Mega won't boot / stuck on Odin mode or Download mode - Samsung Galaxy Mega

I have a SGH-i527 that got the 4.4.2 OTA update last night. I'm not sure what I did, but I think I tried to flash the 4.2.2 via Odin when I was encountering problems with Kit Kat. Now when trying to boot, I am stuck on the "Firmware upgrade encountered an issue. Please select recovery mode in Kies & try again." screen.
I have tried to get Kies to go through emergency recovery but the phone never shows up there. And obviously, trying the flash the 4.2.2 firmware in odin will not work. So I am stuck. Any thoughts?

If you did flash the JB ROM after the KitKat update, you will have to flash the KitKat firmware since you cannot downgrade the bootloader and you have probably voided the warranty. Flash the KitKat update for the specific model and DO NOT try to root, flash custom recovery or downgrade to Jellybean since it will trip the Knox boot loader and you will have a brick. Hope this helps

To my understanding, there is not a KK stock rom that I can flash (at least for the i527). And since I can't flash back to 4.2.2, it looks like I'm stuck.

Why flashing 4.2.2 by Odin did not change your situation? Maybe try to flash another ROM?

Related

[Q] Unlocking bootloader by flashing back to 4.1

So this is probably far fetched and impossible but I got stuck flashing the official firmware from beanstown for a 4.3 rom. I couldn't get the rom to function properly and so i restored my backup via twrp. I unchecked the boot and modem options because i didn't think they were necessary. Now I had a soft brick and eventually led me back to root66 4.1.1. If i were to flash the 4.1.2 VRAMC3 would i be able to reroot and unlock my bootloader via casual, or is it stuck with a 4.3 bootloader?
Note: when i try to boot into recovery, It's the android one and I can't seem to use casual on this rom to install a new bootloader.
yeah u can go back to 4.1.1 or 4.1.2 and reunlock and root your phone as long as u didnt take the official 4.3 ota.

Bricked?? Stuck at samsung logo screen for 1 sec then reboots.

Okay, So the title pretty much says it all. I am stuck at the Samsung boot logo (not bootanimation) and it only shows for about 1 second then reboots and continues.
This started after I tried to flash a rom and it messed up and I tried to flash via odin. I was on MJ9 and and got a bootloop so I did the odin thing. I've used odin before but it is not working well for me now.
I am able to boot into download mode but TWRP no longer works. I was able to flash via odin and it says success but the phone does not reboot like it should.
I have purchased a galaxy nexus on the cheap to hold me over until the nexus 6 is out but if I can fix my note, I would like to.
I know there were other threads about this same issue but it seems that they are all on a different version of the note, or on a s3 or something. Not to mention, I don't see anything that I could try without asking for some help on here. Can someone maybe point me in the direction of the factory firmware (preferably a rootable or already rooted version) that I can flash that will play well with my note.
Thanks guys!!!
amberkalvin said:
Okay, So the title pretty much says it all. I am stuck at the Samsung boot logo (not bootanimation) and it only shows for about 1 second then reboots and continues.
This started after I tried to flash a rom and it messed up and I tried to flash via odin. I was on MJ9 and and got a bootloop so I did the odin thing. I've used odin before but it is not working well for me now.
I am able to boot into download mode but TWRP no longer works. I was able to flash via odin and it says success but the phone does not reboot like it should.
Click to expand...
Click to collapse
Before you tried to flash a custom ROM and things went wonky...were you on Verizon's factory stock 4.3 MJ9 firmware, or on Beanstown106’s modified 4.3 MJ9 with TWRP installed?
Does the phone still boot into stock recovery? If so, you may be able to fix the phone by doing a factory reset.
amberkalvin said:
Can someone maybe point me in the direction of the factory firmware (preferably a rootable or already rooted version) that I can flash that will play well with my note.
Click to expand...
Click to collapse
If you were on Verizon's factory stock 4.3 MJ9, then you won't be able to Odin flash back to 4.1.2 or any earlier Android version because the bootloader has been locked down tight on 4.3 (and 4.4.2) with no current do it yourself method to unlock for those newer versions. You would want to restore the phone back to factory stock 4.3 though, if that's what version you were on before your phone got messed up. You can root the phone on 4.3 with saferoot, then use safestrap recovery to flash some custom Touchwiz ROM's.
If you were on the 4.1.2 based bootloader, (but running Beanstown106’s MJ9 firmware and TWRP), then you would want to restore your phone back to factory stock 4.1.2 and then root and unlock the bootloader again with CASUAL. This would give you the most flexibility with flashing custom kernels, ROM's, etc...
Check out Section 1b in Droidstyle's restore guide at this link: http://forum.xda-developers.com/showthread.php?p=34891181. The guide has download links for the files you'll need to restore the phone back to the correct build version.

TMOB Cant boot after flashing andriod 5.0 via odin

Hi guys, as topic says i cant boot after flashing firmware with odin. everything installs perfectly in odin it says pass! ad below in details it says success1/fail0. But when odin reboots system its stuck at booting recovery.... And never go further into system. I have downloaded 5.0 from sammobile and http://www.galaxys5update.com/galaxy-s5-stock-firmware/ but samething. I flashed it 2 times, 1 time from each source. Also after flashing i cannot enter into recovery. So i flashed the good old kitkat for now... can anyone explain why i cant boot after flashing rom with odin, does it has something to do with bootloaer. also i did not update through software update thingy/kies caue it says you cant downgrade but i see many article in internet also on xda that you can with odin. whats the truth.

Firmware Upgrade encountered an issue

Had my phone rooted with 4.4.4
Wanted to upgrade to 5.0. Went with Stock firmware
I try to "reroot" install CWM with ODIN -Pass
Used CF Auto Root - Failed
I try to get into the recovery screen and I get an error that say s Firmware Upgrade encountered an issue.. Use Kies to restore.
Problem here is Kies will not recognize my S/N and in talking to their support they claim kies can't be used after a phone has been rooted.
Just a side note I was having problems before I upgraded the ROM woudl get that error saying SEANDROID not enforcing. I was hoping the new firmware would resolve this. I don't get this error anymore but can't get into recovery either.
Thoughts?
chewyma said:
Had my phone rooted with 4.4.4
Wanted to upgrade to 5.0. Went with Stock firmware
I try to "reroot" install CWM with ODIN -Pass
Used CF Auto Root - Failed
I try to get into the recovery screen and I get an error that say s Firmware Upgrade encountered an issue.. Use Kies to restore.
Problem here is Kies will not recognize my S/N and in talking to their support they claim kies can't be used after a phone has been rooted.
Just a side note I was having problems before I upgraded the ROM woudl get that error saying SEANDROID not enforcing. I was hoping the new firmware would resolve this. I don't get this error anymore but can't get into recovery either.
Thoughts?
Click to expand...
Click to collapse
If you can get into Download Mode you can Odin 5.0
May is Motorcycle Awareness Month Sent from my Galaxy Note 3
I did that, I was able to get 5.0 running..
So I installed CWM with Odin and that installed.
Used Odin for CF Root. it failed..
Can't get into recovery either as if I do it goes that error then I"m stuck there. Seems like the only way I can get out of it is to reinstall 5.0 fully via Odin then I'm back in business.
chewyma said:
I did that, I was able to get 5.0 running..
So I installed CWM with Odin and that installed.
Used Odin for CF Root. it failed..
Can't get into recovery either as if I do it goes that error then I"m stuck there. Seems like the only way I can get out of it is to reinstall 5.0 fully via Odin then I'm back in business.
Click to expand...
Click to collapse
I was under the impression that you needed to root first, Then install a recovery? maybe it doesn't make a difference...
but I would try Odin the stock tar,
then Odin cf auto root
then Odin twrp
worked perfectly for me.
(also, I don't ever use kies for anything. ever.)

EDIT: Can't update from 5.0

Hello everyone, I am trying to go back to stock rom/firmware on my T-Mobile Galaxy S5 (G900T)
I had a recovery, but I misplaced the SD Card that had it, so now I am trying to use Odin to do this.
I downloaded Odin and the firmware from this link: http://forum.xda-developers.com/tmob...mware-t3042400
but no matter, which Odin I use, or which Firmware I try, it keeps failing. What can I do?
Also, now when I try to boot into recovery it says ''Firmware upgrade encountered a problem, please select recovery mode in Kies and try again''
EDIT:
After many attempts of flashing, I was successfull getting Android 5.0 back on to my phone. It turns on and works perfectly, but now I have run into a different problem.
T-Mobile keeps pushing to update to 5.1 / 5.1.1. but everytime I try, it downloads, boots to recovery, starts installing and fails. What can I do about this?

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