Yes, I have read every other thread I could find.
Anyways, I bought a Samsung Captivate on Kijijii. I did test it before I bought it, and it picked up 5 bars, and more importantly, held the 5 bars.
Took it home, and ordered the unlock code, which took a few days to get through. In the meantime I upgraded the phone from 2.2 to 2.3.3. Everything seemed to be fine. Got the unlock code, put in my SIM card, put in the unlock code....everything worked perfectly. It didn't pick up a signal though at first, which is a problem with my carrier(I think). They make you go in and manually search and then register. Which I did. Well, for the longest time it wouldn't find the carrier. I have pretty crappy service, so I went outside, still nothing.....went to work and stood under a cell repeater which gives 5 strong bars to any other phone, and my Captivate would show my carrier, I would register, and it would get 1 bar, and then within 10 seconds, it would lose signal again. All while I was standing right beside the cell repeater.
Not only that, but for some reason it would turn on flight mode, and then when I would try to disable it, it would sit there for about 20 min doing nothing.
I went back to 2.2.....still did the same thing. Went to 2.3.3 again, still the same problem. Tried 3 different modems for my specific model phone, 1 of them would find the network instantly, register within 10 seconds, and then drop signal again and go into enabling flight mode, and being a general pain in the ass to turn off. I would actually have to reboot the phone to be able to search for networks again.
The phone came from Rogers, so I put in my brothers Rogers SIM card, and it instantly found the network, registered and gave me 2 bars without me having to do anything. Except then it began dropping signal, getting signal back...dropping it, getting it back. It is winter here right now, and we do have spotty service, but I have Samsung Fascinate that holds at least 1 bar consistently. Not sure if the antenna strength is better. From what I understand they are more or less the same.
I swapped out my SIM card into a different unlocked phone and got service instantly, and then put another different SIM card into the Captivate, and it had the same problem.
I'm pretty much out of options. I'll try tomorrow to see if I can hold a Rogers signal better, which it hopefully can because I'm thinking of selling it.
But I'm inclined to believe that it might be a software problem. Problem is I have no idea what to do in order to fix it.
Any help would be greatly appreciated. Thanks!
Played around with it a bit more. On 2.3.3 with the KH3 modem installed, it will find the network, then try to connect for 10 min, where it will then say 'unable to connect, please try later.'
Then after clicking again, it will say 'unable to connect, select automatic registration' and then sit there for another 5 min. When it finally comes back, I will click on 'select automatically' and it will say after a couple min, 'registered on network', but won't get signal.
All of this I do with 5 bars service. Or in an area with 5 bars service.
Also, the flight mode constantly comes on, and disables 'mobile networks'....so I can't access it. And its a bit weird that it would do that, since any other android phone that I've had, when I lost service, it would constantly try to connect, not go into flight mode and refuse to come out.
Would it help to install a custom ROM on it? I'm going to try going back to 2.2 and test some more stuff. Problem is the small amount of time I spent with 2.2 last night, the phone would crash everytime I tried searching for networks.
After playing around with it even more, I'm convinced that it says 'error while searching for networks' because the phone constantly jumps back into flight mode.
Even when it does get a signal and registers, the phone jumps back into flight mode within a couple seconds, and bang the signal is gone.
Are you flashing with the sim card in the phone? Or if you are flashing through cwm are you leaving the usb cable plugged in?
Sent from my SGH-I897 using XDA App
holeindalip said:
Are you flashing with the sim card in the phone? Or if you are flashing through cwm are you leaving the usb cable plugged in?
Sent from my SGH-I897 using XDA App
Click to expand...
Click to collapse
I flashed with Odin, WITH the SIM card in the phone. I never bothered to take it out. Would it make a difference?
I actually just flashed back to 2.2 with the SIM card in the phone. It found the network, registered on the network, but then dropped signal and activated flight mode again.
Odin flash goes like this. Put phone into download mode, plug phone into USB, open Odin, put 2.2 file into 'phone' section, make sure re-partition isn't checked, click start, and it does everything it should do. Phone restarts running 2.2.
No open ODIN FIRST!!! And then plug in phone... know your stuff before you give false info.
Sent from my SAMSUNG-SGH-I897 using xda premium
After flashing back to 2.3.3 without the SIM card in the phone, I still get the same problem. But the phone doesn't seem to constantly be going back into flight mode.
Does the modem file change if you go back to 2.2 and back up to 2.3.3? I might have flashed the wrong modem or something.
b-eock said:
No open ODIN FIRST!!! And then plug in phone... know your stuff before you give false info.
Sent from my SAMSUNG-SGH-I897 using xda premium
Click to expand...
Click to collapse
I'm not quite sure what you mean. I've done it both ways, and each time the flash has been successful.
I should mention that baseband version on my status menu says 'I896UXKH2.'
And I'm running 2.3.3.
So I'm not sure if the modem changes when you go back to 2.2. I forgot to check that.
I thought you were suppose to put it in the pda slot not the phone??
Sent from my SAMSUNG-SGH-I897 using XDA App
holeindalip said:
I thought you were suppose to put it in the pda slot not the phone??
Sent from my SAMSUNG-SGH-I897 using XDA App
Click to expand...
Click to collapse
I did actually put it into the PDA slot. Sorry.
Anyways, rooted and installed CM7, installed the KC1 radio, which SHOULD work in Canada on the 850mhz band, and when I search for networks, the only network it finds is Can Rogers Wireless Inc. Up till now it found MTS as well, which is the network I want to use.
I have an MTS(working SIM card) inside the phone. Just bizarre. Could the unlock code not have worked correctly?
Just completely bizarre. I couldn't get any modem to even recognize and find my network of choice, MTS.
So I went back to exactly how the found was when I bought it. Stock 2.2. Going to find out if even a Rogers SIM card will work in it.
There could be two possible things:
1. Unlock code would had messed up.
2. Corrupt IMEI number! Check IMEI number on the box of your phone or below battery and compare with that of the phone (*#06# or settings)...
bindaasathar said:
There could be two possible things:
1. Unlock code would had messed up.
2. Corrupt IMEI number! Check IMEI number on the box of your phone or below battery and compare with that of the phone (*#06# or settings)...
Click to expand...
Click to collapse
+1 you beat me to it!
Sent from my SAMSUNG-SGH-I897 using XDA App
bindaasathar said:
There could be two possible things:
1. Unlock code would had messed up.
2. Corrupt IMEI number! Check IMEI number on the box of your phone or below battery and compare with that of the phone (*#06# or settings)...
Click to expand...
Click to collapse
The IMEI number on the status menu on the phone is identical to the phone under the battery.
So that leaves the unlock code. The guy who gave it to me, cellunlocker.net gave me instructions for locking it to a specific carrier. I tried that with MTS, and it doesn't work. Basically you punch in a code in the dialer, put in the MCC/MNC code, put in the network lock code, and lock it for that carrier. It said it worked successfully, so I have no idea what else went wrong.
The instructions I mentioned above he gave me after I told him the original method didn't work. That method being putting in non-accepted SIM card, and the box pops up asking for network unlock code. I punched the code in he gave me, and it said unlock successful.
Anything else I should do?
I have the similar problem on any 2.1~2.3 stock firmware which I have tried.
I'm using Tmobile now, and the IMEI is correct.
But I only receive 1 bar or no bar signals.
tennyleaz said:
I have the similar problem on any 2.1~2.3 stock firmware which I have tried.
I'm using Tmobile now, and the IMEI is correct.
But I only receive 1 bar or no bar signals.
Click to expand...
Click to collapse
So you unlocked your phone as well? Perhaps the bands are wrong? I know T-mobile uses a different band than other US providers.
In my case, the Captivate uses the 850/1900 bands, which is what Rogers and MTS use.
MTS being the carrier I want to use it on.
Azure1203 said:
The IMEI number on the status menu on the phone is identical to the phone under the battery.
So that leaves the unlock code. The guy who gave it to me, cellunlocker.net gave me instructions for locking it to a specific carrier. I tried that with MTS, and it doesn't work. Basically you punch in a code in the dialer, put in the MCC/MNC code, put in the network lock code, and lock it for that carrier. It said it worked successfully, so I have no idea what else went wrong.
The instructions I mentioned above he gave me after I told him the original method didn't work. That method being putting in non-accepted SIM card, and the box pops up asking for network unlock code. I punched the code in he gave me, and it said unlock successful.
Anything else I should do?
Click to expand...
Click to collapse
I ordered my unlock code from cellunlock.net and it didn't take. I used the Galaxy S Unlock app and it worked fine. When you enter *#7465625# it does show the network lock as off right?
codwif said:
I ordered my unlock code from cellunlock.net and it didn't take. I used the Galaxy S Unlock app and it worked fine. When you enter *#7465625# it does show the network lock as off right?
Click to expand...
Click to collapse
Didn't take as in it said it cannot unlock? Because when I put in the code from cellunlock it said unlock successful.
But I didn't know you could check with that code. I'll do that later. Thanks.
So apparently I had locked the phone to MTS. Put in a Fido SIM card to try something different, and it said enter network unlock code. Entered the unlock code I got, and it said unlock successful.
Now when I type in *#7465625# it says 'off' under all the headings, just like my Fascinate says.
It still holds signal, loses signal though with Fido. I have no idea if that is a problem or what is going on. It'll get 2 bars, or about -99dbm, 5asu, and then suddenly drop it. Get it back again....drop it after 10 seconds.
Apparently flight mode is going on, going off, going on, going off....which is apparently why it loses signal, and gets it back again.
Hi,
my girlfriends phone just suddenly stopped working. It stucked at Samsung Logo. Also recovery did not work anymore. So i decided to try flashing it. Coming from the HTC Desire is first had to look how to use Odin and how to flash Samsung devices.
Anyway, i found a new stock Rom from somewhere on this site droidangel.blogspot_com from February 2012, and i flashed it via Odin. The phone booted again, but i am unable to get any simcard to work. I tried several stock Roms, but all the time the same problem: Flight Mode is off, but i cannot get any reception. The menu option "Mobile Networks" is grayed out so i cannot enter it. In "About Phone/Status" is says everything just unknown. Signal strength 0db 0asu, and Service State either Radio Off or Out of Service. When i turn flight mode on, and then off again it just turn it on again after some seconds.
Any ideas what i could do?
can you access your IEMI number *#06# (don't post it) is the number still there or all 0's?
A pop-up comes with "IMEI"... thats all, no imei is shown, only "IMEI" and the ok button.
Also when i try to turn flight mode off the phone reboots suddenly and than flight mode is off, but still it behaves as if there is no simcard inserted.
Hi Team,
I have heard lot about this forum and hope to get some gud suggestions from you guys.
I bought my Samsung Galaxy ace GT-S5830 with android 2.3.6 Gingerbread OS 6 months back but slowly I started facing few problems when my friends noticed and told me that your phone sometimes says switch off.
I also realized that sometimes even if the airtel network is there still i get an error message that mobile network not available I had to switch off the phone to get it normal.
Again people text me but it goes on pending and gets delivered after hours. I showed this problem to the service center they flashed my mobile but the problem persist I also tried changing my sim card but still all in vain. Now i am literally fed up with this phone.
Please assist me I dont know wat to do :crying:
Note: The phone is not rooted.
Thank you
err, are you sure this is because of the phone..? not the network..? because i never face any of the problems you mention..
may be you should try flashing stock rom with newest baseband for your region, find it on sammobile..
musf said:
err, are you sure this is because of the phone..? not the network..? because i never face any of the problems you mention..
may be you should try flashing stock rom with newest baseband for your region, find it on sammobile..
Click to expand...
Click to collapse
He said the service centre guys reflashed the rom. but agree that the sms thing could be network problem.
Faulty battery/pins (Switch offs)
Faulty hardware (Antenna?)
That's all I can identify.
Hi Guys !!!
Thanks for sharing your views
@demiorkan
The mobile automatically does not gets switched off but i need to do it manually as it keeps on prompting the error message "Mobile network not available" though I can see full network on my mobile.
I would really appreciate if I get any suggestions from your side.
Let me know if any more information is required.
If you dont mind you could try flashing another stock rom and see if that works out. If it did not, then it's probably a hardware problem OR the network (as mentioned). Try your SIM card on another phone as well, that should prove if there is problem with the network or not.
Mostly it might be a firmware problem. Service center might not have flashed a new firmware but simply wiped and gave back. (can't be sure on that). So I recommend on using ODIN and flash new firmware. Google is your best friend on this.
Secondly about the network, Turn on flight mode once and turn it off, you'll get the signal. You can even do some debugging by going to the testing menu (*#*#4636#*#*) and toggle the radio and the preferred connection type and stuff. But if the place where you are is such that you get low signal, then don't try any things on phone as it's ultimately the network problem. Trust Me, the place where I stay, I rarely get proper reception and Even I'm on the same network. Flight Mode trick saves the unnecessary reboot.
Hi guys,
I have a LG Optimus 4x HD with stock rom (Jelly bean). About three weeks ago, I suddenly lost my network connection and it looked like my phone didn't recognize my SIM card. I put my battery and my Sim out and in my phone, but that didn't help. I tried many SIM cards and they work excellent on my other phone. When I turn my device on It just boots up and doesn't ask for my pin code at all. I see no difference when my SIM card is in or out my device. However, it does recognize my SD card, so I think there is a problem with the software? On the lock screen I just see the message ''no service'' and at the top I see this (first pic). When I try to dial someone it says ''reorganization of internal processes. Try it later.''. I read on a forum that I had to go to ''mobile networks'' in settings, but that isn't possible (pic 2).I also tried to put some paper between my sim card and my sim card slot but that didn't work either. Does someone have this problem too or is there somebody who can help me to solve this problem? Your help would be greatly appreciated.
Tob1234 said:
Hi guys,
I have a LG Optimus 4x HD with stock rom (Jelly bean). About three weeks ago, I suddenly lost my network connection and it looked like my phone didn't recognize my SIM card. I put my battery and my Sim out and in my phone, but that didn't help. I tried many SIM cards and they work excellent on my other phone. When I turn my device on It just boots up and doesn't ask for my pin code at all. I see no difference when my SIM card is in or out my device. However, it does recognize my SD card, so I think there is a problem with the software? On the lock screen I just see the message ''no service'' and at the top I see this (first pic). When I try to dial someone it says ''reorganization of internal processes. Try it later.''. I read on a forum that I had to go to ''mobile networks'' in settings, but that isn't possible (pic 2).I also tried to put some paper between my sim card and my sim card slot but that didn't work either. Does someone have this problem too or is there somebody who can help me to solve this problem? Your help would be greatly appreciated.
Click to expand...
Click to collapse
I discovered that my phone doesn't have an IMEI and IMEI SV code anymore. It also doesn't have an baseband version. Do you guys know this caused the lost of my network connection and does anyone know how I can recover my IMEI number? Finally I managed to enter the mobile networks in settings by do a long tap on the data icon in the notification center. I hope someone can help me.
I have the same problem as you. With every restart the phone is unable to read the sim card. Also the baseband is shown as unknown, and I don't have imei no. The solution for me is to remove the battery, and put the phone in the refrigerator for 10 minutes.(yes in the refrigerator The phone is getting very hot when is searching for network and to have it really cool helps apparently. Try it yourself to see if it does the job for you and let us know.
dracool84 said:
I have the same problem as you. With every restart the phone is unable to read the sim card. Also the baseband is shown as unknown, and I don't have imei no. The solution for me is to remove the battery, and put the phone in the refrigerator for 10 minutes.(yes in the refrigerator The phone is getting very hot when is searching for network and to have it really cool helps apparently. Try it yourself to see if it does the job for you and let us know.
Click to expand...
Click to collapse
Thanks for your reply! This morning, my phone finally asked for the first time for the sim password and I finally got a signal. I got my IMEI and my baseband number back. Unfortunately, after an hour or so I tried to send a sms and I wasn't able to send it. I got the error no USIM or so. The IMEI and Baseband number disappeared agian. I turned flightmode on and of and I didn't get a signal again... New today was that I am now unable to connect to multiple wifi networks too. Now my WI-FI MAC-adress is 00:00:00:00:00:00. I already lost the phone and I now also lost the smart part of my smartphone... I also tried to put my phone in the refrigerator but sadly it didn't help. I think I have to buy a new phone....
Tob1234 said:
Hi guys,
I have a LG Optimus 4x HD with stock rom (Jelly bean). About three weeks ago, I suddenly lost my network connection and it looked like my phone didn't recognize my SIM card. I put my battery and my Sim out and in my phone, but that didn't help. I tried many SIM cards and they work excellent on my other phone. When I turn my device on It just boots up and doesn't ask for my pin code at all. I see no difference when my SIM card is in or out my device. However, it does recognize my SD card, so I think there is a problem with the software? On the lock screen I just see the message ''no service'' and at the top I see this (first pic). When I try to dial someone it says ''reorganization of internal processes. Try it later.''. I read on a forum that I had to go to ''mobile networks'' in settings, but that isn't possible (pic 2).I also tried to put some paper between my sim card and my sim card slot but that didn't work either. Does someone have this problem too or is there somebody who can help me to solve this problem? Your help would be greatly appreciated.
Click to expand...
Click to collapse
Sorry to say that "It's time to say goodbye"
I got same problem with you and try all kind of possibility. Here is final verdicts:
- Some phone repairers I know said It's the encrypted baseband partition is damaged, unless you have backup of that, it's a no-go
- I've tried to reflash the phone and it will stuck at 10%, you have to push really hard at some point at the back to make is flashable. After that, the signal back on with baseband and IMEI.... but only for a few restarts it will be gone
Hi blbterminator,
I already said goodbye to my p880 (has been replaced for the G3), but thanks for your reply. Now it's clear for me that's it's a hardware issue.
Maybe do you know if this problem only affects the lg p880 or other brands or models too?
Many thanks!
klbterminator said:
Sorry to say that "It's time to say goodbye"
I got same problem with you and try all kind of possibility. Here is final verdicts:
- Some phone repairers I know said It's the encrypted baseband partition is damaged, unless you have backup of that, it's a no-go
- I've tried to reflash the phone and it will stuck at 10%, you have to push really hard at some point at the back to make is flashable. After that, the signal back on with baseband and IMEI.... but only for a few restarts it will be gone
Click to expand...
Click to collapse