Develop Bugs

[Q] Android 4.3 hanging on boot

I have an I747 on T-Mobile.
I recently installed SlimBean 4.3 on it, and it started up and worked fine. But when I went to restart it, it hung on the "SlimBean" screen. Never got to the bootanimation.
I read online that there's issues when coming from another 4.3 rom, and I had previously been running CyanogenMod 10.2, although it was a nightly and it crashed, corrupting my data. I decided not to try that again.
So after that experience with SlimBean, I tried to flash BeanStalk from the T-Mobile GS3 forum. This is also a 4.3 rom, and it ran fine on my I747, except when I went to reboot. It too hung on the logo.
And yes, I have wiped internal storage, and I'm running the latest version of TWRP. I even tried to flash Samsung's stock firmware with Odin, and it worked, but it wouldn't boot (or maybe I'm overestimating how quickly TouchWiz can boot). It overrode my recovery, like I was expecting, so I flashed TWRP with Odin and then proceeded to flash SlimBean 4.3 again. Same problem.
Does anyone have a solution to this? It's been driving me crazy. I will try some other 4.3 roms and see if they're all doing this.

danielhep said:
I have an I747 on T-Mobile.
I recently installed SlimBean 4.3 on it, and it started up and worked fine. But when I went to restart it, it hung on the "SlimBean" screen. Never got to the bootanimation.
I read online that there's issues when coming from another 4.3 rom, and I had previously been running CyanogenMod 10.2, although it was a nightly and it crashed, corrupting my data. I decided not to try that again.
So after that experience with SlimBean, I tried to flash BeanStalk from the T-Mobile GS3 forum. This is also a 4.3 rom, and it ran fine on my I747, except when I went to reboot. It too hung on the logo.
And yes, I have wiped internal storage, and I'm running the latest version of TWRP. I even tried to flash Samsung's stock firmware with Odin, and it worked, but it wouldn't boot (or maybe I'm overestimating how quickly TouchWiz can boot). It overrode my recovery, like I was expecting, so I flashed TWRP with Odin and then proceeded to flash SlimBean 4.3 again. Same problem.
Does anyone have a solution to this? It's been driving me crazy. I will try some other 4.3 roms and see if they're all doing this.
Click to expand...
Click to collapse
p
I had something that sounds similar when I was trying to update from task's 4.2.2 to 4.3. Kept stopping at the kernel screen ( after the usual wiping of caches and system). Finally, someone recommended that, in addition to wiping data, that I format data as well. This basically wipes everything (i was using twrp 2.3.3.1). After doing this, I reinstalled the ROM and gapps and it works now.
Not sure this is what you experienced but it sounded similar. Before doing anything else, be sure that you have a back up and that you have removed any external sd card, should you have to go back. Good luck.

captican said:
p
I had something that sounds similar when I was trying to update from task's 4.2.2 to 4.3. Kept stopping at the kernel screen ( after the usual wiping of caches and system). Finally, someone recommended that, in addition to wiping data, that I format data as well. This basically wipes everything (i was using twrp 2.3.3.1). After doing this, I reinstalled the ROM and gapps and it works now.
Not sure this is what you experienced but it sounded similar. Before doing anything else, be sure that you have a back up and that you have removed any external sd card, should you have to go back. Good luck.
Click to expand...
Click to collapse
Yeah, I did that. I wiped everything I could and formatted data. Maybe I should try installing a different kernel?
With your issue, was it stopping on the first boot or did you get it running once then it stopped?

danielhep said:
I have an I747 on T-Mobile.
I recently installed SlimBean 4.3 on it, and it started up and worked fine. But when I went to restart it, it hung on the "SlimBean" screen. Never got to the bootanimation.
I read online that there's issues when coming from another 4.3 rom, and I had previously been running CyanogenMod 10.2, although it was a nightly and it crashed, corrupting my data. I decided not to try that again.
So after that experience with SlimBean, I tried to flash BeanStalk from the T-Mobile GS3 forum. This is also a 4.3 rom, and it ran fine on my I747, except when I went to reboot. It too hung on the logo.
And yes, I have wiped internal storage, and I'm running the latest version of TWRP. I even tried to flash Samsung's stock firmware with Odin, and it worked, but it wouldn't boot (or maybe I'm overestimating how quickly TouchWiz can boot). It overrode my recovery, like I was expecting, so I flashed TWRP with Odin and then proceeded to flash SlimBean 4.3 again. Same problem.
Does anyone have a solution to this? It's been driving me crazy. I will try some other 4.3 roms and see if they're all doing this.
Click to expand...
Click to collapse
I had the same problem since 4.3 came out. It has to do with partition tables... What i've done to correct the problem:
- Odin back to stock
- Format entire phone. (Complete wipe) + Dalvik and cache
- Odin stock with root
- Replaced TWRP recovery for CWM
- Flashed 4.3 ROM and VOILA
- I have tried every 4.3 rom ever since with no problems
Don't (Complete wipe) with Twrp recovery, it seems to mess up the partitions.
Hope this works for you
Cheers

danielhep said:
Yeah, I did that. I wiped everything I could and formatted data. Maybe I should try installing a different kernel?
With your issue, was it stopping on the first boot or did you get it running once then it stopped?
Click to expand...
Click to collapse
It loaded the first time and then rebooted, freezing on the kernel screen. I could get into recovery, and restore a previous ROM but it would hang up on 4.3. I described the steps I had taken when someone suggested reformatting data. I tried again and it is working now.
The method described in the other post may also solve your problem. I say that because I cannot update twrp to 2.6.1, at least via goo manager. I have not tried using Odin to update (yet).

I have this same as problem. It's annoying. I reflashed the rom 15 times yesterday. I'm gonna try and see if Deathstrings idea works.
Sent from my SGH-I747 using XDA Premium 4 mobile app

I managed to load a stock rom back to the phone but again, it hung on the SAMSUNG screen. Took it to "a guy" and he did a
key sequence and got it to boot. Woulnd't tell me what it was........
ANy one know???

Apocalypse487 said:
I have this same as problem. It's annoying. I reflashed the rom 15 times yesterday. I'm gonna try and see if Deathstrings idea works.
Sent from my SGH-I747 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
This happened to me after I flashed back but formatting data got it to work (but I have had more problems with apps not installing properly but I learned how to deal with that...still cannot update TWRP via goo manager; waiting on trying it with Odin).

AOSP roms will NOT run! Driving me crazy...

So, first off, just wanna say that I have a RIDICULOUS amount of experience with flashing roms. Literally over 100 different devices and 1000s of different flashes of my own devices on top of it. Quite familiar with this S2 as well and have customized them to all sorts of extents, but this one has me baffled. This phone refuses to run 4.2.2/4.3/4.4.x roms. Using the most up to date radio and the suggested TWRP (2.6.1.0) as well as CWM 6.0.44 and the newer TWRP: 2.6.3.0. Every time the phone will get to the set up screen, refreeze and boot. No issues running stock or stock based 4.1.2 roms. I've tried changing recoveries, wiping everything (/system, /data, /caches) repeatedly, Odin back to stock and redoing everything, switching kernels, wiping caches before rebooting and leaving it be, changing batteries, etc but nothing has worked. So far I've tried BlackLiquid 2.92 (4.2.2 stable), Awesome Audio rom (4.3), official CM11 (whatever the last build up was last night), and BeanStalk 4.4.2 (12/16) and all behave exactly the same - freeze on start up and reboot. This doesn't seem to be much of a widespread issue obviously, so just baffled and getting a bit frustrated as this should have been a 20 minute process that has turned into a few hours already. Since USB Debugging isn't on by default on newer roms, how would I even do a logcat to see if there is anything meaningful there? Any ideas?
Update: I have another S2. Performed same steps, same TWRP, same radio and rom, on same external SD card and that one booted right up like normal confirming that it is the phone itself, but what causes that?? Corrupted partitions?

I have the same problem, just format your internal and external sd card with just ROM file on your storage then try to install, than please inform me
Sent from my SGH-T989 using XDA Premium 4 mobile app

iamdofus said:
I have the same problem, just format your internal and external sd card with just ROM file on your storage then try to install, than please inform me
Sent from my SGH-T989 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Nope. No luck there (only tried Beanstalk so far, but exact same issue). Thanks for the suggestion though! Only using internal storage, no SD card, though thinking I might try that next...
Edit: Just to be thorough, I formatted internal storage via TWRP and my computer then readded the files and just tried to boot rom only and freezes before I can do anything.

Do you by chance have a refurbished s2?

The screen has been replaced by a friend of mine and he managed to mess up the soft keys with it, but everything else functions. That's actually why he sent it to me, so I could hook him up with Pie and all that kind of thing so the soft keys aren't an issue. What's your thoughts on the refurb side of it?

es0tericcha0s said:
The screen has been replaced by a friend of mine and he managed to mess up the soft keys with it, but everything else functions. That's actually why he sent it to me, so I could hook him up with Pie and all that kind of thing so the soft keys aren't an issue. What's your thoughts on the refurb side of it?
Click to expand...
Click to collapse
OK thanks for reply, I have one more solution give me. Some time I will give try that it worked for me.
Sent from my SGH-T989 using XDA Premium 4 mobile app

es0tericcha0s said:
Nope. No luck there (only tried Beanstalk so far, but exact same issue). Thanks for the suggestion though! Only using internal storage, no SD card, though thinking I might try that next...
Edit: Just to be thorough, I formatted internal storage via TWRP and my computer then readded the files and just tried to boot rom only and freezes before I can do anything.
Click to expand...
Click to collapse
ok lets stat it with this
1) download both the scripts of infamous wipe cache and infamous super wipe.
2) format your both SD card with PC (FAT32)
2) put both these wipe files and and your rom file ( i prefer try slimbean rom first)
3) Now in twrp 2.6.0.0- follow the steps
i) format your phone with twrp options
ii) again format your phone with infamous super file. (by going in to INSTALL ZIP file option in TWRP)
iii) than format with infamouse cache file (by going in to INSTALL ZIP file option in TWRP)
iv) install your rom and compatiable GAPPS zip file.
v) after installing or somewhere between procedure if twrp says something about supersu birnaries are not correct than click on DO . NOT FIX
vi) again format infamouse cache wipe.
vii) now FINALLY reboot the rom.
it should work, and it worked for me. if u sucessfully run the rom than you can eailsy run all the AOSP roms in this forum. Again If you try this please do tell me what happend.

Followed to a "T" and still in the same boat - freezes after bootup. I used those same steps before with another darkside wipe script (maybe older?) but yea, have already been down that road. I did downgrade to 2.6.0.0 and used Slim 4.3 because 4.4 is supposed to use the newer TWRP, just to be certain, but GRRR. I guess we're just gonna have to settle for a 4.1.2 rom and call it a day. :/
So here are the log output from the wipes:
https://dl.dropboxusercontent.com/u/9903887/INFAMOUS.SUPER.WIPE_recovery.log
https://dl.dropboxusercontent.com/u/9903887/INFAMOUS.CACHE.WIPE_recovery.log
I see some stuff at the bottom of those that might indicate something weird, but I am not adept at interpreting these, so just wondering if someone could point me to the right direction about the repair checks and what not listed on these. Thanks!
Edit 2: I did get a AOSP based 4.1.2 rom to boot with no problems! wtf... LoL
Last Edit:
Problem solved! I used basically the same steps I had been doing but once the AOSP 4.1.2 rom booted then now everything works like it should again. Have loaded a 4.3 and 4.4 rom successfully. Thanks for the help!

es0tericcha0s said:
So, first off, just wanna say that I have a RIDICULOUS amount of experience with flashing roms. Literally over 100 different devices and 1000s of different flashes of my own devices on top of it. Quite familiar with this S2 as well and have customized them to all sorts of extents, but this one has me baffled. This phone refuses to run 4.2.2/4.3/4.4.x roms. Using the most up to date radio and the suggested TWRP (2.6.1.0) as well as CWM 6.0.44 and the newer TWRP: 2.6.3.0. Every time the phone will get to the set up screen, refreeze and boot. No issues running stock or stock based 4.1.2 roms. I've tried changing recoveries, wiping everything (/system, /data, /caches) repeatedly, Odin back to stock and redoing everything, switching kernels, wiping caches before rebooting and leaving it be, changing batteries, etc but nothing has worked. So far I've tried BlackLiquid 2.92 (4.2.2 stable), Awesome Audio rom (4.3), official CM11 (whatever the last build up was last night), and BeanStalk 4.4.2 (12/16) and all behave exactly the same - freeze on start up and reboot. This doesn't seem to be much of a widespread issue obviously, so just baffled and getting a bit frustrated as this should have been a 20 minute process that has turned into a few hours already. Since USB Debugging isn't on by default on newer roms, how would I even do a logcat to see if there is anything meaningful there? Any ideas?
Update: I have another S2. Performed same steps, same TWRP, same radio and rom, on same external SD card and that one booted right up like normal confirming that it is the phone itself, but what causes that?? Corrupted partitions?
Click to expand...
Click to collapse
Interesting, so you're saying it's phone specific?
That begs to ask other questions now:
1. Where did this phone come from? is it a Tmobile version (SGH-T989) or AT&T (i-1900)?
2. You mentioned you got it from a friend; did it come rooted? unlocked? Or did you have to do that process yourself?

UltimaniumX said:
Interesting, so you're saying it's phone specific?
That begs to ask other questions now:
1. Where did this phone come from? is it a Tmobile version (SGH-T989) or AT&T (i-1900)?
2. You mentioned you got it from a friend; did it come rooted? unlocked? Or did you have to do that process yourself?
Click to expand...
Click to collapse
Yep, very much phone specific. Used same recovery, same rom zip and gapps off the same external SD card, to be certain. That one updated just like every other S2 I've done. And it's the Tmo version. The At&t models are i777 S2 or i727 S2 Skyrocket. The i9100 is international and has a physical home button. But the phone was not modified at all. No root, custom recovery, etc. I was only able to resolve it by first starting with an AOSP 4.1.2 rom and working my way up to 4.4. One of the weirder issues I've come across.

es0tericcha0s said:
Followed to a "T" and still in the same boat - freezes after bootup. I used those same steps before with another darkside wipe script (maybe older?) but yea, have already been down that road. I did downgrade to 2.6.0.0 and used Slim 4.3 because 4.4 is supposed to use the newer TWRP, just to be certain, but GRRR. I guess we're just gonna have to settle for a 4.1.2 rom and call it a day. :/
So here are the log output from the wipes:
https://dl.dropboxusercontent.com/u/9903887/INFAMOUS.SUPER.WIPE_recovery.log
https://dl.dropboxusercontent.com/u/9903887/INFAMOUS.CACHE.WIPE_recovery.log
I see some stuff at the bottom of those that might indicate something weird, but I am not adept at interpreting these, so just wondering if someone could point me to the right direction about the repair checks and what not listed on these. Thanks!
Edit 2: I did get a AOSP based 4.1.2 rom to boot with no problems! wtf... LoL
Last Edit:
Problem solved! I used basically the same steps I had been doing but once the AOSP 4.1.2 rom booted then now everything works like it should again. Have loaded a 4.3 and 4.4 rom successfully. Thanks for the help!
Click to expand...
Click to collapse
What did you exactly do? I flashed a 4.1.2 and then flashed a 4.3 based ROM and it didn't work. What recovery version did you use to flash the 4.3 ROM?

tpag02 said:
What did you exactly do? I flashed a 4.1.2 and then flashed a 4.3 based ROM and it didn't work. What recovery version did you use to flash the 4.3 ROM?
Click to expand...
Click to collapse
Sorry, I don't pay attention to the notifications on XDA very often. I don't usually browse the S2 forums unless needed because I have an N5, but anyway... The 4.1.2 rom you used, was it TW or AOSP type? I used 2.6.0 to wipe everything, then used cache and superwipe zips then 4.1.2 AOSP type rom then cache wipe zip again then after that booted, I was able to go back to 2.6.1 and flash a 4.3 via wiping, wipe zips, installing rom then cache wipe again. After that, repeated with a KK rom and now it loads roms just like it should. If you want more precise help, feel free to hit me up on Hangouts with my username: es0tericcha0s. Good luck! I know how frustrating it can be when it gets a little out of whack like this...

I'm in the same boat
Same here. I just bought a galaxy s2 from my friend (tmobile version) and I too get stuck in a bootloop no matter what rom I use. It boots up freezes then reboots 7 keeps doing that endelessly. I've even wiped using twrp & darkside then reflashed the stock rom in odin, but no luck. strangely it only happens on the cellular network, otherwise it works fine on wifi. But when I turn off the wifi and go to the cellular network I can't even turn on the wifi anymore and still stuck in this boot loop It's wierd and frustrating.

DennyTek said:
Same here. I just bought a galaxy s2 from my friend (tmobile version) and I too get stuck in a bootloop no matter what rom I use. It boots up freezes then reboots 7 keeps doing that endelessly. I've even wiped using twrp & darkside then reflashed the stock rom in odin, but no luck. strangely it only happens on the cellular network, otherwise it works fine on wifi. But when I turn off the wifi and go to the cellular network I can't even turn on the wifi anymore and still stuck in this boot loop It's wierd and frustrating.
Click to expand...
Click to collapse
Hmm. That's interesting... This is happening on the stock rom - where you turn on cellular data and it reboots? Definitely a different issue than the one I was having. Which stock rom were you flashing via Odin? Have you tried other versions of the stock rom and had the same problem?

TMO 4.1.2
es0tericcha0s said:
Hmm. That's interesting... This is happening on the stock rom - where you turn on cellular data and it reboots? Definitely a different issue than the one I was having. Which stock rom were you flashing via Odin? Have you tried other versions of the stock rom and had the same problem?
Click to expand...
Click to collapse
This was happening on any rom I used (Cm 10.2 stable, Cm 11 nightly, AOKP & Super Nexus 3.0 which is Android 4.3) I can't really speak for the stock rom (tmo 4.1.2) since I've never used it for more that 5 minutes, sigh but I'll try it and see if it gives me the same problem :/

Are you guys flashing gapps if the ROM you're installing doesn't have it?
Sent from my SGH-T989 using Tapatalk

yep
wikitiki said:
Are you guys flashing gapps if the ROM you're installing doesn't have it?
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
ya, well at least I am anyways

wikitiki said:
Are you guys flashing gapps if the ROM you're installing doesn't have it?
Sent from my SGH-T989 using Tapatalk
Click to expand...
Click to collapse
I had tried with and without and did not make any difference.

DennyTek said:
This was happening on any rom I used (Cm 10.2 stable, Cm 11 nightly, AOKP & Super Nexus 3.0 which is Android 4.3) I can't really speak for the stock rom (tmo 4.1.2) since I've never used it for more that 5 minutes, sigh but I'll try it and see if it gives me the same problem :/
Click to expand...
Click to collapse
I just started working on a VZW S3 on T-Mobile service that has this issue. Happens on stock VZW 4.1.2, stock T-Mobile 4.1.2 rom, custom 4.1.2 T-Mobile rom, and stable CM 10.2. Weirdest thing... full wipes including /system inbetween each flash. Changed the modem too. Nothing helps. Pretty sure it's a bad board at this stage.

Cool beans, 0! Having this exact problem, will try your method for my s2, btw which aosp 4.1.2 did u use? Can I get a link? Thanks been having the problem for a few months now and just gave up haha, been super thirsty for that beanstalk kk build
One last thing can u also provide a link to the 4.3 that u used? I really want it to work and want to follow what u did to the , megabyte

[Q] CAN'T FLASH ROMS!! - SGH-I747 stock 4.3 rooted w/ TWRP 2.6 and busybox installed

I've been searching for answers for a while now including blogs and videos on numerous websites, but I can't seem to find any answers. I am typically pretty good at flashing anything on my phone, researching for answers, but I am definitely running into a wall at this point. I will admit, compared to most posts on here, I do consider my self a n00b still, so I will apologize in advance for sounding ignorant.
I have an SGH-I747 stock 4.3 i747ucuemjb stock kernel rooted w/ TWRP 2.6 and busybox installed. SuperSU updated and binaries updated. SuperSU asked to block knox, and by the looks of it (meaning no more error messages of apps being blocked) everything is running great on the phone. My problem is that I can't flash any custom roms on the phone. I've tried just about anything I can think of (from 4.3 to 4.4.2) and TW based, aokp, cynmod, etc.. I'm getting a prop error with either it stating that the rom is intended for d2spr when my phone is obviously a d2att. But mostly all the roms I've tried have been just flat out failing. I can't even do a backup within TWRP, it also fails.
I've had to re-flash my stock 4.3 rom several times this past week b/c if I try to flash anything over the stock rom (keyboard, roms, etc.) the phone buggs out and touchwiz crashes to the point it gives me a black screen with the pop-up indicating that Touchwiz has stopped working and won't let me hit close or ignore. Even after rebooting the phone, that's all I see. At this point, the phone will vibrate in a peculiar pattern (buzz----------buzz-buzz-buzz) and it will repeat that pattern times infinity.
I am desperate for suggestions. I have a strong feeling it's kn*x causing all the problems. I have learned to accept my mistake by installing the OTA 4.3 aka sucker. But I need to be on a custom rom again.
Are there any success stories with specific roms? Are there knox based roms?
Any help will be greatly appreciated.

I had a similar issue this week....this is what I did after trying a number of things. Mine is finally up and working, and I don;t know for sure if this is what caused it to work or not....but its worth a shot. I formatted the internal data, wiped cache, wiped dalvik....I did all of this about three times each. I then flashed the mjb bootloader and modem, wiped cache, wiped dalvik, then I flashed the AOCP ROM.....finally I was able to use my phone. After I got that ROM up and running I then went back and tried flashing other ROMS I previously couldn't..they all work now. I am not sure why, but it worked, could just be coincidence. I used CWM for recovery BTW.

Flashing the boot loader may have done the trick. That's the only thing I haven't tried bc I keep reading warnings about potentially bricking the phone when flashing the boot loader. Are you on a sgh-i747 also? If so, what bootloader did you use?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

Castillo2.0 said:
Flashing the boot loader may have done the trick. That's the only thing I haven't tried bc I keep reading warnings about potentially bricking the phone when flashing the boot loader. Are you on a sgh-i747 also? If so, what bootloader did you use?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Yes i have the sgh-i747...and I flashed the MJB bootloader...so I can't go back to any ROM before 4.3.

Yeah i had a very similar issue too. I was on TWRP as well but then i switched to cwm and everything works fine now. I too am on the updated bootloader but you can still flash 4.1.2 roms that don't contain a bootloader. I'm currently running hyperdrive which is 4.1.2 based, no problems at all.
Sent from my SGH-I747 using Tapatalk

Replacement GS3

I have received a replacement GS3 2 days ago. I rooted the phone no problems and it came with MK3 already on it. But no matter what rom I flash, they all cause a lot of random reboots and lockups. TW and CM based roms ive tried with the same results. I do multiple wipes before installing any rom so I know that cant be the problem. It got so annoying that i just flashed the stock tar in odin even though i hate not being rooted. Can anyone shed some light on this?

cbond007 said:
I have received a replacement GS3 2 days ago. I rooted the phone no problems and it came with MK3 already on it. But no matter what rom I flash, they all cause a lot of random reboots and lockups. TW and CM based roms ive tried with the same results. I do multiple wipes before installing any rom so I know that cant be the problem. It got so annoying that i just flashed the stock tar in odin even though i hate not being rooted. Can anyone shed some light on this?
Click to expand...
Click to collapse
Are you flashing 4.3 TW ROMs? Do you format system before flashing the ROMs (if they do not say that they do it for you)?

Yes, I'm flashing 4.3 roms. I do wipe the system, I don't know if that is the same as formatting the system though(?)
kennyglass123 said:
Are you flashing 4.3 TW ROMs? Do you format system before flashing the ROMs (if they do not say that they do it for you)?
Click to expand...
Click to collapse

cbond007 said:
Yes, I'm flashing 4.3 roms. I do wipe the system, I don't know if that is the same as formatting the system though(?)
Click to expand...
Click to collapse
In CWM the option is format /system. Is wipe system an option in TWRP? And when you flashed the ROMs and the FCs show up, have you tried a factory data reset to clear all data?

Yes, in TWRP in the wipe options, (wipe system) is an option. I haven't gotten any FC's on the 4.3 roms i were flashing. Moar's rom is the main one i used after i got the replacement. Wicked's rom in recovery when I tried to flash would always say unable to mount \system. I can flash CM 11 nightlies fine, but they just have too many random reboots for my liking. I havent tried to factory reset after flashing a rom yet though.
kennyglass123 said:
In CWM the option is format /system. Is wipe system an option in TWRP? And when you flashed the ROMs and the FCs show up, have you tried a factory data reset to clear all data?
Click to expand...
Click to collapse

cbond007 said:
Yes, in TWRP in the wipe options, (wipe system) is an option. I haven't gotten any FC's on the 4.3 roms i were flashing. Moar's rom is the main one i used after i got the replacement. Wicked's rom in recovery when I tried to flash would always say unable to mount \system. I can flash CM 11 nightlies fine, but they just have too many random reboots for my liking. I havent tried to factory reset after flashing a rom yet though.
Click to expand...
Click to collapse
The thing is with Knox in the bootloader you are stuck with and the warranty bit in the secondary bootloader you need to stick with 4.3 and above ROMs as they include compatible kernels. Your options are more limited now than they were. If the Wicked ROM is 4.3 you might try flashing with CWM.

Cool. I will try it with CWM. This sucks because my replacement phone came with Knox already on it. I just wish CM 11 roms werent so buggy on my phone so I could stick with that. Thanks for all your help.
kennyglass123 said:
The thing is with Knox in the bootloader you are stuck with and the warranty bit in the secondary bootloader you need to stick with 4.3 and above ROMs as they include compatible kernels. Your options are more limited now than they were. If the Wicked ROM is 4.3 you might try flashing with CWM.
Click to expand...
Click to collapse

cbond007 said:
Cool. I will try it with CWM. This sucks because my replacement phone came with Knox already on it. I just wish CM 11 roms werent so buggy on my phone so I could stick with that. Thanks for all your help.
Click to expand...
Click to collapse
I would also suggest trying Philz Touch recovery instead of CWM or TWRP.
http://forum.xda-developers.com/showthread.php?t=2446393
---------- Post added at 10:36 AM ---------- Previous post was at 10:25 AM ----------
If you do decide to try Philz (highly recommended!), the option for wiping prior to a ROM install is under Wipe Data/Factory Reset and then choose "Clean to Install New ROM" this will take care of everything you need to start properly. CM11 has run flawlessly for me since its release in early December, but I also am Knox-free. I don't believe that should make a difference though, sounds more like you are not getting a good install, as @kennyglass123 is suggesting. Additionally, some users find that you need to let the ROM "settle in" before doing anything. This means flash just the ROM, and once it boots up don't do anything-no WiFi setup, no fiddling around with apps, nothing for a few minutes. Then, boot back into recovery, flash GApps, boot back into system, and let it sit for a few minutes more. Then, go ahead and setup WiFi connection, Google account, etc.

Random reboots with custom ROMs

Hi All
I've been having such trouble flashing custom ROMs on my Samsung Galaxy Tab Pro 10.1 WiFi SM-T520. I was sucessfully able to flash TWRP 2.8.7 via odin on the device. However, I've tried several ROMs (CM11, 12, 12.1, Unofficial Liquidsmooth) each with their own issues but whichever is able to be flashed always ends up with random startup reboots. I cannot for the life of me figure out why or what is the reason. If I flash back to stock Samsung firmware, everything is fine, works perfectly but no custom firmware.
CM12.1 out right hangs during install in TWRP. The only way I was able to install it is via Cyanogen Recovery which I flashed via odin then attempted to install the rom but even still ends up in random reboots during first bootup and a few times during optimizing apps.
Just a note, I have been doing full wipes (cache, data, system) prior to flashing the ROMs. I don't know what else to do. CM12.1 works really great and smooth but cannot use it because of these random reboots. Can anyone shed some light so I can have a successful flash?
ALSO, I would like to note one suspicion I have and that is my tablet came preloaded with KOT49H.T520UEUAOD1 (T520UEUAOD1_T520XARAOD1_XAR) Samsung Firmware Build. I wonder if perhaps something with this latest build shipped is causing my troubles but am not sure.
Thanks in advanced!

Try booting back to recovery immediatly after new rom flash and perform factory reset and it ahould fix it in most cases.
Sent from my LG-D800 using XDA Free mobile app

I tried the factory reset suggestion but unfortunately did not make a difference.

Are you restoring any backups after flashing? I have been having the same issue, since flashing back to stock. I didn't like stock so I went back to CWM 12.1, which worked flawlessly before. now having random reboots, and the longer I leave it on my system, it's takes longer and longer to wake each time. The only difference between now and the first time I flashed, is, this time I restored a backup! I to, wipe before and after flashing!

Mossey said:
Are you restoring any backups after flashing? I have been having the same issue, since flashing back to stock. I didn't like stock so I went back to CWM 12.1, which worked flawlessly before. now having random reboots, and the longer I leave it on my system, it's takes longer and longer to wake each time. The only difference between now and the first time I flashed, is, this time I restored a backup! I to, wipe before and after flashing!
Click to expand...
Click to collapse
No backup/restores involved for me. Are you still experiencing this issue with CM12.1 or was restoring the backup the problem in your situation?
I am wondering if perhaps the bootloader version that is based off of the latest official stock ROM that was released in April/May 2015 has something to do with my issues. Is there anyone that was on the latest stock Samsung ROM that has been able to successfully flash a custom ROM and use it in a stable way (short of minor CM bugs)?