Develop Bugs

[Q] Bootloop on recovery

Hi.
After a reboot a got a bootloop in the recovery. (TWRP) recovery. I can't enter the recovery anymore to fix anything. I can only use the download mode. This happened after I switched to F2FS file system using Resurrection ROM with the AGNI Kernel. The ROM was okay in the F2FS mode, the bootloop occured after rebooting in the TWRP from the ROM..
I have tried Odin in various versions, I tried to reflsh the recovery but it failed. I also tried to reformat using the PIT file. This indicated PASSED but still i was not able to flash a recovery thereafter.
What else could i try????
Many thanks!

offti1 said:
Hi.
After a reboot a got a bootloop in the recovery. (TWRP) recovery. I can't enter the recovery anymore to fix anything. I can only use the download mode. This happened after I switched to F2FS file system using Resurrection ROM with the AGNI Kernel. The ROM was okay in the F2FS mode, the bootloop occured after rebooting in the TWRP from the ROM..
I have tried Odin in various versions, I tried to reflsh the recovery but it failed. I also tried to reformat using the PIT file. This indicated PASSED but still i was not able to flash a recovery thereafter.
What else could i try????
Many thanks!
Click to expand...
Click to collapse
Flash the PIT file together with a 4.1.2 stock firmware downloaded from SamMobile. Root and do whatever you want after.

My mix is CyanogenmodX (by UtkarshGupta)+f2fs+agni. It's kinda weird and I did not found someone else with this problem except this topic. I did a lot of reflashing to nail it down to the following:
I'm stuck with a twrp loop (twrp logo appears and then reboots) when using f2fs (/data only) and the system is installed. This problem is now for some months, before it worked fine with the same setup. Also complete wipes of all partitions and even repartition did not help.
-It works as long as there is no OS present or not booted for the first time.
-To fix it, I can either format /system or /data (to ext4). To do that, I have to flash an other recovery.
-It does not matter if I use the format script (as provided in the OT), or with twrp advanced wipe/change partition type (which only works if TWRP is not newer than 2.8.1.0 - newer versions give an error: unable to wipe data).
-The OS itself runs fine.
A strange thing to note: there was a time, where this problem occurred, to fix it, I had to flash an other recovery via odin, boot into that recovery, do nothing(!), reflash twrp with odin again, and I could access twrp again until I booted the OS again. This suddenly stopped and the only fix is the way I described above.
And a site note: the "loop" only occurs when using the advanced reboot options from the OS (or any other tool from the OS to boot into recovery), as it sets a recovery flag. When using volup+home to access recovery, it only happens once, still allowing the workaround to flash another recovery to remove the flag, and able to reboot system afterwards again (but no access of twrp anymore).
I also tried updating bootloader (and modem) with no success.
Process on installing: wiping everything except externalSD, change /data to f2fs, reboot recovery, install CMx, gapps, supersu, agnikernel.
Aaaaany input that might help to resolve this is really appreciated.

[Q] Unable to mount /data

Hi,
I've just tried and failed to install the "cm-12-20150218-NIGHTLY-nicki" ROM on my phone. Specs are:
Official Android 4.3 Firmware
Model: C1904
Timeline:
Unlocked bootloader according to instructions at http://forum.xda-developers.com/showthread.php?t=2484428
Phone then got stuck in official boot animation (the colourful one)
Didn't bother flashing the "Elixer" kernel as suggested in above thread
Used fastboot to flash the boot.img from the CM zip file
Booted to recovery
Wiped data & cache
Flashed CM & GApps from external SD card
Restarted phone
Phone showed big Android robot animation and then went back to CyanogenMod Recovery
Looking at logs showed "Cannot load volume /misc" error
Found a forum post saying this thread helped with the above error: http://forum.xda-developers.com/xperia-m/development/cwm-twrp-recoveries-cm12-lollipop-t2979752
Tried flashing TWRP recovery (http://forum.xda-developers.com/xpe...very-cwm-twrp-recoveries-custom-roms-t3016507) within CyanogenMod Recovery, but it said the file integrity was bad or something
Used "fastboot flash boot FOTAKernel.img" to flash the above, which worked
Tried to wipe data from within TWRP, but got "failed to mount /data" errors
So the phone is now in a state where:
I can only boot into TWRP
I can't use ADB since the program on the computer won't detect the phone
Fastboot still works
I can't boot into Android
Something seems wrong with "/data"
Any ideas about where to go from here?

I was able to use Flashtool to flash the official firmware back on and boot into it as normal. After doing that and restarting the procedure to install CM12 2015-02-19, this time it installed just fine.
Although I still got errors about "Cannot load volume /misc". Hopefully they don't matter...

Now you have CM12 installed and it is working?
Had the same errors when I tried to flash CM12. Flashing CM11 worked fine but I could not get CM12 to boot...

xa.fr said:
Now you have CM12 installed and it is working?
Had the same errors when I tried to flash CM12. Flashing CM11 worked fine but I could not get CM12 to boot...
Click to expand...
Click to collapse
Yeah; it's installed and working fine. When I flashed the official firmware, (Android 4.3) I told Flashtool to flash everything including the kernel. That seemed to put the phone back into a good state, which allowed me to install CM12.
I'm not sure what caused the problem in my case. Maybe it was unlocking the boot loader.

Urgent Help Needed Flashing CM13 On a GT-I9195 LTE

Hi people.
I'm in the process of flashing my friend's Samsung Galaxy S4 Mini LTE.
Here's some details:
TWRP version: 2.6.3.0 (The one some dude here made himself)
ROM: cm-13.0-20160418-SNAPSHOT-ZNH0EAO2NJ-serranoltexx
SuperSU installed
Rooted using CM AUTO ROOT
Used Odin 3.09 to install TWRP
Everything is working fine but i'm having an issue flashing GAPPS.
9195 has a Krait 300 - which is an ARM processor so i downloaded the ARM 6.0 Micro package from OpenGapps.
Wiped all partitions, queued up the ROM and GAPPS in TWRP and flashed.
The process goes by fast and smooth, but the phone doesn't boot up after that.
The first time it took 25 or so minutes to boot up and ALL the GAPPS crashed after that.
What should i do?
I tried the following alternatives as well:
Bliss-v6.3-serranoltexx-UNOFFICIAL-20160521-1003
Slim_mini_gapps.BETA.6.0.build.0.x-20160516-2250
benzo-gapps-M-20151011-signed-chroma-r3

@Helhound0
That's an old recovery. I would update it with TWRP 3.0.2-1 from HERE, reboot to recovery, and then wipe /system, /data, /cache, and dalvik/art cache, then flash rom and gapps and reboot.

noppy22 said:
@Helhound0
That's an old recovery. I would update it with TWRP 3.0.2-1 from HERE, reboot to recovery, and then wipe /system, /data, /cache, and dalvik/art cache, then flash rom and gapps and reboot.
Click to expand...
Click to collapse
This worked!
I thought the old TWRP version was the only version compatible with the SGS4Mini.

I'm a Newb sure, but fairly sure this isn't my fault....
Hello, I have spent the past 2 days working on this flash you've stated as well and I can't understand for the life of me what I am doing wrong. You mentioned that TWRP may not have supported the mini but it seems that it does - odin just isn't installing it right? I am hoping people on here have already hashed this out on both ODIN and TWRP for this device and after spending 24 hours figuring this out i'm wondering if it's just some stupid thing i'm doing wrong. I've put the full stuff below which you may largely be able to ignore but what i need to figure out is how to install TWRP 3.0 or higher on my device, and how to keep ODIN from crashing. Can you help?
1. where I started and my goal:
My homestay mother in New Zealand who works for the tech firm Datacom provided me with a Galaxy S4 mini (GT-I9195 spark edition) that she had left over because she got a new phone for her work. I had a galaxy note 2 running default controls due to its setup on KNOXED up verizon, so i thought this was a good opportunity to switch to cyanogen since i've used the service before (someone else went through all this trouble for me and I am eternally grateful). So I am trying to install Cyanogen mod 13 with GAPPS package nano on to it.​
2. The file repretoires and guides I used:
TWRP 2.8.1 (originally) and it's accompanied manager
Trying to upgrade to TWRP 3.0.2.0 or 3.1.0
GAPPS arm 6.0 mini/nano/pico (I've tried all three)
Odin 3.12.3 with requisite drivers (shows blue on status bar)
Default Bootloader for Android devices
CMD ADB systems with requisite drivers
CyanogenMod 13 (cm-13.0-20160820-ZNH5YAO0J7) (currently installed and working san-GAPPs)
3. What I've done Start to current:
starting with the phone locked, unrooted, and factory resets not working (company KNOX settings)
Installed Kingroot, superSU, RootChecker, TWRP manager and official ap, P-uninstall = Obtained Root
Attained root on the phone, deleted all KNOX and KGNT protection. = obtained unlocked sim/recovery loader
Installed TWRP 2.8.6 (any more recent installs failed as I will explain below in problems) Attempted to flash it = read success
Failed to boot into TWRP recovery - provided default recovery instead.
downloaded and installed ODIN. Used default boot loader and attempted to install TWRP directly through ODIN = Works
placed CM13 zip file and GAPPS 6.0 - ARMS Nano on SD card.
Created recovery on SD card
Wiped cash, devalk cache, and internal storage = clean partition
Installed BOTH CM13 and GAPPs 6.0 as zip files using TWRP 2.8.6 = worked
rebooted system into new OS
OS got stuck in boot cycle due to GAPPs package. after some googling i found out that Gapps requires TWRP 3.02 or higher (but i couldn't get those to download onto my phone at all. [here enlies the ROOT of my problem - you're allowed to kill me now]
Returned to TWRP and installed JUST CM13 on the device = works great! just no GAPPs! and no ability to download apps
Used Odin, TWRP manager, the official TWRP app, and CMD ADB sideloader to attempt to install all 3.0 and higher TWRP files = all of them failed
now I cannot access a bootloader at all, but can access my OS just fine. It refuses to accept any TWRP bootloaders but without them i cannot install GAPPS
4. Where I am Currently & Problems I'm running in to:
Right now CM13 is on and stable for my device. My Recovery loader is refusing to come up AT ALL. Attempting to install both .img and .tar files of TWRP read as succeeding in the apps but don't come up.
ODIN can't load anything on the device. Either it keeps freezing and crashing any time I touch it or when it does go through the device still can't bring up TWRP. Even when flashing 2.8.6 which originally worked as a recovery file it fails as well. I can't get back to TWRP working at all.
ADB sideloading just results in <waiting for device>. I am clearly using "fastboot" instead of ADB during the point in which i am flashing the recovery file on to it.
5. What I need Help with:
I need to know why TWRP is freezing any time i attempt to install it regardless of version and how to get it properly installed
if someone could point me to a reason odin freezes regardless of what options I tick on or off, file I upload, or whatever i'd love to know
I see 2 ways out of my predicament and i'm not sure which one I should spend more time on: 1) get TWRP 2.8.6 to work again and then find an older GAPP partition to load on to it. or 2) Get TWRP 3.0 or greater to work on it, and then use current GAPP packages. which would be best?

Tried flashing Lineage OS but ended up stuck in a boot loop.

I unlocked the bootloader following Motorolas steps. I then flashed the latest version of TWRP avaiable on the development forum and then flashed Lineage OS + the root zip they provide and gapps. I couldn't figure out how to get out of the bootloop so I've since gone back to stock. Any idea what I was missing?
TWRP:
https://forum.xda-developers.com/mo...recovery-unofficial-twrp-moto-z-play-t3495629
Lineage:
https://forum.xda-developers.com/moto-z-play/development/rom-unofficial-cyanogenmod-14-1-t3495644

Did you read the notices and entries on the Linage last pages of the thread that people are having it fail on the install, the latest release? That would be a clue...

I even tried flashing Pure Nexus but that too was stuck on a loop. I left it for about 10 minutes as it was loading. :/

I did the same thing like you on my first attempt, on my second I was able to install Lineage OS successfully. I'll provide the steps I did.
First attempt steps:
1. Unlocking the bootloader using Motorola website
2. Installing TWRP from the same link in your post.
At that point I tried booting the phone, but the phone was booting to TWRP only, tried wiping, format data from TWRP with no luck.
3. From TWRP flashed Lineage OS zip file and GAPPS nano package (the latest version of TWRP is able to see SD card).
At that point I was able to to boot LOS only after executing "fastboot erase user data". Doing the same from within TWRP was not doing the job. The problem was that after each reboot the phone was getting into bootloop again and "fastboot erase userdata" was necessary.
4. At that point I noticed that TWRP thread starts with warning that you have to install a patcher to disable this "verity" feature of the bootloader may be. And I installed the patcher "Verity_FE_patcher.zip"
The patcher didn't fix the issue and went back to stock Nougat using the guide below:
https://forum.xda-developers.com/moto-z-play/how-to/moto-z-play-reteu-firmware-otas-t3557917
First I tried "flashall.bat" , but it didn't wor.k and I flashed all the files manually using the guide . The phone booted normally and I updated it with one OTA update.
Second attempt steps:
1. I wanted to install the verity patcher before anything else and I boot TWRP 3.1.0.1 without flashing it. It booted normally and I realized that the SD card was formated and the patcher zip file is not there. I reboot the system and the phone got in bootloops again even the TWRP was not installed. I coppied the patcher zip, LOS zip, GAPPS zip on SD card . I tried to boot (without flashing) TWRP again, but for some reason TWRP was not able to boot.
2. I flashed TWRP
3. Booted TWRP and flashed verity patcher.
4. Wiped from TWRP and boot the system
At that point I was able to boot the stock firmware with TWRP installed and I was able to restart the phone normally.
5. Flashed LOS and nano GAPPS
Now everything seems to work properly.
Hope this will help.

Thanks. I'll give this a shot tonight. Our first attempts sound very alike.

Can't upgrade TWRP from 2.8.7 to 3.0.2

Hi, I flashed the FOTA Kernel with TWRP 2.8.7 onto my phone and inside TWRP I flashed the recovery with the 3.0.2 TWRP image (telling me "Successfully flashed")
But after rebooting I still have TWRP 2.8.7
Using windows command line and "fastboot flash recovery "TWRP.....img" I get this "FAILED" message.
What am I doing wrong?
I even flashed the phone back to stock and then followed these instructions but same result.
Is my phone broken or sth?

Hi H4NNE5, the Xperia M does not have a recovery partition. The TWRP recovery is included in the boot partition when flashing the kernel. Try to upgrade with the TWRP-Manager if your phone is rooted.

Hi Lightningsfire, Thanks for you answer.
Ok, that's weird because I read a lot of threads but none said anything like that. I'm more confused right now.
Anyhow the LineageOS is not properly working on my phone anyhow so I set it back to Stock Rom and check back in a few months if it improved
One more question:
So if I flash the whole software package the boot partition is overwritten then, right? Because I noticed that the Recovery was a different one, after I flashed the system.

H4NNE5 said:
Hi Lightningsfire, Thanks for you answer.
Ok, that's weird because I read a lot of threads but none said anything like that. I'm more confused right now.
Anyhow the LineageOS is not properly working on my phone anyhow so I set it back to Stock Rom and check back in a few months if it improved
One more question:
So if I flash the whole software package the boot partition is overwritten then, right? Because I noticed that the Recovery was a different one, after I flashed the system.
Click to expand...
Click to collapse
Try this command
fastboot flash boot twrp_name.img