[Q] lollipop official stock problems - Galaxy S 4 Q&A, Help & Troubleshooting

Hi im a bit of a noob when it comes too this flashing business but i managed to update my i9505 to lollipop using odin and the official stock rom but the problem i have now is my network signal is now terrible where it was good before is ther anyway that a noob like me can fix this issue? Im in uk on giffgaff (o2)
i have never rooted my s4 before and if some one has a noob guide for rooting from lollipop so i can custom rom it up i might give that a look too, I wouldnt mind a nice slim custom rom with a few extra tweeks and without all the google and samsung rubbish that comes standard..
Thanks
P.s sorry for all the questions and sorry if this is in the wrong section

The signal problem is probably caused by the modem.
You have to flash the latest modem for your phone, country and carrier.
If you already are on the latest modem then a lollipop modem might help.
Here you can find a guide on how to root lollipop.
If you want a slim rom you better try CM12 or GPE. If you like touchwiz then look for a touchwiz based lollipop rom around the forum.

clizzle said:
Hi im a bit of a noob when it comes too this flashing business but i managed to update my i9505 to lollipop using odin and the official stock rom but the problem i have now is my network signal is now terrible where it was good before is ther anyway that a noob like me can fix this issue? Im in uk on giffgaff (o2)
i have never rooted my s4 before and if some one has a noob guide for rooting from lollipop so i can custom rom it up i might give that a look too, I wouldnt mind a nice slim custom rom with a few extra tweeks and without all the google and samsung rubbish that comes standard..
Thanks
P.s sorry for all the questions and sorry if this is in the wrong section
Click to expand...
Click to collapse
Is your phone branded or unlocked? Coz this is very important. UK(O2) still without lollipop update. This is the possible reason that you are receiving weak network signal.

Joku1981 said:
Is your phone branded or unlocked? Coz this is very important. UK(O2) still without lollipop update. This is the possible reason that you are receiving weak network signal.
Click to expand...
Click to collapse
sorry for late reply... its unbranded unlocked version
i will try and look for the latest modem and give that a try tonight.... Think i might root and put a custom rom on in the end anyway as there is some minor bugs on the lollipop rom that its annoying me
Thanks for the help guys i will let you know how i get on

so im gonna flash this XXUHOB8 + Fix WIFI hopefully it might help as i was on XXUHOB7 before?

clizzle said:
so im gonna flash this XXUHOB8 + Fix WIFI hopefully it might help as i was on XXUHOB7 before?
Click to expand...
Click to collapse
Install this APP (cover serial number and IMEI) and add some screenshots for avoid problems.

sorry it wont let me upload as i dont have more than 10 posts what do you need to know and il tell you what it says

I'm also experiencing someone what of the same problem I've rooted/Un rooted a couple times, I'm back at a stock version and it seems to be ok.

Related

[Q] LTE Support on Rooted Note 3 Ireland

Hi all,
First of all I'm sorry if this isn't the right place for this thread, it just seems like the related threads are in this forum.
First of all I have the international unbranded version of the note three (SM-N9005), which I rooted in order to use VPN. I did this using the chainfire method which of course tripped the knox flag, I'm not griping about that because I don't really care about the warranty, just giving facts.
This then prevents the phone from checking for updates properly saying "device has been modified" or something like that.
I'm on three ireland and they very recently switched on 4g/lte network support but you need to accept an ota update to enable it. Therein lies my problem, I can't accept an ota update.
I would have no problem unrooting to accept an update, but that doesn't reset the knox flag and my phone will still show up as modified and considering the amount of effort I would have to go through to unroot just to end up on the same situation as I'm in already is not worth it.
I have tried the viaero 4g toggle app but this just gives a black screen for me. I also tried the persist.radio.lteon.xml fix but I couldn't find that file to change the setting. These solutions suggested here http://forum.xda-developers.com/showthread.php?t=2468624&page=2
So my questions:
Is there any way to flash some sort of firmware unofficially to give lte support?
If I flashed a custom rom would that give me lte support? Or do I need to flash the official 3 Ireland lte firmware first?
If that will work, can anyone recommend a rom to install?
Finally has anyone managed to get themselves out of a similar situation yet?
Hope somebody can help,
Thanks for reading
Barry
bazzertron said:
Hi all,
First of all I'm sorry if this isn't the right place for this thread, it just seems like the related threads are in this forum.
First of all I have the international unbranded version of the note three (SM-N9005), which I rooted in order to use VPN. I did this using the chainfire method which of course tripped the knox flag, I'm not griping about that because I don't really care about the warranty, just giving facts.
This then prevents the phone from checking for updates properly saying "device has been modified" or something like that.
I'm on three ireland and they very recently switched on 4g/lte network support but you need to accept an ota update to enable it. Therein lies my problem, I can't accept an ota update.
I would have no problem unrooting to accept an update, but that doesn't reset the knox flag and my phone will still show up as modified and considering the amount of effort I would have to go through to unroot just to end up on the same situation as I'm in already is not worth it.
I have tried the viaero 4g toggle app but this just gives a black screen for me. I also tried the persist.radio.lteon.xml fix but I couldn't find that file to change the setting. These solutions suggested here http://forum.xda-developers.com/showthread.php?t=2468624&page=2
So my questions:
Is there any way to flash some sort of firmware unofficially to give lte support?
If I flashed a custom rom would that give me lte support? Or do I need to flash the official 3 Ireland lte firmware first?
If that will work, can anyone recommend a rom to install?
Finally has anyone managed to get themselves out of a similar situation yet?
Hope somebody can help,
Thanks for reading
Barry
Click to expand...
Click to collapse
If you reflash back to complete Stock your status will show Official, also you can try a custom ROM, ALL of them are capable of getting LTE by default. I have no issues with them.
radicalisto said:
If you reflash back to complete Stock your status will show Official, also you can try a custom ROM, ALL of them are capable of getting LTE by default. I have no issues with them.
Click to expand...
Click to collapse
Thanks for the quick reply radicalisto, to be honest I'm ready to move away from touchwiz so a custom ROM sounds like a good solution to me. Choosing one is the conundrum. Are any of them more stable/full featured than the rest? I would appreciate any advice about a ROM to choose.
Well to be honest, custom ROMs are trial and error, but the new Kitkat ROMs are awesome, I personally tried them all and have settled on one (won't say which cause it may sway you haha) - however these are TW based ROMs.
If you are on 4.3 still and fancy CM11 -- Two ROMs you should try are temasek's CM11 + Yank555's kernel (amazing pal) - Or ProBAM with Yank555's kernel (Just as good as temasek's) both are packed with great features, awesome battery life and generally just great. However you may or may not know, CM doesn't support SPen functions, you'd have to use GMDSPen or another alternative.
EDIT: Little side note, again not sure if you are aware.. if you flash Kitkat 4.4.2 your bootloader upgrades so you cannot use CM, as it runs on 4.3's bootloader, there is no downgrade option either currently.
Not that I'm so concerned about the CM bootloader using 4.3, but would I be safe in assuming that the CM team will have to eventually switch to the 4.4 bootloader?
radicalisto said:
Well to be honest, custom ROMs are trial and error, but the new Kitkat ROMs are awesome, I personally tried them all and have settled on one (won't say which cause it may sway you haha) - however these are TW based ROMs.
Click to expand...
Click to collapse
Well you're allowed to tell me as I was asking to be swayed...
I'm thinking I'm going to try x-note first as it seems to be the most popular and I'm guessing it's that way for a reason.
Yeah CM team are working on it now from what I have read, I'm using X-Note V.8 with CivZ KatEngine 2.0 kernel

Slow Internet (3G/LTE) after 4.4.2 Update

Hello Guys
Well, let me get straight to the point. After my old rom (Revolution HD3) was draining my battery pretty fast, i decided to update to 4.4.2. Well, i downloaded the latest 4.4.2 for switzerland from sammobile.com. I flashed it and it somehow was all laggy and i had fc's the whole time. After some time i was able to use the phone anyway, but it was laggy. And the problem was that my 3G connection was EXTREMELY slow. I got connection time outs the whole time and wasnt able to download anything. Well, i thought it was the rom i flashed trough odin, so i downgraded to 4.2.2, my original rom, and updated trough KIES. The rom wasnt laggy anymore, but the 3g/4g was slow. I tried different Modems and Kernels. Nothing Helped. I then decided im going back to a custom rom but the flash failed. Then i tried another rom and it failed again. So i thought it may was cause i was on 4.4.2 and tried to flash a custom rom that was 4.2.2. I then tried to reflash my stock rom trough odin, and it FAILED. And that's how i bricked my phone. I can still enter Download Mode, but can't enter the recovery anymore. What do i do? I'd like to solve both problems.
Thanks guys
Btw: I've got an I9505
I assume you didn't wipe anything before you flashed stuff? Thats like rule number 1 to do.
You can try flashing a recovery true Odin.
Hej Guys
Um.. Just to let you guys know, it is possible to downgrad to 4.2.2 from 4.4.2. I just did it this morning and had sucess. But the problem with the really slow internet connction still is here, when im on a 4.4.2. And, it is the same with custom roms running 4.4.2. I tried different kernels and modems, nothing helped so far. As soon as i was back to 4.2.2 it had the usual connection speed. I called my provider and also called samsung itself. Obviously, they both told me to bring the phone back for garantuee. But well, as i know it's a software problem and not hardware, i wont do that. So can you guys help me? What should i do next? Actually im back on 4.2.2. Thanks
Edit: Oh, and ofc, i did everything like wiping/factory resetting, wipping preoload etc. It's not my first time flashing.
It's not possible to downgrade from 4.4.2 to 4.2.2! End of..
Sent from my GT-I9505 using xda premium
Are you serious dude? Im running 4.2.2 right now. What is your point?`I didnt even ask about it. I asked about a solution to the problem that i get slow 3G/4G on my I9505 when running 4.4.2. If you want a proof Pic about it running 4.2.2, i can give you one. But i dont really get what your point is.
Hang on hang on hang on, it is common knowledge that you cannot downgrade from official samsung 4.4.2 to official samsung 4.2.2 because in odin you will get failure at aboot.bin because you cannot downgrade bootloader.
How ever what would be really good is instead of just trying to say it then jumping out saying what's your point, we'll my friend the point is, it would be advantageous to everyone in the entire samsung galaxy s4 i9505 community if you can tell everyone how you did it.
My perspective is your doing a bit of flaming.
Pictures really won't prove a whole lot as anyone can do some build.prop edits and show different rom name and version.
Sent from my GT-I9505 using Tapatalk
Well, if it sounded like flame to you, it wasnt. I didnt create this thread to flame others. But i wasnt kidding saying that i downgraded to 4.2.2. Here how i did it:
Was running 4.4.2 (I9505XXUFNB9)
Flashed TWRP recovery.
Flashed custom Rom 4.2.2, which FAILED!
Flashed Official 4.2.2 trough odin, which FAILED!
Flashed TWRP recovery again, since it was somehow damaged from the flash before
Flashed Wanamlite 4.4.2
Flashed Custom Rom 4.2.2
Flashed Official 4.2.2 with succes.
Im not sure what part of those flashes were essential, but i have no reason for liying to you. What would be the perks if i did?
But now again BTT, Did anyone else have that problem of slow interenet connection? Or is it just me? Maybe some ideas?
Regarding slow Internet maybe it's your carrier with issues.
Maybe the downgrade back to 4.2.2 has created issues in its self. Have you checked your baseband matches bootloader and build?
A problem we have is we can't see the version of the 4G modem (non-hols) so that might be also an issue.
When you flashed back did you do a factory reset?
In regards to downgrade do you still have the Knox bootloader?
Sent from my GT-I9505 using Tapatalk
Well, i called my operator and the girl on the phone said that some people already called with the same issue, but its not on their side. It's a problem with the update samsung released. After the downgrade i had my Knox Bootloader and everything worked like it always did.
Yesterday Sammobile released a new ''rom'' for my country. Downloaded it, flashed it and it works great now. I have a bit of a fast battery Drain, but the problem with the slow internet seems to be fixed.
Again: 4.2.2 worked perfectly after downgrade. It had no issue, No FC nothing at all. Maybe i was lucky? No idea, but im happy my 4.4.2 works now
Thanks anyway for your help guys
Edit: Yeah, my bootloader matched both baseband and build.
Joku1981 said:
Mod Edit
Click to expand...
Click to collapse
If you had done your homework, you would know that in almost all cases Samsung repairs it even with Knox set to 0x1. They even publicly stated it in the Netherlands that they will repair your phone even with custom roms.
And you don't know the law in Switserland. Nor do I. So you can't say that in Switserland his rights are voided by flashing.
If Samsung doesn't give you the warranty, then you still have your consumer rights in the European Union (not that Switerland is in it). No flashing, modding or other chances decleine you your rights if it's not related to a hardware failure. In the countries that you and I live in, it will never void your rights if the damage is not related to flashing or modding.
So well, i think that in switzerland they actually WONT repair it if you flash it, but i aint sure about that, since i never had to send it to repair. But anyway, it was only a software problem on their side. They released another version for switzerland and it seemed to have fixed the problem. I have a bit more of a battery drain, but i actually think im just too used to some other custom roms. Anyways, thanks for the help guys

What modem for note 4 n910c?

Hi,
Im Roy from the Netherland and bought my phone from hungaria.
The phone had android 4.2.2 installed and everything was good.
The signal was verry good also!
When i updated to 5.0.1 my signal went verry bad, i tryed 5 different modems and the one with the best signal i kept ( by far not as good as the 4.2.2 modem.
Now yesterday i installed 5.1.1 and my signal is even worse.
Does anyone know what to do?
Does someone know if i can use the 4.2.2 modem on 5.1.1 and where i can get it?
Thanks!!
Someone can help me out?
That aint much
@roytyo Not sure buddy but I think you need to post this in one of the custom rom forums like erobot Rom or DN5 Rom.
People will answer you there.

Help on some doubts and advice

Hi Guys!
Need some help on this thing, hope someone can clear some doubts and give me some advice too... The thins is this, I used to have a Samsung Captivate Galaxy S (Yes, hard to believe I squeeze that thing to the last drop LOL, I flashed SlimRom, wich was a pretty light ROM I think, and keep it as clean as possible always), Im from Mexico, and also Im that type of guy marketing doesnt make hard effect on me... anyway, recently a co-worker offered me this new one, at a very good price, almost brand new, so I got it.
As you can figured it out, It is a long time now since I made my last flashes, upgrades, etc... And now I want to do it again, but if possible I would like to do it the right way.
Here are my S4 settings:
Soft Version: LV720VPUFNG2
Model: SPH-L720
Android: 4.4.2
Baseband Version: L720VPUFNG2
Already Rooted and I've already installed TWRP Ver: 2.8.4.0
I got it already SIm Unlocked.
My Career Network is GSM.
The main reason I want to flash a ROM is to get rid of all the crap Samsung installs, I would like to install a light-weight (Lollipop if possible) but a with all the functions that I aleady have, like Air gesture, Screen Mirroring, Bluetooth, Wifi, etc...
So I would really appreciate if someone can advice me with one good, light-weight-clean ROM, Lollipop if possible... ( I remember back when I was flashing Captivate, SlimROMS where something like Im looking now)
Also, If a make backup before flashing and if I got problems while flashing, By reverting to my backup, Would I have it again working like it was? I mean modem, bootloader, etc.?
My main concern is to be able to back if I have a not-working flash, as this is my new and only cellphone.
Many Thanks in advance. BTW, Hope my english is understandable
No one? :/ Well, I'll keep it more simple lol
If I flash some ROM, I would have the same baseband/modem I already have right?
So if I flash for example, Exodus ROM, I'll end up with Android 5.1.1(I think thats the last one of that ROM) but keeping my baseband as it is now, NG2.
It Should work?
Please I really appreciate if someone can just clear this doubts before I proceed.
Technically speaking, Yes. You should be able to keep your baseband and modem since you're not flashing anything like that over odin, or if the ROM file itself isn't programmed to do such things.
techyerik said:
Technically speaking, Yes. You should be able to keep your baseband and modem since you're not flashing anything like that over odin, or if the ROM file itself isn't programmed to do such things.
Click to expand...
Click to collapse
Thanks for your answer man, and just for the last question, Do you know where I can find Stock ROMS, baseband and modems? (In case I need them)
I found this thread http://forum.xda-developers.com/showthread.php?t=2303917
But It looks like is not truly updated, for example I can't find my baseband version in it.
Btw, Do you know if my modem NG2? Its the last one or not? I've been searching for that info too, but can't find anything updated that I can trust.
Many thanks in advance.
FrankI897 said:
Thanks for your answer man, and just for the last question, Do you know where I can find Stock ROMS, baseband and modems? (In case I need them)
I found this thread http://forum.xda-developers.com/showthread.php?t=2303917
But It looks like is not truly updated, for example I can't find my baseband version in it.
Btw, Do you know if my modem NG2? Its the last one or not? I've been searching for that info too, but can't find anything updated that I can trust.
Many thanks in advance.
Click to expand...
Click to collapse
This is for stock firmware's; this means it's an all-in-one stock rom that has the baseband, kernel and modem etc. all inside a single rom file.
http://www.sammobile.com/firmwares/database/SPH-L720/SPR/
For latest info on your system check this
http://support.sprint.com/support/a...ServiceAdvisory_542_GKB51952-dvc7300002prd#!/
As for individual files like just single modems, kernels and basebands just search here. You'll find them, search and google are your friend. And no NG2 is no't the latest, OH1 is.
techyerik said:
This is for stock firmware's; this means it's an all-in-one stock rom that has the baseband, kernel and modem etc. all inside a single rom file.
http://www.sammobile.com/firmwares/database/SPH-L720/SPR/
For latest info on your system check this
http://support.sprint.com/support/a...ServiceAdvisory_542_GKB51952-dvc7300002prd#!/
As for individual files like just single modems, kernels and basebands just search here. You'll find them, search and google are your friend. And no NG2 is no't the latest, OH1 is.
Click to expand...
Click to collapse
Many thanks man, that's exactly what I was looking for, some backup information that could help me in case I need it, now I feel more secure about it.
Greetings from Mexico
PS. I'll reply later to tell how it went

Samsung S4 (I9505) Not connecting to a mobile network after flashing new ROM)

Okay this is a very long story. I have had this old S4 in my drawer and decided to update and refresh it. I found on SamMobile that lollipop was available for it, so I downloaded that. After flashing that to my S4 the phone could not detect a sim card. I then suddenly realized I had flashed the wrong ROM. I live in Australia and I am connected to a carrier called Telstra, but instead of flashing that one I flashed a ROM meant for unlocked phones. So now I am in trouble and I need your guys help! Please help me out on this and if you need any questions to help me just ask!
JoeyFlux said:
Okay this is a very long story. I have had this old S4 in my drawer and decided to update and refresh it. I found on SamMobile that lollipop was available for it, so I downloaded that. After flashing that to my S4 the phone could not detect a sim card. I then suddenly realized I had flashed the wrong ROM. I live in Australia and I am connected to a carrier called Telstra, but instead of flashing that one I flashed a ROM meant for unlocked phones. So now I am in trouble and I need your guys help! Please help me out on this and if you need any questions to help me just ask!
Click to expand...
Click to collapse
No problem at all, you can download another rom, that related to your region and flash it in same way, or if you want to get the most from your device you can try a custom rom and I recommend the following for you if you want to get the best performance
- Echoerom
- Albe95 rom
-Omega Rom
Mhussein said:
No problem at all, you can download another rom, that related to your region and flash it in same way, or if you want to get the most from your device you can try a custom rom and I recommend the following for you if you want to get the best performance
- Echoerom
- Albe95 rom
-Omega Rom
Click to expand...
Click to collapse
No I have lost connection to my baseband and IMEI. Because I did not backup my EFS. Please help!
Did you try flashing a stock ROM for your carrier?
Try flashing the rom meant for your phone. Things might be fine.
If no..then go to the store they'll fix it for you in no time

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