[Q] ROM with default latest baseband + LTE support? - Nexus 4 Q&A, Help & Troubleshooting

Hi,
I couldn't find anything related to this on the forum so here it goes.
I know that google has disabled LTE support in latest baseband release. And one would be able to flash the old baseband to regain LTE support. However there's many steps that one need to do to get it enabled (type in service code, change LTE setting, enter APN etc.), not to mention you also loose some enhancements/bugfixes.
So my question is that, is there any way one can build a custom ROM + modified latest baseband (4.2.2) to have default enabled LTE support directly? (means no service code change, APN change etc. and with all the possible enhancement from the baseband build)
If yes, please direct me to the post or instruction, if not, why not?
Thanks for answering!

bluefoxreg said:
Hi,
I couldn't find anything related to this on the forum so here it goes.
I know that google has disabled LTE support in latest baseband release. And one would be able to flash the old baseband to regain LTE support. However there's many steps that one need to do to get it enabled (type in service code, change LTE setting, enter APN etc.), not to mention you also loose some enhancements/bugfixes.
So my question is that, is there any way one can build a custom ROM + modified latest baseband (4.2.2) to have default enabled LTE support directly? (means no service code change, APN change etc. and with all the possible enhancement from the baseband build)
If yes, please direct me to the post or instruction, if not, why not?
Thanks for answering!
Click to expand...
Click to collapse
You can just use the old baseband and have LTE on any ROM.
Sent from my Nexus 4 using Tapatalk 2

Thanks for your reply. Yes, as I stated in my OP, I'm well aware of the ability to use old baseband on the other ROMs to have LTE. However, I'd like to have LTE on latest baseband, and also native LTE support without fiddling with the settings.
I would like to learn how to do it if there's no one already doing it, just need some direction to the right documentation/guides or explain why its not feasible.

bluefoxreg said:
Thanks for your reply. Yes, as I stated in my OP, I'm well aware of the ability to use old baseband on the other ROMs to have LTE. However, I'd like to have LTE on latest baseband, and also native LTE support without fiddling with the settings.
I would like to learn how to do it if there's no one already doing it, just need some direction to the right documentation/guides or explain why its not feasible.
Click to expand...
Click to collapse
I don't believe the baseband software is open source. Since the LTE functionality was removed from the baseband itself, flashing a ROM is not going to restore it to the .44 baseband.

JaiaV said:
I don't believe the baseband software is open source. Since the LTE functionality was removed from the baseband itself, flashing a ROM is not going to restore it to the .44 baseband.
Click to expand...
Click to collapse
I see, that's what I'm afraid of, so I guess the best one can do is pack a .39 baseband with custom 4.2.2 ROM with default LTE configuration then? So I guess my follow up questions is how much of the LTE operation is controlled by the basedband module?
Can a ROM have LTE as Preferred Network setting?
I think its possible to have default APN configured baked into the ROM?

Related

[q] lg g2 320l korean version now in uk

I am requesting assistance with basic development of the Korean 320L Variant of this device. I chose it due to the removable battery and 64gb micro sd card capability over the standard version available here in the uk.
I have achieved Root which is excellent but would like a CWM/TWRP based recovery if this is possible. I have tried the Korean Telecom 320k version to no avail.
Any help or guidance would be appreciated, I have already looked at the existing threads for answers but I see none (I may be missing something!)
jody04c said:
I am requesting assistance with basic development of the Korean 320L Variant of this device. I chose it due to the removable battery and 64gb micro sd card capability over the standard version available here in the uk.
I have achieved Root which is excellent but would like a CWM/TWRP based recovery if this is possible. I have tried the Korean Telecom 320k version to no avail.
Any help or guidance would be appreciated, I have already looked at the existing threads for answers but I see none (I may be missing something!)
Click to expand...
Click to collapse
I think i know what it might be.Did you update to the last OTA before you try the recovery?If the answer is yes then this is your problem,and you will need to revert back to stock to do so (and stay there until a new recovery img for the new rom arrives).
woof123 said:
I think i know what it might be.Did you update to the last OTA before you try the recovery?
Click to expand...
Click to collapse
I'm currently running JDQ39B / Software version F320l11C
jody04c said:
I'm currently running JDQ39B / Software version F320l11C
Click to expand...
Click to collapse
Yes then this is the problem it wont work for the latest version.
woof123 said:
Yes then this is the problem it wont work for the latest version.
Click to expand...
Click to collapse
BolloXXX to that! Thanks for the update though. I guess I will have to wait for a workaround.. Times like this makes me miss the simplicity of a Nexus and an unlocked bootloader.
jody04c said:
BolloXXX to that! Thanks for the update though. I guess I will have to wait for a workaround.. Times like this makes me miss the simplicity of a Nexus and an unlocked bootloader.
Click to expand...
Click to collapse
Its very easy to go back to another rom if you want,i did that with mine like 3-4 times already :good: You just need the rom and FlashTool.1.0.54.
They do have the K variant roms for download here:Btw S and L models are pretty much the same,mine is the S one but if i open it it says F320S/L.Even flashed it with the K software with no problems at all.
The latest that works is 10M
http://forum.xda-developers.com/showthread.php?t=2432476
Any LTE/4G on f320l in UK?
woof123 said:
Its very easy to go back to another rom if you want,i did that with mine like 3-4 times already :good: You just need the rom and FlashTool.1.0.54.
They do have the K variant roms for download here:Btw S and L models are pretty much the same,mine is the S one but if i open it it says F320S/L.Even flashed it with the K software with no problems at all.
The latest that works is 10M
http://forum.xda-developers.com/showthread.php?t=2432476
Click to expand...
Click to collapse
Hi jody04c and woof123
I too have an f320l model. Have you managed to get this to work on UK LTE/4G connections? I have an EE 4G Sim but can only get 3G. Various people are saying different things.
The pda site says limited band support, but the 5457#*320# menu has LTE Band 3 and LTE Band 7 listed. The latest Korean manual for 4.4.2 OTA update now also lists Band 7 support in the manual too.
However, I notice that In Korea LGUPlus don't use these LTE bands (according to wikipedia) and so I was wondering if I should just root and try loading the K or S ROM which might open these up?
I have seen the return to Stock page - for me to use that, will I need to Root first? Any advice on rooting the Korean variants (sorry if this is listed elsewhere, I'm not a familar user here and often find several threads with different details/steps).
Thanks in advance for any help here.
mikeefreedom said:
Hi jody04c and woof123
I too have an f320l model. Have you managed to get this to work on UK LTE/4G connections? I have an EE 4G Sim but can only get 3G. Various people are saying different things.
The pda site says limited band support, but the 5457#*320# menu has LTE Band 3 and LTE Band 7 listed. The latest Korean manual for 4.4.2 OTA update now also lists Band 7 support in the manual too.
However, I notice that In Korea LGUPlus don't use these LTE bands (according to wikipedia) and so I was wondering if I should just root and try loading the K or S ROM which might open these up?
I have seen the return to Stock page - for me to use that, will I need to Root first? Any advice on rooting the Korean variants (sorry if this is listed elsewhere, I'm not a familar user here and often find several threads with different details/steps).
Thanks in advance for any help here.
Click to expand...
Click to collapse
So has anyone had success getting the f320l working on uk 4g by using stock/custom s/k rom. As suggested here hardware with s and l seem to be same or similar, and the l model is used by lugplus who don't support EU lte bands so probably block through their software, whereas skt on the f320s support bands on EU. The latest f320l ota update also says it supports band 7, but it didn't work with uk Ee for me with default settings.

Install T-mobile firmware on internation

Is there anyway that I can install T-mobile firmware on my N9005 Galaxy Note 3? I tried to do it but it fails everytime. is there any way I can change my model number or something so I can install different firmwares from different variants? I ask this because I used to own a HTC One and I was able to change the model number so I could install different firmwares.
samanbabah said:
Is there anyway that I can install T-mobile firmware on my N9005 Galaxy Note 3? I tried to do it but it fails everytime. is there any way I can change my model number or something so I can install different firmwares from different variants? I ask this because I used to own a HTC One and I was able to change the model number so I could install different firmwares.
Click to expand...
Click to collapse
The better question is you have an international model so what is your goal? Are you trying to install a specific ROM to enable features (like modem frequencies) which have been disabled? You cannot install another model ROM on your device or you will just go into a boot loop or soft-brick your device and you will need to go through a recovery process. I'm going to assume you want to install a ROM for a specific feature or set of features which can be done but you simply need to ROOT and find a compatible ROM with the features you require.
Hope this helps!
cellrama said:
The better question is you have an international model so what is your goal? Are you trying to install a specific ROM to enable features (like modem frequencies) which have been disabled? You cannot install another model ROM on your device or you will just go into a boot loop or soft-brick your device and you will need to go through a recovery process. I'm going to assume you want to install a ROM for a specific feature or set of features which can be done but you simply need to ROOT and find a compatible ROM with the features you require.
Hope this helps!
Click to expand...
Click to collapse
yeah I was going to see if I would get LTE speeds if I'd installed the t-mobile firmware. also I want to be able to use Wifi calling as well. but the main reason I wanted to try out t-mobile firmware was, so I could get LTE speeds.
samanbabah said:
yeah I was going to see if I would get LTE speeds if I'd installed the t-mobile firmware. also I want to be able to use Wifi calling as well. but the main reason I wanted to try out t-mobile firmware was, so I could get LTE speeds.
Click to expand...
Click to collapse
Please refer to this post: http://forum.xda-developers.com/showthread.php?p=46653611#post46653611. You have posted a duplicate thread essentially asking the same information. I have provided a link which once viewed and completed should hopefully solve your issue. If not, respond to that thread and I'll help where possible. Thanks!

[Q] i9505 LTE-Only / ServiceMode

I'm trying to get my S4 to LTE only mode so it will accept non whitelisted LTE networks. This used to be possible with an app called "ServiceMode Shortcut", but it seems this is no longer supported in the new rom.
Does any of you know how to get there in 4.4?
88weighed said:
I'm trying to get my S4 to LTE only mode so it will accept non whitelisted LTE networks. This used to be possible with an app called "ServiceMode Shortcut", but it seems this is no longer supported in the new rom.
Does any of you know how to get there in 4.4?
Click to expand...
Click to collapse
Flash ME2 modem mate then , set it up and reflash latest modem once again. Im on 4.4.2 and in order for me to activate HD voice i need to flash mk2 modem and go to dialer and dial those number ie: *#0011# in order to reach HD voice settings and reflash the latest modem
Thanks for the reply.
Does it still work in the GE rom? I don't mind installing that ... I really need it to be easily switchable. I use this phone in a work environment where I also do a lot testing on 2G, 3G and 4G networks. Otherwise I might just downgrade.
88weighed said:
Thanks for the reply.
Does it still work in the GE rom? I don't mind installing that ... I really need it to be easily switchable. I use this phone in a work environment where I also do a lot testing on 2G, 3G and 4G networks. Otherwise I might just downgrade.
Click to expand...
Click to collapse
If your planning to edit something in Servicemode . You need to flash the modem ME2 via odin mate And yes it should work fine .Since Im using a 4.4.2 kitkat
...

GT-I9505 4g LTE option missing

My Samsung galaxy s4 GT-I9505 has no 4g LTE option running on stock Android 4.4.2. Please help me!
khsh97 said:
My Samsung galaxy s4 GT-I9505 has no 4g LTE option running on stock Android 4.4.2. Please help me!
Click to expand...
Click to collapse
If you dial *#*#4636#*#* do you get the testing menu? If so, go into Phone Information and check you are set to LTE/GSM auto or similar.
Edgio60 said:
If you dial *#*#4636#*#* do you get the testing menu? If so, go into Phone Information and check you are set to LTE/GSM auto or similar.
Click to expand...
Click to collapse
Sorry to bump old thread but I do not get any testing by dialing *#*#4636#*#*. I am on official stock kitkat.
khsh97 said:
Sorry to bump old thread but I do not get any testing by dialing *#*#4636#*#*. I am on official stock kitkat.
Click to expand...
Click to collapse
If you input that code in the dialer (correctly) it should take you to a screen called "Testing". If it doesn't then there is something wrong with your phone. This works on pretty much all phones.
@GDReaper: The Galaxy S4 does not recognize that particular version of the USSD code. It can be run however through the Phone Info app.
@khsh97: 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)
Before using GDReaper's suggested method, post the information requested, so that we can eliminate other possibilities for why you don't have a LTE option.
Strephon Alkhalikoi said:
@GDReaper: The Galaxy S4 does not recognize that particular version of the USSD code. It can be run however through the Phone Info app.
.
Click to expand...
Click to collapse
I ran the code before posting and it worked on my S4. However, am running the gpe rom. Maybe that's why it actually worked
That is probable, as I'm running a rooted and debloated Touchwiz and it didn't work. But as mentioned, the Phone Info app is another way to get there.
Sorry for late reply!
Model No: GT-I9505
Android version: 4.4.2
Firmware: I9505XXUGNE8(official stock)
AP: I9505XXUGNE8
CP: I9505VFGGNE8
CSC: I9505VFGGNE2
My phone is rooted with towelroot however the option was missing before root as well.
BTW, I don't have LTE sim, does that matter?
If that matter then how can I check without LTE sim?
And yeah, the code *#*#4636#*#* is not working in my galaxy s4.
I am going to check out phone info app.
If you don't have a LTE SIM, you won't have LTE as an option. Upgrade your SIM to a LTE version and you should then be able to select LTE.
Strephon Alkhalikoi said:
If you don't have a LTE SIM, you won't have LTE as an option. Upgrade your SIM to a LTE version and you should then be able to select LTE.
Click to expand...
Click to collapse
Ok, thank you...!!!
By the way, why the code is not working on official touchwiz roms?
Ask Samsung that question, but don't expect an answer. There could be a multitude of reasons why Samsung disabled it, but unless they pony up a response we'll never know.
Lol, Nice answer!!! Anyway phone info app can do it so why we should argue with samsung for disabling that code.
I think you must have firmware based on your country to have LTE. Now I'm downloading 4.4.2 for my country and I'll keep you posted
@velizarcho123: And you'd be wrong. LTE depends on two things: having a LTE-compatible SIM and having the proper frequencies in the radio chip to pick up LTE service. Assuming the device is neither region nor SIM locked, the moment you put in a LTE SIM Android will load the APN for the carrier into Settings. LTE should then work immediately. If it doesn't, the APN can be modified in most devices so it does work.
That said, if possible, using the firmware from your home region is the smartest idea, as Samsung does modify the firmware a bit, usually by removing languages other than those spoken in the region.
Strephon Alkhalikoi said:
@velizarcho123: And you'd be wrong. LTE depends on two things: having a LTE-compatible SIM and having the proper frequencies in the radio chip to pick up LTE service. Assuming the device is neither region nor SIM locked, the moment you put in a LTE SIM Android will load the APN for the carrier into Settings. LTE should then work immediately. If it doesn't, the APN can be modified in most devices so it does work.
That said, if possible, using the firmware from your home region is the smartest idea, as Samsung does modify the firmware a bit, usually by removing languages other than those spoken in the region.
Click to expand...
Click to collapse
All firmwares have LTE, I does a trick - rooted my phone and modified a system file that enables LTE in the network menu. This is stupid Samsung restriction.
velizarcho123 said:
All firmwares have LTE, I does a trick - rooted my phone and modified a system file that enables LTE in the network menu. This is stupid Samsung restriction.
Click to expand...
Click to collapse
Reread my post. You were able to modify the firmware, but that modification would not have worked if the SIM wasn't capable of LTE and the radio chip didn't support the frequencies used.
EDIT: Just to clarify, Samsung modifying firmware to remove the option to use LTE does not mean the firmware doesn't support LTE. Clearly it has to support LTE if your modification worked. This means that firmware is eliminated as a variable, leaving the two remaining variables as the SIM and the radio chip.

G900F Rom Recommendation

Hi,
I have a G900F I got in the UK and I've just moved to Canada with. Problem is it doesn't support some of the bands here so I find I often have a poor signal. I'm happy with the stock ROM but I believe if I am to open it up for all bands I need a custom ROM.
I don't need anything too flashy, but I'd like everything to work and be responsive.
In terms of the most complete ROMs it seems LineageOS Official and Resurrection Remixed are the most popular. Can anyone comment? How about Android 6 vs 7?
Thanks
Used to use resurrection but now that I've moved to lineage os I can say that its better and getting improved every update it gets
Beaksterboy said:
Hi,
I have a G900F I got in the UK and I've just moved to Canada with. Problem is it doesn't support some of the bands here so I find I often have a poor signal. I'm happy with the stock ROM but I believe if I am to open it up for all bands I need a custom ROM.
I don't need anything too flashy, but I'd like everything to work and be responsive.
In terms of the most complete ROMs it seems LineageOS Official and Resurrection Remixed are the most popular. Can anyone comment? How about Android 6 vs 7?
Thanks
Click to expand...
Click to collapse
g900f is almost identical if not the exact same as the canadian s5 g900w8.
you would need to use correct freq for your carrier, search will provide a howto. worse case scenario is to flash a canadian 6.0.1 modem from any canadian 6.0.1 stock fw
if trying to figure out connectivity, stay w/stock first as modems are from stock fw.
imo try superlite 6.0.1, it stock based and only takes a few minutes to install that way you can test out your carrier connectivity issues
https://forum.xda-developers.com/ga...-superlite-mini-mm-v1-0-361mb-g900w8-t3497158
So I can keep my stock firmware and just replace the G900F baseband (G900FXXS1CQAV) with the Bell Canada SM-G900W8 Modem and everything will be the same except the phone will work on the Bell Canada frequencies?
I had been planning to follow this guide: https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059 to enable the 1700MHz band which is disabled on the G900F, but if flashing a Canadian modem will enable this band that sounds easiest.
Do I need to download the full 1.5GB firmware and extract the modem from it?
Thanks
Beaksterboy said:
So I can keep my stock firmware and just replace the G900F baseband (G900FXXS1CQAV) with the Bell Canada SM-G900W8 Modem and everything will be the same except the phone will work on the Bell Canada frequencies?
I had been planning to follow this guide: https://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059 to enable the 1700MHz band which is disabled on the G900F, but if flashing a Canadian modem will enable this band that sounds easiest.
Do I need to download the full 1.5GB firmware and extract the modem from it?
Thanks
Click to expand...
Click to collapse
ive never tried flashing a mdm from another model as ive never needed to for the s5.
ive not read enough to know if its possible or if it has any neg consequences.
easiest would be to change freq w/current mdm, search for samsung secret service codes to view and maybe change current freq
good place to start is here https://forum.xda-developers.com/showthread.php?t=2729694
I've done a lot of research on this forum. Most people say that installing G900W8 firmware on G900F isn't possible. Also it seems that it is the NVRAM which stores what bands are allowed on what model, so simply flashing a different modem won't make a difference.
Some people are saying that the hardware is different and this is what limits the bands, but I don't believe so, the radio/modem chip is the same version between models.
Trying to follow the link I posted earlier to change the NVRAM values after installing a custom ROM appears to be the only way. Some people say it works, and others say it only appears to work. The original thread was closed years ago so I guess I'll just need to try it and see.
Alternatively I could buy 2 phones, one W8 to use in Canada and a F to use in Europe, this seems silly though.

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