Modem not changing after flashing - Galaxy S 4 Q&A, Help & Troubleshooting

Hi,
I was using RR 5.7.1 (based on CM13) for a while and noticed since I flashed it I had bad reception.
Now I realized that my GPS works horribly too. I've tried almost EVERYTHING, ranging from FasterGPS to changing the gps.conf and flashing a completely different ROM (Kushan and Omega, both based on TW)
I think the only thing I haven't tried is flashing another baseband firmware.
Well, I actually did, but the phone just wouldn't change it.
Odin claims it's a PASS but the firmware doesn't change in "About Phone" and reception stays the same.
I have a gt-i9505, I live in Israel and well, I didn't find a modem for my device and for Israel so I tried Global ones.
As stated, these don't work.
My current Baseband stays I9505XXYHOA7
No matter what I do, I can't get a GPS fix.
I typed *#1234# into the dialer to check my version,
it says the following:
AP: I9505XXUHOL4 (which is the modem I tried to flash)
CP: I9505XXUHOA7 (which is the modem I want to replace)
Any help would be really appreciated,
Thanks,
B1T3X

B1T3X said:
Hi,
I was using RR 5.7.1 (based on CM13) for a while and noticed since I flashed it I had bad reception.
Now I realized that my GPS works horribly too. I've tried almost EVERYTHING, ranging from FasterGPS to changing the gps.conf and flashing a completely different ROM (Kushan and Omega, both based on TW)
I think the only thing I haven't tried is flashing another baseband firmware.
Well, I actually did, but the phone just wouldn't change it.
Odin claims it's a PASS but the firmware doesn't change in "About Phone" and reception stays the same.
I have a gt-i9505, I live in Israel and well, I didn't find a modem for my device and for Israel so I tried Global ones.
As stated, these don't work.
My current Baseband stays I9505XXYHOA7
No matter what I do, I can't get a GPS fix.
I typed *#1234# into the dialer to check my version,
it says the following:
AP: I9505XXUHOL4 (which is the modem I tried to flash)
CP: I9505XXUHOA7 (which is the modem I want to replace)
Any help would be really appreciated,
Thanks,
B1T3X
Click to expand...
Click to collapse
Please tell me what you want to do?
Do you want to fix gps & bad receptioning on RR rom?
#When we flashing a custom rom to our phones it will not change current baseband/modem(if you are in stock rom,then stock baseband/modem)
#For good repceptioning you want matching RIL with baseband/modem
#stock rom has a matched RIL with baseband, but when we flashing a custom rom then it remains stock baseband(because custom rom not changing baseband but ril files)
#then we have mismatching with ril and baseband,it will cause to bad receptioning
(RIL= Radio Interface Layer< driver for the modem)

Densil said:
Please tell me what you want to do?
Do you want to fix gps & bad receptioning on RR rom?
#When we flashing a custom rom to our phones it will not change current baseband/modem(if you are in stock rom,then stock baseband/modem)
#For good repceptioning you want matching RIL with baseband/modem
#stock rom has a matched RIL with baseband, but when we flashing a custom rom then it remains stock baseband(because custom rom not changing baseband but ril files)
#then we have mismatching with ril and baseband,it will cause to bad receptioning
(RIL= Radio Interface Layer< driver for the modem)
Click to expand...
Click to collapse
Thank you so much for responding!
I finally fixed the GPS issue, turned out to be a hardware issue more than a software one.
Now I need to fix the bad cell reception, mind helping me out? How do I do that?

Related

32g sm-n9005 baseband unknown/imei null/sound and camera not working

After flashing the sm-n9005 to N9005DXUENE4 the phone is not function at all. Though I can still boot into the system it becomes very laggy, baseband unknown, imei null sound and camera not working. Did try to flash Sweetrom V7 still the same. Anyway if there's a way I can bring it back to life?
Try to flash back stock rom..or restore thru kies 3 will be much better..
Sent from my GT-S7500 using XDA Free mobile app
Did try the stock rom already, still the same.
at217 said:
Did try the stock rom already, still the same.
Click to expand...
Click to collapse
IMEI NULL/NULL is modem or hardware problem
My guess is that it is due to a modem/firmware mismatch. Start flashing a modem for same fw version.
did that already, one more thing the phone keyboard and the swipe to unlock is not responsive at all.repair.
did you find any solution and fixed your phone ?
ohayyam said:
did you find any solution and fixed your phone ?
Click to expand...
Click to collapse
that's a modem problem
flash ir with odin
rayman95 said:
that's a modem problem
flash ir with odin
Click to expand...
Click to collapse
I tried different stock rom and different modem files for LTE but still same... what is correct combination to fix this problem.
my CSC EUR, it was XSI changed due to custom rom ???
I have 6 LTE modem from indie omega rom and fount on xda 2 more MJI6 and MI6 ... I tried all with FNF2 , latest and older xsi stock roms and some combination of rom and modem. but could not fixed yet.
i tried your rom too )
i tried mirek190 methods but could not find a mmsblk0P11 file or edit mine on phone to write imei ...
still nothing ...
ohayyam said:
I tried different stock rom and different modem files for LTE but still same... what is correct combination to fix this problem.
my CSC EUR, it was XSI changed due to custom rom ???
I have 6 LTE modem from indie omega rom and fount on xda 2 more MJI6 and MI6 ... I tried all with FNF2 , latest and older xsi stock roms and some combination of rom and modem. but could not fixed yet.
i tried your rom too )
i tried mirek190 methods but could not find a mmsblk0P11 file or edit mine on phone to write imei ...
still nothing ...
Click to expand...
Click to collapse
When arrive the problem and which rom and modem do you have before?
You need to go back on this... you Don t have efs backup?????
Otherwise try to put NF2 modem with NF4 rom. Bootloader is not important.
But check if modem well installed because odin says PASS but still on old modem
Try to flash latest NG2 firmware after whipe cache and factory reset. It did the job for me.
rayman95 said:
When arrive the problem and which rom and modem do you have before?
You need to go back on this... you Don t have efs backup?????
Otherwise try to put NF2 modem with NF4 rom. Bootloader is not important.
But check if modem well installed because odin says PASS but still on old modem
Click to expand...
Click to collapse
how can i check the modem with baseband unknown imei null phone ? Even phone info samsung application shows nothing !!!
try khizar method to flash NF2 or NG2 modem
Thank you
rayman95 said:
try khizar method to flash NF2 or NG2 modem
Click to expand...
Click to collapse
I have been already try KHIZAR'S METHOD*to install different LTE Modems on my phone with different stock roms. No matter finally i gave my phone to local repair shop. Samsung Official repair center's do not care about my phone due to it is N9005 and it is not for my country selling phone.
And another question my first N9005 slept in water during almost whole night. When i wake up in the morning i found my phone in water since many hours. I give it repair shop to check also but seems to main board needs to be replaced. Connection sockets damaged badly like melted half of them. is it possible to only change the connection sockets instead of whole mainboard ? Any idea ? and Where can i get only the connection sockets ? from samy ? ))
And i am starting the googled to find N9005 mainboard sockets
You re the terminator of N9005.? ....... no idea about motherboard or connector sorry....
I am having the same issue,
I'm new to the site been cool so far learned a lot and done a lot with my Note 3 since being here.
I recently rooted and install a custom rom (N900_NF3_INU_Dr.Ketan Custom ROM K11) that works great, I tried flashing back to stock but encountered a major problem. after flashing to stock my IMEI is unknown and also my base-band from reading it seem as if my EFS got corrupted tried a ton of different thing and still I cant get this to work on stock. Only way my IMEI and base-band comes back is whenever I reinstall the custom rom (N900_NF3_INU_Dr.Ketan Custom ROM K11) and restore the EFS that was backed up during the first installation of this rom
Thanks in advance all help is greatly appreciated. :good::good:
juniorbb2201 said:
I am having the same issue,
I'm new to the site been cool so far learned a lot and done a lot with my Note 3 since being here.
I recently rooted and install a custom rom (N900_NF3_INU_Dr.Ketan Custom ROM K11) that works great, I tried flashing back to stock but encountered a major problem. after flashing to stock my IMEI is unknown and also my base-band from reading it seem as if my EFS got corrupted tried a ton of different thing and still I cant get this to work on stock. Only way my IMEI and base-band comes back is whenever I reinstall the custom rom (N900_NF3_INU_Dr.Ketan Custom ROM K11) and restore the EFS that was backed up during the first installation of this rom
Thanks in advance all help is greatly appreciated. :good::good:
Click to expand...
Click to collapse
So you are lucky , you can use your phone with custom ROM. I tried many custom and stock and different modems ..Still imei null and unkown basband (
Hopefully Samsung will fix this .ucking useless problem with 4.4.3 ROM...
sign: N9005 Terminator )
ohayyam said:
I tried different stock rom and different modem files for LTE but still same... what is correct combination to fix this problem.
my CSC EUR, it was XSI changed due to custom rom ???
I have 6 LTE modem from indie omega rom and fount on xda 2 more MJI6 and MI6 ... I tried all with FNF2 , latest and older xsi stock roms and some combination of rom and modem. but could not fixed yet.
i tried your rom too )
i tried mirek190 methods but could not find a mmsblk0P11 file or edit mine on phone to write imei ...
still nothing ...
Click to expand...
Click to collapse
Here mmsblk0P11
worked for me
goodoane said:
Try to flash latest NG2 firmware after whipe cache and factory reset. It did the job for me.
Click to expand...
Click to collapse
You are a gent. My phone is alive and well again thanks to your advice. Much appreciated
UNCNOWN IMEI,
I ALSO HAVE BEFORE
AND I INSTAL
Phronesis N7 v7.0.zip
AND IMEI IS OK,
BUT I THINK MY NOTE3
PROBLEM HARDWARE,
IT WORK ONLY WHEN
NETWORK GSM,
AND IT NO WORK IF
LTE/3G/2G AUTO,
IT NOTIFY "NO REGISTERED
InUNCNOWN IMEI,
I ALSO HAVE BEFORE
AND I INSTAL
Phronesis N7 v7.0.zip
AND IMEI IS OK,
BUT I THINK MY NOTE3
PROBLEM HARDWARE,
IT WORK ONLY WHEN
NETWORK GSM,
AND IT NO WORK IF
LTE/3G/2G AUTO,
IT NOTIFY "NO REGISTERED
IN NETWORK"
*
I THINK MAYBE NEED UPDATE MODEM WITH Odin, I UPDATE
MODEM NORDIC,
IT NOT HELP,
I UPDATE ANOTHER, AGAIN AND AGAIN, EVEN
I UPDATE OFFICIAL FIRMWARE,
ONE FILE AND FOUR WITH PIT
AND NOTHING BETTER THAN
Phronesis N7 v7.0.
I TRY INSTAL
ANOTHER FEW VERSIONS OF Phronesis
BUT IT BRICKS
AND ONLY v7.0
NO BRICKS.
Difficult understand your post .
Suggest flashing latest stock rom for your model and test .Check IMEI correct . Back up EFS .

Baseband Unknown and no IMEI number

Hi All
I have the following error on my Samsung Galaxy Note 3 Exynos (N900).
My phone was rooted and Ive been running a custom ROM. Now I want to go back to stock but when I load any stock rom I get the Baseband Unknown and no IMEI number problem.
I have tried
* 4 different stock roms - same issue
* flashed separate modem driver - same issue
* restored EFS folder/partition - same issue
The only way I can get it to work again is by loading the custom ROM (http://forum.xda-developers.com/showthread.php?t=2503206).
Seeing as the custom ROM works and everyone says the problem is with the EFS folder. I backed up the EFS folder with Custom Rom loaded and restored the EFS folder with stock ROM loaded. Still the same issue - Baseband Unknown and no IMEI number.
I know there are a lot of posts regarding this issue and all seem to point to the EFS folder. Mine however doesnt seem to be a EFS folder issue.
Any other ideas?
Just FYI I also ran the KNOX warranty reset (not sure if this is relevant)
Thank you
Morne
Only thing that fixed my phone with that same issue was SPT box. Ask your local repair shop
I had unknown baseband and null imei yesterday on my N9005 after flashing stock rom using Odin. After 5 hours trying to find a solution I almost lost hope but then I tried flashing a other modem and it worked Phone works now and I have been using it all day.
The modem I flashed is CP_N9005XXUFNG2
I flashed it on N9005XXUEND5 (Nordic)
So my tip for you is to try find a different modem for your phone and flash it using Odin
Hope it helps
fredrik8 said:
I had unknown baseband and null imei yesterday on my N9005 after flashing stock rom using Odin. After 5 hours trying to find a solution I almost lost hope but then I tried flashing a other modem and it worked Phone works now and I have been using it all day.
The modem I flashed is CP_N9005XXUFNG2
I flashed it on N9005XXUEND5 (Nordic)
So my tip for you is to try find a different modem for your phone and flash it using Odin
Hope it helps
Click to expand...
Click to collapse
I'm downloading some other modem drivers now. Thanks
Will let you know if this helped
I tried all of the following modems:
N900_DDUBMI3_MODEM
N900_DDUBMI4_MODEM
N900_DXUBMI1_MODEM
N900_UBUBMI2_MODEM
N900_XXUBMI2_MODEM
Still the same issue
morne4444 said:
I tried all of the following modems:
N900_DDUBMI3_MODEM
N900_DDUBMI4_MODEM
N900_DXUBMI1_MODEM
N900_UBUBMI2_MODEM
N900_XXUBMI2_MODEM
Still the same issue
Click to expand...
Click to collapse
The working custom rom has XXUENE1 as the modem, Im trying to find it and test with stock rom
morne4444 said:
The working custom rom has XXUENE1 as the modem, Im trying to find it and test with stock rom
Click to expand...
Click to collapse
I cant find that modem on its own
N9005 LTE 32GB sama IMEI null and unkown baseband
I did what you did with my N9005. i am trying different modems also still same (
a question to fix it but not sure..
did you thicked " phone bootloader update " during stock rom installation ?
I am not an expert, I just read somewhere on XDA to install 4.4.2 stock rom with ticked .i plan to try it before try just wanna ask you
ohayyam said:
I did what you did with my N9005. i am trying different modems also still same (
a question to fix it but not sure..
did you thicked " phone bootloader update " during stock rom installation ?
I am not an expert, I just read somewhere on XDA to install 4.4.2 stock rom with ticked .i plan to try it before try just wanna ask you
Click to expand...
Click to collapse
I havent tried it
morne4444 said:
I havent tried it
Click to expand...
Click to collapse
i am going to try now... i will inform you soon...
I could not select to thick phone bootloader update, during stock rom installation.
We have to find necessary files sperately to correct what we did wrong, and during normal stock installation damaged side does not rewritten that results still imei null and basband unkown (
1-) i try stock rom with pit files 718 and 805 eur open 32GB for N9005 but not fixed..
2-) Tried different modems on different stock or custom roms ...
Now time to find BOOTLOADER FILES TO INSTALL WITH ODIN )
Not sure this would help but have you tried a Factory Reset with clearing all cache's? If it works then try reflashing your stock saved ROM over it to regain all your apps.
Here is what happend.
The rom I was using before I got unknown baseband and null imei was N9005XXUFNF4. Note, this is the latest UK rom. I then flashed a Nordic rom that was available at that time which was N9005XXUEND5. Note, this rom is older and uses an older modem than N9005XXUFNF4. This caused unknown baseband and null imei for me.
The reason why I flashed in the first place was because I'm from Sweden and the new update that N9005XXUFNF4 had was available OTA on N9005XXUEND5 rom.
The latest Nordic rom that I downloaded from sammobile is N9005XXUFNG2. Note, this rom uses N9005XXUFNG2 modem, the same modem I flashed on N9005XXUEND5.
Problem now is that I can't receive OTA because it now thinks that I got the latest update already because I got the latest modem installed.
I flashed latest Nordic rom N9005XXUFNG2 today and everything is working fine now.
fredrik8 said:
Here is what happend.
The rom I was using before I got unknown baseband and null imei was N9005XXUFNF4. Note, this is the latest UK rom. I then flashed a Nordic rom that was available at that time which was N9005XXUEND5. Note, this rom is older and uses an older modem than N9005XXUFNF4. This caused unknown baseband and null imei for me.
The reason why I flashed in the first place was because I'm from Sweden and the new update that N9005XXUFNF4 had was available OTA on N9005XXUEND5 rom.
The latest Nordic rom that I downloaded from sammobile is N9005XXUFNG2. Note, this rom uses N9005XXUFNG2 modem, the same modem I flashed on N9005XXUEND5.
Problem now is that I can't receive OTA because it now thinks that I got the latest update already because I got the latest modem installed.
I flashed latest Nordic rom N9005XXUFNG2 today and everything is working fine now.
Click to expand...
Click to collapse
Thanks man.
I went from the stock rom that the phone came out with in South Africa to a Russian Rom (latest version) to a custom ROM. I came right by installing N900XXUENG1_N900ODDENF1_INS (India), it is the latest version available and it worked !!!!
Problem Resolved
morne4444 said:
Thanks man.
I went from the stock rom that the phone came out with in South Africa to a Russian Rom (latest version) to a custom ROM. I came right by installing N900XXUENG1_N900ODDENF1_INS (India), it is the latest version available and it worked !!!!
Problem Resolved
Click to expand...
Click to collapse
Nice
fredrik8 said:
Nice
Click to expand...
Click to collapse
Thanks for the help and suggestions !
morne4444 said:
Thanks for the help and suggestions !
Click to expand...
Click to collapse
You're welcome
My N9005 32GB story little bit unkown.
It is Stupid Story but i did not check original rom was 4.3 or 4.4.2 ??? Because i got 2 new phones from my friends to make root and install custom ROM. One of them was 4.4.2 rom that i was sucessfully root and install omega20 ROM. I suppose both phone was same and did not checked second one then when i was installing 4.4.2 CWM KK files with ODIN phone was freeze and fail !!!
I tried many stock roms and custom roms some recovery fix scripts etc. etc. Finally i start to use Mirek's method till adb commands... Last thing that i could not success to check Mirek's method is good for my phone... Last step was writing serial number IMEI no to dev block but i could not do it...Because of my adb knowledge nothing. I did many things blindly ) let me do try and see the results...
Let's forget about past. Please advice me what should i do now to try to fix the phone.
Final status is ROM installed stock SEE ROM and my CSC now EUR but still imei null and unknown baseband... AP:N9005XXUFNG2 , CSC:N9005OXXFNG2
I am sure that the phone info shows original CSC EUR, this phone was XSI. During the custom rom installation CSC was changed. ( sweet rom can change CSC code, during aroma installation asking to select CSC ).
Any advice ?
Thanks and Regards.
ohayyam said:
My N9005 32GB story little bit unkown.
It is Stupid Story but i did not check original rom was 4.3 or 4.4.2 ??? Because i got 2 new phones from my friends to make root and install custom ROM. One of them was 4.4.2 rom that i was sucessfully root and install omega20 ROM. I suppose both phone was same and did not checked second one then when i was installing 4.4.2 CWM KK files with ODIN phone was freeze and fail !!!
I tried many stock roms and custom roms some recovery fix scripts etc. etc. Finally i start to use Mirek's method till adb commands... Last thing that i could not success to check Mirek's method is good for my phone... Last step was writing serial number IMEI no to dev block but i could not do it...Because of my adb knowledge nothing. I did many things blindly ) let me do try and see the results...
Let's forget about past. Please advice me what should i do now to try to fix the phone.
Final status is ROM installed stock SEE ROM and my CSC now EUR but still imei null and unknown baseband... AP:N9005XXUFNG2 , CSC:N9005OXXFNG2
I am sure that the phone info shows original CSC EUR, this phone was XSI. During the custom rom installation CSC was changed. ( sweet rom can change CSC code, during aroma installation asking to select CSC ).
Any advice ?
Thanks and Regards.
Click to expand...
Click to collapse
Have you tried flashing a different modem?
Here is my previous post.
fredrik8 said:
I had unknown baseband and null imei yesterday on my N9005 after flashing stock rom using Odin. After 5 hours trying to find a solution I almost lost hope but then I tried flashing a other modem and it worked Phone works now and I have been using it all day.
The modem I flashed is CP_N9005XXUFNG2
I flashed it on N9005XXUEND5 (Nordic)
So my tip for you is to try find a different modem for your phone and flash it using Odin
Hope it helps
Click to expand...
Click to collapse
fredrik8 said:
Have you tried flashing a different modem?
Here is my previous post.
Click to expand...
Click to collapse
I have 6 different N9005 LTE modems 5 of them failed. now i am trying last one.
installing with odin two times with unthicked autobootloader as mentioned read one of the xda forum tread.
A question how can i know modem installed succsesfully because of unkown baseband phone info shows nothing !!!
is there another way to understand installed modem ?
i plan to install last E3 modem which was latest. i started from oldest to newest. on XXuFNG2 rom and csc EUR. if last one fail then i plan to follow mireks methods with adb commands. i was reading adb commands on android.com and viewed many videos on youtube about adb..
i am still working reading trying but still imei null and unknown baseband.
Same boat
I'm in the same boat as you guys!
No network, baseband, imei, nothing
I was on 4.3 MK2 XSI and flashed KK netherlands PHN stock ND3.
On first flashing, I got error "invalid ext4" on odin 3.09
Then I flashed the same ND3 with pit file and it passed.
Then this happened. no network, imei.
BTW I have EFS backup in .IMG backup which has that mc11.something file. But replacing that is of no use.
What do you guys suggest ? Can I flash NG2 stock on this XSI region stock ?
Will I require to use PIT file ?
Thanks

No longer getting a 4G connection

So I tried a few roms this morning (Resurrection Remix, Goldfinger, Imperium) and since then, i've noticed I'm no longer getting a 4G connection. It's either 3G or H+.
I have no idea why, can anyone help me out?
Before anyone asks, I've tried *#1234# and I get the message "Connection problem or invalid MMI code."
can anyone help me out?
I've now got CM12 installed, after a complete wipe of everything, and still no 4g -_-
You have to be on a stock ROM to get the AP, CP, and CSC of your S4, as the code only works through the stock dialer. Speaking of which, install a stock ROM and tell us if the problem continues. If it does, BEFORE flashing back to your custom ROM, please post the following information.
1. Model Number
2. Android Version, found by going to Settings > More > About device.
3. Firmware Version (AP, CP, CSC), found by dialing *#1234# in the dialer or by installing Phone Info from the Play Store and running it.
4. Service Provider
5. Country
6. Is the phone rooted? (Yes/No)
7. Is a custom ROM installed? (Yes/No, and the name of the ROM)
1. Model Number - GT-I9505
2. Android Version - 4.4.2
3. Firmware Version - AP: I9505XXUFNB8 CP: I9505XXUFNB8 CSC: I9505BTUFNB3
4. Service Provider - 3 UK
5. Country - United Kingdom
6. Is the phone rooted? - At the moment, since I've just installed stock 4.4.2 - No.
7. Is a custom ROM installed? - No. Stock.
Appreciate the help!
You didn't mention whether you were able to get LTE on the stock ROM. But, check to see if your network is set to LTE/WCDMA/GSM in settings.
No im still only getting 3G/H+ and yes, its set to LTE by default.
I always get 4G when sitting at my computer, but ever since I flashed a couple different roms last night, I've not been able to get a 4G signal. I havn't a clue what's happened.
Flash the stock modem for your phone through Odin. Do it twice if need be. Sometimes the modem firmware fails to correctly register leading to odd problems like this. Check to be sure everything works, then flash the custom ROM of your choice, or stay stock but debloat your ROM.
AndehX said:
1. Model Number - GT-I9505
2. Android Version - 4.4.2
3. Firmware Version - AP: I9505XXUFNB8 CP: I9505XXUFNB8 CSC: I9505BTUFNB3
4. Service Provider - 3 UK
5. Country - United Kingdom
6. Is the phone rooted? - At the moment, since I've just installed stock 4.4.2 - No.
7. Is a custom ROM installed? - No. Stock.
Appreciate the help!
Click to expand...
Click to collapse
3 UK have own firmwares. This is the latest for your device: HERE. Download, unzip and flash it via ODIN and done :highfive:
Joku1981 said:
3 UK have own firmwares. This is the latest for your device: HERE. Download, unzip and flash it via ODIN and done :highfive:
Click to expand...
Click to collapse
The phone isnt from 3. Im just using a 3 sim card in it. I guess I should have said it was unlocked.
Strephon Alkhalikoi said:
Flash the stock modem for your phone through Odin. Do it twice if need be. Sometimes the modem firmware fails to correctly register leading to odd problems like this. Check to be sure everything works, then flash the custom ROM of your choice, or stay stock but debloat your ROM.
Click to expand...
Click to collapse
How do I know what my stock modem is? Thats what confuses me.
If you're unlocked, you can use any stock modem you want from the modem thread in General. Grab the one at the bottom of the list as it's the latest.
Strephon Alkhalikoi said:
If you're unlocked, you can use any stock modem you want from the modem thread in General. Grab the one at the bottom of the list as it's the latest.
Click to expand...
Click to collapse
ok I flashed the XXUGNG2 modem. If im not mistaken XX designates United Kingdom, and NG2 seems to be the latest of those. So thats the one I flashed. So far there doesn't seem to be any difference though. Checked it via *#1234# and CP reads I9500XXUGNG2 so It looks like it flashed properly.
Ok crisis averted. It seems 3 must be doing some kind of maintenance in my area because I just tried an EE sim card in my phone and it recieves a 4G signal just fine. Nice of 3 to do maintenance at exactly the same time I decided to try a couple of new roms.... Just my luck.
Anyway, there doesn't seem to be anything wrong my phone after all, but thanks for your time trying to help me.

i9500 :baseband Unknown after upgrading modem to XXUGNL1

Hi Guys.
I'm using Cyanogenmod 12 29012015 Build from Alberto96.
yesterday I went on and tried updating the modem to find a modem that will be more battery friendly.
my original modem was JKFND1. after i flashed XXUGNL1 I'm experiencing very weird issues like
NO DATA at specific regions or SPEED LIMIT of 25 KBPS.
when I tried to revert back to JKFND1 im getting no Reception at all, and on about device i get baseband unknown.
I also tried XXUGNF6 with the same results.
the only baseband that works is XXUGNL1. is it possible that XXUGNL1 baseband change something on my EFS ?
I tried restore to different rom backups I have with touchwiz UI.
and the results is the same. only XXUGNL1 works.
Any Advice guys ?
Flash original firmware with Odin maybe? I think it comes with stock baseband. Then re-root your phone and do whatever you want to do

A total newbie flasher needs help

Hi.. I'm in way over my head trying to install a more debloated Rom than the original stock. Unfortunately I didn't succeed very well.
I tried two different ROMS and both of them turned the Sim off and on every second or so. Lots of *pling* noises followed by a message that the Sim card was or wasn't present. It changed so much back and forth that I didn't even get a chance to enter the pin. I belive it is because of some combabillity issues between the rom and baseband/radio version
This lead me to the question: How do I know what rom and baseband would be the most suited for me? I'm living in Denmark (nordic country), but I simply can't figure what rom that is compatible with what baseband.
Boot into Odin mode and verify the model number. Then go to Sammobile.com, download a rom for your country,and install it with Odin.
Did you buy the phone in the country where it is being used?
came99 said:
Hi.. I'm in way over my head trying to install a more debloated Rom than the original stock. Unfortunately I didn't succeed very well.
I tried two different ROMS and both of them turned the Sim off and on every second or so. Lots of *pling* noises followed by a message that the Sim card was or wasn't present. It changed so much back and forth that I didn't even get a chance to enter the pin. I belive it is because of some combabillity issues between the rom and baseband/radio version
This lead me to the question: How do I know what rom and baseband would be the most suited for me? I'm living in Denmark (nordic country), but I simply can't figure what rom that is compatible with what baseband.
Click to expand...
Click to collapse
I noticed you'd posted a duplicate thread, I'm guessing it was by accident but I've removed it for you
Regards
Sawdoctor
Sorry if what I'm asking is obvious, but when I install a custom rom, I also need to make sure I install a compatible radio for my area, right?
Sammobile is only stock ROMS, right? And I'm trying to debloat her phone. So when installing a custom rom from this forum and either the reception is bad, it doesn't register Sim card properly or the like.. It might be because I need another baseband than the one that came with the rom right? And what do I need to look for in that regard?
Sorry, but I find it pretty complicated.
I recommend flashing a completely stock ROM, set it up, and make sure everything is working properly. If it doesn't work properly on a stock ROM, it is unlikely it will work properly on a custom ROM.
I find it best to run the latest bootloader and modem regardless of which ROM will be used with the phone.
Problems can sometimes occur when flashing current ROMs over old bootloaders and modems.
audit13 said:
I recommend flashing a completely stock ROM, set it up, and make sure everything is working properly. If it doesn't work properly on a stock ROM, it is unlikely it will work properly on a custom ROM.
I find it best to run the latest bootloader and modem regardless of which ROM will be used with the phone.
Problems can sometimes occur when flashing current ROMs over old bootloaders and modems.
Click to expand...
Click to collapse
Thank you for the already helpful reply.
The thing you say about always flashing newest modem regardless of rom, is very helpful. I didnt even know you could do that. But my problem persist:
I already flashed back to stock, and it runs fine. SO far so good. The problem is that out of 16 GB, the bloatware is justing taking up to much space. But the last two rom I tried both had problems recognising the SIM card (toggled present/not present all the time).
Thats not the case on stock.. So how do I find the proper modem for my phone to use with a custom rom?
I keep seeing a link to sammobile, but all I can find is the bloated stock rom (or I dont know what to look for). Can I grab just the modem somewhere?
When installing a custom rom, it changes the current modem right? AFAIK I have to flash the proper modem afterwards, right?
And therein lies my problem: I dont know how to find the most suited one for my country (which is denmark). And the one that comes with the roms seems to be the wrong ones.
PS: A follow up question: Kernel and baseband/radio/modem is not the same, right? The kernel is not region specific, as the baseband/radio/modem, right?
came99 said:
Thank you for the already helpful reply.
The thing you say about always flashing newest modem regardless of rom, is very helpful. I didnt even know you could do that. But my problem persist:
I already flashed back to stock, and it runs fine. SO far so good. The problem is that out of 16 GB, the bloatware is justing taking up to much space. But the last two rom I tried both had problems recognising the SIM card (toggled present/not present all the time).
Thats not the case on stock.. So how do I find the proper modem for my phone to use with a custom rom?
I keep seeing a link to sammobile, but all I can find is the bloated stock rom (or I dont know what to look for). Can I grab just the modem somewhere?
When installing a custom rom, it changes the current modem right? AFAIK I have to flash the proper modem afterwards, right?
And therein lies my problem: I dont know how to find the most suited one for my country (which is denmark). And the one that comes with the roms seems to be the wrong ones.
PS: A follow up question: Kernel and baseband/radio/modem is not the same, right? The kernel is not region specific, as the baseband/radio/modem, right?
Click to expand...
Click to collapse
Custom ROMs can't change your modem, they can't write to those partitions.
In other words, your modem will be the same no matter what. The only way to change it is to flash the appropriate modem files or an actual stock ROM.
SO with the stock rom working now, the modem/rom combination would not be the culprit if something doesnt work afterwards?
What could have been the issue with the sim card connecting and disconnecting every second on the other rom I tried? (Iperium/Imperial something)
came99 said:
SO with the stock rom working now, the modem/rom combination would not be the culprit if something doesnt work afterwards?
What could have been the issue with the sim card connecting and disconnecting every second on the other rom I tried? (Iperium/Imperial something)
Click to expand...
Click to collapse
What I said is that a custom ROM can't change your modem. But that doesn't mean it can't be affected by your modem.
You may want to read Imperium ROM's install instructions very carefully, cuz I'm pretty sure you missed something important.
Doh.. You might be right.. Ill try flashing the tar files in Odin.
But I just recently got my phone to behave when connecting on Odin.. It also connected back and forth all the time. Putting a USB hub in the middle solved it though (and made it possible to revert to stock). Any idea wht that was about? I reckon either some driver or USB power problem? But Im really fumbling understanding it all, and when it acts up at the same time, even the most simple problems can be hard to see through (because there is always the uncertainty that I misunderstood something basic)..
Just having this conversation helped me understand a lot better how the ROMs and modem is connected (or more precise: How they are not).
And I actually may have had the right baseband all along (Nordic Countries). I will know when I tried flashing the rom again.
Thank you very much
It doesn't matter where you are from, the phone should work with any baseband in any country.
The thing is that some ROMs (like Imperium here) may require a different modem to function properly. In this case, it may require the PG1 modem (listed in the Imperium thread) to solve your problems.
Before flashing a stock ROM, confirm the model # in download mode.
If you want a debloated stock ROM, you could flash a stock ROM, flash TWRP recopvery, flash supersu for root, and use Titanium Backup to freeze or uninstall apps.
So right now I tried flashing the Resurrection Remix ROM, but it wont make any calls (a voice just says that the number cant be reached, even though I know the numbers exist). What could be the case there?
The modem and bootloader may be too old.
can it also be to new?
I have consulted the below site several times, but the link is dead to the page where I can look up what modem to use.
Can someone please point me in the right direction of which to use?
This site: http://forum.xda-developers.com/showthread.php?t=2192025
What modem should I choose for my phone? Living in Denamrk and trying with the ressurection remix rom? I tried 3 different of the modems starting with XX but all have the same problem: I cant make any calls. It just says that "there isnt any members on the selected number".
Making calls works fine on stock rom
came99 said:
This site: http://forum.xda-developers.com/showthread.php?t=2192025
What modem should I choose for my phone? Living in Denamrk and trying with the ressurection remix rom? I tried 3 different of the modems starting with XX but all have the same problem: I cant make any calls. It just says that "there isnt any members on the selected number".
Making calls works fine on stock rom
Click to expand...
Click to collapse
The ones linked in the Imperium ROM thread are the newest.
And no, it can't be too new.
It's probably something related to your phone model not being fully supported by the ROM.
JDCTeam ROMs should work, because they support a wide range of S4 models.
I got stock rom to work (again again)
And now I managed to flash the JDC Team you recommended and still having the baseband from the stock rom (Which were able to make calls)
But whatyaknow.. I STILL cant make outgoing calls on the custom roms! What in the world can be the problem? I spent the whole day on this.
.. I should be able to make outgoing calls without flashing Gapps, right?
Yes, you should be able to make calls without gapps.
You flashed the latest stock rom and confirmed everything works?
You confirmed the model number in download mode?

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