Database Users

Install Recovery and CM on Locked I9500

Hi All,
I'm not sure if this is the right place to post this as I'm relatively new to posting on XDA. My girlfriend has a Galaxy S4 (I337) that I quickly and easily installed Cyanogenmod on. It's awesome and significantly better than TouchWiz. So, I bought an S4 off Ebay assuming it would be similar enough. It turns out this new S4 is an I9500 and before shipping it was updated to 4.3, which appears to lock the bootloader and prevent downgrading. I've tried Odin, Heimdall, ADB, Philz, Chainfire, Cofface, stock ROMs, etc with no luck. Today I did manage to root the phone and confirm root with TowelRoot. I'm wondering/hoping someone might have some resources to get CM on this thing. While I'd prefer not to brick it I am willing to take risks as I have a Razr (soft-bricked and unbricked) running CM and am relatively comfortable with computers/Linux.
I've been Googling and trying things for a month now and can't even find that much information on the locked bootloader. Any help would be greatly appreciated, thanks.
--
SL

The I9500 doesn't have a locked bootloader. You just can't downgrade from 4.3 to 4.2.2 with official roms. Same applies when you are running 4.4, then you also can't downgrade officially.
Just flash a custom recovery true Odin and flash away.
Why would you even want to downgrade? Are you sure you are picking the right files? You cant flash the files for the I337 on the I9500. So just go to the section for the I9500 roms and flash away.

Hi Lennyz1988,
Thanks for the quick reply. I don't specifically want to downgrade but that's the last option I've tried. Ultimately the goal is to put Cyanogenmod on the phone. When I attempt to upload any file via Odin I get "secure magiccode check fail : boot" (or fail : recovery) depending on what I'm flashing. All the reading I've done says that when these phones are updated to 4.3 a fix has been applied that stops Odin from working. Thus, I my last resort is/was to try and downgrade. As I said, I've been Googling for the last month and while few people have posted about this I have not found any solutions.
Hoping someone might have a solution or anything new to try that I haven't tried already, thanks again,
--
SL

Download the latest TWRP recovery:
http://techerrata.com/browse/twrp2/i9500
Fire it up in Odin under PDA. You need the .tar (DON'T EXTRACT IT).
If it fails:
- Different usb port
- Different cable
- Different pc
- Reinstall drivers
- Make sure Kies is not running the background.
Or you can use heimdall to flash it. Use the command line though:
heimdall flash --recovery nameoftherecovery.img (you need the .img instead of the .tar)

No luck there, Odin still fails with the same message. I have tried Heimdall on 2 different computers (4 different usb cables) and always get the libusb 12 error.
Since I have root access I figured I might be able to wipe the recovery partition from a terminal emulator. I copied recovery.img from the I9500 CWM to the internal sd card. I then went to /dev/block/msm_sdcc.1/by-name to figure out what partition is recovery, turns out its 21. I then did “dd if=/sdcard/recovery.img of=/dev/block/mmcblk0p21”. I then booted into recovery and it just hung up. I had previously found a stock recovery partition so I flashed that via Odin (the only file I have found that works flashing via Odin). I could then boot back into the normal recovery. I then tried flashing both recovery and cache with the CF Auto files (cache is partition 18). Same result, it just hangs when trying to boot into recovery. At one point I did manage to flash a recovery that then came up with a warning about “software installed that is not supported by AT&T” and I couldn’t get past that so had to flash the stock recovery again.
On a side note, I accidentally wiped the EFS partition in this process (if found a tutorial that shows the S3 had recovery in partition 10, which is EFS on the S4). As a result 1.) the menu didn’t pop up when I hit the power button and 2.) wifi didn’t work. So, I made an .img of the EFS partition on my GT-I337 and moved it to the I9500 and that worked restoring both. In case anyone makes the same mistake.
I have now also used CWM ROM Manager and GooManger and tried installing recovery that way with no luck.

Just check if the internal memory partitioning is correct ( number, size and format) (use fdisk or parsed).
ODIN will install according to the PIT file and if drivers and cables are OK it is no other explanation than that.
PS: do not trust heimdall data because it just read the PIT file and do not give the true info from the memory part.!

Uhm on the TWRP website they say that the I9500 has it on partition 10.....
This would be the proper partition based on their website:
mmcblk0p10
Are you absolutely sure you have an i9500? Because my guess is that you don't.....
Boot into download mode. What does it say your model is?
Because on the AT&T it's partition 21.... So my guess is that you are messing up....

Thanks everyone for the input/feedback,
Something I think I had forgotten to mention previously, when the initial root/recovery attempts didn't work I downloaded an app to verify it is a genuine Samsung as I have heard of very good knock-offs. It is genuine according to the app.
Good point/catch regarding the location of the recovery partition. Under About Phone it shows as an I9500 and always has. When in download mode it currently shows as I337 but I wasn't sure if that was simply a result of all my attempts so I figured best to go with the one I am certain has been the same since I bought the phone. I had been hesitant to try wiping the recovery with for the I337 as that is how I soft-bricked my RazrHD (ultimately un-bricked it).
Tonight I will try the I337 files and see if Odin is successful. Thanks again.

Damn! Turns out my phone is an I337. The hardward (under the battery) says I9500 and when I plug it into a computer it shows up as I9500. On the weekend I thought I read that there is now the ability to flash recovery and install CyanogenMod on I337 if its updated to 4.4.2. So, I donwloaded the firmware and flashed with Odin. It flashed successfully but now I realize I am mistaken and 1.) cannot flash recovery, and 2.) cannot downgrade. For the time being I have installed Nova Launcher and removed as much of TouchWiz as possible. It's not perfect but at least usable. I'd like to start researching what it would take to flash recovery on this phone but I suspect I'm too busy at this moment.
Thanks everyone for the help,

Need tmobile note 4 n910t twrp back up file.

Hey guys so recently needed to revert my note 4 to stock mode. Somewhere something went wrong and i bricked my device. I was able to get it in to download mode but Odin keeps failing. Prob because my device keeps saying kernel is not Seandroid enforcing. So this went on for a few days. I even tried twrp zip files still fails to flash. The only thing i was able to do .... found someone else's twrp back up file and used it as mine and voila, it worked the prob is that that file was from another note 4 model. So. Its running but keeps rebooting and restarting and freezing.
So if anyone out there with T-mobile stock or other phone can make me a twrp back up file and send it to me or upload it somewhere so i can use it as my own . Thanks everyone
Also i there a way to mount phones had to a computer, wipe everything and reinstall everything from kernel to system to recovery to OS. Cause my phone wont except anything except twrp back up files . Thanks again

Have you tried to flash a stock rom from sammobile.com?

prvtking said:
Hey guys so recently needed to revert my note 4 to stock mode. Somewhere something went wrong and i bricked my device. I was able to get it in to download mode but odin keeps failing. Prob because my device keeps saying kernel is not seandroid enforcing. So this went on for a few days. I even tried twrp zip files still fails to flash. The only thing i was able to do .... found someone else's twrp back up file and used it as mine and volah, it worked the prob is that that file was from another note 4 model. So. Its running but keeps rebooting and restarting and frezing.
So if anyone out there with tmobile stock or other phone can make me a twrp back up file and send it to me or upload it somewhere so i can use it as my own . Thanks everyone
Also i there a way to mount phones hd to a computer, wipe everything and reinstall everything from kernel to system to recovery to os. Cause my phone wont except anything except twrp back up files . Thanks again
Click to expand...
Click to collapse
I'm a little confused about the title of your thread. The model number for the T-Mobile Note 3 is N900T. You're posting in the wrong section if you truly have the N910T, which is indeed the Note 4.
But anyway Lol, the "seandroid" message is normal for a phone that's rooted and has a custom kernel flashed. It just means the built in security enhancement isn't being enforced. That wouldn't cause Odin to fail while trying to flash a recovery.
If you're still having issues, your best bet would be to flash the full stock firmware with Odin and start over. It will flash the full system, kernel, and recovery. Here is a link to what you need. It's N910TUVU2DOK2 and is the latest 5.1.1 build.
http://www.sammobile.com/firmwares/download/61414/N910TUVU2DOK2_N910TTMB2DOK2_TMB/
Sent from my SM-A710F using Tapatalk

Sorry for the typo. I do have note 4 n910t as i said before odin fails every single time. Tried reinstalling isb drivers, changing usb slots and cable. Twrp failes to write zip file. The only thing i can do is back up and restore using twrp. Thats why was hoping someone has or make me a twrp back up file of a n910t.

Galaxy S4 (GT-i9500) Major problem

Hello everyone. I used Albe95 N5+S6 Port rom for my GT-i9500 and it worked flawlessly. I had TWRP recovery. After a lot of using I thought to re-flash the rom and start using it new, so I reinstalled the Rom file on my external SD card and flashed the rom using TWRP recovery and it was a success, but then I noticed I accidentally backed up some things which I didn't wanted to I re-flashed the Rom again, but this time when I (in recovery mode) wiped the data, I chose "Advanced Wipe" or "Advanced Reset" (It was something like that I don't exactly remember. So after that I reflashed the rom and when I had to press "Reboot" a message appeared above saying "Looks like super user is not installed in your phone. Do you wish to install it?" I said Yes and the screen went blank. I tried to reboot but It didn't. I removed the battery and then put it back again and tried to get into recovvery but recovery seemed to be lost and I ended up in Samsung's own factory mode where we have options like reboot, flash using external sd card, flash using adb, enable cp logging and etc. I tried to flash back everything but nothing works. Tried Odin and tried flashing custom firmware but it fails. If I reboot Samsung Galaxy S4 GT-i9500 comes on screen and then it goes blank no boot animation or anything like that. Please help me, Your help will be highly appreciated

I used advanced wipe many times before, I'm pretty sure something else caused your dilema.
And most Odin fail messages are caused by the USB cable, PC USB ports (back ports are recommended) and Windows version.

So what should I do now?

If the problems are caused by the above mentioned, you should obviously try to change things up.

It appears that your phone is in soft-brick.
Also, you lost your TWRP.
Check your bootloader version and install the stock firmware via odin. (If you still fail in odin, As GDreaper pointed out, odin fail could cause by usb cable, port and windows version so you need to keep changing until it works)
Root the phone. Reinstall the TWRP.
Then flash the custom rom again. When you install the custom rom please follow the cooker (custom rom maker) instructions on wiping.

Thanks for your comment. I'm kind of a noob, how do I check bootloader version? and how will I know after checking my bootloader version which stock firmware to install?

Bootloader has nothing to do with it.
If you flash a stock firmware, the Bootloader will also be updated to whatever Bootloader the download firmware has.
The only situation where the Bootloader would matter is if you try to go from lollipop to kitkat, in which case it will fail.

Thank you. My device is back now.

I am glad to hear that your problem is solved.
When I was on kit-kat, I did not check my bootloader version and flash the stock firmware with older version of bootloader which tripped the knox counter on my i 9500. That was why I said to check the bootloader version before installing the stock firmware. You can use app like phone info to see the bootloader info. Then install the firmware with the same or newer bootloader.

I recomend to Update drivers, Windows, Bootloader install Samsung Kies and Install TWRP again, After stock

S8 G950F - stuck on verification following unroot.

hi
ive got a s8, which was rooted using magisk, but was having issue, so was advised to unroot, remote and try superSU instead.
in the process of flashing stock rom AND 8.0, the phone now boots up to black screen showing verification failed, only option to reset.
when i press reset, all it does is restarts, loads up TWRP which had been installed before,
TWRP runs some program and fails and then phone goes back to black screen showing verification failed.
ive booted it into download mode, in the hope that i can just start again by simply lashing fresh stock rom, but it connects to odin fine, but when i click start, it gives a red error every time.
so i cant access the standard recovery menu as ive got TWRP so that loads instead and it looks as that is corrupted and i cant flash new fresh rom from download as odin brings up issue
ive check another phone and there is no issue with odin or the usb-c cable,
there is an issue with the s8 and odin does not like something in the s8 so wont let me flash anything to it,
any advice would be greatly appreicated.

When you flashed the stock rom using odin did you flash a bootloader aswell as the rom or did you just flash the rom the problem might be that the bootloader was for pie and the rom is oreo or vice versa whenever I flash back to stock I fill all but one of the boxes in odin

i suspect it was all oreo, as i downloaded as a complete file but ill check and get back to you
thanks for advice.

I have an stock S8 that is boot looping. Do you think rooting or installing an different Rom is possible?

It's been a few years since I've done anything like this.
I can get into the recovery menus and wiped the device. It still won't boot normally or in safe mode.
Also if it's possible, what Rom would you recommend? I'm a Pixel user and really like it's UI.

kent c said:
It's been a few years since I've done anything like this.
I can get into the recovery menus and wiped the device. It still won't boot normally or in safe mode.
Also if it's possible, what Rom would you recommend? I'm a Pixel user and really like it's UI.
Click to expand...
Click to collapse
I recommend to first flash a stock firmware to fix the bootloop.
You can check and download stock Samsung firmware files with Frija (https://forum.xda-developers.com/t/tool-frija-samsung-firmware-downloader-checker.3910594/) and then flash it with Odin.
Check latest stock firmware available for your device first then you can decide if you want to test a custom rom.

I flashed the official ROM but my phone hangs on Samsung logo screen. When I open stock recovery (as I don't have custom one), it says dm-verity verification failed and when I boot up my phone, it goes straight away to stock recovery and logs show recovery reason unknown no such file or directory. I have tried flashing multiple times but no luck. Odin flash is always successful.