Develop Bugs

[SOLVED]Can't get 4g or 3g. Only E.

I fixed it by flashing a new ROM and wiping all the data!

Someone please help! I don't know what to do!

Nevermind, I think I fixed it!

I fixed it by changing the band to GSM Preferred/GSM ALL but now I only get E. Any way I can get back 4g?

Change it back to automatic or Odin kl1 modem from rootzwiki team kang post.
DaAwesome1 said:
I fixed it by changing the band to GSM Preferred/GSM ALL but now I only get E. Any way I can get back 4g?
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Sent from my SGH-T989 using XDA App

chib1panda said:
Change it back to automatic or Odin kl1 modem from rootzwiki team kang post.
Sent from my SGH-T989 using XDA App
Click to expand...
Click to collapse
I changed it to auto, and i'm getting signal. Time to check if 4g. Thanks.
EDIT: It shows signal, but Im not getting any. Can't send text or browse web. Time to odin modem.

I flashed it, and I went to settings and looked at the network mode: It was GSM only. I changed it to auto mode. It seems to still get and send texts, and I looked at band selection with the dialer code, and there wasn't a star besides anything. I think it might've worked, but I still only get e.

By flashed I mean odined. Lol
Sent from my SGH-T989 using xda premium

I tried changing it to automatic in the band selection menu, and it showed signal, but texts didn't send.
Sent from my SGH-T989 using xda premium

Also, if it means anything, I can't change it to wcdma only in settings.
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Can anyone help?
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If anyone helps me get it fixed TONIGHT, I will try to donate a few dollars to them.
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I had same issue and this is how I fixed it.
disable data connection and switch your phone off, remove the back cover and remove sim card completely. Then re-insert sim card and turn your phone back on and it should ask you to re-enable data connection once it boots up.
let me know if this helps

media_11 said:
I had same issue and this is how I fixed it.
disable data connection and switch your phone off, remove the back cover and remove sim card completely. Then re-insert sim card and turn your phone back on and it should ask you to re-enable data connection once it boots up.
let me know if this helps
Click to expand...
Click to collapse
I did this, but it didn't ask me to turn it back on, so I turned it on manually, and still only E.
Sent from my SGH-T989 using xda premium

Other phones receive 3G? Perhaps T-Mobile is servicing your area? This has happened to me but I had no control over it.

iLeopard said:
Other phones receive 3G? Perhaps T-Mobile is servicing your area? This has happened to me but I had no control over it.
Click to expand...
Click to collapse
It had 4g earlier today, plus my dad's T989 has 4g here
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Delete and re-add apn?
Sent from my SGH-T989

Did you by any chance flash a rom port?
Sent from my SGH-T989 using XDA App

Weird. My issue was that I was testing a few of the skyrocket modems. After using Odin to get kl1 it worked again. Yeah i would sugeest resetting apn in wireless settings .
Sent from my SGH-T989 using XDA App

Here's what I did that messed with my 3G
I flashed skyrocket roms.
So what I did was wipe everything. Go to mounts and storage and format system. Then flash Juggernaut or any other rom you desire. Then you're done
Sent from my SGH-T989 using XDA App

LTE on/off using JB leaks

Might work for you, worked for me. Couldn't get LTE to stick and this is the method that worked.
First, pop out sim card. It will hit the battery, its ok. You don't need to pull it completely out.
You will get a message "sim card removed", or in my case my phone rebooted lol
Type in *#2263#
Select Automatic if you want LTE, select another band if you don't.
Once you made your selection, push sim card back into place and reboot your phone.
I guess you could do this to disable LTE as well, but for myself it was to get it working. CM10 based roms worked great with LTE but never could get it to work with any JB leaks.
Hope this helps you guys out!
Sent from my SGH-I747 using xda app-developers app

Just a heads up. Flashed a new modem and had to repeat the process again.
Sent from my SGH-I747 using xda app-developers app

[Q] Please Help, only Edge data working!!!Can anyone help me?

Bought my phone form Rogers. LTE was working fine.
Was going to USA and paid an online company to send me unlock code.
Used it and went using Tmobile which only has EDGE data.
Just got back swapped back in my SIM From fRogers and can only get EDGE speeds.
Tried reboots rmoving SIM card.
Also made sure settigns were correct for Rogers APNs and also that toggle was on for GPS/HSPA/LTE.
To no avail.
Briefly, I toggled on and off the apn setting from ROgers LTE to tethering LTE and low and behold it seemed to work.
But now it is back to stuck on EDGE and nothibg I am doing can help.
Can this be a byproduct of the unlock?
Is my LTE faulty?
I s there some hidden menu where perhaps a setting can be changed for a fix?
I am depserate as the alternative is to return the phone and they are on backorder everywhere now.

have you gone into settings> more settings> mobile newtorks>and taken a look at your access point names and your network mode?

yes
I even confirmed with Rogers and settings are correct
Are there any service mode type ways to switch on/off data? Maybe I inadvertently did something

What area you in now and was before.
Did you tried different locations like out of your house,work, out of city.
Sent from my SGH-I317M using xda app-developers app

Canadoc said:
yes
I even confirmed with Rogers and settings are correct
Are there any service mode type ways to switch on/off data? Maybe I inadvertently did something
Click to expand...
Click to collapse
Try setting it to WCDMA only, and then use the network operators button to search for networks
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C.Flat said:
Try setting it to WCDMA only, and then use the network operators button to search for networks
Sent from my SGH-I317M using xda premium
Click to expand...
Click to collapse
Will try this again. though not sure of that option.
for me under network mode it gives me choice of GSM
HSPa
BOth with auto connect
or those two with LTE auto connect.
Right now if I try to select HSPA only ct it does't change and reverts to GSM/HSPA/LTE (auto). Seems it will only accept a choice that allows it to default back to Edge (GSM)
Anyone know if there are some deeper settings to

gotshoaib said:
What area you in now and was before.
Did you tried different locations like out of your house,work, out of city.
Sent from my SGH-I317M using xda app-developers app
Click to expand...
Click to collapse
If I change the sim and put it in my old s2 I get 3g speeds right away so I should at least be getting that and I know form the day I got it that LTE was working well in my home.

it depends on what they flashed maybe they flashed a different antenna because the freq's of the tmo version are diff than the rogers version

Wasn't a flash. It was an unlock code for Rogers entered at the invalid SIM screen. They were not told which network I would be using it
Sent from my GT-I9100 using Tapatalk

http://forum.xda-developers.com/showthread.php?p=33989638
Try resetting factory settings again, and flash this Rogers modem.
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Can I flash the modem if I am not rooted.
Sent from my GT-I9100 using Tapatalk

Does flashing the modem show evidence of such?
I.e if this attempt at a fix fails my recourse is to return the phone as defective. Don't want there to be any evidence of tampering that could void my warranty

You can flash modem.without rooted.
Zip.file.modem.through cwm or .tar modem file through Odin.
And if you are under 14 days of purchase, reset your phone to get your log minutes under 30.
But I guess you.won't need to do.that, flashing.modem and reset should work.
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Well did factory reset before risking modem flash.
Low and behold while i had to reinstall and setup everything again, LTE is now working again.
Not sure what happened. Will ultimately root at least to back things up.

[Q] Wifi not working with 2g Network Sim

Dear Experts out there
I also have HTC One VX - I don't live in US therefore I had to sim unlock the device, which I did.
I was able to successfully S-Off the device and changed the Super CID to 22222222 and flash CWM Recovery.
Everything works fine except the wifi on my 2G network Sim.
Note: Wifi works without sim, wifi works with AT&T sim but wifi does not works with my country network sim. Only 2g network is available in my country.
Workaround: I use AT&T sim for wifi to work and quickly swap it with my Network SIM and wifi works until the phone is switched off or restarted.
I need permanent solution for this if anyone can help or know what is the reason behind wifi not working with my 2G based Network Sim
Regardz

This sounds odd. Are you running a stock ROM or custom? And would you be able to pull a log for us?

Using custom rom, tried many roms same response, what logs u want me to pull
Sent from my Nexus 4

Sorry, a logcat. Just download catlog from the market. Make sure to reproduce the problem. Then go into catlog, press the menu button, and hit save. Then upload here so we can have a look.
Sent from my Rock n Roll Toaster

MansonDroid said:
Sorry, a logcat. Just download catlog from the market. Make sure to reproduce the problem. Then go into catlog, press the menu button, and hit save. Then upload here so we can have a look.
Sent from my Rock n Roll Toaster
Click to expand...
Click to collapse
I have attached the log for your reference, hope you come out with some solution.
Thanks

Hey MansonDroid
Any update over the logs?
Did you find anything odd?
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I have but I'm not quite sure what it is associated with. Trying to do some research on the subject. For now, do a nandroid backup and try flashing a different ROM if you haven't tried already to see if it helps.
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Thanks for your followup. Well i have tried two to three roms, the problem exists in all of them.
Its allright, u see if u find something
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Are you running Jmz's kernel? Did you make sure you successfully changed the Cid on the phone? Did you try and S-OFF?
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This is what I found odd:
Unable to open connection to supplicant on "wlan0":No such file or directory, retry 0
I want to say it has something to do with the WiFi driver? Which has something to do with the kernel I believe? Don't know too much about low low level things.
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Hey. If you would have read above, I have said i have done all the things u are saying.
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Well thanks for your feedback, this info is reasonable for me I guess. If it is what you are saying maybe trying more kernels. Maybe something will help.
Thanks for all the followup u have carried, appreciated
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I'm sorry I couldn't be of more help on the issue. I'm sure someone who knows more about low level development will see this and advise you better than I. I wish you luck sir.
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Your efforts are appreciated
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[Q]wifi dropping

I Can't find a thread about this, so I was go ogling and that doesn't really help. I am having major problems with my wifi it keeps dropping non stop and it's really annoying. I have my phone stock but rooted and was wondering is there any way to fix this? I know it's a Samsung problem but if I were to load this up with a rom should that help? Thanks in advance
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seedofchaos said:
I Can't find a thread about this, so I was go ogling and that doesn't really help. I am having major problems with my wifi it keeps dropping non stop and it's really annoying. I have my phone stock but rooted and was wondering is there any way to fix this? I know it's a Samsung problem but if I were to load this up with a rom should that help? Thanks in advance
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
Maybe it's your router or better yet the router settings. Have you tried changing any of those settings?

Am I missing something? How is it a Samsung thing? What kind of router do you have?
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After looking all night I found a thread that fixed this. You have two choices really to fix or buy your router which I'm not going to do, or you can type in on your dial pad *#0011#. Then you click your menu button, click on the wifi option, and then disable the energy saver wifi mode. That made it so my phone wouldn't drop wifi connection anymore. NOTE: each time you restart your phone you need to turn the wifi energy saver off through the command *#0011#. Hope I helped some of you because this bug is truly annoying.
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seedofchaos said:
After looking all night I found a thread that fixed this. You have two choices really to fix or buy your router which I'm not going to do, or you can type in on your dial pad *#0011#. Then you click your menu button, click on the wifi option, and then disable the energy saver wifi mode. That made it so my phone wouldn't drop wifi connection anymore. NOTE: each time you restart your phone you need to turn the wifi energy saver off through the command *#0011#. Hope I helped at least some of you because this bug is truly annoying.
Sent from my SGH-M919 using xda app-developers app
Click to expand...
Click to collapse
That stinks. I don't have any problem and I think this is only the 2nd time I've seen anything posted like this about the S4 (the S3 did have that issue and was common). I've never turned off any energy saver and mine stays connected 100% of the time. So you're saying either that or you have to buy a new router? What kind do you have now and what settings on it did you find out that cause this issue for you?

Right now I have whatever Verizon gives fios customers. It works perfectly for all my phones, tablets, and computer. Just not on my s4 unless I do the dial pad trick. I'll post a link on the xda thread when I get home on how to fix your router. It really does make me angry that I paid 600 for the phone and it does this. Hopefully Samsung fixes this soon since they acknowledge the problem
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Btw here's Samsung acknowledging the problem.
http://www.zdnet.com/samsung-acknowledges-galaxy-s4-wi-fi-connection-problem-7000015431/
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Do you have a dlink router?
GS4

My gf has an S4 and has the same problem. We have a Netgear WNDR3500. So it's not isolated to a D-Link. She also did the dial pad trick and it seems to work for her as well. Need to find a script to run on boot to set the power save to OFF.
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