After much reading, and stumbling over the same posts repeatedly, I must ask for help.
Heres the phone:
Gt-i9100
2.3.6
i9100NEKF2
2.6.35.7-i9100XWKK5-CL754841 [email protected] #2
Checkrom RevoHD V4
CriskeloROM Gingerbreak v32
Currently have a Optus sim loaded into it, staying in Melbourne Australia.
Optus seems to be lousy, I've talked to several people who seem to agree. Since public perception is far from accurate, I cant really blame optus entirely. I havent tried any other SIM cards yet since I need the optus number at the moment.
I've tried quite a few ROMS and quite a few different Kernels, not being able to tell much of a difference in signal strength. The phone will have the 3g icon lit up, but refuse to do almost any activity. Then five minutes later in the same location it is working perfectly, with a ping of 147ms and download rate of 327.7kB/s (using Speedtest.net)
Since I am using KitchenPro I am able to change the modem easily, some dont work, others do. How do I narrow down which ones are best for the phone? The answer of "use it for a little while and you'll know" cant be the best answer. Is the carrier-shipped modem the best that is available? I've read the modem ref guide and it doesnt offer anything other than a list of letters and numbers. Some people have reported things working well with telstra on particular modems, but nothing on Optus.
1) Is a baseband or modem something that will either work, or not work? Or there a signal difference from one to the next.
2) I almost always have 3+ bars of connectivity for the cell service, it works fine, all the time, even with the modems that did not allow data connectivity the phone always seems to work. Does a modem package effect both cell service and data?
3) What would be the most effective method of testing a new modem?
4) Is there a guide somewhere that lists the guts behind the modem packages, ie frequency ranges, so that I can look up the carrier, and match it manually with a modem?
Please Help! With spotty services available, and no means of telling if my problems are carrier related or phone software issues, I find this quite frustrating.
Thanks for reading
Related
I have a rooted Tmobile phone (Octane) and loving it. This isn't a 'root' question, but a signal issue that I noticed before and after the root (not related to rooting).
Anyhow, when I leave an area (in my vehicle) that has low Tmobile signal, it switches to ATT and says "no service". That's fine, but what I noticed is when I return to the same area, it will take an additional 4-5 miles of driving into a strong Tmobile signal area before it pick up the Tmobile signal.
In my area, there are no agreements to roam on ATT's network, so my phone is dead until I re-enter Tmobile signal area.
My question is, it is a nuisance that my phone can't use Tmobile towers as a priority. It seems to hold onto ATT's towers longer than it should. What can I do to fix this issue if possible?
Thanks in advance!
Edit: My wife has the same phone and it does the same thing.
Have you changed modems? That seems to fix many issues pwople have with connection issues.
Not sure to be honest. I used this process to install Octane's ROM:
http://forum.xda-developers.com/showthread.php?t=1223765
I did see something in Odin about "Modem" but don't know if that is the proper way to install a modem or not.
This thread will tell you how to change the modem.
http://forum.xda-developers.com/showthread.php?t=1192436
FB also recommends one in that thread iirc. But other members have better luck with different ones. Im told it depends on your location but nobody has said which modem is better in what part of the country.
Awsome, thanks for the leg work on finding that for me! Is there a way where I could opt out of roaming so my phone uses Tmobile as a priority 'all' the time?
This is just incase the modem doesn't seem to help. Just one idea I had.
Also, KJ6 modem is the one I need correct?
Not sure of the roaming opt out.
FB puts the KG4 modem is his personal build of VB. Im using KG4. I would try all of the GB modems to see the results.
mar122999 said:
Awsome, thanks for the leg work on finding that for me! Is there a way where I could opt out of roaming so my phone uses Tmobile as a priority 'all' the time?
This is just incase the modem doesn't seem to help. Just one idea I had.
Also, KJ6 modem is the one I need correct?
Click to expand...
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Roaming can be disabled in Settings > Wireless and Network > Mobile Networks.
So I recently got an Inspire, coming from a Vibrant. I have T-mobile service. On the Vibrant, in the same location, I had superb cell signal. On this Infuse, it's more than terrible.
I know it's designed to be an ATT phone, and the internal hardware won't pick up certain T-Mobile bands, but I have also had a couple other unlocked phones that got better signal than this.
I can literally set the Vibrant down on the table with 3-4 bars of service, and the Infuse next to it with Emergency Only or an X (no signal). In other random spots I can get a couple bars, but very spotty. Sometimes I'll have a couple of bars, and literally not move an inch and lose signal. That's frustrating!
I know I can't get 3g-4g speeds. Not an issue with me, I use wireless, but I do want to figure out how to make and receive phone calls.
I unlocked using Ace, and let it run for a few days before making any other changes. Today I flashed Android Revolution HD 6.3.3, and then flashed the recommended radio about an hour later. (used the fastboot method described in the radio's readme, the RIL was included in the Rom)
So my signal is slightly better, but only barely. Still very unreliable.
I guess my hope is, to gain some insight as to how the radio even works, so I can start to learn the differences in them, and find one that works better.
Is there any hope that I will find one that is suitable?
Can anyone recommend radios/a solution?
I also wonder, since the Desire has compatible radios, and they are used in Europe, if they may pick up T-Mobile USA signals better.
Thanks for reading, and thanks in advance for your help and advice!
P.S. I know its been discussed before, however, I've read hours and hours worth of posts, and in the end I decided asking was definitely worth it. Ya'll are smart!
Sent from my Inspire 4G using XDA
Radios react differently for everyone cause they are actually based on regions as to where your at. But there are positive responses on the .03 , .28 and .30 radios. Give them a shot and try them out each for about a few days and see how they work for you. Development section has a radio thread you can get them from.
Just remember flash radios at your own risk, they are a little riskier than flashing roms. Good luck
Hi everyone.
I owned a Nexus 5 one month ago, but unfortunately, it does not work as expected. On 4.4.0, I had multiple issues concerning network already (unable to switch to 3G networks only, very variable HSPA signal reception (from 4/4 bars to Edge exactly at the same place), ...). This issues were supposed to be fixed with 4.4.2 and most of them are, excepting HSPA signal which is still very weird. However 4.2.2 brings my phone another issue that I didn't noticed on 4.4.0 which is a very annoying and repetitive complete signal blackout (no reception at all (Edge/HSPA), even for emergency calls I guess). Signal drop can happen twice in an hour, twice in 10 minutes or may not happen at all 3-4-5 hours long. It's completely unpredictable. After a while, Edge signal (not HSPA !!) gets back by itself. If I wait 10-20 more minutes, HSPA comes back again, until it drops again.
Moreover, at phone boot, just after typing my PIN Code, it usually takes 2 or 3 minutes to catch a signal. Very slow isn't it ?
It does not seem to be a network issue, since my Samsung Galaxy S III doesn't encounter this using the same SIM card.
I read on Google forums and probably some XDA threads that I was not the only one to face this kind of network issues, even on 4.4.2, but issue description was each time a bit different from mine, thus I tought that it may be useful to post a new thread to describe precisely what was my problem.
Edit : My Nexus 5 is unlocked and rooted, but issue is present on untouched 4.2.2 also.
Edit 2 : http://forum.xda-developers.com/showthread.php?t=2525583 is probably my issue.
Do no hesitate to answer if you're thinking that you have the same issue (or kind of) or if you think that you know something that may help.
Thank you .
KennyG9
You can flash the radio from version 4.4 that helps a lot, I'm at work just search this forum the directions are here, it's easy.
Sent from my Nexus 7 using Tapatalk 4
^^ He appears to be talking about the link below. You can flash different modems that may work. Some people say different modems helped but I've had no such luck. I've flashed every modem available and still don't have data almost everywhere I go. I have data at home but that doesn't really matter since I don't need my phone at home.
http://forum.xda-developers.com/showthread.php?t=2514095
Did you try flashing your carrier's specific radio?
Team Nexus 5 sucks
dicecuber said:
Did you try flashing your carrier's specific radio?
Team Nexus 5 sucks
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Were would one find the carrier specific radio? I'm on T-Mobile but have only found the thread with modems. Nothing carrier specific.
Thanks for your answers. Unfortunately, flashing different modems does not seem to help .
i've read, the .15 is good with t-mobile.
i'm testing it today too. my problem is not only a signal drop, i have only edge too and my modem won't switch back to umts or hspa(+).
i'm in germany with t-mobile (congstar).
Hello everyone. I was hoping that some of you that are more knowledgeable about this stuff could help me out here. I recently flashed from CM 10.2 to KitKat (4.4.4), which everything went smoothly for the most part. However, I've noticed that my phone constantly has no service. I should probably state that I live in an area with very low service to begin with, but prior to the flash I was able to get at least a bar inside my house. Now, I'm unable to get anything.
The first thing I could think of to check was my settings in the phone. The data is enabled, CDMA Roaming mode is set to automatic, CDMA subscription is set to RUIM / SIM, and the Preferred Network Type was Global. I wasn't familiar with the global setting as I was used to seeing the LTE / CDMA / EvDo options there. So, when I clicked on it, it now gives LTE, 3g, 2g, 1x, and Global as options. I tried changing it to 3g, but the changes would not save that way. The only way I could get them to save was to power off the phone, take the sim card out and put it back in, and then reboot and switch them. Once i pick a new setting (which is now set on 3g), it locks it and I can't change it again without removing sim card.
When I look in About Phone > Status section, I'm seeing the network says searching for service. The mobile network type is unknown. The service state is out of service, and the mobile network state is disconnected.
Is there anything I can do to fix this issue? If so, I would truly appreciate any type of guidance you guys or gals could give me. Thanks!
I didn't read your entire post but myself and several others have reported signal issues after 4.4.4 flashes on all different ROM types. I think 4.4.4 is just picky about what firmware and baseband you're running. I flashed a few different RPM packages too but in the end I got lucky flashing the BLK3 modem and it seemed to fix my issues. I had noticeably poor signal strength most of the time and a couple times I would look down at my phone and I'd have no signal at all.
Maybe a dev or expert can shed some light on the root of the issue. I don't know enough about under the hood stuff to make an expert diagnosis.
Edit: The unanimous fix that everyone appears to agree on is to flash the MF1 AIO (all in one) package and then flash the ML1 modem only. Problem is finding a legit source for the MF1 aio package seems to be up in the air.
Like I said though, I didn't even do this. I was just trying all kinds of combinations of modems/aio's/ and rpm's and I got lucky. 2 days now with a solid signal at all times. LTE speeds are blazing too, 45 down and 10 up.
Check ur imei number. Or flash a backup and see if that fixes ur problem.
Sent from my SCH-I535 using XDA Free mobile app
jayjr1105 said:
Like I said though, I didn't even do this. I was just trying all kinds of combinations of modems/aio's/ and rpm's and I got lucky. 2 days now with a solid signal at all times. LTE speeds are blazing too, 45 down and 10 up.
Click to expand...
Click to collapse
Can you share the specific steps you took? What worked for you and where can we download it from?
thanks!
I have searched this forum, but couldnt find any thread with this specific issue, however there are some threads regarding the different modems available... have browser them but the sollution for me is still to find
Using nightly CM-12 with included modem, global OPO on the Telenor network in Sweden(2100Mhz for UMTS, dont have LTE on this SIM).
I installed CM12 as a troubleshooting-step after I tired using both the stock CM11s and CM11 nightlies. CM12 gave me the best signal strenght over all.
This thing is, I can get a good signal so the phone seems to be able to communicate with the cell-tower on the frequency used by the nerwork... but it is very unstable... Jumping from H/H+, from full to none signal-stenght. Also seems to change Cell IDs, this is even when the phone is stationary...
Even if I have an OK signal on H/H+, trying to use the dataconnection sometimes works, but often it would result in time-outs etc, even if the up/down arrows in the indication icon shows activity... Also sometime trying to use dataconnection when the signalindicator looks OK, it will drop to nothing... And speed-tests gives very poor results...
Dont really know much about how the physical layer for the mobile networks work, so dont know how to interpret this behaviour...
I have described these symptoms also in the modems-thread in the General forum, but having tried most of the modems, this is still the best ROM/modem combo...
Dont know if related, but using a WLAN-connection the HSPA cell connection is stable at around -103dBm... no flapping...
I feel that I have tried the most often recomended action with no appearant improvement, dont really know what to do now? Change modems, try to unlock additional bands... Any suggestions?
If any developer wants me to try any thing, or provide any more information I will try to do/supply that!
Update
Took the phone out to the local shopping center and got some surprising results...
Consistent -59dBm and around 20Mb/s downstream on UMTS.. So this beggs the question, why is it flapping up and down at home, where an old galaxy s3 mini sits comfortably at the same usable signal-strenght most of the time on the same network?
Is this a modem firmware thing, or antenna?