GSM not reconnected after signal lost & super fast battery drain - Defy Q&A, Help & Troubleshooting

Ever since switching to CM7 (7.1 and 7.2 RC1) I have had the problem that whenever the phone loses its GSM signal, it has trouble reconnecting - even when signal is known to be good.
In most cases the phone will subsequently show "full signal" but when trying to make a call, it turns out there is in fact no connection. In the mean time the phone is burning up the battery in record time trying to re-establish the connection. Switching to airplane mode and back just makes the phone lock up partially, only powering down and restarting restores the connection.
On the net I have found similar problem descriptions, but no solutions... other than trying different baseband setups (which didn't help). I would greatly appreciate any suggestions for a fix!

Related

HD2 Radio Has Horrible Instability

Is anyone else here having similar problems with the radio on their HD2? Mine seems to crap out severely when it comes to 3G. I have notice dhtat just about every time the phone is powered on, it will turn the data connection in the settings off by default regardless of It's state when the phone was previously powered on.
Also, I have noticed sometimes the phone will sporadically switch out of 3G mode and into phone only mode and I must go into the settings menu and re-enable it.
Also, Sometimes (The phone has done this twice today so far), the phone will still indicate that it is in 3G mode but when I attempt to browse the web it will return a page cannot be found error and the only way to fix this is to go into settings, disable and then re-enable the data connection.
My current radio version is 2.08.50.08_2. Is there something better out there?
I had the same problem with the data connection shutting off. I downloaded HD2Tweak and it helped keep it on.
dornstar said:
I had the same problem with the data connection shutting off. I downloaded HD2Tweak and it helped keep it on.
Click to expand...
Click to collapse
can you post the link to that tweek?
alsalahi said:
can you post the link to that tweek?
Click to expand...
Click to collapse
It's been a while, but I think I got it here. It was the English version.
http://www.montecristoff.com/hd2tweak.htm
Under "4. Data", I turned on Internet, MMS and Data to be on permanently. Worked like a charm. First day, I had 13 hours straight of data connection. Before using HD2Tweaks, I never had more than 20-30 minutes.
I've noticed today the 3G connection went from full bars to none and also no phone bars.. and it reconnected again.
Sometimes it will not reconnect to signal for a while after I leave underground train station.
In areas of weak-medium signal strength, I've noticed it switch between E and 3G a lot and drain battery much faster.
The signal reception is generally excellent in the city, except if inside a building with thick walls, so I don't understand why it has signal issues when outside.

[Q] 3G/ data connection turns off spontaneously

I have a very annoying problem:
For some reason the data connection on my Legend turns off spontaneaously. Only way to turn it on again is by turning on/off flightmode or data connection.
Because of this I'm missing out on emails, facebook updates and whatsapp messages. Very, very annoying.
It should just work in my opinion -i.e. have a stable, permanent data connection . Btw, I have tried with my sim in another phone and then the connection is stable. So I am sure it is hardware/software related.
Anyone? Thanks!
I get the same issue if I'm out of range for extended periods of time. Almost as if the Legend forgets to search for signal again. A reboot fixes it in the short term
3G/ data connection turns off spontaneously
I have a same issue on my Legend, hoping that someone will come up with a fix...!
I also had this issues with CM-6.1 after 3 month without any problems.
Today i updated to CM-7.0-RC4 and the problem is gone and hopefully don't come back (Was gone before i updated the radio)
anyone has some useful idea in this topic? i am also ccping with this problem. syncing worked for 4 months and but since then it just disconnect from mobile data network and i have to force it to connect again. I have stock 2.2 rom anyway.
have any of you tried factory reset to solve this problem? it is a bug, i think and man, we sometimes miss important things.

[Q] defy+ data network woes

i have a variation on the data network problems, not as annoying as reboots,
but getting close.
normally i am on GSM only, as my data needs are low and it extends
battery life. for hours, everything is dandy. then i notice that
the "G" icon and the signal bar are not blue anymore (stock theme)
but grey. 'settings' say i am still data "connected", but in fact
data connection is out (the operating system thinks there is
data connection, browsers and mail clients keep spinning and
trying until timeout).
turning on and off wifi makes the phone try to connect to the data
network again. sometimes this works, but more often that not, i have
to switch to 3G mode for this to work, and sometimes even that does
not help, and i have to go airplane mode to turn the radio on and off
completely. otherwise it just tries and tries and tries to reconnect,
draining the battery like crazy, and sometimes resulting in these
mysterious reboots others are experiencing as well.
is this the phone or a network problem? (tmobile in the netherlands)
i was on the same network, same SIM with an older LG android phone
and i dont recall having this problem, so i am a bit hesitant
to blame the network for every outage...
should i just send it back for repairs/replacement?
system version: 45.0.74.MB526.Retail.en.DE
baseband: EPU93_U_00.60.00
for a while i will keep the phone in 3G mode to see if the same
problem exists. as my mobile data needs are low, it would be
a shame if i cannot keep it in GSM mode because of this...
I had the same problem couple of months back but since I'm on msginger don't have that enjoying problem anymore.
Ohh and as far as remember it was only when the battery was on maximum save, now I'm using custom and it's fine
Sent from my MB525 using XDA Premium App
mikeman8484 said:
I had the same problem couple of months back but since I'm on msginger don't have that enjoying problem anymore.
Ohh and as far as remember it was only when the battery was on maximum save, now I'm using custom and it's fine
Click to expand...
Click to collapse
i am on custom saving mode. i think that the saving modes, where
the data connection is cut off after some inactivity, just flesh out
the problem more, as trying to connect back to the data network
happens more often then during normal use, when data connection
is kept alive all the time.
since i set the connection mode to 3G or better, i did not have the problem
but that was only a couple of hours ago. sometimes a day goes by
without manifesting itself...
I'm on 2G all the time. And the custom saving still got set up for cutting the data off but i don't seem to have that problem anymore i can check later on if it would still appear on max saving.
Sent from my MB525 using XDA Premium App
so after days, it seems like i cannot reproduce these problems
while on 3G. seems like 2G only for data is not 100% reliable
either because of the phone or the network itself, or both.
pitty.
i m having problems with network reception with the 7.2 CM rom on the defy+.tried the baseband switcher in this link but still little or no reception
http://forum.xda-developers.com/showthread.php?t=1203297
i have been on 3G last couple of days, and no data woes.
however i had a spontaneous reboot, so the reboot problem
is seemingly not only a 2G issue (if it is)..

Problems with signal (complete loss of signal sim card)

Hello,
Its very often, i'm using the phone and I lose the signal completely and stay for about 10/15 minutes. ( I reset the phone, put it in airplane mode and no signal back )
i Removed the sim card and put in another cellphone and i have a signal in 100%.
Is there other radio that i can test or another solution??
thanks
My N4 has same problem, signal is cut and all operations with SIM frozen when phone falls asleep. If SIM PIN query is activated, then I am asked to enter PIN, but all entries are ignored, no matter if correct/incorrect and how many tries. So I have disabled the PIN query.
Soft: I have flashed many combinations, got the best result with .27 version on stock rom & kernel. It did not cure my phone, just prolonged the time before radio fails, around 30mins after screen off.
After reboot all is OK, signal is good, data works, I can call out & receive phonecalls without drops, etc. Until radio freezes on sleep.
radios are here:
http://forum.xda-developers.com/showthread.php?t=2087227
Please keep this updated with your solution. I personally have given up and am in deep s**t with complicated RMA.
Welcome to the club. Search and there are some things you can try. But nothing full proof.
FYI, if you are prepaid, there is no roaming, so you phone will cut out a lot.
hepatiit said:
My N4 has same problem, signal is cut and all operations with SIM frozen when phone falls asleep. If SIM PIN query is activated, then I am asked to enter PIN, but all entries are ignored, no matter if correct/incorrect and how many tries. So I have disabled the PIN query.
Soft: I have flashed many combinations, got the best result with .27 version on stock rom & kernel. It did not cure my phone, just prolonged the time before radio fails, around 30mins after screen off.
After reboot all is OK, signal is good, data works, I can call out & receive phonecalls without drops, etc. Until radio freezes on sleep.
radios are here:
http://forum.xda-developers.com/showthread.php?t=2087227
Please keep this updated with your solution. I personally have given up and am in deep s**t with complicated RMA.
Click to expand...
Click to collapse
i change to 0.24.
Now i have signal with the wifi on. But the signal after a half hour drops and came back after some minutes.
So there isn't a solution to this problem ?
lorrancruz said:
i change to 0.24.
Now i have signal with the wifi on. But the signal after a half hour drops and came back after some minutes.
So there isn't a solution to this problem ?
Click to expand...
Click to collapse
I keep hoping there will be a solution.
I think i'm found a solution.
Today i go to SETTINGS > MORE ... > CELL BROADCASTS
and disable everything and during all the day my signal not drop.
I never had a day that the signal not drop and today after that change happens.
So tomorrow i'll hope that the signal not drop ! Let's See !
this happens to mine as well and I never had this issue with my galaxy s. I have one of the first batches from december. Im wondering if a replacement will fix this issue or if it is software but I am leaning towards hardware problem

Mobile Data will not enable!! (Dynamic Kat)

I need help this is driving me insane!
I've been running Dynamic Kat Rom for about 6 months or so now. Everything was working fine then all of a sudden a week or two ago I noticed my mobile data is not enabling at all.
I can only connect on Wifi and only receive SMS.
I've tried
- Messing will all the data/network settings
- Turning Mobile Data on and off -- no effect
- Toggling Airplane Mode on and off as suggested in some places
- Wiping everything but Data and reflashing latest ROM
- Reseating the SIM card
- several other things I forgot..
I do see the carrier information in the top left (AT&T) and I am getting signal bars.. but not indicator for 4G/LTE/etc
I've been messing with this for a week now and it's driving me insane.. I can't get a connection anywhere unless I'm on Wifi.
Anyone have any suggestions? I'm not super phone savvy, but willing to try any suggestions anyone may have.
Hmmm.. weird.
So I called AT&T and asked them about it.. figuring it could possibly be a carrier issue.
They told me to try things I had already done 100 times.. turn the phone off and on.. turn wifi off... etc.
I turned Wifi off... (which I had done 50,000 times before) and 4G popped up.
I guess they did something. So.. guess it's resolved.
Problem has returned.. same issue. I will have 4G signal for hours and then all of a sudden it will drop completely and I can't get a data signal no matter what I do.
I see AT&T in the corner and have signal bars, so I AM getting some kind of signal.. but no data connection whatsoever.
It seems completely random and intermittent.. I can have data signal for days with no issues then I will lose it for days.
Restarting the phone 5-20 times sometimes fixes it.. but that's about it. Anyone have any ideas what could be causing this?
Bad signal / carrier issue?
Call them and report a fault in your area?
I have called them multiple times, they will reset the signal.. sometimes it will come back right away, sometimes it wont.
And this happens regardless of where I am. I know for a fact where I am right now has a great signal strength. I get 4-5 bars on average. But this also happens at home as well about 20 miles away, which also has a good signal, or anywhere I go really it can happen. This isn't in the middle of nowhere either, it's smack in the middle of SoCal (LA/OC)
I'm beginning to think it may be a SIM card issue or a hardware issue with the phone. I'm going to try asking them to send me a new SIM card.
Another thing I will notice is when I have a working 4G LTE connection, and I'm on Wifi... it will sometimes CONSTANTLY switch back and forth between wifi and 4G like every 10 seconds, even when I have full signal strength on Wifi and 4G.
Disable Smart Network Switching in WiFi settings
it's nothing but a buggy headache, disabling might fix most of your problems, almost certainly the constant switching back and forth
Yeah forgot to mention I have disabled that. It's disabled now. It solves the constant switching back and forth (when I actually have a data connection), but that's kind of a separate issue as the losing data connection.

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