Radio problems - Hero CDMA Android Development

I have been experiencing some pretty severe radio issues. I have been missing calls without the phone ringing and people have to call me multiple times to get through even when I have great signal. My radio switches to 1x for long periods of time and loses all signal randomly (or it goes back and forth between EvDo and and 1x rapidly). This has just started happening over the last week or two and I live in a large city that normally has really great sprint 3g coverage. Today, I got an error that said something about "insufficient radio resources" so I figure that could be related to the problem. I am running Fresh 2.0d and using the 2.42.00.03.10 radio. I think the problems may have started after I tried to update my PRL, but it seemed to update fine and is currently 60664. Has anyone else had this kind of problem and/or know any fixes? Thanks.

This has nothing to do with "Hero CDMA Android Development". I would reload your backup.

.........................

This used to be the area to ask for help when you have problems on the phone running a modded rom/radio. If that has changed I didn't realize it. I have tried going to backups but the problem persists. If you don't want to offer help then don't, but you could be less of a ****.
If this is the wrong forum could a mod plz delete the thread and I'm going to repost in the General forums (although the general forum doesn't seem like the place for Rom/radio problem either)

Maybe flash another radio and see how that works

http://forum.xda-developers.com/showthread.php?t=659762

Related

[SPOKE TOOO SOON] Sick and tired about Radio issues :( :(

Hi!
I'm soooooo damn tired facing thousands of radio issues day in and day out
I'm using radio rom 1.15 and i find it extremely buggy . I looked through the forums and noone seems to be complaining, so i wonder if i'm the jinx here :/
The problems i face are -
1. All of a sudden i cant make calls. It throws a notification popup saying "The call has failed". Thanks! The only way out....restarting the radio. And yea, thats a nightmare too....going to comm manager, switching of phone, and switching it back on....the damn thing doesnt work right AT ALL! I switch it off....and push the button again to turn it back on, nothing happens....i push it again and again and again a million times....it gets too painful. So what do i do instead? soft reset
2. My gprs connectivity goes for a toss every now and then. again, the same ordeal....it never connects until i soft reset or restart the radio.
3. The worst part, when the phone module has taken a crap....i.e....reached a state where no calls go thru (refer problem 1.), i cant even receive incoming calls! The person calling me gets a ringing tone, but my phone's a dead corpse here. All messages sent to me are "apparently delivered" but nothing shows up here....
Is it just me?
Is there a better radio rom?
I restart my phone roughly 5 times a day, once in the morning when i wake up WITHOUT FAIL....and all this is getting to me really bad :-/
San
Well i see you are from Banglore,im from Hyderabad,i have been using the 1.15 radio for ome time now with the pdav latest rom(.09) sometimes my phone acts a little strangely like when receiving a call sometimes the incoming call icon stays there for about 10sec before the screen comes on the call status one.I switched over to radio 1.09 which i found the most stable on my O2 exec,but in my experience radio roms also behave differently depending on location,and also the os system try to use 1.09 as i found it the best for me in India.
Radio versions works differently depending on your location.
Try other radio versions.
Or better yet, just use the radio version that came with your device.
Do not upgrade your radio unless your having problems with it.
Like our friend here at xda-developers said, "If it's not broken, don't fix it."
arvind09 said:
Well i see you are from Banglore,im from Hyderabad,i have been using the 1.15 radio for ome time now with the pdav latest rom(.09) sometimes my phone acts a little strangely like when receiving a call sometimes the incoming call icon stays there for about 10sec before the screen comes on the call status one.I switched over to radio 1.09 which i found the most stable on my O2 exec,but in my experience radio roms also behave differently depending on location,and also the os system try to use 1.09 as i found it the best for me in India.
Click to expand...
Click to collapse
well, i've reverted back to 1.09, lets see if its any better!
i feel sooo sick sometimes, i think of buying another normal phone! But hell, i love my universal so much that i cant do it....i'd rather put up with all the $hit it throws at me... !
cheers, and thanks for ur help everyone! i'll post back and let u knw if its still coughing up!
San
Radio Rom?
If you are still having issues, also post back your OS Rom that you are running, this may also have some bearing on the underlying issues.
Cheers,
Beast
Using radio 1.15:
With Ivan's base it causes my device to experience problems with the phone and GPRS\3G
With Midget's base everything seems to work fine
(btw I have an O2 Exec - Just suggesting that it may be the differences in hardware...)
dreamtheater39:
Same problem here.... Since I (sim) unlocked my MDA-Pro I'm experiencing EXACTLY the same problems as you have.
I posted several items on this forum, no success till now.
I'm thinking of reassembeling my old MDA-Pro, which is sim locked but screen broken. replacing the screen with my new (sim) unlocked MDA-Pro and see if the radio problem is still there. Just to exclude if the problem can be (sim) unlocking the phone...
But it is VERY anoying, I must agree...
regards
arjan
Also,.. I've tried almoast every Radio rom!! still no success.. even te Original T-Mobile rom (ROm and radio) give me problems...
So can it be the Sim unlocking (V1 by Buzzdev)?
A.
adonker said:
Also,.. I've tried almoast every Radio rom!! still no success.. even te Original T-Mobile rom (ROm and radio) give me problems...
So can it be the Sim unlocking (V1 by Buzzdev)?
A.
Click to expand...
Click to collapse
Hi,
I doubt it is the SIm unlock.
I used Buzz's too, originally many Rom flashes past that.
I have Exec with Radio 15 and customised Rom with Midgets as base and no issues at all.
I would advise finding out what the latest Radio Ver offered by Manufac for your model and try that one for a bit.
Perhaps we should start a poll as to what each user is using and record Radio and OS Rom info with a comments section for any issues noted. It would at least help stablise WM6 builds.
Regards,
Beast
That damn radio issue!
I think it is time to stop discussing whether there is an issue and start looking for a fix!
First off: basically all HTC-phones have had a similar probblem, going back to the MDA 2. The key problem has been, that the data connection does not properly switch between mobile cells when you are on the move.
My device loses data connection every time I go into the parking garage, where there is no reception. Also, when I'm sitting in an area with very poor UMTS-coverage, the MDA-PRO loses connection after a few successful switches to GPRS. BTW: You can see you have a problem when Active Sync on the MDA says "Waiting for Network".
This wasn't such an issue as long as we didn't have the data connection constantly on. But, latest with the MS-Pushmail this has changed - the data connection is always on.
HTC and the operators have seemingly been working on this issue for quite some time. The only ROM on the MDA-PRO that was quite stable on this was actually the last T-Mobile WM-5 ROM.
With WM6 we are back to the issue. I no longer believe it is a problem with the Radio-ROM. Most likely is that there are differences in the driver dll. THis might explain why Midget's ROM seems to be better than IVAN's.
So, guys start troubleshooting!
Yes dreamtheater, are you running WM6? It is WM6 that seems to display these problems, regardless of the Radio. If I roll back to the official T-Mobile Rom (WM5) or Orange Rom (WM5) my problems disappear
HA!
Finally some usefull information. But very strange, buying a very expensive devise, but not being able to make a proper phonecall with it....
a.
YIPPEEEEEEEEEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I installed Radio 1.09 and so far sooooooooooo good!!!! None of the issues i mentioned, it works like a charm!!!
The only noticable issue i've found a couple times is, the gprs automatically disconnects once in a while, but i can ask it to reconnect and it does so without a fuss! Wowwwweeee!!!!
A BIGGG thanks to Arvind09 for this!!!!
So guys, i guess you got to try all radio roms and find which one works best for you, no other go as i see it
Cheers!
San
OH CRAP!!!!!!!!! I SPOKE TOOOOO SOON
Woke up early morning and the damn things crapped again :-/
The sobbing continues
If you tried different Radio Version and still does not work, it is time you change a service provider, provided you are sure that your hardware never had problems before.
Bangalore is a big city, coverage should be good, could it be the part of area you are in has bad coverage, try asking you friends about service provider other than your current one in that particular area.
If changing provider still does not work, make a complaint to the providers, it nothing improves, its time you need to move somewhere else.
I have the same issue when I keep the Radio Band in Auto mode (GSM/3G) I change my phone to GSM and it is better.
Ye, I did the same too. only switch manually to 3G when needed. I almost forgot about this point.
Furthermore, GSM mode makes the battery last more days than 3G mode.
encountered the same probs, 4 me radio 1.12 is the most stable one (I believe it's an exotic/not commonly used version)
I have been struggeling with this since the first WM6 Pre-release ROM came out on this forum. Tried all the radio ROMs available, without succes. As said, the only ROM that does not suffer from this, is the latest WM5 ROM.
dreamtheater39 said:
OH CRAP!!!!!!!!! I SPOKE TOOOOO SOON
Woke up early morning and the damn things crapped again :-/
The sobbing continues
Click to expand...
Click to collapse
Ok could you tell me which provider are subscribed to? I use Airtel and hutch on both my pocket pc(universal and orbit)Ive noticed that airtel tends to loose its signal whereas hutch has never given me a problem.for this reason i use hutch on the Uni,though i cannot say that im very happy with their service,they are any day much better tha Airtel and Idea both.Also try to change the rom and see if the problem still persists.

[Q] Better Reception?

I have I think a kind of strange problem. I've had my V or a few months now and all of a sudden it doesn't get move than 2 bars on the reception scale where as before it used to get 3-5 sitting in my rec room. Don't know what changed other than adding and removing some apps that I wanted to try out. Don't know which are still there that weren't before but wouldn't think that apps would cause the reception to be poorer.
Thought about an antenna booster/adapter/extension but thought I'd ask others first.
Also, anyone added any antennas to theirs? I noticed there isn't an external connection for one and everything I've read so far talks about add one with the external connection.
Any help would be appreciated.
Try updating your PRL
http://forum.xda-developers.com/showthread.php?t=991668
My optimus had problems like that too, but after upgrading my by rom, baseband stuff is quite better.
Which one are you using ?
bloodclot said:
Try updating your PRL
http://forum.xda-developers.com/showthread.php?t=991668
Click to expand...
Click to collapse
Agreed, Updating the PRL is highly recommended.
Sent from my VM670
Have you really noticed a difference by upgrading your PRL?
Don't know what PRL is
In reading all the responses I was afraid since I don't know what the PRL is. Several places warned against changing things in the PRL if you don't know what the PRL is.
I have rooted my phone and have changed the rom a couple times including bricking it a couple times but had a backup so I recovered but don't know what the PRL is so didn't try that avenue.
Jim
I flashed my PRL today and could only get data to work. SMS and Phone stopped working so I flashed back to my original PRL. I think it was trying to connect to the tower closests to where I was, but told me to call customer service If I wanted to use it.
ROM issue on signal reception
JimReid said:
I have I think a kind of strange problem. I've had my V or a few months now and all of a sudden it doesn't get move than 2 bars on the reception scale where as before it used to get 3-5 sitting in my rec room. Don't know what changed other than adding and removing some apps that I wanted to try out. Don't know which are still there that weren't before but wouldn't think that apps would cause the reception to be poorer.
Thought about an antenna booster/adapter/extension but thought I'd ask others first.
Also, anyone added any antennas to theirs? I noticed there isn't an external connection for one and everything I've read so far talks about add one with the external connection.
Any help would be appreciated.
Click to expand...
Click to collapse
Recently I upgrade my ROM to cyagenmod 10.1. It shows the signal is very poor, but I did not face the issues on call receiving/making. This is the known issue ( fail to refresh the signal strength in status).
Also faced some other issues ( phone hang while call is coming in 'phone locked' condition'.
Finally changed the OS to Android 4.2.1 & PAC-MAN 19.9.0. Except the battery drain issue, no more issues now.

July 17th/18th MR 2.5 issue BAMF 1.8.6

So I am sitting and attempting to watch some videos at work while I tether from my phone to my galaxy tab. Next thing I know my typically solid speedy connection starts to flicker. Downloads are next to impossible and then websites stop loading. I then thought perhaps its just the app and I then try it on the phone and its dead too. The 4G was full strength but there was no data feed. The only "fix" was killing the radio and starting it back up again. Note I even reflashed the radio just incase with the same results and I havent done any new rom or radio flashing since 1.8.6's release.
I finally decided to step back to MR2 which seems to be working perfectly fine. the speeds are all back to normal with no random outtages. Anyone else have a MR2.5 issue last night/this morning?
Good luck getting a response. This happens to me all the time on BAMF (and a few others) and no one seems to know why. The only ROM so far this hasn't happened to me on is Gingeritis 3D. Everything seems to be normal on the phone (ie 3 or 4G signal is strong) but there is no data connection. So far the only link I can find is it seems to happen more when I'm on WiFi but it does happen when I'm not. I started noticing the problem when I was at work and getting e-mails on my PC but not my phone. Sometimes disabling the radio works or it gets stuck on the re-enable & a reboot is required. I randomly Google a solution to the issue but all I can find is more people with the same issue all not getting an answer. All of this happens with no rhyme or reason - so good luck getting an answer. Hopefully you'll get better results than I did.
Where's the ROM? Since you know, you posted in the development section...

Data blinks in and out on AOSP only since getting new SIM

5/19/2013 Update: The bug might be dead! Like for real this time. See this post, post number 14 in this thread with an explanation of what to do.
10/25/2012 Update: TRY THE LATEST BUILDS OF BRUCE'S CM10 STARTING WITH THE 10/25 VERSION!
Bruce has made a change that helps differentiate between the regular data stream and the MMS data stream in an attempt to see if that was what was causing the instability issue. This is only on Bruce's CM10 Kang as of 10/25. If you are only another CM ROM, flash Bruce's (even if just for a minute or two) and see if the data bug goes away. Please report back if it did!
If this does cure it, I'm sure Bruce will share the sollution to all other devs and your favorite other AOSP ROm will have the cure shortly.
Updated 10/24/2012
This is a detailed description of the 6 million or so things that various people have attempted to do in order to rectify the blinking data connection problem plaguing T Mobile USA users on AOSP ROMs for the Sensation. This issue is non existant in Sense based ROMs.
The problem has something to do with how the Sensation authenticates itself with the T Mobile Data Network. It's not based on the cell towers as voice calling is unaffected. The theory is that the AOSP framework lacks the proper authentication certificates for part of the data network and when the phone is routed to that part of the network, it gets kicked off teh network, then continually retries to connect.
This was and issue on the Sense Gingerbread Stock ROM in 2011 but T Mobile and HTC patched it. All Sense ROMs are free from this bug. But no one knows what exactly the patch was so AOSP ROM's have not been able to be cured yet.
Short version....
Problem started for me on Bruce's CM10 rom. But it's reported on all CM10 variants and most CM9 ROM's as well.
One day I noticed that data wasn't connecting well. It would blink on and off. Sometimes it would stay on, but if I turn it off then right back on, it might go back to blinking.
The problem exists on all AOSP roms (AOKP, CM9, all versions of CM10) even after full wipes and restores of known working nandroids.
Cell signal for voice calls works perfectly. No problems whatsoever. So the phone is connecting to T Mobile. It just won't get data.
Long version....
To fix this I've tried the following...and how each does or doesn't work.
Switch to 2G networks only and switch back. Problem remains, and still blinks E on the EDGE networks rather than being solid on them.
Updated the radio. Problem remains.
Updated the entire firmware package. Problem remains.
Superwipe and flashed Sense, verify data works well. Then regular wipe and flash a fresh install of CM10. Problem remains.
Flashed clean version of CM10 and fixed permissions. Problem remains.
Made calls from the phone. Some people have reported that this helps temporarily.
Sent myself a text message. Some people have reported that this helps temporaliy.
Turn on airplane mode for a minute then go back to normal. Some people have reported that this helps temporarily.
It's not related to Wifi at all because I've created the error on fresh installs of CM10 before ever turning Wifi on.
Formatted SD card. Problem remains (and just to be sure I got the error while the blank formatted SD was removed from the device)
Checked the APN's 100 times. They are correct.
Spent an hour on the phone with T Mobile. Their tech said everything looked good on their end. He cleared the SIM and reactivated it. Problem remained.
Other people have gotten new SIM cards and found that while they helped right away, the problem eventually came back.
The only things that have shown any help to multiple users are in bold above. There are various reports of 100 other 'fixes' that people swear fixed the problem for them. But all of them involved the phone disconnecting from the network and reconnecting. That appears to be the key to get data working again temporarily. Making calls and sending yourself text messages also forces authentication on the T Mobile network without breaking the original connection.
If you want more details or want to review the logs to see if you can figure it out, logcats of the problem are located in this post! Click here for logcatty goodness!
Here is the real kicker....
Everyone once in a while...it connects. And once it's connected it'll stay connected until I turn the connection off or reboot the phone. Then it'll go back to blinking in and out when I try to turn it back on.
Just another note, the data is finicky on my old LG G2x also on TMobile with AOSP based ROMs, talk works, but cell data won't come back after going into airplane mode and out, until a reboot. It works fine on official TMobile ROMs. I suspect there may be some proprietary cell data negotiation between handset and Tmobile towers that AOSP code doesn't have.
Whyzor said:
Just another note, the data is finicky on my old LG G2x also on TMobile with AOSP based ROMs, talk works, but cell data won't come back after going into airplane mode and out, until a reboot. It works fine on official TMobile ROMs. I suspect there may be some proprietary cell data negotiation between handset and Tmobile towers that AOSP code doesn't have.
Click to expand...
Click to collapse
Okay here's an update on this for anyone who finds this thread through a search or Google or something....I'll try to describe this using the simplest terms possible so those of us who aren't cell tower engineers can understand it. (And I assume that's most of us, including me!)
The latest running theory is that the issue occurs due to the way the phone is handed off from 1 tower to another.
As you move your phone is handed off from one tower to the next. You get unregistered with tower 1 and reregistered with tower 2. That's normal.
However if you are within range of 2 towers you can't be on both. You have to be registered with 1, and that's supposed to be the stronger one. But AOSP ROMs lack a T Mobile certificate that authenticates which tower is supposed to have priority. So when the data is blinking you are getting bounced between 2 towers because the phone is trying to register with both.
The latest version of Bruce's CM10 ROM (Dated 10/10/12 and with TMOUS DATA in the rom name on the download page) supposedly includes patches that fix how this authentication works. And I only say 'supposedly' because the patches have only been up for about 12 hours so the jury is still out on how well it works. Personally I've been on it all day today and haven't had the data issue yet. But it can be days in between seeing it. So it'll take a while to know for sure that it's fixed.
If this turns out not to be the exact cause of the problem, it's something similar and a final sollution should be found soon.
Update: This have never been substantiated, and several users with the bug have reported knowing for a fact that they experience the problem when in range of only 1 tower.
Hi,
I have noticed with JB ROMS that you get 7 or 8 APN's,most of which do not apply to me.
Have you tried (making a note of your one first) and deleting all the APN's
Reboot,and just install yours.
malybru said:
Hi,
I have noticed with JB ROMS that you get 7 or 8 APN's,most of which do not apply to me.
Have you tried (making a note of your one first) and deleting all the APN's
Reboot,and just install yours.
Click to expand...
Click to collapse
That's one of the 1000 things that's been tried, to no effect. If he APN is set to the correct one the extra APN's are ignored.
Nothing that you do within the phone can cure the problem. At most, forcing the phone to re-register with the tower is the only thing that can help, and that will be temporary if it works at all.
The best bet now is to hope that Bruce fixed it with his latest additions to CM10 now that we understand what the actual problem is (or at least that we think we do)
Update....
T Mobile data is still broken. It has not been fixed yet. The latest theory may just be one more in a long line of theories that turned out to be wrong.
There are days when I really hate this phone.
Thanks for the update. I've been monitoring that thread occasionally, but it has way too much traffic for me to keep up. I was close to switching to it, but I need good battery life and reliable cell service over any smoothness benefits of JB, which is why I'm sticking with HyperNonSense ICS for now.
been experiencing this issue for a couple months myself. currently stuck in a no data bout as we speak. i'm wondering if it has anything to do with the amount of data we've used. i noticed this last bout started right around the time i passed 5gb. should also be noted i'm on the unlimited 4g plan and tether like crazy. i guess i'll know if the problem persists until my next billing cycle. for now i'm stuck with a sense nandroid and crack flashing aosp daily to see if it's fixed.
cpittman said:
been experiencing this issue for a couple months myself. currently stuck in a no data bout as we speak. i'm wondering if it has anything to do with the amount of data we've used. i noticed this last bout started right around the time i passed 5gb. should also be noted i'm on the unlimited 4g plan and tether like crazy. i guess i'll know if the problem persists until my next billing cycle. for now i'm stuck with a sense nandroid and crack flashing aosp daily to see if it's fixed.
Click to expand...
Click to collapse
I have tried the SIM swap fix. And that has apparently worked. I've been using in good for about the last 6ish hours without any problems. :good:
So i'd give that a shot if your willing.
I've been using CM10 KANG since it was available for HTC sensation. Never had the data blink issue. Recently, my phone started to have this issue. Data would simply not connect with CM10 or CM10.1 with any radio/firmware combination. I also noticed that when I travel to work, i get data say after 10 miles away from my home and it continues to work after coming back home. However, after restarting the phone, i hit the blink problem again. Wondering if its because of some cell tower maintenance/upgrade near my area.
So I was on bruce's ROM until a week ago and this never happened while on his ROM. Just upgraded to albinoman's ROM and this started happening. I have to send myself a MMS picture to get it back again. Hope this helps
Fix
Ive had this problem on and the only thing that seems to help is flashing a new ROM but then a few weeks later it returns... I realized that this only happens when I try to send an MMS message or attempt to receive them. I don't know how to stop receiving an MMS but just delete the picture message you're trying to send and your data should stop blinking on and off. Can't guarantee it'll work for you but it worked for me! GL!!
It appears as though this stupid annoying silly obnoxious bug has finally been squished, sprayed with 3 cans of Raid, and its' mangled corpse then burned to a crisp...I hope.
3 weeks ago W1ldFl0wer brought this fix to Albinoman's attention...
In the build.prop under phone>system was the following line....
ro.telephony.ril.v3=datacallapn,signalstrength
This line appeared like this on all AOSP roms for the sensation.
The fix was to add skipbrokendatacall to the line so it looked like this....
ro.telephony.ril.v3=datacallapn,signalstrength,skipbrokendatacall
Save the file, reboot, and data should spine right up and work fine. So far the peopl ewho have run into the data bug have implimented this change and BOOM, data fixed.
So if you use any AOSP ROM 4.0, 4.1, or 4.2 other than Albino's CM10.1 Kang just add skipbrokendatacall to that line and see if it fixes it. Only do this if you on in the US on T Mobile's network. If you are in parts of Europre making this change will screw up your data.
If you are using Albinoman's CM10.1 Kang ROM, he has already included this line in the build.prop for you. You just have to activate it. About 30 lines into the build.prop is the new line that reads...
#ro.telephony.ril.v3=datacallapn,signalstrength,skipbrokendatacall
Just delete the # in front of that line. (The # makes the ROM skip the line when loading everything, but lets it stay in the file so you can read it. Deleting the # means that the phone will read that line when it reboots.) Then go up to the line that says the same thing without skipbrokendatacall and delete that line entirely. Save the file and reboot. If you don't delete the original line without skipbrokendatacall, your phone will go haywire, data might not work at all, and you might inadvertantly trigger Z Day. So if you're not ready to fight in the zombie apocolypse, only leave one of those lines in the build.prop.
Hope this cures it for everyone! Again, don't make this change if you live outside the USA or are not on T Mobile's network! Doing so on other networks in other parts of the world could make things worse for your phone!
Here is the link to the post where W1ldFl0wer informed Albinoman of this fix.
http://forum.xda-developers.com/showpost.php?p=40755845&postcount=9003
I don't think W1ldFl0wer invented the fix, but he certainly is the one who made it public to Sensation users so go to that post and thank him/her bcause I might finally be able to stop obsessing over this stupid bug because of this user!!! :good:

[Q]How to Fix Dropped Calls On OnePlus One?

Calls drop often. Usually within the first minute, and then every time when Im calling back after 10sec. The phone itself does not lose signal. Strange thing is, if I'm getting phone call after first/second drop, phone continues connection without problems... But Only when Im receiving a phone call not when Im trying to re-call someone.
- I tried replacing my sim and the issue persists. No problems with other phones using this Sim (even in the same locations).
These are pretty annoying issues. Anybody else experiencing them? Is there a different radio I can try for the phone? Is there any log I can access showing a reason for the call drop, or any trouble shooting I can do? This seems to be independent of WCDMA Only/Preferred/GSM/WCDMA (Auto) settings. Or if, how to change these settings?
Note: This has nothing to do with the network. I've been with the same company (Orange Europe) for about 2.5 years, and have never had this happen before. This has been consistent since I got my OnePlus (about 1 week ago)
That's true. I'm experiencing this as well for quite some time now. At first I joked and said: Hey, the NSA joined our conversation.....again. But after some time it really annoys me. This has nothing to do with the ROM or kernel as I have tried out various combinations. What I found out is that it got better after I returned to stock CM 11s with stock kernel. But it's not gone completly.
Honestly I neither know how to fix it nor what is causing the problem. Try to reflash the CM11S 25R firmware and see if it gets better. I think something is wrong with the modem software since CM11S 22R,25R and CM11 builds are using the same modem software. Maybe the announced update for the end of this month or early next month will fix this. I really hope so because a phone which is not able to hold a call, can't be considered as a real phone.
Oh im pitty You, If You'll get something just please let me know. Any advices or help will be appreciated. Maybe waiting for new CM relase will solve the problem, I do rly like this OS even with so many bugs... there is always an option. Move to stock 4.4 published by OP on official website.
Anyone else facing the same issue? Was there ever a fix for this issue? I'm on 38R and still encountering this issue
Same here.
See this thread for answers and work around. No solution as of yet.
http://forum.xda-developers.com/oneplus-one/help/dropped-calls-weak-lte-signal-t2916659

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