Dell Venue 3840 HSPA+ lose mobile signal - Dell Venue

Hi guys, so I just got a dell venue3840 hspa+ yesterday for my mother. But after I change sim card, the tablet totally lose mobile signal and I tried many ways I found by the internet.
Cause I lose it by change the sim card, I don't think it is the hardware problem.
Today I will try to flash dell stock rom hopefully can get mobile signal back.
If you have any suggestion please help me, the wifi work well but sometimes I need the 3g outside
Edit: I tried flash rom but nothing change
Please help

Related

[Q] Atrix 4g WiFi not working

Hey guys,
i have the atrix 4g on which i used a simunlock code, so that i coudl put in my sim card from a european carrier, that works great, but the thing is the WiFi stopped working, it just went into a scanning/connecting loop and than it disconnects.
So i factory restored it and figuered out that s soon as i put in a working sim card (one that has cellular reception), the WiFi starts to behave like that and to get it to work i have to factory restore again without a sim card or with a nonworking sim card.
So i tried the motorola support and they said ye hardware issue, send in the phone, my problem however is im in europe right now and i cant really send or get the phone to motorola USA and they totally refuse to send it to an address outside of the US. However im 100% sure its a software issue (both things work for itself, and the thing that even removing the sim card doesnt restore the wifi funcionality makes me think there is some software issue).
So please guys if anyone has an idea how i could fix that i would be really greatful. Btw i tried some of the apps from the market to "fix" wifi (fxr, wififix etc). Fxr said it fixed the wifi bit it still wouldnt connect, the other apps just had the same issue as the stock wireless manager.
Thanks for your time
Did.you use software to unlock it or just a code?
Sent from my MB860 using XDA App
just a code
crnkoj said:
Hey guys,
i have the atrix 4g on which i used a simunlock code, so that i coudl put in my sim card from a european carrier, that works great, but the thing is the WiFi stopped working, it just went into a scanning/connecting loop and than it disconnects.
So i factory restored it and figuered out that s soon as i put in a working sim card (one that has cellular reception), the WiFi starts to behave like that and to get it to work i have to factory restore again without a sim card or with a nonworking sim card.
So i tried the motorola support and they said ye hardware issue, send in the phone, my problem however is im in europe right now and i cant really send or get the phone to motorola USA and they totally refuse to send it to an address outside of the US. However im 100% sure its a software issue (both things work for itself, and the thing that even removing the sim card doesnt restore the wifi funcionality makes me think there is some software issue).
So please guys if anyone has an idea how i could fix that i would be really greatful. Btw i tried some of the apps from the market to "fix" wifi (fxr, wififix etc). Fxr said it fixed the wifi bit it still wouldnt connect, the other apps just had the same issue as the stock wireless manager.
Thanks for your time
Click to expand...
Click to collapse
I have the exact same problem.
My phone is unlocked and can make calls, but WiFi disconnects me almost immediately. The phone also thinks my prepaid sim has H+ connectivity.
When I go back to my AT&T SIM, I have to do a reboot or 2 to get it cleared up, and then WiFi works again.
oh, i see that, i guess its some sort of ATT measure to block nonATT SIM cards, eventho the phone gets simunlock code. But the funny thing is there are a lot of people for whom it all works (like the guys in the unlock thread, using it in canada without a hitch), so im really wondering if this is not just a software glitch (i hope it is and gets fixed witht he 2.3 update..), otherwise my only hope are the devs here to crack wide open the bootloader and put some custom roms on it =/ really a great phone, but all this ATT software crap makes it feel like its an Iphone ...
But uhm still, anyone has any ideas how to try to fix this problem before the updates? =/
crnkoj said:
oh, i see that, i guess its some sort of ATT measure to block nonATT SIM cards, eventho the phone gets simunlock code. But the funny thing is there are a lot of people for whom it all works (like the guys in the unlock thread, using it in canada without a hitch), so im really wondering if this is not just a software glitch (i hope it is and gets fixed witht he 2.3 update..), otherwise my only hope are the devs here to crack wide open the bootloader and put some custom roms on it =/ really a great phone, but all this ATT software crap makes it feel like its an Iphone ...
But uhm still, anyone has any ideas how to try to fix this problem before the updates? =/
Click to expand...
Click to collapse
i also have a friend in saudi arabia who got the unlock code and the wifi is working fine.
only 2 people reported this so far. i guess it could be a hardware problem ? because the other user beside you have this problem even without sim installed " or that what i understood from him "
you can check the other thread too. maybe someone could post something usefull.
hmm i see, where did you find that thread, i was sort of searching for ages and didnt find any issues like that =/
Ye i mean i have this problem without a sim aswell if i dont factory restore the phone, after i do that without a sim card however the WiFi works great...
so i am kind of reluctant to believe it being a hardware issue due to this, sort of software specific issue (at least i think if it would be hardware related, the wifi would start working as soon as i go to airplane mode/take out the sim and a factory reset wouldnt be necessary), or do you think that my theory is rather flawed in thinking that?
and ye the problem is im in europe now and as the reps at motorola support told me, i would have to send the phone to the US for warranty and they would only send it back to an address within the US =/ i will try my luck with the german and uk support site, to see if they could do something for me.
thanks for your time guys tho
hey guys what do you think if i would use this code:
* 2767 * 3855 #
Think before you give this code. This code is used for formatting the original manufacturer. This will delete all files and settings, including internal memory storage. This will also reinstall the phone’s firmware.
To restore it to manufacturer (will it request an unlock code again after that?) cuz i have 2 codes to unlock but the first one worked, so maybe if i woudl try it with the second one than?
I just unlock my atrix with the code from cellunlock, works great and wifi is fine as well. Would like to know where u get the code, and how it turns out if u try reset to default using the combo. Pls update. Ths
Sent from my MB860 using XDA App
I'm having the same issue of not being able to connect to WiFi.
I bought the phone in Las Vegas with an AT&T - pay as you go (no contract).
I bought an unlock code from SwiftUnlocks, and used my Rogers SIM, which appeared to work. I then rooted the phone.
Using the Rogers network, I've been unable to use any sort of data. Phone calls and texts work fine. Then I noticed that my WiFi was not working properly. It would try to obtain an IP address, but couldn't connect. After several reboots, I got the phone to connect to WiFi for a few minutes.
I just did a factory reset, now I'm unable to connect to any network or WiFi to login with MotorBlur, so I can't really use the phone now.
I'm quite frustrated and not sure what else I can do.
Update - after putting the original AT&T SIM card in, and rebooting several times, the WIFI started working again.
I'm still unable to get Data working over the Rogers network in Canada.
Squig80 said:
Update - after putting the original AT&T SIM card in, and rebooting several times, the WIFI started working again.
I'm still unable to get Data working over the Rogers network in Canada.
Click to expand...
Click to collapse
i am getting my phone in few hours, then i am going to order from cellunlock a code and wait for 2 days to get the lock. unless someone has a spare code he can pm me i would be thankful.
the code is IMEI specific, cant give oyujust spare codes
secondly, to get wifi to work you have to remove your sim card, put in the att or a nonworking sim card and do factory reset, than wifi will work. and you can load all the stuff via wifi, and than just put in your working sim and use the phone as a phone +3g data (the 3g data works great for me to be honest)
oh i got my code from swiftunlock but i dont think that matters, they all get it from teh same provider im pretty sure.
and if anyone si wondering t he sbf update did NOT fix my wifi problem. i ahve tried several wifi fix programs and neither worked aswell, the fxr wifi did some stuff that the phone now sees the networks but still cant connect.
this is to update everyone that i got the phone. had an issue about the screen doing lots of flickering. contacted amazon and sent it back.
in the whole process so far i lost around 60$ between importing and exporting the phone. all in all. i will stick with my iphone 4 for now. its a good phone.
but i cant take this sadness all over again if i imported another phone with an issue with it as well. i am too OCD for my own good.
so true what you say, tho im coming form a nokia 6220 classic, a bit older than the iphone 4
Hey GUYS...
I have the same problem.... My Bell Atrix WiFi works great with my Rogers SIM (I had someone unlock it for me), but when I put in my Qatar Qtel SIM, it stops working, and goes into that connect/scan/disconnect loop.
Any solutions?
Search in the dev forym there is a solution for it
crnkoj said:
Search in the dev forym there is a solution for it
Click to expand...
Click to collapse
Thanks. Found it: http://forum.xda-developers.com/showthread.php?t=1077329&highlight=wifi
help mine stoipped working
[16:53] <arana> hi guys i need help with an unlocked atrix 4g att , that was ulocked with att code, then in order to use recovery i got one of the files here http://forum.xda-developers.com/showthread.php?t=1204500
[16:53] <arana> now it is unlocked but wifi is stuck at obtaining ip address
[16:53] <arana> i tried the solutoin here: http://forum.xda-developers.com/showthread.php?t=1077329&highlight=wifi
[16:53] <arana> but still not working
[16:54] <arana> i'll appreciate any help
[16:56] <arana> if possible i would like to put the stock recovery partition if that would fix things, or unlock it with official sbf but i can find it
[16:56] <arana> i used zomgunlock-lite.sbf to unlock
any help?
my carrier is telcel (mexico) and wifi was working fine before i "unlocked" the phone, thank you for any help

[Q] Signal problem

I'm having a problem with getting no signal at all on my streak and wanting to know where to start.
Yesterday it was working fine then this morning it's got no signal wherever i take it. Wondering whether it was my network provider (three uk), i tried someone's orange uk sim card in it and then it works fine. I then put my sim in his phone and that works.
Can a provider block an individual phone from working on their network? Or is the fault in my streak somehow? Still using stock rom, not rooted yet
thanks

[Q] My wireless lost signal after rooted, Please Help

Version
PDA:I9100XWKJ1
PHONE:I9100XKI4
CSC:I9100XXKJ1
My SG2 lost mobile wireless signal can't register with O2,
and this was before I rooted to CF-Root-SGS2_XW_LUX_KJ1-v5.0-CWM5.tar
I been using odin, and try to see which firmware was right for me,
I'm with giffgaff, runs on O2 network,
and before I rooted my original firmware was XXKWJ3
but then I try to root with a XXKWJ3
still no signal and XXKWI3 and XXKWI1
still no signal
can someone help me try to figure this out.
I went out and I have 1 bar, then I went shopping today at Aldis which is about 10 minutes away and I had 4 bars and was registered to O2, and 3G work fine thats on XXKJ1, but before I rooted I have 3 bars inside my home, also I use the sim card on my gf htc hero and works just like it use to work on my SG2, so I been trying to figure this out for 3 days now and I just feel like I did a very big mistake in trying to root my SG2, without backing my original firmware first.
can someone help me please
thank you
Plutonian32 said:
Version
PDA:I9100XWKJ1
PHONE:I9100XKI4
CSC:I9100XXKJ1
My SG2 lost mobile wireless signal can't register with O2,
and this was before I rooted to CF-Root-SGS2_XW_LUX_KJ1-v5.0-CWM5.tar
I been using odin, and try to see which firmware was right for me,
I'm with giffgaff, runs on O2 network,
and before I rooted my original firmware was XXKWJ3
but then I try to root with a XXKWJ3
still no signal and XXKWI3 and XXKWI1
still no signal
can someone help me try to figure this out.
I went out and I have 1 bar, then I went shopping today at Aldis which is about 10 minutes away and I had 4 bars and was registered to O2, and 3G work fine thats on XXKJ1, but before I rooted I have 3 bars inside my home, also I use the sim card on my gf htc hero and works just like it use to work on my SG2, so I been trying to figure this out for 3 days now and I just feel like I did a very big mistake in trying to root my SG2, without backing my original firmware first.
can someone help me please
thank you
Click to expand...
Click to collapse
I thought you fixed this?
I though I did as well, but problem still here
not sure what to do anymore
Plutonian32 said:
I though I did as well, but problem still here
not sure what to do anymore
Click to expand...
Click to collapse
Try some different modems. Modem thread here. Maybe the modem that came with the firmware you flashed is not fully compatible with GiffGaff's (and by extension, O2's) network.
Finally fixed it,
CF-Root-SGS2_XX_OXA_KI3-v4.1-CWM4.tar
used this
and its good and rooted
where did you find this CF-Root-SGS2_XX_OXA_KI3-v4.1-CWM4.tar? can i have a link?
jaibsm said:
where did you find this CF-Root-SGS2_XX_OXA_KI3-v4.1-CWM4.tar? can i have a link?
Click to expand...
Click to collapse
Google.
Sent from my GT-I9100 using XDA App

[Q] ZOPO ZP980 Problem with 3G Network

Hi All,
I just have Zopo ZP980 in my hand. It comes with Build Number 20130818 - 173942
First surprising me that I could not get 3G Network steady.
I have try for something nad somehow after removing battery and sim card, it goes for 3G or H+, however when the signal dropped, it doesn't want to go to 3G again, and it leave only at E.
Several thing has been trial but it is not come out with the result.
Please advice if this is a device issue or Software bug.??
Does it help if I installed with other ROM??
I am really nervous and burn my brain with this issue.
Looking for your further advice or guideline from you friends.
B/regards,
Zopo
Hi friend,
Do you have a solution for this problem.
I have the same problem (((
No change in installing another ROM
I am having ZP980. I facing lots of network issue with 2 sims. Installing another ROM will not help.

Unable to connect to this network at this time, try again later. Please help.

hello everyone, my friend has this phone and he broke the LCD of the phone and we got it replaced with a new one, now there i a problem with the network. it cannot connect to any network. it just says ''unable to connect to network at this time'' i tried flashing the KDZ again but no luck, airplane more reset and thing nothing helps.
This happened to me once too when i broke the same phone and after the replacement it was getting onlu 3G signal (WCDMA) and couldnt connect to any 2G (GSM) network.
Can anyone please help me if anyone knows the issue here please
PS: The IMEI is correct
i don't know the issue, but my guess is, he didn't only brake the screen but some other hw too...

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