[Q] Won't connect to Operator Network - Optimus One, P500, V Q&A, Help & Troubleshooting

I just flashed for the first time and everything seemed fine,
till (after flashing the Gapps) I noticed my phone won't connect to a mobile network.
WiFi is working, only Mobile Network is defunct.
I tried two different SIMs, both worked on other devices but not on this.
I may be wrong, but I don't think a locked SIM is my problem, since I don't see any SIM-with-an-exclamation icon icon as described in other posts.
Detailed Description:
Lock-screen shows the text "(No Service)".
When trying to search for a network in Settings > Mobile Networks > Network Operators, it says "Error while searching for networks".
Additional Info:
Device: LG P-500.
Flashing toolchain: Gingerbreak; ROM Manager + CWM.
Flashed: Stable CM7.2 from CM's site;
Gapps from Goo.im.
Baseband: P500-M76XX-V10f-FEB-18-2011-XX.
(Taken by LGMDP AFTER flashing to CM7)
P.S. Before posting I looked for similar posts, but could only find ones dealing with the New Baseband (e.g. http://forum.xda-developers.com/sho...&highlight=error+while+searching+for+networks). As I have the Old Baseband and CM7.2 requires the Old Baseband (so it seems), they seemed irrelevant.
Thanks in advance!

Cm needs new baseband. There's your problem.
As a substitute, chech the cm7.2 development thread in the original work category. The first post provides a temporarely fix.
Sent from my LG-P500 using xda premium

Mine got strange problem:
After flashing ROM PowerGB X 1.0, everything works fine (sms receive & send, Internet via mobile / Wifi, calling outside) but only one problem, I cannot receive call! When I call from outside to my P500 no, the network always says busy or I've requested to block my phone from outside.
I've check all settings regarding call blocking, but all is normal.

Thanks, thatnextdoorboy!
I've updated to the new baseband (using the LGMDP guide) and it now works great!
I think that this guide is a bit unclear, reading it it seems that only CM7.2 Nightlies require the new, while the Stable version doesn't.
Thanks again! (You're actually pretty nice to newbies around here...)

Related

LeeDroid ROM and wi-fi issue

Hi there,
I followed the instructions from http://forum.xda-developers.com/showthread.php?t=842802 and managed to put the custom ROM.
However, I cannot use Wireless anymore. It get connected but simply doesn't load anything.
I cannot use Internet pass-through anymore as well.
Everything else seems fine.
About info:
Android version: 2.2
Baseband: 12.28b.60.140eU_26.03.02.26_;
Kernel: 2.6.32-LeeDroid...
Build number: 1.37.921.1 CL277230 release-keys
Software number: 1.37.921.1
Could anyone advise me how to proceed now?
UPDATE:
In the meantime I did the recovery, went back to the original settings. Wi-Fi and Internet pass-through worked perfrectly.
I started the process again.
This time I falshed the Radio before I flashed the ROM and now I'm on:
Baseband: 12.28b.60.140fU_26.04.02.17_M2;
Wi-fi and Internet-pass worked fine with old ROM and new Radio.
I did the Kernel flash, but the problem with wireless remained.
Any ideas, please?
I'm quite desperate now. I like the ROM (e.g. camera works perfectly) but not having Wi-Fi...
Thx a lot!!
im having the exact same problem :s did you by any chance find a fix for this ?
It's odd, I've followed the same procedure and haven't had any problems.
When you're connected can you try looking in Settings > Wireless & Networks > Wifi Settings -
Click on your router and you'll confirm if you're connected, chanel, strength, speed, etc. Useful stats.
Click on Menu > Advanced
Here you can see your IP address confirm it's received an address from your router, plus you can change wifi performance, increasing more power (just to test)
Sorry can't think of anything else to check. Like me I'm sure there are lots of users with this ROM who've flashed the same radio, ROM and kernal, and it's working fine. Did you check the 'checksums' of the files you flashed to double check they're correct?
Try posting on Lee's pages in the Development forum, perhaps he can give you better advice.
Good luck.

[Resolved] [Q] HTC CM7 Radio

Hello everyone, I'm new to xda but not new to rooting and stuff
However I need help
I rooted my Wildfire a while ago..and then i installed some font...which messed my stock rom
receving no technical support over email or service centre, i manually flashed cm7
...
all goinig well but there is no 3g connection at all...the phone keeps on rebooting when i turn on 3g....and 2g is incredibly slow!!!!!!!!!!
I hvnt s off 'ed my wf but hv rooted it successfully..I'd like to know if s off is needed for radio flash...pl help me
How should I s-off my rooted wf??
Hello, i solved this issue.. I was on the radio 3.35.20.10 which is the newest. I flashed the latest rc1 cm7.2. Yes (3g and H) mobile network works flawlessly.. changing a few type of internet build prop values of cm7.2 will lead to rebooting when turning on mobile data
I won't be of any help but I have the same problem: I can't remember when I have noticed it the first time - my Wildfire keeps on rebooting if I switch to 3G.
Initially I thought that one of the different modes (2g/3g only, 2g or 3g etc.) would cause the problem but I have tried everything without any success.
If I find the time I'll probably try a newer nightly to see if this will help.
AFAIK I'm on the newest radio (flashed it a while back due to the well known radio problem).
Anyone with a helpful hint?
ontheflames said:
Hello, i solved this issue.. I was on the radio 3.35.20.10 which is the newest. I flashed the latest rc1 cm7.2. Yes (3g and H) mobile network works flawlessly.. changing a few type of internet build prop values of cm7.2 will lead to rebooting when turning on mobile data
Click to expand...
Click to collapse
Hm, I'm not sure about your solution - could you be a bit more specific? I've already done a lot of things to get rid of the problem - including flashing newer versions of CM7 - currently I'm on the 20120420 nightly. Release date for the newest RC1 is 20120314 if I'm correct - so it looks that this didn't solve my problem.
Furthermore I flashed the radio again (inspired by this thread) - without any help regarding the bootloops. I'm really close to do an RUU update - but I usually rely on good old traditional computer wisdom: "never change a running system" XD
If someone with a bit more understanding of the changes in build.prop could give hints what (which values) exactly could be the reason for the problem this would be really helpful.

[Q] Stable ROM? Baseband problems?

First of all, hello! Since it's my first post here, and I am new to Android, I am sorry if I fail to provide all the needed information. Let's cut to the chase then!
I have an LG Optimus 3D (p920) and I am struggling to find a good ROM.
The one I have now works, but it is very slow (I only have about 60 mb RAM left, I have to keep killing processes, but they come right back).
The details are:
Model Number:
LG-P920
Android version:
2.3.5
Baseband version:
L6260_MODEM_SIC_01.1042.00
Kernel version:
2.6.35.7+
Build Number:
GRJ90
Software Version:
LGP920-V21e-Apr-19-2012
I have been lurking around the forums in search for other ROMs, and I tried some of them, but most got me to the same problem.
I tried CyanogenMod and a couple of other ROMs and this is what happens:
Using CyanogenMod I get a connection to the provider but it goes out randomly and, although it still shows me I got a signal, I am unable to make or receive calls.
With other ROMs, the problem persists, I am unable to connect to my mobile network, this time being represented just by the crossed signal bars.
I have just tried ThiaiZO3DV2.7,1GB, which lead to no connection.
Also, I tried JellyBam, but I am unable to complete even the first configuration (After completing it, the phone asks for a reboot - if I manage to get that far) and then keeps restarting every time it boots.
I've read around that this might be a baseband problem, I downloaded GetRil on all the softwares I tried. I allow it to have superuser privileges, I download and install the recommended baseband, reboot, still no network connection.
Any help is greatly appreciated!
Thank you for your time!
Regards, BrreaKer.
Later Edit: The ROM I am using now is a custom one, but I can't seem to remember where I got it. When I first bought the phone, it had Android 3.1.3
Also, I haven't got the slightest idea what's with Kernels ( I know what a kernel is, as a base idea, but nothing in detail )
I have a lot of things to learn about Android, and I figured this would be the best place to seek guidance.

[Q] Cannot Connect to Mobile Network.

Hi, this is my first post here, so apologies if I'm doing anything wrong.
I recently flashed the Jellybam 10.3 rom by following instructions from one of the admins on the site. But that left me not being able to make/receive calls or texts, even though the status bar showed that I had signal. When I tried to search for mobile networks in the phone's settings, I was left with "Error whilst scanning for networks". So I searched around for a little bit and tried this fix: http://forum.xda-developers.com/showthread.php?t=2348361 flashing the topmost file (that was the appropriate one after using the terminal command in the first post.) After this my network, EE, shows up when scanning for networks like before. But when I try and connect to it, the phone just says please wait for a while and then says that it can't connect to the network. I am now left with no signal. I have tried full wiping, flashing different ROMs and restoring previous backups, but to no avail. I am really stuck as for what to do now. I'll provide some information which may be of use here (from the About Phone section of the settings), but please tell me if you need anymore.
ROM: Jellybam v10.3
Android Version: 4.3
Kernel: 3.0.97-Sultan-Kernel-r32 Sultan #1
Recovery: 4EXT 10.0.0.5 RC9
Any help would be appreciated, thanks.
TapeState said:
Hi, this is my first post here, so apologies if I'm doing anything wrong.
I recently flashed the Jellybam 10.3 rom by following instructions from one of the admins on the site. But that left me not being able to make/receive calls or texts, even though the status bar showed that I had signal. When I tried to search for mobile networks in the phone's settings, I was left with "Error whilst scanning for networks". So I searched around for a little bit and tried this fix: http://forum.xda-developers.com/showthread.php?t=2348361 flashing the topmost file (that was the appropriate one after using the terminal command in the first post.) After this my network, EE, shows up when scanning for networks like before. But when I try and connect to it, the phone just says please wait for a while and then says that it can't connect to the network. I am now left with no signal. I have tried full wiping, flashing different ROMs and restoring previous backups, but to no avail. I am really stuck as for what to do now. I'll provide some information which may be of use here (from the About Phone section of the settings), but please tell me if you need anymore.
ROM: Jellybam v10.3
Android Version: 4.3
Kernel: 3.0.97-Sultan-Kernel-r32 Sultan #1
Recovery: 4EXT 10.0.0.5 RC9
Any help would be appreciated, thanks.
Click to expand...
Click to collapse
i can give you an idea
type in dialer *#*#4636#*#*
go to phone info(if i remember well)
and change from there the network(it has some options)
best wishes
rzr86 said:
i can give you an idea
type in dialer *#*#4636#*#*
go to phone info(if i remember well)
and change from there the network(it has some options)
best wishes
Click to expand...
Click to collapse
Thanks for the suggestion. I tried that menu, but nothing seems to make any difference. While I was out earlier today, signal appeared on the status bar. But when I tried connecting to the EE network in settings, the signal went and the same problem persisted. Although, I have found out that I can use wifi and mobile intenet (3G) but still no calls/texts.

[SOLVED] No network? bb is correct...

Hi everyone,
I have just started playing with ROMS etc. and its turned my sluggish old-looking p500 into something beautiful,
The only issue is I just can't seem to get the network to work. Wifi is fine, but no service with the SIM card I put in there. I don't even get asked to put a SIM code or anything.
I have spent the last few hours desperately trying to get baseband v20 on my phone since LGMDP was not recognizing my phone, and I finally got it to work, expecting miraculous results, but alas! nothing! Anyone have any idea what I can do?
Specifically I have installed this rom: [DEV][ROM][4.4.2][CM11] KITKAT for LG-P500 [WIP][VER-12 OTA]
but have not updated through OTA yet.
And i flashed v20g using a stock version (one which didn't come with my phone). I guess I will try flashing a stock which depends on the new bb and see if that works...
Also, I don't know if this matters, but I got the phone in canada a few years ago and am now putting a UK SIM in there.
Thank you so much for any help you can give!!!! I really want to get this to work!
-A
extra words:
Also, I deleted a bunch of stuff on my SD and know very little about how SIMs work, so if I have the "wrong kind" of SIM or if I deleted something (I have it all backed up) that I need to put back on the SD card to make this work, please let me know!
Thanks!
-A
superdupes said:
Hi everyone,
I have just started playing with ROMS etc. and its turned my sluggish old-looking p500 into something beautiful,
The only issue is I just can't seem to get the network to work. Wifi is fine, but no service with the SIM card I put in there. I don't even get asked to put a SIM code or anything.
I have spent the last few hours desperately trying to get baseband v20 on my phone since LGMDP was not recognizing my phone, and I finally got it to work, expecting miraculous results, but alas! nothing! Anyone have any idea what I can do?
Specifically I have installed this rom: [DEV][ROM][4.4.2][CM11] KITKAT for LG-P500 [WIP][VER-12 OTA]
but have not updated through OTA yet.
And i flashed v20g using a stock version (one which didn't come with my phone). I guess I will try flashing a stock which depends on the new bb and see if that works...
Also, I don't know if this matters, but I got the phone in canada a few years ago and am now putting a UK SIM in there.
Thank you so much for any help you can give!!!! I really want to get this to work!
-A
Click to expand...
Click to collapse
If baseband is correct, then check your APN ( Access Point Names ). Settings->Mobile Networks->Access Point Names.
shinobisoft said:
If baseband is correct, then check your APN ( Access Point Names ). Settings->Mobile Networks->Access Point Names.
Click to expand...
Click to collapse
With my old SIM, I can see the APNs from back in Canada, but when I put the new UK SIM in (which shows APNs on my wife's samsung phone) I see nothing listed for the APN.
Should I create a new APN with the same settings as from my wife's phone? Or do I have to do something else?
Does it matter wether the bb is v20c or v20g? As long as its for the optimus one I mean?
Could this have to do with my phone being locked? I'm not sure if it is locked or not... I was trying to unlock it using the code:
2945#*900#
Thanks so much for responding, I had all but given up!
but nothing happens when I put that in. Do I have to revert to stock rom for that to work?
Update:
I tried to put in the right APN info, but I couldn't save it for some reason. Doing some reasearch, I found that this might be a "Funny SIM" problem, but only see patches to fix this under CM9, and I am running CM11. Any ideas?
Cheers!
superdupes said:
Update:
I tried to put in the right APN info, but I couldn't save it for some reason. Doing some reasearch, I found that this might be a "Funny SIM" problem, but only see patches to fix this under CM9, and I am running CM11. Any ideas?
Cheers!
Click to expand...
Click to collapse
Patch may work. Old baseband patch worked thru JellyBean ( CM10 ).
What you're referring to, v20c, IS NOT baseband but software version. What version of Android was the device running when purchased? Anything under 2.3 is old baseband while 2.3 and newer is new baseband. There are two baseband patches floating around XDA. One for new and one for old. Old baseband patch can be found in my FAQ for the LG Optimus One. Post #8 I believe. FAQ
Sent from my LG-D415 using Tapatalk
shinobisoft said:
Patch may work. Old baseband patch worked thru JellyBean ( CM10 ).
What you're referring to, v20c, IS NOT baseband but software version. What version of Android was the device running when purchased? Anything under 2.3 is old baseband while 2.3 and newer is new baseband. There are two baseband patches floating around XDA. One for new and one for old. Old baseband patch can be found in my FAQ for the LG Optimus One. Post #8 I believe. FAQ
Sent from my LG-D415 using Tapatalk
Click to expand...
Click to collapse
I thought I had upgraded to 2.3, but since it wasn't working I flashed the new bb using this guide :
http://forum.xda-developers.com/showthread.php?t=1149530
and made sure that it had definitely flashed. My rom says it is baseband version V20g under the about phone section. So unless this ROM is supposed to be running the old bb (which it didn't seem like that was the case) the baseband version should be correct...
Also, I had previously tried the old bb patch which you are talking about; that didn't work either. What I understood was that "Funny SIM" is a different issue, but maybe I'm just reading the threads wrong.
Thanks again for your continued help!
Solved!
Okay, so it was because my phone was unlocked. I had to:
- Flash the stock ROM
- Flash the OLD BB
Then I was able to put in the code to get to the unlock screen. Once the phone was unlocked,
-Flash new BB
-Flash new ROM
And it works! Hooray! I'm not sure how to mark the thread as solved though?

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