Database Users

ROM and radio/modem?

Are the ROMs (stock ROM from sammobile or here like Tweaked/AOSP/Jedi etc...) include radio/modem?
Or is the radio/modem is a separate flash?
Sorry for the dumb question.
Thank you very much.

First time unlocked bootloader user here. In for answers.

Just found a note:
You can usually flash the radio separately because ROMs dont typically include them (or if they do, its an option in Aroma). Radios are therefore not usually affected by Rom flash.
Kernels on the other hand, are typically included with the ROM so if you want to use a different one, you need to flash it after the rom. Usually your fine flashing them together without rebooting in between. HOwever, sometimes it can be quirky so I usually boot into the rom and then boot back into recovery and flash a kernel.
The android setup (account stuff) is indepenedent of the kernel so do that whenever

The Stock Rom´s from Samsung Sammobile have always Radio/modem. Not confused. The Dev's on Custom Rom's have sometime difficulties to flash it by Recovery.

ValenteL said:
The Stock Rom´s from Samsung Sammobile have always Radio/modem. Not confused. The Dev's on Custom Rom's have sometime difficulties to flash it by Recovery.
Click to expand...
Click to collapse
Thanks. So that means we can't restore to a stock Samsung ROM (from Sammobile) without also restore the radio?

testrider said:
Thanks. So that means we can't restore to a stock Samsung ROM (from Sammobile) without also restore the radio?
Click to expand...
Click to collapse
I not undestood. What You mean can't restore?
The nandroid backup never made backup from modem. The restore can't restore it.

[Q] i9505 "no signal" after 4.42 Google ROM upgrade

Hi,
I own a GS4 - i9505G - with google ROM edition v 4.3.
yesterday I tried to upgrade the ROM to 4.42 (Google ROM clean version without any tweaks, found here: http://forum.xda-developers.com/showthread.php?t=2341026).
After the upgrade, the UI & ROM seem to work fine but I have no carrier signal.
When I perform the mobile networks operators' search I can see all networks and by clicking "Choose automatically" I managed to renew the signal. However, after a very short while the signal is lost again (manual joining to the network does not work at all).
I searched and found this thread: http://forum.xda-developers.com/showthread.php?t=2192025
and this lead me to use ODIN and flash the modem (twice, as recomended).
I used the modem file exactly for my phone base version which is: XXUBMH1.
However, even after flashing twice - still no signal....
Since I had Nandroid backup (always VERY highly recommended) I returned to the original 4.3 ROM version and then everything worked fine.
I also made another try to identify the issue and installed the 4.42 Google ROM edition which is not the Google clean original version and performed a factory wipe and cleaning everything
(this time the ROM I used was downloaded from here: http://forum.xda-developers.com/showthread.php?t=2557353).
However, same story and no signal....
I would very much appreciate any idea how to solve this issue.
By the way - from December I began to receive a notification on the device that an upgrade ROM was downloaded requesting me to click to install. However, when I tried to operate it the process always failed in the first steps (don't remember the error code). If anyone can direct me where to delete the file that was downloaded - it will also be very helpful due to the low free memory on the device.
Thanks in advance for all the help!

I now that for some roms you need to use TWRP recovery, or you will get "no signal".
Try flashing the rom with TWRP recovery and see if that solves your problems.

thanks but no cure yet
Lennyz1988 said:
I now that for some roms you need to use TWRP recovery, or you will get "no signal".
Try flashing the rom with TWRP recovery and see if that solves your problems.
Click to expand...
Click to collapse
Thanks for the advice!
However, it seems that the cure is elsewhere. I had the PhilZ 6, and now converted to TWRP, but issue stays the same.
It appears that the signal is not totally lost, but the network connection can only be maintained for a short while, and only after a reset and when choosing automatic network registration. Soon after the signal disappears.
All other wireless aspects (WIFI, BT) seem to be working fine like before.
I am still breaking my teeth for a solution here...
Thanks.

Why are you installing a rom for the i9505 on a i9505G?
That would probably explain your issues.

You say that your phone is I9505G, but both of those roms are for I9505. Don't ever do such thing. You're lucky you didn't brick your phone. Check your IMEI

thanks for the note
bigkusi said:
You say that your phone is I9505G, but both of those roms are for I9505. Don't ever do such thing. You're lucky you didn't brick your phone. Check your IMEI
Click to expand...
Click to collapse
Indeed I didn't notice the difference and thank you for this very important note.
I would like to elaborate - my phone was bought as a standard i9505, but I installed a clean Google Edition ROM on it and then checked under "Settings"/"About phone" menu to see the Model number "GT-I9505G".
I am now not so sure that this is the true model of I9505G, even though this is the information shown on the phone. If the model relates only to original Google Rom Edition phones then I am wrong and probably confused you.
My IMEI is: 3576********. Can you help me with the true definition and the files that I need to install?

thank you for the important note
Lennyz1988 said:
Why are you installing a rom for the i9505 on a i9505G?
That would probably explain your issues.
Click to expand...
Click to collapse
Indeed I didn't notice the difference and thank you for this very important note.
I would like to elaborate - my phone was bought as a standard i9505, but I installed a clean Google Edition ROM on it and then checked under "Settings"/"About phone" menu to see the Model number "GT-I9505G".
I am now not so sure that this is the true model of I9505G, even though this is the information shown on the phone. If the model relates only to original Google Rom Edition phones then I am wrong and probably confused you.
My IMEI is: 3576**********. Can you help me with the true definition and the files that I need to install?

sarigd said:
Indeed I didn't notice the difference and thank you for this very important note.
I would like to elaborate - my phone was bought as a standard i9505, but I installed a clean Google Edition ROM on it and then checked under "Settings"/"About phone" menu to see the Model number "GT-I9505G".
I am now not so sure that this is the true model of I9505G, even though this is the information shown on the phone. If the model relates only to original Google Rom Edition phones then I am wrong and probably confused you.
My IMEI is:xxx. Can you help me with the true definition and the files that I need to install?
Click to expand...
Click to collapse
First of all know this: You should never reveal your IMEI, it's not safe. Edit your post and hide your Imei number.
Now check again if the Imei that you see inside settings> is the same as the one from the back of the phone, under the battery. If its the same then you are fine. As for the device model, you can also find the model under the battery, and if it says that it's a i9505G than that should clear all the confusion.
My advice would be go back to stock official using ODIN. Grab the latest firmware from sammobile. It's always the safest thing to do, and it should handle all the mess

its a I9505
bigkusi said:
First of all know this: You should never reveal your IMEI, it's not safe. Edit your post and hide your Imei number.
Now check again if the Imei that you see inside settings> is the same as the one from the back of the phone, under the battery. If its the same then you are fine. As for the device model, you can also find the model under the battery, and if it says that it's a i9505G than that should clear all the confusion.
My advice would be go back to stock official using ODIN. Grab the latest firmware from sammobile. It's always the safest thing to do, and it should handle all the mess
Click to expand...
Click to collapse
Many thanks for your message - even though I feel stupid both for not thinking to check "under the hood" and also for publishing the IMEI (now fixed).
It appears that my phone model is I9505. This validates my initial question, how to update the Google Edition ROM (clean version) from 4.3 to 4.42, but avoid the loss of network signal... I will try to take it to a local store and solve my unknown issues with the upgrade by paying a few bucks.
Many thanks anyway!

sarigd said:
Many thanks for your message - even though I feel stupid both for not thinking to check "under the hood" and also for publishing the IMEI (now fixed).
It appears that my phone model is I9505. This validates my initial question, how to update the Google Edition ROM (clean version) from 4.3 to 4.42, but avoid the loss of network signal... I will try to take it to a local store and solve my unknown issues with the upgrade by paying a few bucks.
Many thanks anyway!
Click to expand...
Click to collapse
My last guess is that you are using an incorrect modem. Are you still on the old bootloader?
If you are already on the new bootloader, just flash the latest modem available. If it is correct that you have XXUBMH1, then you are using a modem that is to old for 4.4.2.

this is very true
Lennyz1988 said:
My last guess is that you are using an incorrect modem. Are you still on the old bootloader?
If you are already on the new bootloader, just flash the latest modem available. If it is correct that you have XXUBMH1, then you are using a modem that is to old for 4.4.2.
Click to expand...
Click to collapse
I think that this is the correct problem identification and that my modem file is not updated for 4.42.
I tried to flash the updated modem file for XXUBMH1 version (in this link: http://forum.xda-developers.com/showthread.php?t=2192025), but this did not solve the problem (even after flashing it twice).
Could I flash a different modem file than the one set for the phone base version which I have (or do I risk bricking my device)? and does the base version change after installing the new ROM (I forgot to check this after the new ROM was installed)? If yes then I will re-install it and flash the new modem file which should solve the problem.
Thanks for helping out.

Which modem did you flash? And are you on the old or new bootloader?

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

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?

How can I flash a radio onto a different ROM?

I have used various ROMs on various phones over the years. Each ROM with its merits and demerits.
I have used many ROMs on my N900 (international version) and found the Dr Ketan L24 the most suitable for me while A-Basher has the best radio signal (my model of phone seems generally plagued by a weak signal reception or possible signal attenuation).
1. Can I flash the radio from A-Basher (latest version) on to Dr Ketan (latest version) without issue? I suspect the radios have different ROM bases.
2. If yes (my research shows it can be done albeit it with possible unwanted side effects from the modem flashing), what is the proper procedure in order to minimise unwanted glitches?

RADIO ??
Take it you mean Baseband/ modem
Baseband for YOUR MODEL ONLY can be flashed through Odin . See baseband.modem threads in general section .
Or download full stock rom and flash .
https://forum.xda-developers.com/galaxy-note-3/general/direct-download-bootloaders-modems-t3258803

JJEgan said:
RADIO ??
Take it you mean Baseband/ modem
Baseband for YOUR MODEL ONLY can be flashed through Odin . See baseband.modem threads in general section .
Or download full stock rom and flash .
https://forum.xda-developers.com/galaxy-note-3/general/direct-download-bootloaders-modems-t3258803
Click to expand...
Click to collapse
You're getting me wrong. I have read the thread enough times and both basebands are for my model of phone (SM-N900).
A-Basher ROM (N920CXXU1AOH2)
Dr. Ketan L24 ROM (N900ZSUEBOG2)
Can their modem be flashed interchangeably without my phone glitching. I tried something similar to that 3 years ago and was rewarded with no signal/invalid IMEI. I want to try it again but a little differently (and properly) this time. How can it be done (I have the install zip for both ROMs)?
Namely, how do I extract the modem from a custom ROM and flash it onto another one without compromising my WiFi, GSM and IMEI functionality?

Saipro said:
You're getting me wrong. I have read the thread enough times and both basebands are for my model of phone (SM-N900).
A-Basher ROM (N920CXXU1AOH2)
Dr. Ketan L24 ROM (N900ZSUEBOG2)
Can their modem be flashed interchangeably without my phone glitching. I tried something similar to that 3 years ago and was rewarded with no signal/invalid IMEI. I want to try it again but a little differently (and properly) this time. How can it be done (I have the install zip for both ROMs)?
Namely, how do I extract the modem from a custom ROM and flash it onto another one without compromising my WiFi, GSM and IMEI functionality?
Click to expand...
Click to collapse
Still awaiting a helpful response. Thanks in advance