.
I have checked updates twice since and it states "Current." In the "about phone" section it lists "Official" now.
I am EXTREMELY familiar with flashing custom and stock roms to my T-Mobile SGH-M919. I have downloaded the AT&T 5.0 Rom. Can I just dirty flash with Odin? Does the phone's locked bootloader prevent the Odin flash? Any tips or hints on this would be great.
I downgraded my T-mobile S4 to 4.4.2 from 4.4.4 with ease. With the AT&T be just as easy with the 4.4.4 to 5.0.1 with Lollipop?
cheers for any pointers or thoughts.
You probably purchased the phone with NJ4 firmware, and when you ran the OTA update, it upgraded you to NJ5. This is a security update which is believed to respond to the stagefright bug. Since the security update became available about a week ago, the OTA update from 4.4.4 to 5.0.1 has been replaced with the security update, so that those on 4.4.4 stay on 4.4.4, and those on 5.0.1 get the update from OC3 to OC4.
It is never good practice to dirty flash, and is impossible when changing base. Please read the various guides available in the general forum for guidance on how to proceed. Or if you are patient, maybe the OTA from 4.4.4 to 5.0.1 will be reactivated soon, and you can upgrade the phone that way.

[I9500] Downgrade 6.0.1 to 4.4.2

Hello all, quick question
I have an S4 I9500 running GearCM13 (6.0.1) and I want to go back to stock 4.4.2, would following this guide do the trick or is it no longer possible to downgrade?
If this has already been discussed, a link is appreciated as I've searched and found nothing conclusive.
Thanks
It depends on your bootloader. If you never upgraded the bootloader from 4.4.2 you should be able to go back to stock rather easily. You may be able to go back even with an upgraded bootloader, since both the 5.0.1 bootloader and 4.4.2 bootloaders have Knox. You'll just have to try the guide.
Strephon Alkhalikoi said:
It depends on your bootloader. If you never upgraded the bootloader from 4.4.2 you should be able to go back to stock rather easily. You may be able to go back even with an upgraded bootloader, since both the 5.0.1 bootloader and 4.4.2 bootloaders have Knox. You'll just have to try the guide.
Click to expand...
Click to collapse
Thanks, that's the info I needed.
To summarize the whole situation which led me to want to downgrade: I was on GEARCM13 and battery drain was too much to handle so I wanted to go back to a KK 4.4.2 rom (Ozcan) but then I read about Infernus Rom (Based 5.1.1 Ale95 Note Port) and went that way. Strephon's info helped me notice I didnt have to downgrade anything since I have a 5.0.1 bootloader.
Kinda convoluted response, if anyone wants further details, please pm.

Can you downgrade directly from marshmallow to kit Kat?

I'm on Phoenix rom on 6.0. 1 and I'm sick of the weird path name it gives the external SD card. It messes with link2sd and my Manga Reader. I was wondering if I can simply flash a kit Kat rom on miui without ruining anything...
no
So I'll have to go back to stock first via Odin?
raylgo said:
So I'll have to go back to stock first via Odin?
Click to expand...
Click to collapse
you cant do that either. Once you progress past 5.0, youre stuck
I directly downgraded to 4.4 with my G900W8. However, you need to be careful with which version you are going to flash. For example, when I flashed any other 4.4 firmware than NCG (Which is the first version of 4.4 released for G900W8), I faced bootloop.
panda6024 said:
I directly downgraded to 4.4 with my G900W8. However, you need to be careful with which version you are going to flash. For example, when I flashed any other 4.4 firmware than NCG (Which is the first version of 4.4 released for G900W8), I faced bootloop.
Click to expand...
Click to collapse
there is a physical fuse that gets tripped in the S5 once you go past 5.0 that is there to no allow you to go back. Not sure if you were on a 4.4 bootloader that allowed you to do this or what, but trying to flash back to 4.4 after being on a 5.0 baseband is very ill advised
I don't think you can down grade to kit kat, but you can go from marshmallow to lollipop. I just did it last weekend. Check this...https://forum.xda-developers.com/verizon-galaxy-s5/general/root-method-og5-ok3-t3290370
I hope it helps you.
Actually i can downgrade anytime from MM to LP or LP to KK
but i didnt tried MM to KK yet.... tried it many times it works.. unlocked G900F
Edit: im talking about stock rom btw (from sammobile)
dotgeo said:
Actually i can downgrade anytime from MM to LP or LP to KK
but i didnt tried MM to KK yet.... tried it many times it works.. unlocked G900F
Edit: im talking about stock rom btw (from sammobile)
Click to expand...
Click to collapse
then you dont have a MM bootloader. I just re-read some posts that confirm that the phone locks to 5.0 once you get that bootloader. Its not possible to go back, and it doesnt matter if you have the G900F or not
youdoofus said:
there is a physical fuse that gets tripped in the S5 once you go past 5.0 that is there to no allow you to go back. Not sure if you were on a 4.4 bootloader that allowed you to do this or what, but trying to flash back to 4.4 after being on a 5.0 baseband is very ill advised
Click to expand...
Click to collapse
Then if there is a physical fuse, why was I able to downgrade from MM to KK? One difference when I downgraded from MM to KK NCG was that "Powered by Android" logo was changed to old style. I think NCG build of KitKat changed bootloader from MM one to KK one. Baseband wise, I also flashed KK baseband and it worked very well. It might be different on G900F but with my G900W8 I could go back to KK.
panda6024 said:
Then if there is a physical fuse, why was I able to downgrade from MM to KK? One difference when I downgraded from MM to KK NCG was that "Powered by Android" logo was changed to old style. I think NCG build of KitKat changed bootloader from MM one to KK one. Baseband wise, I also flashed KK baseband and it worked very well. It might be different on G900F but with my G900W8 I could go back to KK.
Click to expand...
Click to collapse
not sure, but ive had my G900P for 2 years 10 months and have been constantly on XDA since my OG evo back in the day (the one with the kickstand) and everything ive ever read saya that once you go past 5.0, you cant go back. Not sure what you have going on there, but there are tons of posts going back several years stating exactly this
Of course you can downgrade to kk.
Just download the kk firmwafe. Pull out battery for 5 sec. Then flash trough odin. Did it mant times and no problem with that.
i did that on my galaxy s5 and it works

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