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[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.
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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
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Click to collapse
That is what I thought, thanks!

Dropped Connection to Network Problem

my phone will drop connection and then not reconnect. no voice, no data. (wifi still works)
what I've tried:
1. Different radios/firmware
2. different roms
3. different preferred network types
4. switching airplane mode on and off
what I haven't tried:
1. different sim
2. calling tmobile for suggestions
What else could cause this problem?

it could be a hardware issue

Hello,
I have the same issue than you !
I am facing issues such as call drop and no 3G data connection in some area in my region since I have 5 signal bar and H letter displayed (HSDPA connection)...
I have found a workaround consisting in:
1 - Switching to GSM Only mode (2G Only)
2 - Desabling Mobile Data Connection
Then it works, I can pass and receive voice call ...
Regards,
Nino

I'm new to the Sensation and having the exact same issue.
Followed the stickies in the Dev section to S-OFF, root and bypass SIM lock and then once the SIM card is inserted I get only GSM and no data.
If you use *#*#4636#*#* in the Dialer and go to Phone Information do you notice that it always switches to WCDMA preferred? I change to GSM/CDMA auto PRL like all my other Android devices (on Rogers Wireless) and it disconnects, reconnects but only for GSM and no data. It sometimes says it's connected to EDGE or HSPA but no icon at the top right and then it reverts back to GSM.
I have also tried flashing virtually every firmware, ensuring that the radio and RILs match (I had an HTC Desire Z so the HTC phones are not new to me entirely). I don't know what else to do. I tried a Bell SIM card and tried all of the same options to no avail.
I really hope someone can figure this out. I don't want to have destroyed a phone that I just bought for my wife. Her Atrix broke and I purchased that outright as well, so this is really killing my wallet. I've been through about 10 Android devices and I wouldn't say I'm a newb, but I really do feel like one right now. This sucks!

Get a new sim from tmo if it's over 2 phones old.
Sent from my HTC Sensation 4G with Beats Audio using Tapatalk

mrbkkt1 said:
Get a new sim from tmo if it's over 2 phones old.
Sent from my HTC Sensation 4G with Beats Audio using Tapatalk
Click to expand...
Click to collapse
Exactly. Although I got it before I saw your post, you were completely correct.

definitely try a new sim card.
bongd said:
I'm new to the Sensation and having the exact same issue.
Followed the stickies in the Dev section to S-OFF, root and bypass SIM lock and then once the SIM card is inserted I get only GSM and no data.
If you use *#*#4636#*#* in the Dialer and go to Phone Information do you notice that it always switches to WCDMA preferred? I change to GSM/CDMA auto PRL like all my other Android devices (on Rogers Wireless) and it disconnects, reconnects but only for GSM and no data. It sometimes says it's connected to EDGE or HSPA but no icon at the top right and then it reverts back to GSM.
I have also tried flashing virtually every firmware, ensuring that the radio and RILs match (I had an HTC Desire Z so the HTC phones are not new to me entirely). I don't know what else to do. I tried a Bell SIM card and tried all of the same options to no avail.
I really hope someone can figure this out. I don't want to have destroyed a phone that I just bought for my wife. Her Atrix broke and I purchased that outright as well, so this is really killing my wallet. I've been through about 10 Android devices and I wouldn't say I'm a newb, but I really do feel like one right now. This sucks!
Click to expand...
Click to collapse

I've tried 5 different SIMs now. It's not a SIM issue. The other poster has a different issue but mine's identical to the OP's.

bongd said:
I've tried 5 different SIMs now. It's not a SIM issue. The other poster has a different issue but mine's identical to the OP's.
Click to expand...
Click to collapse
have you tried allowing data roaming in settings? I'm sure you have...

stonew5082 said:
have you tried allowing data roaming in settings? I'm sure you have...
Click to expand...
Click to collapse
Haha yup, thanks though! I know, it could always be something so tiny and stupid too, eh.
Someone posted in my own thread and said to do the following. Will by trying it once I get home. Could the OP please try this and report back? I sure hope it works!
johnerz said:
first open the dialer
Type *#*#4636#*#*
select phone info
look for the only drop down box - hit it - choose wcdma prefered - hit back 3 times
Go to menu settings woreless and networks
hit mobile network - it need to be ticked
hit mobile networkS hit APN or Access point names - hit the menu button - choose reset to defaults
go back to mobile networks - choose network mode, select wcdma only - look for the 3G or h sign when it shows go back and choose gsm/wcdma auto
if that fails do a manual net work selection - choose your networks 3G option
Click to expand...
Click to collapse

bongd said:
Haha yup, thanks though! I know, it could always be something so tiny and stupid too, eh.
Someone posted in my own thread and said to do the following. Will by trying it once I get home. Could the OP please try this and report back? I sure hope it works!
Click to expand...
Click to collapse
I did try every setting in there. The new sim card fixed it! So I guess our problems are different.

[Q] Galaxy S3 I535 No Service After KitKat Flash (4.4.4)

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!

[Completed] Noob in need of radio/modem flashing information

Hello,
I recently purchased a note 5 duos SM-N9208 from Taiwan. I was led to believe that the device was unlocked GSM, but had EV-DO capabilities. My understanding was that this would work on Verizon's network, because it had both radio chips inside. I was told by Verizon that "there is no approved way" for them to get me up and running on their network. The tech made a point of saying there is a difference between approved, and no way. This leads me to believe that something can be done. I'm wondering if someone would be kind enough to help me out. Phone is running original Rom, unrooted, and is basically useless to me right now, as I'm desperately clinging on to my unlimited data with Verizon. Is it possible to root the device, and flash the modem with Verizon note 5 baseband info? Any help anyone can offer would be very much appreciated.

XDA Visitor said:
Hello,
I recently purchased a note 5 duos SM-N9208 from Taiwan. I was led to believe that the device was unlocked GSM, but had EV-DO capabilities. My understanding was that this would work on Verizon's network, because it had both radio chips inside. I was told by Verizon that "there is no approved way" for them to get me up and running on their network. The tech made a point of saying there is a difference between approved, and no way. This leads me to believe that something can be done. I'm wondering if someone would be kind enough to help me out. Phone is running original Rom, unrooted, and is basically useless to me right now, as I'm desperately clinging on to my unlimited data with Verizon. Is it possible to root the device, and flash the modem with Verizon note 5 baseband info? Any help anyone can offer would be very much appreciated.
Click to expand...
Click to collapse
Hi, and welcome to XDA!
When I looked up the specs on the Note 5 Duos, unfortunately it says nothing about CDMA. Having both "radio chips inside" can be taken two ways, in this case, this phone has the capability to handle two GSM carriers (and in this case, like most dual-sim phones, only the first SIM can do 3G/4G/LTE speeds).
Network Technology GSM / HSPA / LTE
2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G bands HSDPA 850 / 1900 / 2100
4G bands LTE
Speed HSPA 42.2/5.76 Mbps, LTE
GPRS Yes
EDGE Yes
Click to expand...
Click to collapse
It seems the only option (if you want to use this phone), is to join a GSM carrier like AT&T, T-Mobile, or one of their MVNO's (like MetroPCS).
Hope this helps.

joel.maxuel said:
Hi, and welcome to XDA!
It seems the only option (if you want to use this phone), is to join a GSM carrier like AT&T, T-Mobile, or one of their MVNO's (like MetroPCS).
Hope this helps.
Click to expand...
Click to collapse
Thank you, Joel! I'm excited to learn as much as possible from tgis forum. I actually changed over to T-Mobile, and have been good for the most part. The problem i'm having now is related to finding a way to flash the radio to all of their Rf's. I rooted, and attempted to flash the modem and bootloader from N920T, but it failed. I am still having a hard timr understanding why the identical hardware will not accept firmware from different model numbers. Again, very inexperienced, so it may be something very obvious i dont know about. If could offer any assistance, or provide and thread links that may be useful, i wpuld very grateful. Ive been searching nonstop, reading, and still cant seem to find a way.

Rockstah said:
Thank you, Joel! I'm excited to learn as much as possible from tgis forum. I actually changed over to T-Mobile, and have been good for the most part. The problem i'm having now is related to finding a way to flash the radio to all of their Rf's. I rooted, and attempted to flash the modem and bootloader from N920T, but it failed. I am still having a hard timr understanding why the identical hardware will not accept firmware from different model numbers. Again, very inexperienced, so it may be something very obvious i dont know about. If could offer any assistance, or provide and thread links that may be useful, i wpuld very grateful. Ive been searching nonstop, reading, and still cant seem to find a way.
Click to expand...
Click to collapse
Well, the hardware (particularly the modem) is not compatible, hance the failed install. You are lucky it cancelled out as you could have had worse problems on your hands.
The way i see it, you will have to wait for other regions for the Note 5 Duos to open up before you get flashing options. I would even question the need for that, if you get a decent range of bands with T-Mo (I am assuming you can get 4G).
If you want to explore further anyway, please check out this thread:
> Samsung Galaxy Note5 > Galaxy Note5 Q&A, Help & Troubleshooting > [Help Thread][Galaxy Note5] Ask Any Question, Noob Friendly
Hope this helps.

joel.maxuel said:
Hope this helps.
Click to expand...
Click to collapse
It did, thank you! I get decent service (including LTE) almost everywhere. Problem is, once I get to my.house, I go completely out of service. No call.I no text. It wouldn't be a big deal, but the Taiwanese phone doesn't have a way to turn WiFi calling.

Rockstah said:
It did, thank you! I get decent service (including LTE) almost everywhere. Problem is, once I get to my.house, I go completely out of service. No call.I no text. It wouldn't be a big deal, but the Taiwanese phone doesn't have a way to turn WiFi calling.
Click to expand...
Click to collapse
Aha. That and no sign of the 700mHz band (which may not be part of your phone anyway, not just hidden by the current firmware).
Since the firmware would need deep support of Wifi Calling (or VoLTE), as in more than just an App, I am afraid you will have to wait until the Duos releases into an area with that support in their firmware (and hope that, that area's firmware doesn't disable a frequency you use).
Makes scraping all the lead paint[*] off the house the more manageable task, doesn't it?
[*] I really don't know if your house does indeed have lead paint. I am assuming it's coated in something metal, or concrete, which avoids typically high frequency radio waves from entering. I never had that problem with my house (which may be strange, since it was built in the 40's), but maybe creating ways to boost the existing signal may be in order instead.

Network goes out randomly

Hey guys I was gifted a (used) M8. It came with the lastest official CM12.1, everything unlocked. I have found that network will stop working randomly and switching airplane mode on and off will do the trick. Thing is, I have missed important calls because of this. I've already researched the subject and no one seems to have a solution. This post is my last attempt at fixing this issue. Only details I can give you is I am using a Verizon phone on MetroPCS, and I suppose that has something to do with it. Also, is there any (preferably free) way to get my phone to automatically switch airplane mode on and off every 15 minutes or so when the screen is off?Thanks in advance!

mhrf.90 said:
Hey guys I was gifted a (used) M8. It came with the lastest official CM12.1, everything unlocked. I have found that network will stop working randomly and switching airplane mode on and off will do the trick. Thing is, I have missed important calls because of this. I've already researched the subject and no one seems to have a solution. This post is my last attempt at fixing this issue. Only details I can give you is I am using a Verizon phone on MetroPCS, and I suppose that has something to do with it. Also, is there any (preferably free) way to get my phone to automatically switch airplane mode on and off every 15 minutes or so when the screen is off?Thanks in advance!
Click to expand...
Click to collapse
Have you tried using a stock ROM or changing radios? Is your firmware up to date?
Can't speak from experience from using a cm12 ROM, but generally stock usually works better with signal over AOSP, especially if you're in a poor signal area.

I used to have similar problems, turned out WCDMA and LTE bands that my carrier used were disabled.
For my case (T-Mobile), I simply activated WCDMA 2 & 4 and LTE 2 & 4 and now have signal almost 24/7.
You can do this with CDMA tool since your phone is Verizon branded.
As for automatically cycling Airplane Mode, I'd imagine Tasker can do that.

dbs25 said:
I used to have similar problems, turned out WCDMA and LTE bands that my carrier used were disabled.
For my case (T-Mobile), I simply activated WCDMA 2 & 4 and LTE 2 & 4 and now have signal almost 24/7.
You can do this with CDMA tool since your phone is Verizon branded.
As for automatically cycling Airplane Mode, I'd imagine Tasker can do that.
Click to expand...
Click to collapse
How about page plus which is verizon network. My text and calls work but no data and APN doesnt make a difference ROM wolla gpe 6.1 MM

Phillyfinest89 said:
How about page plus which is verizon network. My text and calls work but no data and APN doesnt make a difference ROM wolla gpe 6.1 MM
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Click to collapse
Three threads and you still ask here too? Please stick to one thread bud. As soon as I see three threads by the same user with the same issue I automatically skip them.
Sent from my HTC6545LVW using Tapatalk

Sorry