Database Info

[Q] HSUPA and Data on Captivate Help

I seem to be having an issue with my data and am trying to narrow down the reasons for my problem. The issue is I CANNOT use HSUPA (H) for data, I always get a connection timed out issue. I put the phone in 2G GSM mode only and have data working, but of course I was spoiled with better speed I can't stand it.
My question is if AT&T could be doing upgrades to the towers in my area, will that affect my speeds, or is something broken internally in my phone. When I select WCDMA mode, it takes FOREVER for it to connect and says searching for a long time but does connect or displays (H) with 3/4 bars of signal. My friend has an unrooted captivate on 3G and has no issue with data. Does anyone know the cause of this.
I have tried a few different modems (jl3, jk4, kp1....) all the same and have tried 2 different OS's with same data timed out issues while trying to use (H). I am currently in the process of flashing back to stock to see if that will resolve the issue. Thank you for your time guys.

Thanontos said:
I seem to be having an issue with my data and am trying to narrow down the reasons for my problem. The issue is I CANNOT use HSUPA (H) for data, I always get a connection timed out issue. I put the phone in 2G GSM mode only and have data working, but of course I was spoiled with better speed I can't stand it.
My question is if AT&T could be doing upgrades to the towers in my area, will that affect my speeds, or is something broken internally in my phone. When I select WCDMA mode, it takes FOREVER for it to connect and says searching for a long time but does connect or displays (H) with 3/4 bars of signal. My friend has an unrooted captivate on 3G and has no issue with data. Does anyone know the cause of this.
I have tried a few different modems (jl3, jk4, kp1....) all the same and have tried 2 different OS's with same data timed out issues while trying to use (H). I am currently in the process of flashing back to stock to see if that will resolve the issue. Thank you for your time guys.
Click to expand...
Click to collapse
H doesn't necessary mean HSUPA. It simply means HSPA (HSDPA only or HSDPA and HSUPA). You didn't mention anything about your firmware but I guess you are experiment with non-Captivate firmware and modem combination trying to get HDUPA working. From what you described, it seems your current firmware and modem combinations lacks 850MHz support for 3G (most European firmwares lacks 850Mhz) and your local tower happens to use 850MHz, not 1900Mhz. Just a guess.

Make sure you have the modern set to proper frequency (WCDMA 850 or 1900) for your area. The modem thread can tell you all about how to do it.
Sent from my SAMSUNG-SGH-I897 using XDA App

Sorry guys, I guess that was an important part I forgot. I was running Andromeda and thought the same so tried Cognition 4.1.1. Also after going to stock 2.1 I still have the data issue. I can connect to wifi just fine, but no using ATT data will work.
I called customer service and walked through the steps as usual and after some looking into my area, he said there were 3 towers reporting severely degraded. It just sucks seeing my friends phones working with no issues. He said that repairs are stated to be finished sometime in the next few days and to call back later in the week if the problem persists.

Looks like you tried both i897ROM and non-i897 ROM, so it's not firmware related.
Did you try to put someone else's SIM into ur captivate? How about some other devices in ur area?

amtrakcn said:
Looks like you tried both i897ROM and non-i897 ROM, so it's not firmware related.
Did you try to put someone else's SIM into ur captivate? How about some other devices in ur area?
Click to expand...
Click to collapse
I didn't think about trying my friends sim card. I will test tomorrow morning. Ty for the idea to isolate the problem to my phone!

umm not really related to your phone. but im suggesting its the tower upgrades getting them ready for 4G that is causing your phone to act up. i have a HD2 and we have 3G down here. but since early march i get nothing but EDGE. what happens in the month march? AT&T will be launching 4G in selected markets. it was confirmed once i was talking to a AT&T tech. so im just waiting to see what happens in the end of this month.
NOTE: it could also be your sim card having problems. AT&T replaced mine thinking it was a problem with the sim card since i have a AT&T native W350 and i was getting the same problems. call them up again and ask to talk to a tech and tell them your having a problem with your sim card. they will set you up a appointment at a corporate store. free of charge.

I did not think that the Captivate's hardware was capable of HSUPA?
Is it?

bobapunk said:
I did not think that the Captivate's hardware was capable of HSUPA?
Is it?
Click to expand...
Click to collapse
there is a thread on how enabling HSUPA on the captivate. so if we can enable it im sure its capable.
heres the link if you want to read up on How to enable HSUPA on the Samsung Captivate

bobapunk said:
I did not think that the Captivate's hardware was capable of HSUPA?
Is it?
Click to expand...
Click to collapse
it is capable but att blocks it to save bandwidth

hmm,
That thread has not been updated for a long time...
What would happen if I flashed that i9000 modem with a KB1 based Kernel?
sal2708 said:
there is a thread on how enabling HSUPA on the captivate. so if we can enable it im sure its capable.
heres the link if you want to read up on How to enable HSUPA on the Samsung Captivate
Click to expand...
Click to collapse

bobapunk said:
What would happen if I flashed that i9000 modem with a KB1 based Kernel?
Click to expand...
Click to collapse
you would have data, but no voice

Sorry for nor replying sooner. My 3G data seems to be working again. My lack of in depth knowledge is why I put the hsupa above when my phone displayed H I didn't know what to call it.
It must have been tower upgrades. I didn't restart my phone and left it on the charger overnight and the next morning I had no issues. I did a reboot of the phone as a test and connected with data with no issue. Too bad as I was close to getting a replacement, though it would suck and be my luck to get one with other issues. Mine is a 1007 and works perfect (other than the obvious GPS.)
Sent from my SAMSUNG-SGH-I897 using XDA App

Pirateghost said:
you would have data, but no voice
Click to expand...
Click to collapse
That is what I thought, thanks!

[SOLVED] 3G data connection hiccups.

Hi there,
I'm using Revolution HD 3.6.1 with its radio and relative RIL (which becomes with the rom by default). Obviously I have S-OFFed and rooted.
I'm experiencing some hiccups in 3G data connections. I don't know if it's due to the carrier (Wind Italia) or something in the phone (maybe the radio doesn't support it at all?). I'm in Europe, precisely in Italy.
Maybe should use an european version of radio? Or what?
In detail:
I activate data connection. The phone shows 3G before, and quickly goes in H (HDSPA). Then I use many apps that needs internet connection. Within a short time it goes again in 3G and i have absolutely NO data connections. After a delay of 5-10 sec it goes again in HDSPA and everything works. When it goes again in 3G i have no data, then again H and data working.
What's the problem?
EDIT: Problem solved! See in this post.
P.s.: Sorry for my bad english

I was going to ask about something similar to this, so rather than start a thread I will post it here. I too am running the 3.6.1 with its radio, S-OFF, & rooted.
What I am seeing on boot up is the standard progressive upgrades of data networks (just bars, then 2G, then 3G, finally H). The H only stays for a few seconds then drops to 3G and basically stays like that. However, as soon as I open an internet requiring application, it jumps to show H and typically stays that way as long as a data connection is active. My Speed Test results show its 4G speeds (same as stock ROM and radio) when its showing the H, so obviously its working, I'm just wondering if its intentional that the display only shows 3G? Or maybe its set so the ROM "relaxes" on 3G, but switches to 4G when data is actually being sent/received?
~T.J.

Maybe you used to have a 'background' app updating constantly.
The G, 3G and H usually depends on the signal in your area, the H is usually for high data transfer. If you're not using the internet,downloading anything or updating anything on your phone, then why would you need it on all the time?
3g is usually the norm, so I wouldn't worry!

For my issue, my stock ROM showed me what was available in the areas as I moved around, including showing 4G all the time if I was in a coverage area (which pretty much everywhere around me is). If I moved out of the 4G area for instance, it would drop to show me 3G.
This one just shows 3G all the time, even when I'm in areas I KNOW are 4G; UNTIL I use the data connection, then it switches and shows the H. I know its silly, but I liked actually gauging my providers service by being able to see what kinds of connections were available in various areas.
The fact I have to actually open the browser or run a speed test to see if 4G (H in this case) is available in that area is a little odd to me, why doesn't it just show the connection that's available?
~T.J.

Guys, I found a solution to my problem, googling around. That's awesome.
FYI I'll post here:
1. dial *#*#4636#*#*
2. Go to phone information
3. Toggle ciphering so it's off
4. Turn off radio
5. Turn on radio
6. Toggle ciphering back on
It seems to be working to me. An half hour without hiccups till now.

I have had this problem ever since my hd2 two years ago. I thought it was normal. I'm about to try the fix. If it fixes it you are a life saver.
Sent from my HTC Sensation 4G using XDA App

Aww man same thing. Maybe its supposed to be like this.
Basically for me its for example on the xda app when ill refresh something it will always say processing as soon as the 3g symbol turns to h with both arrows on simutaneously.
Maybe that's how its supposed to be idk.
Sent from my HTC Sensation 4G using XDA App

Glad its not only me!!!! This is a problem. I am in the U.S and i have it also. Ive been trying to figure it out. I have radio 10.15.9035.2_2 and bricked kernel 1.2 i can not figure out if this started happening from when i flashed the lastest radio or when i went with bricked kernel above 0.91 i am still trying to figure it out. *#*# 4636#*#* is only a brief temp fix i know that much. But lets try and put our heads together and get to the bottom of it. Cause its been slowly pissing me off daily. Let me know what you guys hear. And i will keep you updated as well. Please pm me if you here anything on the issue. Thanks!!!!!
Sent from my HTC Sensation Z710e

Xx12thANG3LxX said:
Glad its not only me!!!! This is a problem. I am in the U.S and i have it also. Ive been trying to figure it out. I have radio 10.15.9035.2_2 and bricked kernel 1.2 i can not figure out if this started happening from when i flashed the lastest radio or when i went with bricked kernel above 0.91 i am still trying to figure it out. *#*# 4636#*#* is only a brief temp fix i know that much. But lets try and put our heads together and get to the bottom of it. Cause its been slowly pissing me off daily. Let me know what you guys hear. And i will keep you updated as well. Please pm me if you here anything on the issue. Thanks!!!!!
Sent from my HTC Sensation Z710e
Click to expand...
Click to collapse
Only a brief temp fix? Are you sure?
I'm not having the same problem as before, now. I hope it remains still as it is.

[Q] Only 4G Network Working

Well I have this SGS4G and I updated it to kd6 and it messed up the network. I almost never got a signal (it would show the circle with a line through it). I flashed it back to KD1 rooted and now it works but it only gets 4G network. Whenever I get out of range of a 4g tower and the phone switches to GSM it gets no network. Is their anyway to fix the radio firmware on this?

Please use the Q&A Forum for questions Thanks
Moving to Q&A

insanityrains said:
Well I have this SGS4G and I updated it to kd6 and it messed up the network. I almost never got a signal (it would show the circle with a line through it). I flashed it back to KD1 rooted and now it works but it only gets 4G network. Whenever I get out of range of a 4g tower and the phone switches to GSM it gets no network. Is their anyway to fix the radio firmware on this?
Click to expand...
Click to collapse
Go to the market and download an app called GPS Aids. Go through the initial set up with it, then under the Tools menu at the top (not the actual menu name, but it's similar), then scroll down the screen until you see an option called Hard Reset. Give that a shot. Bear in mind that you will lose any data you have on the phone when you do it.

Kd6? Never heard of it... Have you tried flashing a different modem?
Sent from my SGH-T959V using xda premium

KD6 would be the gingerbread update. Phone was fixed with a new sims card even though we got a new sims card when it was bought, turns out it was one of the older defective ones

insanityrains said:
KD6 would be the gingerbread update. Phone was fixed with a new sims card even though we got a new sims card when it was bought, turns out it was one of the older defective ones
Click to expand...
Click to collapse
For future reference - KJ6 was the GB update.

No Signal on G2x

I've had the G2x since it first came out and have always had issues with the signal dropping abruptly. However, since Thrusday, I have lost all signal to the tower and am unable to get it back. I was running EagleBlood's ICS ROM but have since done a full factory reset back to stock and completed an update via the LG Update Tool (I wasn't successful with updating the baseband any other way). Everything appears to be back to factory settings, but I'm not receiving any cell signal still.
Any ideas?
My baseband currently reads: M6600A-SCAUTNZ-2.0.9720T 1 [MAR 2012 10:00:00] MP:TRULGE_08.09.02R_MDM
When I choose Status under the About Phone menu I get the following details:
Network: Unknown
Signal Strength: -93dBm 10 asu (fluxuating slightly)
Mobile Network: GPRS
Service State: Out of service
I am also unable to enable Wifi calling. Basically the only calls/texts I can make are via Google voice on a wireless network.
I'm on the stock 2.3.4 rom currently.

Try a factory data reset and a battery pull
Sent from my LG-P999 using xda premium

Have you checked apn settings?
Sent from my LG-P999

Try a factory data reset and a battery pull.
Click to expand...
Click to collapse
I have done both of these already.
Have you checked apn settings?
Click to expand...
Click to collapse
I'm not sure what I should be checking. Is there a good article/thread on this?

I too upgraded to the new bb, and have been getting random signal drops. IDK if it's Tmo, working on their equipment, or the new base band. I figure I'll give it a week or so, as it hasn't yet interfered with my daily usage (mine drops, then comes back).
My suggestion to you, since your loss seems to be a constant, is to try using kwes 2.3.4. I had some other minor issues w/the LG release, that I don't seem to have with kwes. It's a bit more stable.
http://forum.xda-developers.com/showthread.php?t=1602798
Could just be that you had a bad install. It happens. Give kwes ROM a shot. Maybe that'll take care of it. Good luck!

Thanks for the suggestion. I'll go ahead and give that a shot, but I think in actuality something internally might be messed up.

Have you tried a diffrent sim card?

http://forum.xda-developers.com/showthread.php?t=1661342
Random Signal Drops?
I have the some freaking problem, I made the thread above and I've tried a number of fixes and no dice.. Tonight I'm going to try to get a new sim. I've tried a complete reset, Rooting and removing all bloatware, and flashing a custom rom. No dice. Sometimes I drop from 4g to 2g, sometimes I drop all signal. Wifi never drops but I lose all connectivity to mobile data and signal.
Sent from my LG-P999 using XDA

No signal except wifi
Did any of you ever fix this issue? The same exact thing just started happening to me. I had to start using a back up phone to make calls. The only thing that works in wifi and I've verified the APN settings. I even took the sim card and put it another phone, which worked fine. Let me know if you find anything.

r3sidual said:
Did any of you ever fix this issue? The same exact thing just started happening to me. I had to start using a back up phone to make calls. The only thing that works in wifi and I've verified the APN settings. I even took the sim card and put it another phone, which worked fine. Let me know if you find anything.
Click to expand...
Click to collapse
If you want to eliminate the phone as being the issue, has anyone suggested you roll-back to the previous Baseband and try using one of the CM7 ROM's that are out there?
Logic being, if the rollback gives you the same issues you previously had, then it's not a function of the baseband causing the issue.

So I have the G2x with simple mobile and just installed the latest eaglesblood and obviously I cant make any calls and texting works with wifi so is this fixed or should i go back to 2.3.4

KabeDerlin said:
I've had the G2x since it first came out and have always had issues with the signal dropping abruptly. However, since Thrusday, I have lost all signal to the tower and am unable to get it back. I was running EagleBlood's ICS ROM but have since done a full factory reset back to stock and completed an update via the LG Update Tool (I wasn't successful with updating the baseband any other way). Everything appears to be back to factory settings, but I'm not receiving any cell signal still.
Any ideas?
My baseband currently reads: M6600A-SCAUTNZ-2.0.9720T 1 [MAR 2012 10:00:00] MP:TRULGE_08.09.02R_MDM
When I choose Status under the About Phone menu I get the following details:
Network: Unknown
Signal Strength: -93dBm 10 asu (fluxuating slightly)
Mobile Network: GPRS
Service State: Out of service
I am also unable to enable Wifi calling. Basically the only calls/texts I can make are via Google voice on a wireless network.
I'm on the stock 2.3.4 rom currently.
Click to expand...
Click to collapse
If your having the same problem I use to download the app “GetRIL" from the play store and check to see if your base and and RIL match if not download the right RIL within the app hope this helps! Just saying when I changed my RIL I did lose signals once in a while for a couple days I think but now I can't even remember the last time I have
Sent from my LG-P999 using xda app-developers app

I moved from Baltimore to Denver a couple months ago. When I got here my signal was horrible. Data would hardly work, GPS constantly giving out, extremely frustrating. I went to a Tmo store and they gave me a new SIM. Works way better now.

How do I open a SIM network lock? LG-P999

[Q] Nexus S 4G - DATA DROPS

I have been having this problem with both of my Nexus S 4G ever since I got them 2 months ago.
My data drops out frequently and takes a while to get back up. If I have 4G enabled, then I have to manually reconnect it as it will not do it on it's own. This happens inside AND outside. Driving down the road or just standing in one spot.
I've tried all of the radios (basebands) and about 7 different ROMs and versions.
I've refreshed the data profile, PRL, and even tried the roaming Verizon PRL and Hybrid PRL.
Gone back to stock and tried everything from scratch. Still the same problem.
Dallas/Fort Worth Area
Network: Sprint
Baseband: D720SPRKE1
PRL Version: P:40447
I contacted Sprint and they just told me to update the profile & PRL.....
Any suggestions?

I'm not familiar with the CDMA nexus s, but are you able to change APN's? At one point I'd be able to connect to 3g (I have an I9020A), but every minute or so it would drop, so I fixed up the APN's for my carrier.

iv had a few data issues
forcing PRL and account updates has fixed it a couple of times
i'v bought used phones that iv had
to have sprint force update
im on LC1
[altho i cant tell any significant difference here]
and my prl is 61086
[a business account]
im currently on slim
make sure your mobile network
is set to roam
is not set to home only

Am I the only one with this problem? As I'm typing this I lost data but still had 3 bars. I never drop calls but only data.
Help please. This is driving me nuts.
Sent from my Nexus S 4G using xda premium

andrewddickey said:
Am I the only one with this problem?
Click to expand...
Click to collapse
no
i go thru periods of it acting bizarre
try disabling wifi and reboot
this USUALLY fixes mine till wifi is re-enabled
and i drop the sprint connection a few times
riding around
it then fails to re-acquire the IP address.
look in your status and see if you still have an IP
when your data fails
fwiw

I never use Wi-Fi. Ever.
Happens while using both 3G and 4G.
Sent from my Nexus S 4G using xda premium

4G is worthless here...
i dont even bother with the switch
does it do the same thing if you disable 4G?

I almost always have to use 4G (if possible) since 3G speeds are slower than dial-up.
I've tried rebooting and leaving 4G off, and still the same. Even tried going back to Gingerbread.
Sent from my Nexus S 4G using xda premium

andrewddickey said:
I almost always have to use 4G (if possible) since 3G speeds are slower than dial-up.
I've tried rebooting and leaving 4G off, and still the same. Even tried going back to Gingerbread.
Sent from my Nexus S 4G using xda premium
Click to expand...
Click to collapse
If going back to GB doesnt help, maybe it is hardware related?
---===:::Greetzz, jojoost:::===---
Sent from my iPad using Tapatalk HD

This is happening with BOTH of my NS4G.
Possibility that BOTH have hardware defects?

Do a profile and prl update
Hit the thanks button if i helped

R0M CHEF said:
Do a profile and prl update
Hit the thanks button if i helped
Click to expand...
Click to collapse
In the original post, I stated that was one of the things I've done.

have you checked to see if you have an IP address
when data fails?
mine shows "unavailable" when it's wonky
and wont re-aquire till i reboot.
i'v seen this on 2 phones
off and on including on oem 2.3.7
fwiw

andrewddickey said:
Am I the only one with this problem?
Click to expand...
Click to collapse
I have the same problems. From what I understand, its a problem with the hardware. I can confirm that's probably the case, because I've tried many different ROMs (stock, cm, etc...) and they all have the same radio issues (3g/4g and wifi)...

I have an NS4G in the DFW area and haven't seen the issues you're reporting. I'm currently on 4.0.4 with D720SPRLC1 baseband. Maybe I'm just lucky and have a good signal at work and home. It's very rare that I find an area of DFW where I don't get any data signal at all. Not sure what to suggest.

I get random drops too and i hate it. My 3g speeds are fairly good even above 1 mbps. Highest i ever got on 3g was 1.51 mbps

Mine will lose data if I'm in a coverage free area for an extended period of time, when I'm back in range 3g icon will show up just never reconnect. A reboot fixes it

Certain Areas
There are certain areas where I live that data just disappears. Although this is just a network thing I believe. It's weird though when I am driving it's like a 10 second drop and then all is good. Hope you get a solid fix!:victory:

Backup 4g Partition
REMOVED - was a bad idea.

I've actually replaced BOTH of the phones with brand new NS4Gs and they shipped with ICS.
Still the same problem.
This is driving me nuts. I was driving and trying to download Maps for the new phone from the Play Store and it took 6 tries. Kept saying RETRY.
What I've come to believe is happening is:
When 4G connects, 3G disconnects. When 4G drops (which is does frequently), 3G has to reconnect.
***Is there a way to keep 3G "on" in the background while 4G is connected?*** Maybe a way for the radio to transition back and forth?