Database Users

''Mobile Network not available'' LG optimus l7 URGENT, cannot text or call people

Hello guys,
I have a problem with my rooted cm10 device.
First of all, when I try to call someone it says : Mobile network not available.
And when I text someone it doesnt send it.
Also when I'm on Whatsapp it says : Note: tablets are currently not supported.
Does anyone have any suggestions on what I should do to fix these problems?
Please PM me if you do.
Thanks.
-Arth

Arthalion said:
Hello guys,
I have a problem with my rooted cm10 device.
First of all, when I try to call someone it says : Mobile network not available.
And when I text someone it doesnt send it.
Also when I'm on Whatsapp it says : Note: tablets are currently not supported.
Does anyone have any suggestions on what I should do to fix these problems?
Please PM me if you do.
Thanks.
-Arth
Click to expand...
Click to collapse
Reflash with Stock firmware! (Best Solution)

chill.you need the flash a special v10k version with kdz or clockworkmod recovery.first wipe data,wipe cache, wipe dalvik cache, then flash v10k.after that wipe data,wipe cache, wipe dalvik cache again and the install cm10.This is what i did and i had no problems.if it still doesn't work, try rebooting a few times untill it gets signal

kdz
disablealex said:
chill.you need the flash a special v10k version with kdz or clockworkmod recovery.first wipe data,wipe cache, wipe dalvik cache, then flash v10k.after that wipe data,wipe cache, wipe dalvik cache again and the install cm10.This is what i did and i had no problems.if it still doesn't work, try rebooting a few times untill it gets signal
Click to expand...
Click to collapse
exacly, flash this trough kdz tool : http:// forum.xda-developers .com/showpost.php?p=40604310&postcount=3654 then go to cmw and flash the cm10 and your connexion will be working.
nvm i made a mistage, not trough kdz just trough cmw

Im going to try it when I get home thanks. I'll keep posting.
Sent from my LG-P700 using xda app-developers app

Alright I've done it all. Will be done in a bit I hope

Well it didn't really work, it's where it was at the start, except I can't use the store anymore(before and after i downloaded gapps)
:/

(Sry for my bad english)
Arthalion said:
Hello guys,
I have a problem with my rooted cm10 device.
First of all, when I try to call someone it says : Mobile network not available.
And when I text someone it doesnt send it.
Also when I'm on Whatsapp it says : Note: tablets are currently not supported.
Does anyone have any suggestions on what I should do to fix these problems?
Please PM me if you do.
Thanks.
-Arth
Click to expand...
Click to collapse
(This is my first post on xda)
Hi, i have exactly the same problem, i was on v20a (root, cwm) and when i downgrade in special v10k, mobile network disapear, i try all wipe, any v10 roms but no solutions, but it's good on all v20 version (Sry for my bad english)

Ryukimo said:
(Sry for my bad english)
(This is my first post on xda)
Hi, i have exactly the same problem, i was on v20a (root, cwm) and when i downgrade in special v10k, mobile network disapear, i try all wipe, any v10 roms but no solutions, but it's good on all v20 version (Sry for my bad english)
Click to expand...
Click to collapse
I still haven't been able to fix it, PM me if you have a solution ^^

Arthalion said:
I still haven't been able to fix it, PM me if you have a solution ^^
Click to expand...
Click to collapse
Have you tried this : http://forum.xda-developers.com/showpost.php?p=41536333&postcount=4127
https://disk.yandex.com/public/?hash=gX3YHLIx5o7EfaI4Ab6Xaq1gRvZLm1QkD0bjpQT6i2w=
Sent from my P700

Yeah, trough CWM,
Or did I have to use the KDZ flash tool?

How do i delete the CM10 with like a factory reset or something, I don't care that i lose files, i just want to be able to call/text..

I have a similar problem. I have tried to go back to v10k and back to v20 (CM was rebooting about 3 to 5 times a day) but I've lost EDGE (yeah, the city I live in only has edge connections - 3G works fine tho) and nothing I've tried got my mobile network going.
I do have the v10 from my operator but KDZ won't install it (says that the phone isn't the correct one, weird)..
(edit: btw, 2G isn't working even with v10)

Hello friends.
I am trying to fix my Lg Optimus L7 for 2 days now, i tried almost everything on the forum and still i cannot get my network working. Here is what i did so far:
Installed the Russian V10k via KDZ - Not working, i cannot get signal again
Installed 10 other KDZ files that should have "worked" but nothing
I flashed back v20a and i have network, then tried again to downgrade again no network
I Installed slimbean (when i am on v10k) and flash the zip v10baseband.zip - again no network
I get phone sim locked, network locked
Please help me, what should i do?

[Q] Custom ROM : phone restart after unsimlocking

Hi!
I'm beginners with custom rom and i'm french.
I have a S5360, and i try several CUSTOM ROM.
Several rom boot correctly, then i type my sim code, i have unsimlocking then the phone return to the the normal screen.
After few second il have black screen and the phone restart. (i thing is then the phone found mys provider).
I try with 2 different SIM, one sim from ORANGE PROVIDER and on from FREE PROVIDER.
Same result.
I try to :
wipe data and factory reset,
wipe data cache partition
wipe dalvik cache,
install several time de same custom rom.
But every time is the same restart.
The phone work well because when y use de stock rom XXKL3_OXXKL1_XXKL3 everything goes well.
I hope i post on the right place.
can anybody help me ?
Thank by advance
jeapet

Uhmm try Galaxy Toolbox and unlock ur sim with that and then see if the problem persists.

aniket.lamba said:
Uhmm try Galaxy Toolbox and unlock ur sim with that and then see if the problem persists.
Click to expand...
Click to collapse
Thanks for you reply.
I can't try anymore today i need my phone to work.
I restore to the XXKL3_OXXKL1_XXKL3 yet to use it next week.
but i try your suggestion next week and i give the result.
Thanks
jeapet

[Q] No network service GT-S7710 after installing CM10.1, 10.2 or 11

Hi peoples!
I’ve recently installed Cyanogenmod on my Samsung galaxy Xcover 2 (GT-S7710). But when I was done installing my phone couldn’t get any data (H/2G/3G) or call and receive calls. Could someone tell me what I did wrong or forgot whilst or after I installed Cyanogenmod? I would like to know because I’ve read other threads where people with a GT-S7710 do have a working network service on their phone with CM. And I also would like to know the solution to this problem because I can’t take a beating .
I apologize for the length of this first post . I just want to be totally complete about what I’ve done and tried so far to get CM to work with network service. I posted all this information to inform you all and so you could stripe a lot of questions off your list for finding the solution. Also I think this thread may be very useful for other Samsung Android users as well.
Kind regards,
Rick Willems
The problem
So the problem is that when I’ve installed CM10.1 or 10.2 or 11 to my GT-S7710, I don’t have any network service anymore. I tried to install CM using the following method: http://blog.arinium.fi/2014/07/howto-fix-samsung-xcover-2-issues-old-android-low-memory-slow-ui/. I installed CWM 6.0.4.6, wiped cache and installed CM10.2. After this it got stuck in a bootloop. Using the advice of this page: http://forum.xda-developers.com/showthread.php?t=2084905 which was to also wipe data/factory reset and wipe dalvik using CWM it worked!! YES!! But **** no service.
Used Files to install
Links I used to download CWM, CM and Gapps come from these pages:
http://forum.xda-developers.com/showthread.php?t=2384015&highlight=no+network, http://forum.xda-developers.com/showthread.php?p=43294839#post43294839,
CWM: http://www.adriadata.net/xda/skomer/
CM: http://www.adriadata.net/xda/skomer/
Gapps: https://itvends.com/gapps/
What I’ve done and tried
I tried to get network service back when I installed CM10.1 and CM11. In both cases I did a full wipe of data/factory reset, cache and dalvik then installed the latest stock rom/firmware 4.1.2 and do the instructions over again form the chosen method. I did notice that my phone does have network service when I have installed the stock rom/firmware downloaded from this link: http://www.mrcrab.net/down-firmware/14362/Samsung-Galaxy-Xcover-2-GT--S7710.html, My device also has got service when CWM 6.0.4.6. is flashed over the stock rom/firmware. Just not when I installed CM. CM10.1 was running more smoothly than CM10.2 and CM11 was running a little less smooth than CM10.2.
Attempt to solve the problem
I’ve brainstormed the following pages to get to the point of giving up .
http://forum.xda-developers.com/showpost.php?p=35600769&postcount=2
http://forum.xda-developers.com/showthread.php?t=1205439
http://forum.xda-developers.com/showthread.php?t=2448246&page=2
http://forum.xda-developers.com/showthread.php?t=1304258
http://android.stackexchange.com/questions/39076/sim-card-failed
http://forum.cyanogenmod.org/topic/63816-network-problem-with-cyanogenmod-101-1218/
http://forum.cyanogenmod.org/topic/85051-no-service-cant-calltextnetwork-after-flashing-cm11-nightly-on-i9305/
The most pages are threads for other devices, but I thought I just read it anyway, maybe I could get some useful information out of it. Some pages talk about CDMA/RUIM that you can find under network setting in settings, but I’ve not been able to find it on my GT-S7710. Other data found in these pages are also not corresponding with my device.
What I did notice and learned was that information in the EFS folder like Imei, Baseband etc. are used to find and recognize the simcard and thus enable data usage and be able to call and receive calls. So I thought why not backup a copy the EFS folder and place it in CM’s EFS folder after install, so I did. I installed stock firmware where my network service works following the same steps I took that I described earlier, backup the EFS folder to sdcard1, install CWM and CM10.1 and tried to copy the backed-up EFS folder to CM root. But no way would it replace the CM EFS folder, CM simply blocks the copied EFS folder from stock rom/firmware.
I am just out of ideas now and am requesting your aid. Please help me .

Got the same problem here,unfortunately no fix yet

Try this:
kadooosh said:
For those trying to install this or another rom and having the no signal(no smallband) problem. This worked for me on 2 xcovers.
Install cmw: http://theunlockr.com/2014/02/27/install-clockworkmod-recovery-samsung-galaxy-xcover-2-gt-s7710/
Root it: http://theunlockr.com/2014/02/27/root-samsung-galaxy-xcover-2-gt-s7710/
Now normally you can install the custom rom now(vanir). If you do you probably get no signal.
Start odin and flash this file : S7710XXAMB6_S7710OXEAMB3-20130713.tar.md5
I found it on this site: http://www.ulozto.cz/xHADj5PD/samsung-7z
If its dead you can pm me and I can send it.
After I flashed this the phone would just go in a bootloop.
Don't be afraid this is normal.
Now install the vanir rom in the cmw recover mode.
After this it should work fine.
Add a microsd card with 2 partitions and install mount2sd and you have a fully working phone with(almost) unlimited space.
I'm using if for an year now and it works great.
Better then most €500 phones which break after 1 fall .
Click to expand...
Click to collapse

With skomer it is definitely a baseband problem. Changing baseband solves the network signal.

ViktorDelta said:
With skomer it is definitely a baseband problem. Changing baseband solves the network signal.
Click to expand...
Click to collapse
because i have the same problem, i installed cm10.2 and everything were fine for a week and then no signal, i tried to install all the available firmwares out there, the closest i got was to find network and 3g i made a successfull call then i shut it off. At the next boot nothing again. My baseband is xxxx. What do i have to do to change baseband? My IMEI is correct.
does anyone have a /modemfs and /efs folder available to try or/and a modem file to flash?

Odin flash
Go to this page https://boycracked.com/2016/09/11/official-samsung-galaxy-xcover-2-gt-s7710-stock-rom/ and download stock rom labeled "oxeamb3". Put your phone on download mode and connect to odin. Flash this rom with it.
After that, flash your clockworkmod and custom rom. Vanir or CM.
If you still lose signal, try with AND2 stock rom. It's been a while since I did this so I don't remember exactly, but I think AND2 had problems with signal and AMB3 didn't.

Problems CM based roms

Hi I got problems with my lux on every cm based rom. On every cm rom I get no reception of my carrier. I don't know if it's a device tree issue or just apn trouble. Since there are no aosp roms, I'm a little hung up. Stock rom works fine. I own the xt1562 operating on German carrier o2. Sometimes I get a few seconds of reception on cm roms, but it's leading just to no signal after a few seconds again. I nearly tired everything, flashed a different firmware etc. When I've flashed a rom I get the information that no sim card was found. After I restart the device he's asking for a pin. Also tried another sim card with the same result. Really could need some help.

flash the original fimrware from ur carrier or region
flash twrp
install cm and see if works
if not,flash only the radio modem from original firmware

Already did. Didn't work. Flashed the new cm12.1 from h2o64. This one is working.

I have the exact same problem with my XT1562 I bought from Germany through Moto Maker.
I installed h2o64's CM build from 10-10 after a full wipe (everything except internal data), and never got any proper signal. I tried squid2's CM build 10-12 as well, to no avail. Installing the XT1562 EU stock firmware following the linked explanation in the stock firmwares thread I had good, working signal, but then installing h2o64's CM build 10-14 with a factory reset rather than a full wipe resulted in the same issues described in this thread again.
I've read about these issues in different threads, mostly resolved somehow by installing the stock firmware, sometimes by selecting LTE as the preferred network type. I've tried these suggestions, but haven't had any success, and I don't know how to proceed.
Did I install the right stock firmware? (I would think so as it worked while it was installed.)
Did I forget to do something (like wipe, fix permissions, reboot the phone three times, howl at the moon,...)?
I use OpenGApps rather than tkruzze's since they're available in x64 as well so I can use them on all my devices. But that surely can't be it?
I'm at a complete loss at the moment, which is rather frustrating. Can anyone provide any help?
Gesendet von meinem Nexus 9 mit Hilfe von XDA Forums Pro.

I managed to install h2o64's CM build 10-14 and getting proper signal now.
I flashed the RETASIA firmware from XMoDuLeSx's Official stock firmwares added for xt1562,xt1563 thread following the instructions linked in the first post, and then after a wipe of system, data, cache, dalvik-cache I installed [ROM][lux][5.1.1] Cyanogenmod 12.1 - 2015-10-14 [UNIFIED].
Keep in mind that I have ordered my Moto X Play from Germany, so it shouldn't require a RETASIA firmware. I'm not advising to install this, as it was nothing but a shot in the dark that surprisingly didn't brick my phone. Still, I wanted to share that I got it working after all, simply to follow up my previous post properly. Should the signal break again, I'll update this thread; if I haven't, assume that it's still working.
Either way, though: If you decide to go down this road and install a firmware that isn't right for your phone and brick it, don't come to me. I'm advising against doing this.

Seems i'm having the same issue...
I did all the wipes and clean installs but I can't connect to my carrier.
Although my phone only supports one sim card, settings shows two. The first one is the one i'm using and it is displayed correctly. The quick settings tile though tells me that there is no sim card inserted.
I came from stock, unlocked, flashed TWRP from squid2's kernel page, rooted, flashed CM(squid2), kernel(squid2) and OpenGApps.
Did I do something wrong?
Is there any news on how to fix this problem or do I have to try again and again an hope to hit the spot?

Mafaldine said:
Seems i'm having the same issue...
I did all the wipes and clean installs but I can't connect to my carrier.
Although my phone only supports one sim card, settings shows two. The first one is the one i'm using and it is displayed correctly. The quick settings tile though tells me that there is no sim card inserted.
I came from stock, unlocked, flashed TWRP from squid2's kernel page, rooted, flashed CM(squid2), kernel(squid2) and OpenGApps.
Did I do something wrong?
Is there any news on how to fix this problem or do I have to try again and again an hope to hit the spot?
Click to expand...
Click to collapse
You need two more posts before you can post this in the CM thread from squid2. Squid2 is always fast with bugfixes. So make 2 other post and then explain your problem to him.

Lennyz1988 said:
You need two more posts before you can post this in the CM thread from squid2. Squid2 is always fast with bugfixes. So make 2 other post and then explain your problem to him.
Click to expand...
Click to collapse
Thanks for your reply!
I will do that
Meanwhile I managed to get a connection to my carrier by flashing h2o64's CM build 10-14 and then squid2's on top without wiping anything...

RR Lux 5.5.8 didn't work Wifi, after 2 clean instalation, wifi turn on and off then

Moto G5 Plus LTE-4G no Signal

SOLVED!
First I apologize for the English, I'm using google translator.
Hi everyone, I really need help. Yesterday I used adb to reinstall the stock rom oreo 8.1 (XT1683 POTTER RETRO 8.1.0_OPS28.85) everything went well, until the cell phone started... After installing the rom, I realized that my 4G doesn't work anymore, only the network 3G. When I put on the LTE(4G) network, the network is without signal. I installed more than 4 custom roms in an attempt to restore the 4G signal, but none of them worked. Reading some things here on the forum, I saw that it may have corrupted something in the file system, but I didn't find any solution. My IMEI is normal, the only problem is the 4G network that doesn't work anymore. Anyone have a solution? I don't have any files backed up. I'm currently using the custom rom (dotOS-R-v5.1.1-potter-GAPPS-20210614-0527) and I still have the same problem.
Anyone have a solution? If there is a solution and it is on video, even better. But it can be in text too. thanks in advance
Edit: Now I'm totally out of signal, just Wifi. My IMEI is normal, but I don't have a SIM card signal.
Edit²:
Problem solved.
How did I solve the problem?
I kept installing and reinstalling several roms and nothing worked. So I decided to install the Nougat 7 flashable rom, that's when after installing I realized that the 4g network was re-established. I immediately restarted the phone in recovery mode, accessed TWRP and saved the EFS file to the memory card and a pendrive. I reinstalled the custom rom I wanted and the network stopped working again, I checked and the IMEI was 0 so I restored the EFS file that I had backed up on Nougat 7, and it worked perfectly in the custom rom.
But another problem appeared, the fingerprint did not work. So I reinstalled the custom rom and it didn't work, I reinstalled the Nougat 7 flashable and the fingerprint came back, but when I installed the custom rom again, the fringerprint was disabled again.
To solve the fingerprint issue, I installed the Oreo 8.1 Flashable Rom and then installed the custom rom and the fingerprint issue was resolved.
NOTE: My LTE/4G network was only re-established because my IMEI was not reset, for this reason I managed to save the EFS file and restore it to the custom rom. I don't know it will work on devices with IMEI RESET.
Flashable Roms used:
Nougat 7 Flashable - POTTER
potter-twrp-flashable-NPNS25.137-93-18-aroma
Stock rom Flashable Oreo 8.1 - POTTER
potter-twrp-flashable-OPSS28.85-17-6-2-aroma
I used the roms from this topic: https://forum.xda-developers.com/t/nougat-stock-rom-twrp-flashable-stock-builds.3813351/
Thank you so much @NZedPred , your topic saved me.