yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
I don't know if Titanium Backup can backup the contacts, I've never tried since you can use the stock contacts app to do it. But I know you can backup the sms messages. But I think you need the pro version to backup those xml files.

CF-Auto-Root can be found in the I9505 original android development section, not the general section as I mentioned earlier. In case you need it.
[Galaxy S 4 Q&A, Help & Troubleshooting] walttheboss:
I've seen this a few times. Samsung fascinate was notorious. Pull battery a few times while on that screen.

If that doesn't work then hold buttons for download mode with battery out. Pop battery in while holding buttons.
[Galaxy S 4 Q&A, Help & Troubleshooting] jerryn70:
Today i tried PC version of Kingroot 3.0 to root SAMSUNG GALAXY S4 i9500 LOLLIPOP 5.0.1 at first it stoped at 19% and something shown in kingroot and stoped rooting , don't know whats the shown msg bcoz PC version is in China Language.

I unpluged and Tried again from starting this time its got SUCCESS! ! ������

SAMSUNG GALAXY S4 i9500 LOLLIPOP 5.0.1 SUCCESSFULLY ROOTED WITH KINGROOT PC VERSION 3.0

Kingroot 4.5 2 has been automatically installed on my device ☺☺☺☺
[Galaxy S 4 Q&A, Help & Troubleshooting] X-Lucky-Messi-X:
I rooted my Galaxy S4 and after I would close an app after using it for 10-15 minutes, the phone would just reboot itself. Any ideas why and can I fix it? Can it be fixed if I flash Cyanogenmod?
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
Knox and root don't get along very well.

Removing knox should fix the random reboot issue. Or you can flash a custom rom. Either option is fine.
[Galaxy S 4 Q&A, Help & Troubleshooting] jerryn70:
After rooting using kingroot desktop version.

Kingroot 4.5 2 app is automatically installed on my device.

My question is, 'is it possible to update that kingroot app to latest version 4.8 ?

If i do so any error will occur or it will avoid the root ?
[Galaxy S 4 Q&A, Help & Troubleshooting] X-Lucky-Messi-X:
But when I installed SuperSu, it asked me to deactivate KNOX, so I clicked Yes and it probably deactivated it. Could something else be a problem?
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
No, you literally have to remove knox from your system.
[Galaxy S 4 Q&A, Help & Troubleshooting] X-Lucky-Messi-X:
Thank you. And how do I remove it? Titanium backup or some other app?
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
Knox is composed of several apps. You should do some research on what knox apps to remove. You could use Titanium Backup or some root explorer.

I also highly suggest doing a backup of everything first
[Galaxy S 4 Q&A, Help & Troubleshooting] Psionatix:
Yeah, all good.

I have thus far managed to install the 5.0.1 stock, I've re-rooted using CF-Auto-Root and I have installed TWRP recovery. Super SU and Titanium Backup worked all as expected.

The only problem I'm having now, is my Wifi isn't working. As soon as I turn it on, it turns itself off. When I did the initial stock rom flash, I had used TWRP to wipe reset to factory settings.

I've searched to see that this is a common problem, but once again, there seems to be a lot of different fixes and I can't seem to work out which one is the best fix for my particular device?

Edit: The rom I flashed was the 5.0.1 rom from sammobile, it was listed as under the GT-i9505. Was for Australia, but wasn't for a particular carrier. My phone isn't locked to a provider, so I went with the XSA version. Should I not have? I've tried clearing the cache partition.

Edit: I also tried a couple of other things but still can't get it working. I have also noticed that, if I change my lock screen from swipe to pin, it says it is changed, but it doesn't seem to save these settings. not sure if it's related.

I used one of the dialer # codes and found:

AP: I9505XXUHOJ3

CP: I9505XXUGNH6

CSC: I9505XSAHOJ1

The rom I flashed was "I9505XXUHOJ3_I9505XSAHOJ1_XSA" - was this the issue, did I flash the wrong rom, or do I just need to re-flash?
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
Since the phone is not locked you should be able to use any rom out there.

When I first rooted my S4 people suggested that flashing a 4g modem would fix the wifi issue. Problem is, stock roms already contain modems (gsm and 4g).

Sometimes, flashing the same rom twice can fix stuff. So give it a try.
[Galaxy S 4 Q&A, Help & Troubleshooting] Psionatix:
Where can I find the modem files to flash?

I have heard flashing just the modem will work. Apparently it is an issue with odin not flashing them through the roms.

I just can't find the right files!

Not home right now, but will try re-flashing later on.

Edit: Found this thread for modems. Can I use any of these? Do they have to be specific to the rom i used? How do i tell?

How do i know if they're for 5.0.1? I find the lack of noob-friendly information in guides is where I really get confused. Most guides just leave me with more and more questions necessary to confirm certain things.

Something I may have neglected to mention, may be relevant.

I have a constant notification saying something about nauthorized activity being detected. Says to restart, but when I do, it shows up again eventually.

The SD card keeps unmounting itself too.
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
I think the list goes from newest to oldest. But the first modem on the list isn't actually the newest one. The latest modem is OJ4 I think. You could try flashing that OH modem. Make sure to flash both, GSM and LTE modem. You actually need only the LTE one for your wifi problem. But having different GSM and LTE modems might conflict, I don't know.

You could also try digging the thread for the latest modem. But you will have some digging to do. You could search for the term OJ4 or you could look through the last pages.

As for your notification, I never heard of such a thing before. You mentioned you did a factory reset with TWRP. Keep in mind that the factory reset only wipes /data, /cache and /dalvik. It will not wipe the /system partition. So you basically did not fully wipe. The error could be related to that.

Or maybe you have some malicious software on the sdcard, reason for why it keeps ejecting. You know, the system trying to protect itself..
[Galaxy S 4 Q&A, Help & Troubleshooting] Psionatix:
Thanks for the heads up on the modem, I might take the chance at searching through the thread a little later. I'm pretty good at searching. I'll note that I should flash both GSM and LTE!

Thanks for the heads up on the wipe too, maybe I'll do a manual selection and wipe and try a re-flash tomorrow morning. It's late Saturday here and my phones battery is too low, needs the overnight charge.

If the re-flash doesn't work, then I'll proceed with checking through that thread for the latest modem. As for the SD card, I only used it to put my nandroid backups and titanium back ups on so that they were external from the internal storage. I've done some searching on this particular issue and it seems to be related to the AndroidLogService and/or Knox. But, if it is something on the SD card, that might explain why it keeps un-mounting itself too. I have since formatted the SD card from the phones menu/option, so I'll see if the error stops since then!

I'll keep y'all updated on what I do and whether or not it works! I feel like I'm becoming quite experienced with al of this after just diving into it all, so I've come out learning quite a bit. I almost feel like, if anyone ended up in similar situation to myself, I'd be able to guide them through everything I did in an attempt to assist them.

Quick edit: Thanks again for your on-going assistance! Highly appreciated.

Small update: I managed to find the XXUHOJ4 boot loader and modem on this page of the thread. Not sure if it's the gsm or lte, or both. But, at least I have these saved as a back-up option if the re-flash doesn't work in the morning!
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
It's both, the gsm and lte modem.

Note: lte modem is also called wifi fix.

You can use the instructions found here to flash the modem and bootloader. I used those instructions successfully several times. If, by any chance, the modem and bootloader did not change, flash again. As I mentioned before, sometimes it needs multiple flashes to rewrite everything.
[Galaxy S 4 Q&A, Help & Troubleshooting] X-Lucky-Messi-X:
Is jfltexx the same as jflte on GT-I9505 or is there a difference?
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
jflte is the unified branch. Meaning it is for all GT-I9505 models.
[Galaxy S 4 Q&A, Help & Troubleshooting] X-Lucky-Messi-X:
So I want to install custom recovery TWRP to flash Cyanogenmod on my Galaxy S4, but I need to have an unlocked bootloader. Then I tried to backup apps with titanium Backup, but it says '' Batch backup interrupted : Insufficient free storage space. Is there another way I can backup data or do I even need an unlocked bootloader? Thank you.
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
[MENTION=7199781]X-Lucky-Messi-X[/MENTION], what device do you have? Only Verizon and Sprint lock their bootloaders I think.

I recommend backing up only user installed apps. Systems apps can cause problems if restored.
[Galaxy S 4 Q&A, Help & Troubleshooting] X-Lucky-Messi-X:
So, I haven' t done anything, I just powered off my phone and went in stock recovery mode and chose to reboot. After that it wouldn' t boot. Just the flashing Samsung logo. It' s already rooted. Should I flash CF auto root, flash new stock ROM? Please help. I also can' t enter safe mode. Please, please help. It' s galaxy s4 GT-I9505

Edit: I went back to recovery mode, I chose to wipe cache parition since there was no dalvik cache (I think that' s only in TWRP or CWM) and rebooted the system. The problem is still the same- won' t boot back up. Should I try with flashing CF- auto root even though the phone is rooted? Or flash a new stock ROM?
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
I don't think cf-autoroot will help.

Either factory reset or flash a new rom.

What was the last thing you did before rebooting the phone?
[Galaxy S 4 Q&A, Help & Troubleshooting] X-Lucky-Messi-X:
Well, nothing too important. I tried to backup data with titanium backup, but it didn' t work, doing regular stuff. I also downloaded TWRP recovery, but I didn' t install it. Basically doing the regular stuff. I think that the problem is KNOX interferring with root, because sometimes my phone just randomly reboots. Last time when it was in bootloop, I rooted it with Kingroot and after it rooted, it just powered off and couldn' t boot all the way. Now I ' ll flash TWRP via Odin and try to wipe cache and dalvik cache. If that doesn' t work, I ' ll flash a new stock ROM. Thank you.
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
Kingoroot isn't that good. It may have been a viable choice some time ago, but cf-autoroot is the way to go.

Whatever happened messed up your boot.
[Galaxy S 4 Q&A, Help & Troubleshooting] schnidex:
So asking on this thread is pretty much my last resort. Samsung UK "support" have refused to fix my S4 as it's out of warranty (because it was made in 2013), even if I offer to pay for a repair.

However, I'm convinced this is virtually a fully working phone and the answer is out there. The device is an I9505 bought from Hong Kong, imported to the UK. I believed the seller may have tested it with a non-UK SIM before shipping it but have no proof. When the phone arrived, we inserted a UK SIM - on first boot, the region setting in the phone was the UAE (even though I'm convinced we set it up for the UK). The phone never got a 3G or 4G signal. It shows network bars most of the time, but most of the time is never connected. The best you get is occasional connection to the EDGE network. Usually the phone is not actually registered on the network.

So I flashed the very latest UK firmware with Odin. The software IMEI matches the IMEI on the hardware. I've tried three different network SIMs. The situation is still the same. This is what I get from Phone INFO Samsung:

I've noticed the Knox warranty has been tripped since I've tried another suggested fix today. I wasn't warned that would happen, and I've only used official stock firmwares. I don't know if that makes it any worse, or instead helps now and gives me any other options.

I am so frustrated by this, as I'm happy to pay for a repair rather than have to buy a new phone. But taking it to any regular repair store is pointless because they just say things like "oh it's blocked by the network" or "we'll flash [flush, in one case!] the firmware and that'll fix it" which of course I've already done.

Can anyone help me? The answer must be out there. Samsung probably have it. But they don't want anyone else to play with their toys.
[Galaxy S 4 Q&A, Help & Troubleshooting] jimbomodder:
U say Samsung refuse to cover it even thou it clearly stats manufactured in 2015?
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
If it was bought from Hong Kong, it may be one of the chinese variants. Try flashing a chinese rom variant.

Or a custom rom. Since knox is tripped, there is no reason not to.
[Galaxy S 4 Q&A, Help & Troubleshooting] schnidex:
That's exactly what they told me. And I'm furious because I didn't even notice that at the time, and now I've (somehow) tripped Knox in trying some other suggestions. So it's not even like I can go back there now.
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
Samsung provides a 2 year warranty service from the date the device was released and not the date of purchase.

Reason why they were sued few days ago by some dutch association.
[Galaxy S 4 Q&A, Help & Troubleshooting] jimbomodder:
Says different here. And they being sued due to lack of updates
[Galaxy S 4 Q&A, Help & Troubleshooting] Psionatix:
This is really strange. I re-flashed and the wifi still won't turn on, so I flashed the combined modem.tar and the bootloader (I9505XXUHOJ4) - it did change / update, but the wifi still won't turn on. I'm at a real loss here and am tempted to just restore my 4.4.2 backup.
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
In the same article they mention something about the warranty period starting at the day of purchase, not at the day of release. I doubt they are reffering to updates with that statement.

---------- Post added at 12:05 AM ---------- Previous post was at 12:01 AM ----------

Restoring the backup implies downgrading. That is a whole different kind of problem, since you updated the rom to lollipop, your bootloader is also lollipop and it prevents going back to kitkat bootloaders.

You can, of course downgrade, but it's not as easy as flashing or restoring the rom.

Somebody mentioned in another thread that his WiFi works only with a custom kernel. So I guess the next best thing to do would be to try a custom kernel. After all, the kernel controls the hardware.
[Galaxy S 4 Q&A, Help & Troubleshooting] Psionatix:
Ah dang, so there wasn't really any point in making the backup in the first place then?

I guess I'll keep looking around for a fix on the wifi then. Both wi-fi and mobile hotspot just don't enable. I've tried various fixes, removing the battery, restarting, deleting the /system/etc/wifi/wpa_supplicant.conf.

there was no wpa_supplicant.conf in /data/misc/wifi - just a folder.

Guess I'll see what I can find though, I really need the wifi working, ahah!

Thanks so much for your help through all of this so far!

Edit: Bluetooth is working fine. So can't be a hardware issue, which is good to know.
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
As I said, you can try and downgrade, there are guides on the forum, then restore the backup.

Or you can try the custom kernel variant. There are several kernels for stock roms.
[Galaxy S 4 Q&A, Help & Troubleshooting] nazmul789:
s4 touchscreen

Hi, I think I flashed an incompatible custom rom somehow on my s4 i9505 running 5.0.1. In doing so my touch screen is completely not working. I tried flashing a stock rom, still no luck. When I reach the set up screen, language and accessibility, i cant click next. etc.. Only the physical, menu and back buttons work. I was wondering if there is a way to fix this clumsy mistake, or do I take it to a shop to fix...

please reply to me ASAP,

Thanks in advance.
[Galaxy S 4 Q&A, Help & Troubleshooting] Psionatix:
I'm confused, isn't the kernel just the rom? Does it have to be a custom one? I tried the i9505VAUHOJ3 rom and wifi still isn't working.

Why should I have to use a custom one? Shouldn't stock just work? It's really bothering me, I just want the wifi working again.

Also, all the guides I find regarding a downgrade.. They all say I can just wipe everything and then flash the 4.4.2 with odin.
[Galaxy S 4 Q&A, Help & Troubleshooting] Firefly__:
So I'm new to this whole thing, but I have my s4 SGH-I337M rooted, I'm now wondering how to install a stock-ish android, and remove bloatware. Also without loosing my apps and stuff.

Thanks.

P.S. I'm use to Iphones with cydia so the more noob friendly you could make it the better.

Also can you resell unlock codes? or are the specific to the imei?
[Galaxy S 4 Q&A, Help & Troubleshooting] jerryn70:
Anyone help me to install xposed installer on my s4 i9500 rooted using kingroot desktop version.
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
Roms and kernels are different things. Generally a rom comes with a kernel, also reffered to as stock kernel.

The kernel controls the hardware. A custom kernel can improve performance, battery and may, or may not, fix your WiFi.

Or go back to 4.4.2. Those are the only options left.

---------- Post added at 09:33 AM ---------- Previous post was at 09:29 AM ----------

Stock-ish as in stock Samsung rom or stock android rom?

Stock Samsung rom is the one you are probably running right now. Stock android is android how google release it, without many features and modifications.

Either way, you will have to erase all your data before flashing any rom. It is recommended, to avoid bugs.

But you can backup your apps and data using titanium backup.

---------- Post added at 09:34 AM ---------- Previous post was at 09:33 AM ----------

Did you wipe everything before flashing?

---------- Post added at 09:35 AM ---------- Previous post was at 09:34 AM ----------

Kingoroot may cause problems.

What android version are you running?
[Galaxy S 4 Q&A, Help & Troubleshooting] Psionatix:
Have since been looking into custom kernels, all the kernels I find don't seem to be compatible with stock roms? The closest I found was this one but it doesn't seem to support stock.

UPDATE: I HAVE NO IDEA WHAT I DID, BUT ITS WORKING.

All day I've just been re-flashing different modems and roms. All of a sudden, I just re-flashed the 5.0.1 i9505XXUHOJ3 rom and wifi is now working, I didn't do anything different and the modems are still i9505XXUHOJ4.

I didn't touch the kernel at all. It just works this time without explanation.

THANK YOU SO MUCH FOR EVERYTHING.
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
Imperium kernel is for stock roms. Hulk kernel also has a touchwhiz version.

There also is an Echo kernel. But the Echo team left this forum. They now have their own forum. Just google echo rom.

Alternatively you can flash the rom together with the kernels. Imperium rom comes bundled with the imperium kernel.
[Galaxy S 4 Q&A, Help & Troubleshooting] jangam.raj:
Can anyone tell me where will i get official LP for my SGS4- I9505 Baseband version I9505XXUGNG2??

Please help
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
Sammobile.com.
[Galaxy S 4 Q&A, Help & Troubleshooting] jangam.raj:
[/QUOTE]Sammobile.com.

Thanks but i could find only 4.4.2 against my Baseband number. is there any other way i could get it(Official update)? Can i use 5.0.1 of any other Baseband version for my phone or Custom rom is the only option left for me now??

---------- Post added at 05:01 PM ---------- Previous post was at 04:57 PM ----------

It was mentioned that latest is 4.4.2 against my baseband number. can i try LP update of anyother baseband version or custom rom is the only way left for me??

Please Help
[Galaxy S 4 Q&A, Help & Troubleshooting] nazmul789:
Yes I wiped it fully

Hi, I think I flashed an incompatible custom rom somehow on my s4 i9505 running 5.0.1. In doing so my touch screen is completely not working. I tried flashing a stock rom, still no luck. When I reach the set up screen, language and accessibility, i cant click next. etc.. Only the physical, menu and back buttons work. I was wondering if there is a way to fix this clumsy mistake, or do I take it to a shop to fix...

please reply to me ASAP,

Thanks in advance.
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
You don't have to check it with your baseband. You input your phone model (GT-I9505) then select your country and carrier. It will give you the latest software.
[Galaxy S 4 Q&A, Help & Troubleshooting] X-Lucky-Messi-X:
So my galaxy s4 GT-I9505 wont reboot, it gets stuck on flashing Samsung logo. I wiped cache and dalvik cache and tried to reboot, but that didn' t work. Now my only option is to flash stock ROM. Do I have to do a factory reset or anything else before flashing it via Odin? And what about qfuse and KNOX?
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
Try flashing the stock rom again. Some times it takes several flashes for all the partitions to be completely rewritten.

---------- Post added at 12:24 PM ---------- Previous post was at 12:20 PM ----------

Wiping is always recommended when switching roms, to avoid bugs and conflicts with old data.

Knox will not pe triggered if the rom you are flashing is original stock rom from Samsung.
[Galaxy S 4 Q&A, Help & Troubleshooting] schnidex:
Thanks for this. I've tried one custom rom so far - absolutely no difference. I guess I could try a Chinese rom variant but.. won't it be heavily in Chinese in some form or other?

Ideally I'd like to try finding someone with a Z3X box in London and see if they can region unlock it and if that's the problem, but I haven't found anyone so far.

This is so frustrating. The phone is so close to working, I just know it!
[Galaxy S 4 Q&A, Help & Troubleshooting] X-Lucky-Messi-X:
So, factory reset through recovery, then download mode and flash stock ROM via Odin? Will it work because my phone has KNOX warranty to 0x01?
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
It may be chinese, but surely it will have english language. And if it actually works.. Well, then you know what caused your issues.

---------- Post added at 12:44 PM ---------- Previous post was at 12:42 PM ----------

Yes, basically.

Knox has nothing to do with this. It won't affect the flashing process. Knox is there just to show Samsung if the user tampered with the software or not.
[Galaxy S 4 Q&A, Help & Troubleshooting] jangam.raj:
so you mean to say Baseband version doesn't matter. i can use LP 5.0.1 of any baseband for my I9505 Model??
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
If your phone is carrier locked then you should use only roms from that carrier. But the baseband doesn't really matter. It will update with the rom.
[Galaxy S 4 Q&A, Help & Troubleshooting] jangam.raj:
I am using a unlocked phone in India. there are no carrier restrictions. Thanks for your help bro. Can you please guide me through it in short (How to update it to 5.1 or 5.0.1)??

I have done the flashing stuff on my sony xperia L many times hence i am familiar with Nandroid backup, root and other related activities. A brief on updating my SGS4 to 5.1 would also serve my purpose.

Thanks
[Galaxy S 4 Q&A, Help & Troubleshooting] Rhoban:
Samsung stock roms are flashed through Odin. I, myself, am not familiar with the method as I've never flashed one my phone S4. One month from when I bought the phone I switched roms and never went back to stock.

But I'm sure you can find various guides on google about flashing stock rom on the S4.

As for the custom roms, it's the same procedure as on other models: get a custom recovery, get the rom, the gapps and flash.

You better get used to Odin, as it is required for rooting and installing a custom recovery, or updating your modem and bootloader.