I have tried going from PB1 rooted, with dev-mod bootloader, to PF4 rooted rom. Tried both FF and Safestrap, and it bricks every time. They brick differently, but they both brick the phone.
It can't be a true brick or you wouldn't be able to try again. If your phone is hanging on the Samsung logo or Verizon boot animation, then you may not have wiped your data partition. If you are coming from a LP build, meaning PB1 or earlier, you will need to wipe data because MM handles data differently. I would also recommend flashing the ROM in TWRP.
I've completely wiped my phone, went back to stock OK3 Rom and tried again. 6 times already. Tried installing it through TWRP also. No luck.
Which PF4 ROM are you trying to load?
Related
Anyone have a guide on how to roll back to KK. I tried simply flashing the Stock KK rom but it stalls a Samsung logo. I think its due to the Bootloader which I updated to BOC3 when I installed Lollipop. I can't find the old Bootloader.
RochiWizz said:
Anyone have a guide on how to roll back to KK. I tried simply flashing the Stock KK rom but it stalls a Samsung logo. I think its due to the Bootloader which I updated to BOC3 when I installed Lollipop. I can't find the old Bootloader.
Click to expand...
Click to collapse
Before you flash the KK rom, make sure to Wipe data/Factory reset in recovery, then flash the rom using ODIN, once the procedure is complete, return to recovery and wipe data one more time. This should fix the issue and your phone will boot normally.
RochiWizz said:
Anyone have a guide on how to roll back to KK. I tried simply flashing the Stock KK rom but it stalls a Samsung logo. I think its due to the Bootloader which I updated to BOC3 when I installed Lollipop. I can't find the old Bootloader.
Click to expand...
Click to collapse
I had the same after flashing KitKat and then wiping cache. I had to factory reset from recovery for it to boot normally.
Currently lollipop N910c .BOC5
thinking of going back to kit kat.have not tried because it updated to lollipop immediate when purchased.
Anyone who did that.. did you check knox 0x0 ???
Flashing stock firmware through Odin will not trigger Knox 0x1, but keep in mind you'll have to factory reset your device.
Flashed back to KK
I have got a UK N910F and flashed a German ROM this ROM literally ate my battery, after reading this thread I wiped the phone and flashed KK and that worked, prior to this I tried to revert to KK (when I was on 5.0.1) and I could not revert back as I was stuck on boot loop..............Many Thanks
Hello all,
I am looking for some advice, on getting my AT&T Samsung Galaxy S4 working again. I will keep this as short as I can:
I originally had 4.3 rooted with the MK2 firmware, and used Odin to flash my phone to 4.4 NB1, using the ROM in the Guide to Stock/Updating/Rooting thread.
This worked fine, and I was able to boot and use the phone, but my root access was gone.
I tried Towelroot, Kingo, etc... to no success.
I then followed http://forum.xda-developers.com/showthread.php?t=2692825 thread to semi downgrade to MK2 and was able to obtain root again. I also installed Safestrap recovery.
At this point I could not successfully boot back into the phone, though I could access Safestrap.
I flashed the stock kernel for NB1 again, but still could not boot.
I then flashed the stock NB1 ROM again.
After this, the phone would show the android icon and a progress bar, then restart, reach the Samsung load screen, start the AT&T load screen and then boot loop.
Once I reached this point, I could no longer access recovery, only download mode.
In my attempts since then. I've found if I stop the phone from ever getting to the Samsung load screen after flashing the stock ROM, I can then access recovery. As soon as I let it boot, I cannot access recovery.
I've flashed the stock ROM multiple times at this point, gotten into recovery and wiped the devices then rebooted multiple times.
I just don't know what else I can do.
Does anyone have any ideas? A place to look? Any help appreciated!
OK, so I recently upgraded to a lollipop ROM on my locked bootloader ATT I337. To get into safestrap now, I have to use NC1 flasher to temporarily flash the NC1 kernel, and then boot into SS, then flash the OC3 kernel to get back. PITA, but it worked. So I tried restoring a backup, and when I rebooted it didn't work (black screen, kept getting FC's of every app, couldn't actually do anything). I rebooted 3 times, after which it seems to be working. Weird. However, if this happens again, how do I get back to safestrap so that I can wipe and reinstall the lollipop ROM? Can I just flash the NC1 kernel via Heimdall/ODIN? If so, which file is it? When I was looking, it seemed like I needed to start from scratch with a full KK flashable package, then upgrade, downgrade, etc, etc.
nola mike said:
OK, so I recently upgraded to a lollipop ROM on my locked bootloader ATT I337. To get into safestrap now, I have to use NC1 flasher to temporarily flash the NC1 kernel, and then boot into SS, then flash the OC3 kernel to get back. PITA, but it worked. So I tried restoring a backup, and when I rebooted it didn't work (black screen, kept getting FC's of every app, couldn't actually do anything). I rebooted 3 times, after which it seems to be working. Weird. However, if this happens again, how do I get back to safestrap so that I can wipe and reinstall the lollipop ROM? Can I just flash the NC1 kernel via Heimdall/ODIN? If so, which file is it? When I was looking, it seemed like I needed to start from scratch with a full KK flashable package, then upgrade, downgrade, etc, etc.
Click to expand...
Click to collapse
Yep, you can flash NC1 kernel in AP slot in ODIN. I'm not sure about Heimdall as I haven't used it.
NC1 kernel: https://www.androidfilehost.com/?fid=23487008491965103
Thanks, hopefully won't have to try it
Just as a bit of an update. I did another safestrap restore, and again ended up booting into the same situation, with black screen, mult FC, etc. Figured out that to exit this, boot into the system bootloader, and from there choose "reboot". For whatever reason, it then boots normally.
have rooted s5 on 4.4.4 nk2. Have been trying to install custom roms via safestrap. Apparently i am missing a step. I wipe data, try to install twi5ted Lollipop on custom rom slot....blank screen for over 30 min after reboot, phone gets real hot, take battery out. Try to install on stock rom slot, reboot then get stuck in boot loop and keeps booting into system recovery. I then saw through my hours of searching to format instead of wipe....so i format then try to install, get stuck again, take battery out, get back to safestrap dash now when i try to wipe/format/or even restore my backup it says unable to mount system. When i click reboot system it says no OS installed. After reboot, my custom slot gets erased.
I was about to try an odin flash back to stock but some how was able to get my phone back to a system restore. Why can i not get anything installed? Do i have to have odin to do a custom rom install?????? i know every rom is different but wtf. I have seen multiple videos and threads of people flashing zip via safestrap and rebooting into new rom without flashing kernals via odin or safestrap after rom install.
Also...my phone will not let me download zip files (ex. cm12.1) says unable to create download folder....how close to F'in my phone up am i? I have successfully rooted all phones in the past...s5 is giving me hell!
I just tried installing rom after format, then flash nk2 kernel from odin, still gives boot loop....ive tried everything i have found..never this much problem with custom rom..
When you try to install twisted it needs lollipop firmware which is flashed on odin, and based on your statement it says you're on NK2, a kitkat firmware. Try flashing a stock ncg tar and rerouting, downloading apps, etc. on the phone to see if that works. Also, I noticed you mentioned a cm 12.1 zip not downloading which, while unrelated to your current problem, will cause a bootloop when flashed due to the locked bootloader on the S5, so it isn't a smart idea to even attempt an install.
mrjiggywiggy said:
When you try to install twisted it needs lollipop firmware which is flashed on odin, and based on your statement it says you're on NK2, a kitkat firmware. Try flashing a stock ncg tar and rerouting, downloading apps, etc. on the phone to see if that works. Also, I noticed you mentioned a cm 12.1 zip not downloading which, while unrelated to your current problem, will cause a bootloop when flashed due to the locked bootloader on the S5, so it isn't a smart idea to even attempt an install.
Click to expand...
Click to collapse
thanks, i will try fresh from start ncg. so you have to be on the current kernel that you are flashing a rom for, whether its CM, Twi5ted, Alliance...etc i need to be on rooted 5.0 kernel then flash rom via safestrap?
i was having problems downloading from internet on phone, not downloading rom if thats what you thought i meant. I just tried installing zip for CM 12 via safestrap and got same issue. Phone reboots, goes to black screen and eventually heats up like crazy. .... I just noticed, after my restore ...again... it says safestrap disabled in red on the boot screen, why is that? it says installed and tried reinstalling.
FIXED
So i flashed ncg from odin on the messed up phone and got messed up worse. Ended up getting stuck on first boot image of samsung android s5 boot screen. Finally found original stock firmare file and used odin to complete install stock os and got rid of root. Now back to normal... luckily i figured it out my self! thanks to the 100's who viewed and didnt help and thanks to mrjiggywiggy for giving me some input to help out!
I updated OTA from 4.4.2 to 5.1.1 and now when trying to downgrade back, I bricked it. I flashed the Downgrade_to_NCE.tar (realizing now that i shouldn't have) which ended in a FAIL in Odin. I tried flashing the firmware, still FAIL. When I flashed the OC4 Stock Partitions, it booted up, but got stuck at Samsung splash screen. Now i have tried all sorts of files, including the OneClick.exe and flashing the full firmware from this thread. still, nothing. I have to go on a trip this weekend and really don't want to have a useless phone.