yashsingh1/xdaforums huggingface dataset:
[Nexus 5 Android Development] Taimur Akmal:
No fix? I have to get it repaired? NAND rewrite?

EDIT: Maybe it's because of the new Android L basband. It changes compatibility with older basebands? I remember this happening on S3 when Samsung released MG4 Modem.
[Nexus 5 Android Development] GtrCraft:
You flashed the factory images multiple times, it didn't work so that means no fix. RMA it or use your warranty. You cant do anything yourself
[Nexus 5 Android Development] Taimur Akmal:
RMA isn't happening because I live in Pakistan. The phone's warranty isn't applicable here also because it was bought from America. So I am stuck with repairing it from some Mobile shop here. :-/
[Nexus 5 Android Development] GtrCraft:
I flashed all basebands since 4.4.1 (even the L preview) without an issue and Google is not Samsung. That's the only thing you can do then, next time buy it from a place where you can get warranty
[Nexus 5 Android Development] ChazzMatt:
If you bought from America, do you have the "North America" LG-D820 or the international LG-D821?
[Nexus 5 Android Development] Taimur Akmal:
I have D820.
[Nexus 5 Android Development] ChazzMatt:
OK. Just for 2G shouldn't make any difference. Even for HSPA , wouldn't make any difference. Only for LTE. Thought I was onto something, but not so.

http://www.phonearena.com/news/Differences-between-the-two-Nexus-5-models-D820-and-D821_id48985
[Nexus 5 Android Development] Taimur Akmal:
One thing I did try was, I got the "radiooptions" binary. Put in /system/bin and set the right permissions. Then I created a script which had the command "radiooptions 5" (Meaning radio on). It didn't work. Also tries using the file through terminal, didn't work. I had root access but when I executed the command it returned nothing.
[Nexus 5 Android Development] Lownita:
Why was EFS backup never a point on the N4? Also, TWRP never had an option to backup EFS. Is it special with N5? I only knew about this from my Samsung devices.
[Nexus 5 Android Development] 2 Be:
without Custom Recovery?

Is there any way to backup the EFS without a custom recovery? like with adb or something? haven't found a method yet, did I miss something?

Just because except for EFS Backup for the moment I don't think I'm needing a custom recovery so I'd prefer to just stick with stock.
[Nexus 5 Android Development] autoprime:
yes you can use dd commands thru adb shell to backup efs... tho it is best to backup your EFS while not booted into the OS.

adb shell

dd if=/dev/block/platform/msm_sdcc.1/by-name/modemst1 of=/sdcard/modemst1.img

dd if=/dev/block/platform/msm_sdcc.1/by-name/modemst2 of=/sdcard/modemst2.img
[Nexus 5 Android Development] 2 Be:
Great, thank you! Yeah I understand that. For the moment I just take these images hence I'm not planning to 'mess around' with the phone a lot but for my peace of mind want to have an EFS-backup in whatever way asap ;). Once I start flashing stuff etc the first step will be installing twrp anyway and the first step with it will be flashing your zip to definitely have a clean backup, thanks for the advise & all your work!!
[Nexus 5 Android Development] gee one:
I used adb in recovery:

adb pull /dev/block/mmcblk0p12 modemst1

adb pull /dev/block/mmcblk0p13 modemst2

seems OK
[Nexus 5 Android Development] Globespy:
I seem to live on the edge of the LTE here in the Denver area, and usually get one to two bars max. Still, speeds for one bar seem to be decent - almost 20 down and 11 up.

I need to drive closer to downtown and see what I can get with 3-4 bars. I'd think 30+

Interesting that someone mentioned the IMEI needed to perhaps be registered with TMO? Is there any truth to this?

https://www.dropbox.com/s/6dp3o2p7rts602g/2013-11-11 08.02.35.png

Is there any difference between the LGD820 and LGD821 Nov 6th Modems? They are exactly the same despite the name change, right?

The other modems listed in the OP I'm thinking are for international phones and not US TMO? I figured we need to stick to KRT16M versions since that's our ROM?
[Nexus 5 Android Development] Lownita:
Wouldn't that be also because they share the same factory image which only contains one modem file?
[Nexus 5 Android Development] quadomatic:
AT&T won't provision LTE to the phone without it, so it wouldn't surprise me if T-Mobile throttles LTE on phones where the IMEI isn't on file with the SIM card. I suppose we won't know until they call and have the IMEI changed (doing so shouldn't pose any problems as an end-user). Anyway, this isn't the problem in my case, as I have my IMEI on file with them (gave it to them when I activated). I think this is probably the issue for those who speed test and get high speeds at first that then drop down shortly after.

I really do think it's a signal and capacity issue for me. I tried T-Mobile in a different part of the city, and I think because the signal was better (4 bars on TMO vs 2 bars on AT&T), my speeds on T-Mobile were substantially faster (15 Mbps down vs 2 Mbps down). However, I then left the building I was in and walked a block down, and AT&T was much faster. The building I was in is a hotel with a huge lobby, so I wonder whether they were maybe just wired up with T-Mobile and AT&T wasn't.
[Nexus 5 Android Development] mendozaram:
I have the same question. o.O , i got troubles with EFS only on samsung devices, never on my current Nexus 4. Im waiting for my Nexus 5 (1 week ahead *.*) and i worry about this EFS thing on a Nexus device.
[Nexus 5 Android Development] RussianBear:
No such thing on T-Mobile.
[Nexus 5 Android Development] wideasleep1:
I still haven't called TMO to update my imei to troubleshoot my LTE speed loss...but interestingly last night I enabled ART and at least my download speed has returned..upload is still quite short as it used to be nearly synchronous:
[Nexus 5 Android Development] Globespy:
Good to know - I was going to waste 20 minutes calling them to find this out.
[Nexus 5 Android Development] RussianBear:
No problem, unless it's something new they're introducing. I didn't have to do this with the n4. My lte speed/signal qa is worse on n5, however. H+ flies, on the other hand.
[Nexus 5 Android Development] Globespy:
I have the opposite - I gave up on LTE on my N4 as it barely held one bar. N5 is usually 2 bars.

How to you switch to H+? Or does that just happen automatically when the phone loses LTE?

---------- Post added at 11:49 AM ---------- Previous post was at 11:38 AM ----------

I was considering changing to ART, but [at least with the Faux kernel] it's not recommended as it's buggy.

I still might try it out though. Not sure why it would speed up your connection though?
[Nexus 5 Android Development] wideasleep1:
No idea myself, could be coincidence but ART is so much faster it doesn't surprise me..it's like a new new phone! LOL
[Nexus 5 Android Development] RussianBear:
Settings-more-mobile networks-network mode
[Nexus 5 Android Development] kamaliqwan:
i dont really get this.. :)

i just need to know one thing..

Can this mods switch/enable the LTE capability of the US (D820) to get International D821) LTE bands?

cos i bought the US version but i live in SE Asia..tested and no-go.. :(
[Nexus 5 Android Development] autoprime:
no
[Nexus 5 Android Development] kamaliqwan:
is it possible..?
[Nexus 5 Android Development] Golomidov:
How do you know? Have you tested it? Or u r just guessing?
[Nexus 5 Android Development] GtrCraft:
Just send it to a repair shop
[Nexus 5 Android Development] Taimur Akmal:
If you would be in my shoes then you would know my situation. The only "repair" which will happen is by me rest, others, will mess up the device and ask me for a new motherboard or something which definitely isn't the problem. Anyways, I am gonna leave it right here. Already wasted much time of yours and others. Will use a secondary phone until this gets fixed.
[Nexus 5 Android Development] gialakias:
I have watched the progress of your whole situation here. Also I have used the developers preview and came back to 4.4.4 without radio problems. I will not try to show like the smart guy. Your problem is 100% faulty hardware and needs to be replaced with warranty or not. I understand you are in a difficult cituation but you have to accept it. The only way is to replace the motherboard. Sad but true.
[Nexus 5 Android Development] aeoveu:
He's right. Taimur, I know the situation you're in, but you'll have to send it in for repair.

A word of caution: people warn against going to Hafeez Center unless you know someone very well. Otherwise, try sending it to an LG service center, or ask Brightex or Homeshopping if they can help in the repair (and that you'll pay the price).
[Nexus 5 Android Development] Taimur Akmal:
Already sourced a person. He is based in Hafeez but is trusted. Plus, I am just gonna ask for his opinion. If it is a repair exceeding the budget I am willing to spend then I'll wait for the final release as still I have little doubts on the OS itself. And if the OS update doesn't fix it, I am left with no other option. Patience is not my key point but let's see how I keep up. :-/
[Nexus 5 Android Development] NaveenKD:
I have an US bought Nexus, rooted and running Mahdi ROM. Before rooting I upgraded to 4.4.4 stock so that I get latest modem. My current modem is M8974A-2.0.50.1.17.

Can someone suggest which is the good modem for India users? My service provider is Airtel.
[Nexus 5 Android Development] Ben36:
There is no best... If you're signal is good keep what you have
[Nexus 5 Android Development] Taimur Akmal:
Before I start, all of the Muslim readers here, Eid Mubarak everyone! :D

I just wanted to update everyone on my situation. If you go few pages back, you would see me getting into a issue where the radio was always off. Users on XDA helped out very much in their own right. :highfive: Sadly, nothing worked. Finally if you see the above posts you could see gialakias indicating it was "100%" hardware. This practically sent me into a state where I was devastated that I bought a faulty Nexus 5. Anyways, I still remained with my instinct and set out to fix this problem (without opening up the device). After many many many different trial and error movements, I have fixed my device myself. It was not a "100%" hardware issue rather it was 110% software fault. My device is Alhamdulilah working fine now! :D

Don't take any offence of my statements. After your post I was just devastated at a point that I just literally gave up and started planning out a budget for repairs. Just for future reference, don't be so quick on conclusions. I also Thank You (gialakias) if you hadn't pushed me I might have not fixed my phone! You, my bro, are a life saver! Much Thanks! :))

Now let's see if this fix holds up! Working fine for two days now! :D
[Nexus 5 Android Development] androcraze:
The information provided here came from you. There were multiple posts from multiple users, spread over multiple days. There was nothing that was "quick". As a forum, diagnosis was done as cheaply as possible (free).

I'm glad you got your phone working. I was bothered by the fact that nothing seemed to work, and speaking as an outsider looking in, it's frustrating not being able to help someone who's in need.

Can you give us a walkthrough on your recovery? It might help someone else in a similar situation.
[Nexus 5 Android Development] Taimur Akmal:
How irrelevant it may seem but what happened was the Root v2.01 fixed everything. After using my phone as an iPod for couple of days and installing main applications like Instagram and stuff, I flashed custom Recovery via fastboot (TWRP) and after completion booted straight into to recovery to flash the root package. My plan was to get the old basebands working. I forgot to transfer the radio zip with the root package so after rooting I just simply rebooted. VOILA! Phone was up and running as usual! I wasn't expecting this and at first it seemed too good to be true. Anyways, I rushed to my main phone, took the battery out and believe me, I have never opened and closed the Nexus 5 sim tray this fast. A quick reboot and it hasn't stopped since! :D

I guess the post installation script did something or my "radiooptions" method worked after rooting. P.S. This was done using KTU84P Android with .16 baseband! :D
[Nexus 5 Android Development] akash3656:
Just to be safe make a few efs backups now. You'll never know if you ever need them :)

Also make a copy of the efs backup onto your PC.
[Nexus 5 Android Development] gialakias:
Well I am glad that I "helped" you in my way...! I wish you will never have problems again.

Just to clear things up and with not being rude to you . When I write my opinion and my final answer in XDA ,I think it thrice! It can mislead someone if it is wrong and I don't want it in any way. I apologize for this in your situation BUT , based on the information that you gave, it seemed not a software problem. Of course you didn't tell us how you rolled back from developer preview image and that may had been the key! In my humble opinion and sorry for the capitals, ROOT ZIP HAS NOTHING TO DO WITH ANYTHING BUT ROOT! It does not fix the phone in anyway. Enjoy your nexus and leave all the problems back !
[Nexus 5 Android Development] Taimur Akmal:
I totally agree that Root ZIP has nothing to do with the Radio. I know it pretty well as Radio has become a part of my expertise now. xD But I had reverted to Android 4.4.2 and then upgraded to 4.4.3 and then 4.4.4 and then Android L but nothing worked. Switched between Android L and Stock 4.4.4 for the last few days. The Root ZIP somehow fixed it as it was the only thing changed while running the same Android firmware. The same firmware showed radio off but after rooting showed "Service State: Out Of Service" (Radio On). So what ever it might have been, I am glad it's sorted without me spending anything and also without risking the internals! :D
[Nexus 5 Android Development] mikebzh44:
Is it normal that KTU84P radio image is bigger (64 Mb) than radio image found in KTU84P archive downloaded from Google (44 Mb) :

https://developers.google.com/android/nexus/images#hammerhead

As I'm facing a radio issue :

http://xdaforums.com/showpost.php?p=54498073&postcount=40

Do you think that I can flash Android L radio IMG on Android 4.4.4 ?

Thanks.
[Nexus 5 Android Development] GtrCraft:
Yes, you probably bought a damaged nexus 5 and yes
[Nexus 5 Android Development] mikebzh44:
And yes what ?? I can flash Android L radio image on Android 4.4.4 ?

Thanks.
[Nexus 5 Android Development] GtrCraft:
Yee you can
[Nexus 5 Android Development] jaferiqbal:
To dump your modem to the root of your internal sdcard:

su

dd if=/dev/block/platform/msm_sdcc.1/by-name/modem of=/sdcard/modem.img

what does this mean ? do i need to do it before flashing modem through zip via twrp recovery ?

And i backed up my efs using twrp ,can i also back it up with your backup zip as to create flashable zip of backup ?
[Nexus 5 Android Development] GtrCraft:
The command is a alternative to flashing in recovery, just flash the modem zip in recovery. There is a zip in OP to create a EFS restore flashable zip
[Nexus 5 Android Development] HEROEdelREVES:
Do i need to make wipes before or after flashing the radios?

If the answer is Yes, then what wipes are needed?

Is it ok flashing the radios on customs roms or do i need to flash it in a stock firmware?

Thanks!
[Nexus 5 Android Development] mj084:
No wipes needed
[Nexus 5 Android Development] ChazzMatt:
KTU84Q radio?

Although a couple of people have posted download links, just curious why the new KitKat KTU84Q radio is not posted in the op yet, and thread title updated? Been a couple of weeks since release and it works everywhere. Even people in the USA have said it gives them a better signal... My wife and I have been using it on our two Nexus 5 phones just fine (Atlanta, Georgia, USA).

The op was last updated June 27, and KitKat 4.4.4 r2 (KTU84Q) with the new radio was released mid-July. I'm not criticizing, just asking.

_______

EDIT:

Here's a new download link, to keep it alive:

http://www.mediafire.com/download/mpewwa8f071qqwi/NEXUS5_KTU84Q_RADIO.zip
[Nexus 5 Android Development] HEROEdelREVES:
Everything went well. Thank you guys!
[Nexus 5 Android Development] CataHd:
Anny one here from Romania that can tell me what is the best radio for our country?

And any other settings that need to be done for Vodafone?
[Nexus 5 Android Development] GtrCraft:
Why don't try some yourself? Radio depends on exact location not country
[Nexus 5 Android Development] CataHd:
Until now non of them had good call quality :(

When i'm in a building others always complain that they don't here me.
[Nexus 5 Android Development] GtrCraft:
Signal in a building is mostly 2g so that explains it. The only thing you can do is go outside or switch carrier
[Nexus 5 Android Development] jcsww:
Absolutely no comainfs with the Android L radio here in Blacksburg VA on T-Mobile and AT&T. I was up in New River Gorge, West Virginia today with no issues on AT&T.
[Nexus 5 Android Development] Telomir:
Overall, are the impressions that the 4.4.4 r2 radio is superior to the Android L radio?
[Nexus 5 Android Development] Juzman:
KTU84Q works well for me. I am on Telstra (Australia). Not too sure if there was much of a difference between L and this one though.
[Nexus 5 Android Development] Dougshell:
Can someone repost the r2 zip, the other links no longer work
[Nexus 5 Android Development] ChazzMatt:
The first link still works (mediafire)

http://xdaforums.com/showpost.php?p=54547851&postcount=1202

But it should be posted in the op. Not sure why it's not been updated yet...
[Nexus 5 Android Development] SketchyStunts:
Too bad, no matter which radio I get data drops like crazy at home. I'm with Sprint so I'm not surprised.
[Nexus 5 Android Development] Telomir:
Leave Sprint and join us at T-Mobile, friend.
[Nexus 5 Android Development] ChazzMatt:
Until Sprint buys T-Mobile. :)

Sprint agrees to pay about $32 billion to buy T-Mobile

http://www.reuters.com/article/2014/06/05/us-tmobil-sprint-corp-idUSKBN0EF2DG20140605
[Nexus 5 Android Development] galaxys:
T-Mobile doesn't want anything to do with Sprint! ;)
[Nexus 5 Android Development] Dougshell:
What makes you think that. Added spectrum and customer base would be great
[Nexus 5 Android Development] SketchyStunts:
I'm so upset with Sprint's service, I could kick a baby.
[Nexus 5 Android Development] CRIME INC.:
sent from my Paranoid neXus 5
[Nexus 5 Android Development] fairyshacker:
will it work with MIUI (4.4.2) ?
[Nexus 5 Android Development] GtrCraft:
Yes
[Nexus 5 Android Development] vin4yak:
Ahh well.. The new Android L build didn't come with a new radio this time! It's still 2.0.50.2.08!

PS: Did anyone flash the new build? :p
[Nexus 5 Android Development] jcsww:
I haven't seen a new build as ofbyet but I have been out of town for about two weeks. Do you have a link to the new build or a thread with a flashable version of the new build?
[Nexus 5 Android Development] HiGhDRo3o5:
Thats a no go. Sprint bailed out of the merger
[Nexus 5 Android Development] jcsww:
Yep, and a shame too. The FCC really protects AT&T and Verizon by making it too difficult for other companies to actually try to compete on a national level.
[Nexus 5 Android Development] ChazzMatt:
Good news for consumers. I'm glad the bid failed. T-Mobile is shaking up the industry. Right now they have more prepaid users than Sprint, and at current growth rate in a year will have more post paid customers.

If Sprint bought them, T-Mobile would be brought down to Sprint's mediocre level.
[Nexus 5 Android Development] vin4yak:
It was released yesterday: https://developers.google.com/fit/preview
[Nexus 5 Android Development] jcsww:
Awesome! I won't be able to flash that until the middle of next week unless I find a flashable version. Thanks for posting the image link!
[Nexus 5 Android Development] ChazzMatt:
Flashable here. Newest on top.

http://xdaforums.com/showthread.php?p=53700335
[Nexus 5 Android Development] Miqueas111:
Hi all, I've looking but I can not find how to backup EFS via CWM.

Any ideas?
[Nexus 5 Android Development] shhbz:
hi vin4yak can you share which modem works good for you as after updating latest modem I am stuck with low signal and don't want to get into downloading all and flashing one by one so any modem working best here in India
[Nexus 5 Android Development] vin4yak:
By latest you mean the android L one or kitkat one?

Using Airtel and I'm on the KTU84Q radio and everything's peachy over here. No data connectivity or signal issues.

TNH, these modems act differently on each and every device depending on the location and other variables. So, you need to flash each modem, try it for a day or two and settle on the one which works best for you. KTU84Q works perfectly over here but so did, KTU84P..lol.. Didn't find any difference.

---------- Post added at 12:34 PM ---------- Previous post was at 12:33 PM ----------

No idea about official cwm but since you like it, I would advise you to use Philz Touch which is an advanced version of cwm and I know for sure that efs partition can be backed up using it.
[Nexus 5 Android Development] danmaman:
hey

i also flashed the KTU84Q Radio......it works perfect with O2

better signal /stable connectivity and so on:good::good::good::good:

thanx and cheers
[Nexus 5 Android Development] starche_old:
Where you've got it? Not mentioned in OP
[Nexus 5 Android Development] HiGhDRo3o5:
Thats why im glad it didnt go thru. My girl had sprint for maybe about 2 months n coverage was horrible speeds would b great one second n slow the next second. I believe it wouldve held tmobile back
[Nexus 5 Android Development] ChazzMatt:
No, but it should be. :) Op has not been updated in a while.

KTU84Q radio was released in mid-July with 4.4.4 r2.

Been posted a couple of times. First link (mediafire) in this post still works.

http://xdaforums.com/showpost.php?p=54547851&postcount=1202
[Nexus 5 Android Development] starche_old:
Thanks a lot. Gonna try it now
[Nexus 5 Android Development] FernandoRocker:
OK.

My Nexus 5 has an unlocked bootloader. It is also rooted. I also have Xposed installed. All the drivers on my PC are installed.

But I can't find instructions about how to install GPU drivers and Radio/Modems. How do I do it? I already have the ZIP files for both the modem/radio and GPU.
[Nexus 5 Android Development] ChazzMatt:
For phone radio | modem | baseband (all words for the same thing), reboot into recovery and flash the zip file. Reboot. Done.
[Nexus 5 Android Development] FernandoRocker:
But how do I do it? I know how to access recovery.

So, I just open a CMD window where the ZIP are on my computer and type what? I renamed the files as modem.zip and radio.zip
[Nexus 5 Android Development] jd1639:
You do it from a custom recovery on your phone. Not your pc.
[Nexus 5 Android Development] FernandoRocker:
I think I got it. I typed fastboot flash modem modem.zip and aparently it worked.

How do I update the GPU driver?
[Nexus 5 Android Development] jd1639:
Nah, that's not going to work unless you had a .img file
[Nexus 5 Android Development] FernandoRocker:
I did that and the phone restarted and the phone didn't detect any signal. It was unusable.

I unziped the modem.zip file and the IMG file was there so I restarted the phone in recovery and I typed fastboot flash modem modem.img on the PC and it now worked.

I was scared for a few minutes.
[Nexus 5 Android Development] Wakamatsu:
I'm surprised it let you fastboot flash a zip. I thought that returned an invalid file type.