Database Users

[Q] Canadian SGH-i337m - Confused about which modem I need...

Hello,
I was wondering if I had the latest + most recommended radio/modem installed to my device; and also, where I could "tune in" to keep an eye on newer and better releases.
I noticed a few threads about radios and modems, and none of them even mention this MK6 modem... Also, they all seem to be ATT specific.
Anways, I am currently using "Baseband Version: I337MVLUEMK6"; should I look into changing?
Thanks!

You are running 4.3 with that modem. I think you can unlock your phone using the dial pad with that version. If you upgrade to a newer version then it is fairly locked down for tinkering and Knox enabled. If it works for you keep it. So unlock your phone 1st if need be.
You are about 3 releases behind
sammobile.com
Fido link: sammobile.com/firmwares/database/SGH-I337M/FMC/

Youre obviously pretty new to this. Basically MK6 is just a rom firmare update from the one before it. Every time samsung releases an update like 4.4.3 it changes that number letter thing. So if you pick any rom on the forum and you notice a fewdsyd later yhat person has updated the rom from 4.4.3 to 4.4.4 that number will change. Anyways its not too important. I suggest Goldfinger in the android development (regular development not original). Its a good one to start off with. Make sure during install to chose the correct phone. For example im canadian so I pick l337m otherwise it wont work right. Make sure if you chose a different rom than one designed for l337m that you download and flash a l337m kernal after youve installed and booted up the rom. I mean install and let the new rom boot to the setup screen. Then reboot into twrp and flash the l337m kernel of your choice. If you read through the goldfinger posters thread theres a kernel tool link. Its cool because it has all the kernels in one file. Just make sure u download the l337m version of the kernel tool. I hope that helps....also some roms wont connect your data and youll have to set up your apn yourself. I find sometimes I have to set up my rogers apn manually. Amyways now im probably confusing you lol. The unified section has roms that work on all phones or you can download roms like goldfinger that let you choose the phone youre using. Ok so to answer uour question the modem type just refers to the firmware the rom is built on. Haha

Harry TestTickles said:
You are running 4.3 with that modem. I think you can unlock your phone using the dial pad with that version. If you upgrade to a newer version then it is fairly locked down for tinkering and Knox enabled. If it works for you keep it. So unlock your phone 1st if need be.
You are about 3 releases behind
sammobile.com
Fido link: sammobile.com/firmwares/database/SGH-I337M/FMC/
Click to expand...
Click to collapse
Canuckguy said:
Youre obviously pretty new to this. Basically MK6 is just a rom firmare update from the one before it. Every time samsung releases an update like 4.4.3 it changes that number letter thing. So if you pick any rom on the forum and you notice a fewdsyd later yhat person has updated the rom from 4.4.3 to 4.4.4 that number will change. Anyways its not too important. I suggest Goldfinger in the android development (regular development not original). Its a good one to start off with. Make sure during install to chose the correct phone. For example im canadian so I pick l337m otherwise it wont work right. Make sure if you chose a different rom than one designed for l337m that you download and flash a l337m kernal after youve installed and booted up the rom. I mean install and let the new rom boot to the setup screen. Then reboot into twrp and flash the l337m kernel of your choice. If you read through the goldfinger posters thread theres a kernel tool link. Its cool because it has all the kernels in one file. Just make sure u download the l337m version of the kernel tool. I hope that helps....also some roms wont connect your data and youll have to set up your apn yourself. I find sometimes I have to set up my rogers apn manually. Amyways now im probably confusing you lol. The unified section has roms that work on all phones or you can download roms like goldfinger that let you choose the phone youre using. Ok so to answer uour question the modem type just refers to the firmware the rom is built on. Haha
Click to expand...
Click to collapse
Actually, I'm already unlocked + rooted... And running GoldenEye 41 VJUGNH2 @ Android 4.4.2
In fact, I was getting all kinds of data drops and other basic function fails until i switched from AMG1 (I THINK!) to MK6 via Odin desktop.
At this time, everything is working fine... I just wanted to make sure it was running optimally. And apparently it's not, if I'm using a 4.3 radio/modem with a 4.4.x rom...
And also, when installing a new ROM, I've only ever noticed changes in kernel, build number, android version, and ROM version; never Baseband version.
I guess I'll double check the ROM threads, maybe I just missed a part about them being bundled with new Basebands...
Thanks folks!
/update
I flashed NC1, seemed to be the latest one... Everything OK for now.

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?

Chinese model cellular not working

Hi All,
I've flashed @DrakenFX back-to-stock zip's for U variant on my Chinese one, both BootStack and StockSystem zips.
happy to confirm that everything works except the cellular network basically making this a tablet
Trying to go back to Chinese stock, the boot stack for that model has no mirrors on the download page (ZTE_A2017V1.0.0B10_BootStack_by_DrakenFX.zip)
would appreciate if anyone has the file and can re-upload it. Till then I'm stuck with absolutely no phone :crying:
Another option I'm willing to experiment with is to flash the modem so it will work nicely with the U-everything-else.
If anyone has reason to believe this will work and has the modem binary I'll go for it.
Having the U variant supported bands is a-OK by me.
I would've commented on the dev thread but as I'm a new user I'm still not allowed to

Here : ZTE_A2017V1.0.0B10_BootStack_by_DrakenFX.zip , just FYI next time you try to use a different variant Rom, you just need System.img & Boot.img (Stock System zip in this case using my files) , YOU DON'T need other variants Bootstack

TgSn said:
Hi All,
I've flashed @DrakenFX back-to-stock zip's for U variant on my Chinese one, both BootStack and StockSystem zips.
happy to confirm that everything works except the cellular network basically making this a tablet
Trying to go back to Chinese stock, the boot stack for that model has no mirrors on the download page (ZTE_A2017V1.0.0B10_BootStack_by_DrakenFX.zip)
would appreciate if anyone has the file and can re-upload it. Till then I'm stuck with absolutely no phone :crying:
Another option I'm willing to experiment with is to flash the modem so it will work nicely with the U-everything-else.
If anyone has reason to believe this will work and has the modem binary I'll go for it.
Having the U variant supported bands is a-OK by me.
I would've commented on the dev thread but as I'm a new user I'm still not allowed to
Click to expand...
Click to collapse
Hi! I have the exact same problem - no carrier signal after I flashed B29 US ROM on my chinese Axon 7 although the rest of the phone works fine - could you please please please tell me if you got it working and how??
Best Wishes

Hi there.. I read somewhere that it's possible to flash the global ROM on the US model and unlock the 866mbps WiFi speed (2x2 mimo).. Is this actually possible? If so, is it possible to flash just the radio on Lineage OS and get the same effect?

@TgSn
Did ur problem solved if not, then may b i could help you
Waiting for your reply

Note 3 can't get SIM to detect unless flashing stock ROM (various bootloader/modems)

Hi there,
I've been struggling with an Note 3 that for some unknown reason doesn't detected the SIM card unless it's flashed with the stock ROM. The stock ROM doesn't include the bootloader/modem and contains only the OS. I've been asking around on the baseband thread[0] about this but I think this is a broader issue as I can get the phone to work (including SIM detection) with custom bootloader/modem.
Below the steps I've taken so far:
Step 01: Recently I acquired a Note 3 and installed LineageOS 14.1 on it.
Step 02: I noticed that the SIM was not detected by LineageOS and read up on this topic via the usual channels (e.g. reddit, xda forums, LineageOS JIRA). Based on the information I gathered I tested various bootloader/modem settings, especially those other reported as working, but couldn't get LineageOS to detect the SIM with any of these. This is where I signed up to this forum and created my first post describing the situation thus far. [1]
Step 03: After the feedback on this thread I confirmed that the bootloader/modem were flashed correctly. To eliminate any other causes of the firmware being broken by redoing most of the tests with Odin (I've mainly used Heimdall up till that point). Still LineageOS didn't detect my SIM even with combinations that worked for others. [2]
Step 04: To exclude it was an issue specific to LineageOS I installed ~10 other custom ROMS from different groups and using different versions of Android. In all of these the SIM was still not detected. [3]
Step 05: After installing the stock ROM (without the matching bootloader/modem) the Note 3 was suddenly detecting the SIM and I was able to make phone calls. [4]
Step 06: I expressed my confusion about the earlier not working bootloader/modem not working with the other ROMs but that those did work with the stock ROM. [5]
This is where we are now. I don't fully grasp why the stock ROM (which doesn't include bootloader/modem) does detect my SIM whilst all the other custom ROMs don't although they're having the same bootloader/modem binaries that should make it work.
Anyone has experienced this before as well or know what might be the issue?
Thanks!
.san
[0] https://forum.xda-developers.com/galaxy-note-3/general/bootloader-baseband-bl-cp-samsung-t3582504
[1] https://forum.xda-developers.com/showpost.php?p=77273094&postcount=378
[2] https://forum.xda-developers.com/showpost.php?p=77281260&postcount=383
[3] https://forum.xda-developers.com/showpost.php?p=77288153&postcount=385
[4] https://forum.xda-developers.com/showpost.php?p=77307322&postcount=388
[5] https://forum.xda-developers.com/showpost.php?p=77344832&postcount=390

Where are your getting the stock ROM? As far as I know, roms on sammobile.com, updato.com, and samsung-firmware.org all contain a bootloader and modem with the exception of some 4.1.1 or 4.1.2 ROMs.

audit13 said:
Where are your getting the stock ROM? As far as I know, roms on sammobile.com, updato.com, and samsung-firmware.org all contain a bootloader and modem with the exception of some 4.1.1 or 4.1.2 ROMs.
Click to expand...
Click to collapse
I've grabbed them via a page on the ROMs section of this subforum (second link): https://forum.xda-developers.com/showpost.php?p=72540914&postcount=4340
Direct ROM download link: https://mega.nz/#!VU13SY5J!GrYB2Wqbo7DNs_Bbg8trkUcftaeES8jfgWMqXepv2cw
[EDIT] Perhaps I'm wrong and this ROM does include the modem and bootloader. In that can I can perhaps (don't know how) extract the modem/bootloader from that and combine it with a custom ROM. But if it doesn't contain these binaries than I'm clueless on what makes the stock ROM detect the SIM where other ROMs don't.

That mega link says
S5.
Not Note 3.
As does the thread say.
N9005][4.4.2] Galaxy S5 Stock ROM
Thats a 2014 post .
Why not flash stock rom from 2017/18 sources ??

JJEgan said:
That mega link says
S5.
Not Note 3.
As does the thread say.
S5.
You have a Note 3 ??
Click to expand...
Click to collapse
NO SIR.
the highlited link which he gave is from a stock rom ported for Note 3 N9005.
S5 stock rom for Note 3....

JJEgan said:
That mega link says
S5.
Not Note 3.
As does the thread say.
S5.
You have a Note 3 ??
Click to expand...
Click to collapse
Och that is sloppy... not sure why I found that in the Note 3 ROMs section but I should have double checked. Its still weird that that specific ROM does work with the pre-flashed modem/bootloader whist other ROMs don't, right?
I think I have a complete firmware package (that requires Odin/Heimdall) from sammobile somewhere. I'll double check that one.

.san said:
Och that is sloppy... not sure why I found that in the Note 3 ROMs section but I should have double checked. Its still weird that that specific ROM does work with the pre-flashed modem/bootloader whist other ROMs don't, right?
I think I have a complete firmware package (that requires Odin/Heimdall) from sammobile somewhere. I'll double check that one.
Click to expand...
Click to collapse
you can use BL and CP files form here. and flash them separately via odin and check if it works.
https://forum.xda-developers.com/galaxy-note-3/general/bootloader-baseband-bl-cp-samsung-t3582504

dark_phoenix said:
you can use BL and CP files form here. and flash them separately via odin and check if it works.
https://forum.xda-developers.com/galaxy-note-3/general/bootloader-baseband-bl-cp-samsung-t3582504
Click to expand...
Click to collapse
That is what I tried to explain in the OP. These bootloader/modem combinations ONLY work with the stock ROM I linked to.

As I said its not a Note 3 stock rom.
Its a custom /ported rom.
Stock sammobile. Updato.com etc

.san said:
I've grabbed them via a page on the ROMs section of this subforum (second link): https://forum.xda-developers.com/showpost.php?p=72540914&postcount=4340
Direct ROM download link: https://mega.nz/#!VU13SY5J!GrYB2Wqbo7DNs_Bbg8trkUcftaeES8jfgWMqXepv2cw
[EDIT] Perhaps I'm wrong and this ROM does include the modem and bootloader. In that can I can perhaps (don't know how) extract the modem/bootloader from that and combine it with a custom ROM. But if it doesn't contain these binaries than I'm clueless on what makes the stock ROM detect the SIM where other ROMs don't.
Click to expand...
Click to collapse
That is not a stock ROM, it is custom ROM that doesn't contain a bootloader or modem. You need to flash the latest stock ROM from sammobile.com or updato.com.

I did a quick test with a full stock firmware package from sammobile. Also with this package I get the SIM card detected. The moment I flash, using TWRP, another ROM (just tested a recent LineageOS 14.1 nighty) the SIM card is no longer detected. As far as I'm concerned this excludes the stock firmware from the pile of options and re-affirms my suspicion that it is something related to the ROMs themselves. The Samsung ROMs (either official or ported) do something different than any of the other ROMs... at least on this device.

Its your phone then thats the problem.

Which stock ROM are you flashing?

audit13 said:
Which stock ROM are you flashing?
Click to expand...
Click to collapse
N9005XXSGBPL4_N9005PHNGBOJ1_PHN which I got from this sammobile page.

That did look like the latest ROM.
Just to confirm but flashing stock ROM, flashing twrp, and flashing a custom ROM gives you the sim problem?

audit13 said:
That did look like the latest ROM.
Just to confirm but flashing stock ROM, flashing twrp, and flashing a custom ROM gives you the sim problem?
Click to expand...
Click to collapse
Yup, that is the issue! Weird isn't it?

.san said:
Yup, that is the issue! Weird isn't it?
Click to expand...
Click to collapse
Yes, it is strange.
Unfortunately, I'm out of ideas.

.san said:
Yup, that is the issue! Weird isn't it?
Click to expand...
Click to collapse
yes. this is weird.
but on the other hand just to know.
did you try different sim's ? may be the issue is related to that particular sim card.
i too have note 3 N-9005. but i never faced this type of situation ever.
my current Bootloader (BL) is N9005XXUGBPH2
Baseband (CP) is N9005DXUGBOK3
Current Rom is AryaMod Note 7 Port 2.1
i have used Ressurection remix, C9 pro upto version 4, magma Nx, Los 14, Arya mod v.9 on this same BL and CP. and NO issues so far.
may be you can try once more with these same settings/files as mine.
1st Flash Stock Rom
2nd Check from Phone Info your current settings in the Firmware tab (backup it's apk now, so that you can install it later without logging in G-services.) screenshot attached. Download the SAME BL & CP and flash it via ODIN.
3rd if it's the same, then go ahead and use TWRP 2.8.7.0 (this version is what i use).
4th now flash any of these roms written above. start with RR as the Rom is lesser in size.
5th (optional) if you want to flash a different kernel too, but flash after rom if the kernel included does not work.
now tell us the results, if the issue is resolved or not.
ONE MORE THING.
this model N9005 does not have LTE Band 40 support so if your network only provide LTE on band 40 like mine does. LTE wont work. Only 2g or 3g will work. and stock rom's 1st option of network is 2g or 3g i think.

HI,
think I'm having the same problem here. Except for me the official 14.1 version is detecting my sim card. All other "unofficial versions" 15.1 &16 are not detecting my SIM card. Any workarounds ?

Ive had the issue to with even the touch wiz variants of arya mod and others I'm in the united states though and I have to do tmo variants of aosp. Im using a emmc brick bug unlocked note 3. I'm on vzw btw. Im worried to do a full flash because ive seen mixed things on doing a full Odin update on the emmc brick bug phones saying it reverses the unlock

Reason behind flashing latest firmware

Sorry for this noob question. But i appreciate any answers...
Most of the rom devs advice to flash 'latest firmware' before flashing their roms. First of all What is meant by firmware? Is it the original rom when the device is bought? If yes then why advise flashing latest firmware and then clean flash custom roms?. I mean the latest firmware gets wiped on clean install. Then why recommend latest firmware flashing?

Roshin1401 said:
Sorry for this noob question. But i appreciate any answers...
Most of the rom devs advice to flash 'latest firmware' before flashing their roms. First of all What is meant by firmware? Is it the original rom when the device is bought? If yes then why advise flashing latest firmware and then clean flash custom roms?. I mean the latest firmware gets wiped on clean install. Then why recommend latest firmware flashing?
Click to expand...
Click to collapse
OEMs usually refer 'ROM' as 'Farmware'.
But when developers say 'Firmware', they usually mean 'Baseband' or 'Radio'. This is not a full Stock ROM, but only a small part of it. It stays on the device even after Clean Flashing.
When an update of Stock ROM released, it mostly comes with a newer & updated Firmware (also called Baseband or Radio). Developers sync those new changes into their custom ROMs and Kernels when they release a new build, for a better experience (they usually mention it in the changelog, like - 337 sync).
Sometimes few features of those new custom ROM or Kernel builds may not work properly if a device is running on older version of Firmware. That's why they advise users to flash latest Firmware.
Updating Firmware is easy. Just flash the latest version's zip file via Recovery. That's it. No need to wipe anything. And this procedure won't wipe any user data either.
I hope I cleared your doubts...

NPriyo said:
OEMs usually refer 'ROM' as 'Farmware'.
But when developers say 'Firmware', they usually mean 'Baseband' or 'Radio'. This is not a full Stock ROM, but only a small part of it. It stays on the device even after Clean Flashing.
When an update of Stock ROM released, it mostly comes with a newer & updated Firmware (also called Baseband or Radio). Developers sync those new changes into their custom ROMs and Kernels when they release a new build, for a better experience (they usually mention it in the changelog, like - 337 sync).
Sometimes few features of those new custom ROM or Kernel builds may not work properly if a device is running on older version of Firmware. That's why they advise users to flash latest Firmware.
Updating Firmware is easy. Just flash the latest version's zip file via Recovery. That's it. No need to wipe anything. And this procedure won't wipe any user data either.
I hope I cleared your doubts...
Click to expand...
Click to collapse
So you are saying it is always good to flash latest firmware. Right?. But in which partition does it sit?

Roshin1401 said:
So you are saying it is always good to flash latest firmware. Right?. But in which partition does it sit?
Click to expand...
Click to collapse
Sometimes Baseband can reeduce internet speed.
It is probably stored in Modem partition.

NPriyo said:
Sometimes Baseband can reeduce internet speed.
It is probably stored in Modem partition.
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Can I access that partition?:silly: