Nexus 4 and LTE on 4.2.2 - Nexus 4 Q&A, Help & Troubleshooting

I saw the giant thread and was trying to find steps on how to do this with the 4.2.2 update which i had issues finding.
I was wondering if anyone can link me or point me in the right directions of doing this. I have not rooted or flashed an android phone before so some step by step guides will be good. This t-mobile HSPA and or 3g in Houston is terribly slow at some spots and times, it would be nice to have the LTE working.

Go through normal process of rooting, custom recovery etc....flash older radio version, flash this ROM. Most simple process I can direct you to.
http://forum.xda-developers.com/showthread.php?t=2267890
Sent from my Nexus 4 using xda app-developers app

It just needs to be reverted back to the older version in order for it to work?

sotorious said:
It just needs to be reverted back to the older version in order for it to work
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you just need to revert the radio to an older version. the .33 and .27 radios are popular. you can do this, have lte, on any rom.

I guess its time to start doing my homework.

Related

T-Mobile USA and Older radios problem!

We all know that after updating to 4.2.2 via OTA and the new radio .48 the LTE is disabled.Some users have flashed older radios .27 and .33 and were successful enabling LTE again on our devices! However most of T-Mobile USA users(including myself) are NOT able to get older radios work on stock rooted 4.2.2! After flashing older radios you have usable data connection but no audio in call! I`m not able to hear anything when connected to a call! So far I have tried:
1.Flashing .27 radio and installing the RIL for 4.2.1= no audio in call
2. Flashing .33 radio and installing the RIL for 4.2.1= no audio in call
If anyone has been successful getting it work on T-Mobile USA, please share your steps and methods to achieve that!
Thanks
BigDig said:
We all know that after updating to 4.2.2 via OTA and the new radio .48 the LTE is disabled.Some users have flashed older radios .27 and .33 and were successful enabling LTE again on our devices! However most of T-Mobile USA users(including myself) are NOT able to get older radios work on stock rooted 4.2.2! After flashing older radios you have usable data connection but no audio in call! I`m not able to hear anything when connected to a call! So far I have tried:
1.Flashing .27 radio and installing the RIL for 4.2.1= no audio in call
2. Flashing .33 radio and installing the RIL for 4.2.1= no audio in call
If anyone has been successful getting it work on T-Mobile USA, please share your steps and methods to achieve that!
Thanks
Click to expand...
Click to collapse
I had the same issue. .33 screwed up my phone. I couldn't hear anything from the earpiece. Unfortunately I found the reason why and .48 fixed the problem. Anyways, which city do you live in that has LTE from T-Mobile? There are very very few LTE coverage in USA from t mobile. It would be pointless to enable lte if you do not live in a lte coverage area. I don't know why .33 won't work on 4.2.1. It should work.
Sent from my Nexus 4 using Tapatalk 2
scream4cheese said:
I had the same issue. .33 screwed up my phone. I couldn't hear anything from the earpiece. Unfortunately I found the reason why and .48 fixed the problem. Anyways, which city do you live in that has LTE from T-Mobile? There are very very few LTE coverage in USA from t mobile. It would be pointless to enable lte if you do not live in a lte coverage area. I don't know why .33 won't work on 4.2.1. It should work.
Sent from my Nexus 4 using Tapatalk 2
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I live in Boston. I don`t know if LTE is live yet, but I just wanted to try and see. But older radios don`t work....Have you tried older radios+custom roms?
BigDig said:
I live in Boston. I don`t know if LTE is live yet, but I just wanted to try and see. But older radios don`t work....Have you tried older radios+custom roms?
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I don't think it would matter if the phone was running on a custom rom with a old baseband. Basebands, bootloaders, kernels and roms are kinda like their own thing, y'know.
Same thing happened to me, had to go back to .48
scream4cheese said:
I don't think it would matter if the phone was running on a custom rom with a old baseband. Basebands, bootloaders, kernels and roms are kinda like their own thing, y'know.
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That's not exactly right though... The kernel controls the radio(baseband)
Sent from my Nexus 4 using xda app-developers app
Yeah!!! What's the deal with that I can't get .33 to work on stock rooted 4.2.2 I'm also from the Boston area.
Sent from my Nexus 4 using xda premium
If you want a solid ROM that works with the old radio use CM10.1 Nightlies . It works great with both radios.
Daddy_617 said:
Yeah!!! What's the deal with that I can't get .33 to work on stock rooted 4.2.2 I'm also from the Boston area.
Sent from my Nexus 4 using xda premium
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Yeah, I guess we have to jump to custom roms whenever LTE is live in Boston....
bump! Maybe a Dev can give us some more info on that matter???
I've seen the LTE APN setup in the switch as fast.Tmobile.com . I'm thinking you need that for it to work once it's turned on
Flashed .33 too and had no sound. Had to flash back 48
On Tmobile USA too
Sent from my Nexus 4 using xda app-developers app
I flashed Dark Jelly n4 with the .33 radio and it works fine coming from the .48 on t-mobile. (I was on stock originally then got the update)
No problem here but i am using the franco kernel if it matters.
djdanska said:
I flashed Dark Jelly n4 with the .33 radio and it works fine coming from the .48 on t-mobile. (I was on stock originally then got the update)
No problem here but i am using the franco kernel if it matters.
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Very useful info! Thanks

Radio update question

Let me start by saying I know I have asked a few questions lately and I really appreciate the help. I am brand new to the nexus and don't want to brick it. I don't got money to just get another if I break it so I am being very careful with what I flash.
That said, I am planning to update my radio and I have read a few threads with regards to the topic. I found most of what I needed to know. My problem is I read a lot of posts saying it "broke" sensors or WiFi when flashed with the 4.2.1 Roms. Now it also goes on to say that 4.2.2. works fine with the newest radio, but i also seen where some were using a older radio (.27 I think it was)
Question 1- Can I use the .27 radio with the newest roms or is there a reason I need to use the .48 radio? Reason being the newest radio disables lte connectivity. Maybe the .27 keeps it?
Question 2- do I need to flash the new bootloader with the radio?
Sorry to act like a noob but with my older g-1 flashing the wrong radio and SPL could brick the device. So once again I am just trying to make certain I am taking the right steps. Thanks in advance...
Sent from my Nexus 4 using xda premium
Question 1:
Some people lose audio on phone calls when running the older radios on 4.2.2, but CyanogenMod 10.1-based ROMs work fine with .33 or .27 basebands, at least in my personal experience.
Question 2:
Not sure if there is some interplay between the bootloader and whether the radios work on 4.2.2. Haven't heard of there being any issues in this regard.
Sent from my Nexus 4 using Tapatalk 2
Yeah I would figure the cm variants would be coded for all different radios . I just didn't know if anyone out there knew the exact differences in radios and bootloaders. I have read so many posts and still can't get a really clear explanation.
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selfinflicted1 said:
Yeah I would figure the cm variants would be coded for all different radios . I just didn't know if anyone out there knew the exact differences in radios and bootloaders. I have read so many posts and still can't get a really clear explanation.
Sent from my Nexus 4 using xda premium
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I flashed .33 radio on 4.2.2 in order to keep using LTE here in Mexico. Phone works fine, haven't had any issues with it so far.
pacoguevara said:
I flashed .33 radio on 4.2.2 in order to keep using LTE here in Mexico. Phone works fine, haven't had any issues with it so far.
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So you're using CM 10.1 with Radio .33 without issues and maintaining LTE/4G connectivity?
If so is it the latest nightly?
I was under the impression that the 33 radio caused all kinds of problems with 4.2.2. Are you sure you aren't on 4.2.1? Its crazy because I seen a lot of posts saying that they never updated but everything worked right on 4.2.2. I really wish someone could shed light on this issue.
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selfinflicted1 said:
I was under the impression that the 33 radio caused all kinds of problems with 4.2.2. Are you sure you aren't on 4.2.1? Its crazy because I seen a lot of posts saying that they never updated but everything worked right on 4.2.2. I really wish someone could shed light on this issue.
Sent from my Nexus 4 using xda premium
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+1
Sent from my Nexus 4 using Tapatalk 2
Apparently the issue with CM 10.1 and the older radio is you lose autofocus in the CM camera (for example, might be more issues). Now, being in the UK, I have no need for the old radio as we don't have proper 4G here yet so I'm all 100% up-to-date and it works fine. Once 4G comes about I'll get a 'proper' 4G phone

ANY STOCK 4.2.2 Rom With LTE Band 4 Enabled?

The option for LTE in phone information was disabled in 4.2.2
Is there anyone working on a stock 4.2.2 rom with LTE Enabled?
Me and a few of my friends are looking for this for our phones
otherwise were forced to downgrading back to 4.2.1
Sorry I didnt notice where I was posting this, hopefully this is moved to >>> Q&A, Help & Troubleshooting
Also would flashing the radio from 4.2.1 enable it?
i think it is more of a radio thing. if you use either .27 or .33 radios then you can access the LTE. i did have a problem with paranoidandroid on tmobile where both of those radios would work and give me LTE but i lost audio in call. i am now running trailblazerz11 rom with .27 radio and i have audio in call and LTE.
fivefingerdeathpunch said:
i think it is more of a radio thing. if you use either .27 or .33 radios then you can access the LTE. i did have a problem with paranoidandroid on tmobile where both of those radios would work and give me LTE but i lost audio in call. i am now running trailblazerz11 rom with .27 radio and i have audio in call and LTE.
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Thanks sir, im trying to see if I can find a radio zip from JOP40D
No luck yet
dahprophit said:
Thanks sir, im trying to see if I can find a radio zip from JOP40D
No luck yet
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Look here. http://forum.xda-developers.com/showthread.php?t=2087227
Sent from my Nexus 4 using xda premium
Just flash older version of radio image on any ROM (stock works too I believe) via fastboot and you should be good to go
Sent from my ASUS Transformer Pad TF300T using Tapatalk HD

[Q] Using new "hybrid" (.27/84 or .33/84) radios on 4.2.2 works?

I'm not quite clear on whether you can use a newer radio on an older ROM. As far as I can tell, I should be able to, but I just want to make sure I'm not just misreading the various posts about radios. Most posts talk about downgrading to older radios but not many talk about upgrading to a newer one. I would like to try out LTE in my area and see how it goes but since the N4 is my daily driver, I don't want it out of commission too long because I tried something I shouldn't.
I'm not quite as familiar with flashing Radios. I'm quite comfortable flashing recoveries or new roms, but flashing radios is a new one for me. The exact question I have is - Can I flash one of the new "hybrid" radios from HERE (I'm not sure whether the .27/84 hybrid or .33/84 hybrid will work better for me so I plan to try both) and have it be alright on my current ROM? I'm currently running Paranoid Android 3.6, Android 4.2.2.
Also - is there a post that someone knows about that can give me some more detail about where Radios fit in with all the other "pieces" (ie Recovery, Kernel, Boot Loader, etc)? I'd like to learn more about it.
Thanks,
Zeustopher
yes, you can. ive been using the .27 hybrid radio since yesterday, and it works great on 4.2.2 and lte. and ive even seen better data speeds since. my lte topped off under 29mbps download before yesterday. after, i now top off just under 33mbps download
simms22 said:
yes, you can. ive been using the .27 hybrid radio since yesterday, and it works great on 4.2.2 and lte. and ive even seen better data speeds since. my lte topped off under 29mbps download before yesterday. after, i now top off just under 33mbps download
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Thanks for the quick reply!
Zeustopher

T-Mobile LTE

I am interested in enabling T-Mobile LTE on my N4. Does it work smoothly like any other LTE enabled phone? In my research, I've found that there are two different zip files to flash. Which one has worked best for people? It appears that enabling LTE is a simple flash of the zip file. Am I correct? Thanks.
This has been covered thousands of times. But before this thread gets deleted, let me help you out. LTE on tmobile or att works flawlessly.
http://forum.xda-developers.com/showthread.php?t=2358931
im using the 98-33 radio on tmobile and have had 0 problems. you can find it here
http://forum.xda-developers.com/showpost.php?p=48224173&postcount=882
just flash and forget it. it should work! good luck
Do I need to update the radios after every software update or can I just flash once and forget it?
Since this will get deleted anyways, I will ask the stupid question I have. Bone stock 4.4.2 soon to be rooted with TWRP. Can I flash with a stock ROM and still make a wifi hotspot? I see something about needing init.d support or something like that.
ILowry282 said:
Do I need to update the radios after every software update or can I just flash once and forget it?
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No need to flash again.
SKYLINESSUCK said:
Since this will get deleted anyways, I will ask the stupid question I have. Bone stock 4.4.2 soon to be rooted with TWRP. Can I flash with a stock ROM and still make a wifi hotspot? I see something about needing init.d support or something like that.
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Click to collapse
Yes
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I flashed the file. However the instructions state to change the network mode. I don't even see that option in the settings. I'm currently on 4.3
*#*#4636#*#* in dialer
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