[Q] First time installing custom ROM on S4 - Thoughts & Questions - Verizon Samsung Galaxy S 4

Hi all,
This is the first time I've tried installing a custom ROM on my VZW S4 (i545) (MDK firmware. Yes, I held out on the OTA since May). I've got a few thoughts and a couple of questions I was hoping could be addressed. I consider myself familiar with flashing ROM's and whatnot, so I won't need hand-holding steps in answer to my questions.
Some info:
VZW S4
MDK Firmware
Recovery: OUDhs CWM Touch Req0very v1.0.3.5
I haven't taken any OTA since I got the phone back in May. This leads me to believe (correct me if I'm wrong) that I'm on Android 4.2.2?
Current ROM: AOKP Nightly Build for 10/31/2013 (MR2)
Thoughts: Holy hell, this ROM is BLAZING fast. I am missing a few features, but none I use regularly (I don't use any of the TouchWiz "smart" features. Damn battery hogs). I was able to flash this over and install GAPPS without any problems. Loading time is incredible, and I love how clean the interface is.
Questions:
Can anyone help me figure out why I cannot install CM10.2? Not sure if that's because I downloaded the wrong version or something, but after flashing it, the screen stays stuck at the Galaxy S4 logo and doesn't move. Maybe I didn't wait long enough, but it surely didn't move in any reasonably expected time (AOKP, by comparison, loaded probably <1 minute). Any thoughts on why this might be? I really want to try CM10.2, so perhaps I should try a different build?
Another question/concern: I downloaded a few different ROMs last night -- CM10.2, AOKP and st0ckdr0id. AOKP installed fine, CM10.2 froze up, but when I installed st0ckdr0id (after wiping out, of course), I got what I think is referred to as a kernel panic. The message was similar to "This phone has software installed on it that Verizon Wireless has determined to be unsafe. Please power off the phone and take to the nearest Verizon Wireless store for help". In the top-left corner, it had in bold RED letters "Kernel secure: FAIL" (or similar wording). I fixed this by booting back into recovery, wiping out, and then installing AOKP again. Can anyone help me understand why this happened?
Why is only ~10GB of space still available when I -thought- I wiped out everything?
What I'm really searching for is an AOSP ROM that is very clean and light, but has SOME of the TouchWiz features. Any recommendations?
My phone only shows me as having a 3G connection, where normally I have 4G LTE. Anything I can do to fix this? Is this an issue with the ROM not detecting the right kind of radio? Bug report, perhaps?
I can't mount my external_sd in my CWM anymore. Yes, I used to be able to do it at one point, because I've done an external nandroid backup to it from within CWM in the past (as of October 29th, if the date on the backups is correct). I've read in other Google searches that it has something to do with the formatting of the SD card, but I haven't removed that SD card from my phone in a few months to have adjusted anything to do with formatting. I plugged the memory card into my Linux laptop this morning while diagnosing this and got an error about an unknown exfat partition. Any advice would be greatly appreciated.
Stupid question: Is there a way to -completely- wipe my internal SD card clean of all my current files? I know when I "wipe" /data I can still see all of my files from the previous installation, and I'm not ballsy enough to wipe /sdcard. I guess the question that then coincides with this is if I were able to completely wipe the phone, I assume that would wipe the recovery as well?
Sorry for some of the novice questions -- I have no problem messing with my old TF300T tablet (because NVFlash will save the day), but this is my only phone, only line of communication and SOLE way for me to answer calls for work (24/7 rotating on-call), so it is VERY important to me to ask questions and not go down for more than 1 hour.
Thanks for all help guys, its much appreciated. I hope to be able to test ROMs regularly and maybe start posting video reviews or something, who knows?
Thanks,
Opethfan89

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opethfan89 said:
Hi all,
This is the first time I've tried installing a custom ROM on my VZW S4 (i545) (MDK firmware. Yes, I held out on the OTA since May). I've got a few thoughts and a couple of questions I was hoping could be addressed. I consider myself familiar with flashing ROM's and whatnot, so I won't need hand-holding steps in answer to my questions.
Some info:
VZW S4
MDK Firmware
Recovery: OUDhs CWM Touch Req0very v1.0.3.5
I haven't taken any OTA since I got the phone back in May. This leads me to believe (correct me if I'm wrong) that I'm on Android 4.2.2?
Current ROM: AOKP Nightly Build for 10/31/2013 (MR2)
Thoughts: Holy hell, this ROM is BLAZING fast. I am missing a few features, but none I use regularly (I don't use any of the TouchWiz "smart" features. Damn battery hogs). I was able to flash this over and install GAPPS without any problems. Loading time is incredible, and I love how clean the interface is.
Questions:
Can anyone help me figure out why I cannot install CM10.2? Not sure if that's because I downloaded the wrong version or something, but after flashing it, the screen stays stuck at the Galaxy S4 logo and doesn't move. Maybe I didn't wait long enough, but it surely didn't move in any reasonably expected time (AOKP, by comparison, loaded probably <1 minute). Any thoughts on why this might be? I really want to try CM10.2, so perhaps I should try a different build?
Another question/concern: I downloaded a few different ROMs last night -- CM10.2, AOKP and st0ckdr0id. AOKP installed fine, CM10.2 froze up, but when I installed st0ckdr0id (after wiping out, of course), I got what I think is referred to as a kernel panic. The message was similar to "This phone has software installed on it that Verizon Wireless has determined to be unsafe. Please power off the phone and take to the nearest Verizon Wireless store for help". In the top-left corner, it had in bold RED letters "Kernel secure: FAIL" (or similar wording). I fixed this by booting back into recovery, wiping out, and then installing AOKP again. Can anyone help me understand why this happened?
Why is only ~10GB of space still available when I -thought- I wiped out everything?
What I'm really searching for is an AOSP ROM that is very clean and light, but has SOME of the TouchWiz features. Any recommendations?
My phone only shows me as having a 3G connection, where normally I have 4G LTE. Anything I can do to fix this? Is this an issue with the ROM not detecting the right kind of radio? Bug report, perhaps?
I can't mount my external_sd in my CWM anymore. Yes, I used to be able to do it at one point, because I've done an external nandroid backup to it from within CWM in the past (as of October 29th, if the date on the backups is correct). I've read in other Google searches that it has something to do with the formatting of the SD card, but I haven't removed that SD card from my phone in a few months to have adjusted anything to do with formatting. I plugged the memory card into my Linux laptop this morning while diagnosing this and got an error about an unknown exfat partition. Any advice would be greatly appreciated.
Stupid question: Is there a way to -completely- wipe my internal SD card clean of all my current files? I know when I "wipe" /data I can still see all of my files from the previous installation, and I'm not ballsy enough to wipe /sdcard. I guess the question that then coincides with this is if I were able to completely wipe the phone, I assume that would wipe the recovery as well?
Sorry for some of the novice questions -- I have no problem messing with my old TF300T tablet (because NVFlash will save the day), but this is my only phone, only line of communication and SOLE way for me to answer calls for work (24/7 rotating on-call), so it is VERY important to me to ask questions and not go down for more than 1 hour.
Thanks for all help guys, its much appreciated. I hope to be able to test ROMs regularly and maybe start posting video reviews or something, who knows?
Thanks,
Opethfan89
Click to expand...
Click to collapse
Wow that's a lot. Let's see if we can get you answers.
1. Switch recoveries to twrp 2.5.0.2. I can't stress the importance of the particular version enough. There are others. This is absolutely the most stable. It's what the devs use. I think then your cm issue will be resolved.
Correct way to wipe with twrp.
1.wipe - >factory reset.
2. Advanced wipe - >check system, data, davlik, cache then wipe.
3. The go back to main screen and install rom.
2. Answered by answer one. Lots of people have lots of opinions about the various recoveries. All I can tell you is this is what all the devs use for their recovery. Can't argue with that.
3. Reserved space. It might say you have 16 gigs but a good size chunk is taking merely by formatting. Then the ROM and programs you have installed of course.
4. Honestly they are all freaking great. The aosp roms. You do the answer to number one and you can find out. DU is my fav @ this moment. Followed by beanstalk.
5. Go to mobile networks make sure your network mode is set to cdma +lte/evdo.
6. Answer 1.
7. You don't really want to wipe the entire internal SD card. Sounds good when you think it might screw you if you did it.
Sent from my Nexus 7 using xda app-developers app

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Mightycaptain said:
Wow that's a lot. Let's see if we can get you answers.
1. Switch recoveries to twrp 2.5.0.2. I can't stress the importance of the particular version enough. There are others. This is absolutely the most stable. It's what the devs use. I think then your cm issue will be resolved.
Correct way to wipe with twrp.
1.wipe - >factory reset.
2. Advanced wipe - >check system, data, davlik, cache then wipe.
3. The go back to main screen and install rom.
2. Answered by answer one. Lots of people have lots of opinions about the various recoveries. All I can tell you is this is what all the devs use for their recovery. Can't argue with that.
3. Reserved space. It might say you have 16 gigs but a good size chunk is taking merely by formatting. Then the ROM and programs you have installed of course.
4. Honestly they are all freaking great. The aosp roms. You do the answer to number one and you can find out. DU is my fav @ this moment. Followed by beanstalk.
5. Go to mobile networks make sure your network mode is set to cdma +lte/evdo.
6. Answer 1.
7. You don't really want to wipe the entire internal SD card. Sounds good when you think it might screw you if you did it.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Thanks for your response Mightycaptain! I used CWM as my first ever recovery and am kinda pressed on it, which is why I use it, but I have no issues going to TWRP if that means fixing my issues. Can you elaborate on how to install TWRP in place of my current CWM? I'll do some Googling in the meantime to try to find the answer myself. (I haven't done any flashing or rooting stuff since I got the phone in May!!)
Thanks for your answer in #5. Fixed the issue I was having.
My reason for wanting to wipe the entire internal SD card is there are still files, folders, logs and backups from when I had my previous ROM. I'm having issues restoring my nandroid backup from the night of the 7th so is it at all possible for me to salvage some of my settings, apps and file backups from those existing files? Once I fix my nandroid, I'm going to keep the nandroid backup in a safe place and I ideally want to have a completely clean phone to start from: That means getting rid of all those old files and other nonsense from before. Is this a possibility?
I'm going to spend my time today trying to extract data from my nandroid backups using ROM Toolbox Pro. If that doesn't work, I have a nandroid backup from the 31st that has 99% of the stuff I need so I'll try to restore that. If THAT doesn't work, then I'm going to cry myself to sleep while trying to remember all of my contacts
Wish me luck, and hopefully I can get some answers to my last few questions!
Thanks,
Opethfan89

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opethfan89 said:
Thanks for your response Mightycaptain! I used CWM as my first ever recovery and am kinda pressed on it, which is why I use it, but I have no issues going to TWRP if that means fixing my issues. Can you elaborate on how to install TWRP in place of my current CWM? I'll do some Googling in the meantime to try to find the answer myself. (I haven't done any flashing or rooting stuff since I got the phone in May!!)
Thanks for your answer in #5. Fixed the issue I was having.
My reason for wanting to wipe the entire internal SD card is there are still files, folders, logs and backups from when I had my previous ROM. I'm having issues restoring my nandroid backup from the night of the 7th so is it at all possible for me to salvage some of my settings, apps and file backups from those existing files? Once I fix my nandroid, I'm going to keep the nandroid backup in a safe place and I ideally want to have a completely clean phone to start from: That means getting rid of all those old files and other nonsense from before. Is this a possibility?
I'm going to spend my time today trying to extract data from my nandroid backups using ROM Toolbox Pro. If that doesn't work, I have a nandroid backup from the 31st that has 99% of the stuff I need so I'll try to restore that. If THAT doesn't work, then I'm going to cry myself to sleep while trying to remember all of my contacts
Wish me luck, and hopefully I can get some answers to my last few questions!
Thanks,
Opethfan89
Click to expand...
Click to collapse
Check my post here for twrp 2.5.0.2.
http://forum.xda-developers.com/showthread.php?p=47275165
You can flash it in your current recovery. It overwrites CWM. I would make sure you have a flashable for CWM just in case you need to go back for some reason. Also the backups between those 2 recoveries are not compatible. But I would nandroid with CWM before flashing twrp. I would also change were you recovery is pointing to for storage to the external SD if you haven't already. After you have cut your current backup and past it there. You can use rom toolbox pro to back up your contacts and restore it once you flash a new ROM.
Now as good advice going forward I would add your contacts to your Google account. That way when you flash new stuff or drop your phone in the toilet as soon as you add your Google account to the phone all those contacts will automatically download. But it is always a good idea to use tibu or rom toolbox pro to back up all your apps and seeing and use that after flashing roms to restore apps and settings.
But honestly I'd nandroid, move my contacts to Google, make app backups. Flash twrp. Then start flashing roms. You could be doing it in an hour. After you flash twrp make another nandroid so you have a twrp compatible backup. Then in a day or so of you are happy with everything delete the CWM backups for space.
Edit: as to extracting things from your current nandroid. Not sure if that is possible for one thing it is compressed not sure how that would work unless you are doing a full restore.
Also for future reference with TWRP. When restoring nandroid wipe like your flashing a new rom before restoring.
Sent from my SCH-I545 using xda app-developers app

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Mightycaptain said:
Check my post here for twrp 2.5.0.2.
http://forum.xda-developers.com/showthread.php?p=47275165
You can flash it in your current recovery. It overwrites CWM. I would make sure you have a flashable for CWM just in case you need to go back for some reason. Also the backups between those 2 recoveries are not compatible. But I would nandroid with CWM before flashing twrp. I would also change were you recovery is pointing to for storage to the external SD if you haven't already. After you have cut your current backup and past it there. You can use rom toolbox pro to back up your contacts and restore it once you flash a new ROM.
Now as good advice going forward I would add your contacts to your Google account. That way when you flash new stuff or drop your phone in the toilet as soon as you add your Google account to the phone all those contacts will automatically download. But it is always a good idea to use tibu or rom toolbox pro to back up all your apps and seeing and use that after flashing roms to restore apps and settings.
But honestly I'd nandroid, move my contacts to Google, make app backups. Flash twrp. Then start flashing roms. You could be doing it in an hour. After you flash twrp make another nandroid so you have a twrp compatible backup. Then in a day or so of you are happy with everything delete the CWM backups for space.
Edit: as to extracting things from your current nandroid. Not sure if that is possible for one thing it is compressed not sure how that would work unless you are doing a full restore.
Also for future reference with TWRP. When restoring nandroid wipe like your flashing a new rom before restoring.
Sent from my SCH-I545 using xda app-developers app
Click to expand...
Click to collapse
Hey thanks again for your quick response!! I'm glad I checked this first, because I'm in my ROM Toolbox app atm and it has an option to let me install TWRP 2.5.0.2 from within the app itself. Should I do it this way?
I will be adding all contacts to Google from now on. Unfortunately I saved all my stuff to my Verizon backup assistant so I just need one last shot at my phone to save all those contacts (manually, if I must) and be able to enter them onto the new ROM.
By "flash it in your current recovery" I assume you mean download the .zip, place it on my internal /sdcard, and then "flash" it just like I would flash a ROM, right?
I'm sure I have a "flashable" for CWM somewhere but like I said, I haven't done any of this stuff on this phone since I first bought it, and things have changed so much with everyone having OTA's and being locked out that I'm not sure what process is the same or what has changed. I can't afford to lose this phone so I'm hesitant to go balls to the wall to try things.
I will try the things you've listed here. Seems like a nandroid + TiBu + Google Contacts is my best bet to get up and running each time I decide to try a new ROM.
Thanks again!

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opethfan89 said:
Hey thanks again for your quick response!! I'm glad I checked this first, because I'm in my ROM Toolbox app atm and it has an option to let me install TWRP 2.5.0.2 from within the app itself. Should I do it this way?
I will be adding all contacts to Google from now on. Unfortunately I saved all my stuff to my Verizon backup assistant so I just need one last shot at my phone to save all those contacts (manually, if I must) and be able to enter them onto the new ROM.
By "flash it in your current recovery" I assume you mean download the .zip, place it on my internal /sdcard, and then "flash" it just like I would flash a ROM, right?
I'm sure I have a "flashable" for CWM somewhere but like I said, I haven't done any of this stuff on this phone since I first bought it, and things have changed so much with everyone having OTA's and being locked out that I'm not sure what process is the same or what has changed. I can't afford to lose this phone so I'm hesitant to go balls to the wall to try things.
I will try the things you've listed here. Seems like a nandroid + TiBu + Google Contacts is my best bet to get up and running each time I decide to try a new ROM.
Thanks again!
Click to expand...
Click to collapse
Understand the hesitancy completely. But with nodding comes risk. It is always about whether you can accept the worst possible outcome.
Rom toolbox pro flashing recovery? I don't know never tried it.
Yes I would download the recovery. Leave it on SD card reboot to recovery and flash like a rom.
Yes nandroid tibu and saving your contacts to Google is the quickest way to get up and running again.
Sent from my SCH-I545 using xda app-developers app

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Mightycaptain said:
Understand the hesitancy completely. But with nodding comes risk. It is always about whether you can accept the worst possible outcome.
Rom toolbox pro flashing recovery? I don't know never tried it.
Yes I would download the recovery. Leave it on SD card reboot to recovery and flash like a rom.
Yes nandroid tibu and saving your contacts to Google is the quickest way to get up and running again.
Sent from my SCH-I545 using xda app-developers app
Click to expand...
Click to collapse
Mighty, just wanted to report that flashing TWRP 2.5.0.2 from within ROM Toolbox Pro worked like a charm. I'm on TWRP as we speak.
Thank you so much for your responses. If anyone else has anything to add, or a different response to my questions, please do so! In the meantime, I'm going to try to figure out how to get my nandroid backup working...
Cheers!
*EDIT* Made a backup with TWRP (whose interface is bloody phenomenal, btw), flashed CWM and its working like a charm!! Going to try the st0ckdr0id one as well. Still working on getting that nandroid working so I can recover my stuff and get to customizing!