[Q] Lenovo p780 8gb 3G network problem - Lenovo P780

I am unable to connect to 3g network always shows x dead signal 2works fine .. :crying: ... My phones version is ROW S124 ; baseband version v23 ... Any solution how can we fix this issue?? When I went to service center , they told its a hardware issue we will have to change PCB .. Pathetic service in India (Bangalore) ... Need help ... Newbie

Insane AJ said:
I am unable to connect to 3g network always shows x dead signal 2works fine .. :crying: ... My phones version is ROW S124 ; baseband version v23 ... Any solution how can we fix this issue?? When I went to service center , they told its a hardware issue we will have to change PCB .. Pathetic service in India (Bangalore) ... Need help ... Newbie
Click to expand...
Click to collapse
3G coverage in India is very bad and that is the highest possible reason. Do you get GSM signal to make and receive calls? Whenever I saw 'x' near the signal icon, the problem was IMEI lost or wrong Radio flash. Try retrieving your IMEIs using Mobile uncle if you have backed up them. Else try different Modems which is also explained with steps in one of the other thread in this Forum.

ganapathyraman_s said:
3G coverage in India is very bad and that is the highest possible reason. Do you get GSM signal to make and receive calls? Whenever I saw 'x' near the signal icon, the problem was IMEI lost or wrong Radio flash. Try retrieving your IMEIs using Mobile uncle if you have backed up them. Else try different Modems which is also explained with steps in one of the other thread in this Forum.
Click to expand...
Click to collapse
Thanks Ganapathy..
GSM is absolutely working fine on 2G mode. No problem with calls n all so far,I just have problem only with WDCMA mode and on auto mode thats all . whenever i select WCDMA mode it show X near signal... I a newbie so plz help me installing modem on this or any other solution.. Thanks

Cek your sn. If appear like mine. You got same prob with me. And i still has the prob unsolved.
Sent from my P780 using XDA Premium 4 mobile app

Mine is different exact serial # printed on box... Any solution bro ?? I have upgraded to 4.4.2 row s223 , baseband v104 ...

angerousevil said:
Cek your sn. If appear like mine. You got same prob with me. And i still has the prob unsolved.
Sent from my P780 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Insane AJ said:
Mine is different exact serial # printed on box... Any solution bro ?? I have upgraded to 4.4.2 row s223 , baseband v104 ...
Click to expand...
Click to collapse
Maibe this link will help you: http://forum.xda-developers.com/lenovo-p780/general/guide-imei-baseband-backup-t2673130

problem solved with reflashing rom and restoring nvram thx.

same here
I'm also using the same version as you, and I don't see any problems at all with coverage,
maybe it's the provider's problem

Related

im stuck ..

hello all ...
i have a Korean Samsung Galaxy S2 Model SHW-M250K
i just flashed XXKL1 on it .. and now there are no signals .. my phone is just running on FLIGHT MODE .. its not activating my mobile SIM network ..
plz help
do you have an imei number?
akusokuzan said:
do you have an imei number?
Click to expand...
Click to collapse
yes .. but why ?
IMEI - removed
Sorry, remove your imei number from the post... I was asking in case your EFS had corrupted. Maybe I should have been a bit more clear lol.
If you go in About > Status, check if the IMEI shows up.
When you flashed the phone, did it also update your radio? What is the baseband version?
Edit and delete that emei!! That's for you only ;-)
Sent from the future using xda ultimate edition.
akusokuzan said:
Sorry, remove your imei number from the post... I was asking in case your EFS had corrupted. Maybe I should have been a bit more clear lol.
If you go in About > Status, check if the IMEI shows up.
When you flashed the phone, did it also update your radio? What is the baseband version?
Click to expand...
Click to collapse
YES IMEI is showing over there
dun know abt Radio ... and are u asking about baseband ver. before or now ?
now it is I9100XXKL1
Why dont you try different modems for your country or a custom ROM that has your countries CSC also.
And you've tried already to turn off airplane mode? If not, try that and just let me know if it's giving you Emergency Only or just not connecting to the network at all. Were you using it OK before? Downgrade your radio if ever
reboot couple of times and if you rebooted while charging then remove charger and reboot
Thxx all .. Problem was solved .. Jst changed my modem and it was all set ..
Sent from my GT-I9100 using XDA

Connectivity problems

Hi All,
I have some problem with my network connectivity. Since I bought my Galaxy s3, the network disappears so I'm not able to make any call. I have to restard my mobile to get network back. Some people told me that it is a baseband problem (as I'm in Belgium and my mobile comes from France) so I changed it but I got the same problem but less often.
Can you guys tell me where the problem comes from?
Thank you very much!!
youngspice said:
Hi All,
I have some problem with my network connectivity. Since I bought my Galaxy s3, the network disappears so I'm not able to make any call. I have to restard my mobile to get network back. Some people told me that it is a baseband problem (as I'm in Belgium and my mobile comes from France) so I changed it but I got the same problem but less often.
Can you guys tell me where the problem comes from?
Thank you very much!!
Click to expand...
Click to collapse
More likely sim card problem or network itself check with your network .
Backup data and factory reset the phone or check for updates via OTA or KIES .
jje
JJEgan said:
More likely sim card problem or network itself check with your network .
Backup data and factory reset the phone or check for updates via OTA or KIES .
jje
Click to expand...
Click to collapse
Hi,
I tried it already and it did work for 1 or 2 days and it's coming back again. My sim card was pefectly working with my former phone.
Concerning the updates, everything has been done and i'm now running on Omega v9.1
After all of thatm is it a technical or material problem?
Thanks!!
youngspice said:
Hi,
I tried it already and it did work for 1 or 2 days and it's coming back again. My sim card was pefectly working with my former phone.
Concerning the updates, everything has been done and i'm now running on Omega v9.1
After all of thatm is it a technical or material problem?
Thanks!!
Click to expand...
Click to collapse
Omega is not a factory rom so that could be the problem or the modem .
Suggest wipe phone remove rom counter to zero with Triangle |Away flash stock rom and test fails return to service center .
jje
Thanks for the advice! :good:
JJEgan said:
Omega is not a factory rom so that could be the problem or the modem .
Suggest wipe phone remove rom counter to zero with Triangle |Away flash stock rom and test fails return to service center .
jje
Click to expand...
Click to collapse
Problem persist only on wcdma or also on GSM mode?
Wysyłane z mojego GT-I9300 za pomocą Tapatalk 2
Okay. So this isnt 100% confirmed to work but sometimes it does for me. Install the rom u like. Most roms have modems that are suited for most countries so ull be okay on that part. Whe it says no service make sure its no internet and not no service. Then reboot into recovery fix permissions wipe dalvik do whatever u want haha then go to options and then more then clturn on airport then turn it off.
For those with the no service status it either could be talking a while to kick in due to a bad/unsuitable modem with ur rom or u need to find one that suits you. Here are a few helpful links.
http://forum.xda-developers.com/showthread.php?t=1740061
http://forum.xda-developers.com/showthread.php?t=1646610
there are other links too to explain modems in details. So just give it a lil search and ull be okay

[Q] Only emergency calls ...NO NETWORK COVERAGE

Please can anybody help me on this matter !!!!
My phone i acting strange...i have a jelly bean installed and the phone has full functions except NETWORK COVERAGE !!! ONLY EMERGENCY CALLS !!!
I here attach some pictures with diagnostics with apps downloaded from google play ...
It would mean a great if someoane has passed with his galaxy gt-i9300 through this problem and solved it .. best regards....
What is strange in all this diagnostics (specially in the 2nd picture) that it shows me the sim number ..the carrier without Network coverage ...
By the way the jelly is COSMOTE Romania ..thanks
Can you please post in the correct section.
Thread moved.
Sent from my GT-I9300 using xda premium
sorry
Mr. Clown said:
Can you please post in the correct section.
Thread moved.
Sent from my GT-I9300 using xda premium
Click to expand...
Click to collapse
sorry.... I'm new here ... in the future i'll try to be more specific and more accurate posting in the right section !!!!
best regards
Did you try other SIMs? I know someone in Hong Kong had problem with the Galaxy S2, the problem is similar to this although there is no firmware upgrading performed before. Then it works again after changing the SIM from the network operator.
I'd probably notice that your radio is 'unknown'. Try this http://forum.xda-developers.com/showthread.php?t=1918601 , it helped me. My case was very similar to yours but I had 0000000000 as my serial number and not a random hex string such as yours.
As always check correct IMEI first .
Wrong IMEI see multiple posts on the subject or pay for a repair .###
Check you have mobile network APN settings correct .
Check you have a modem try a different modem .
jje
pxloaded said:
I'd probably notice that your radio is 'unknown'. Try this http://forum.xda-developers.com/showthread.php?t=1918601 , it helped me. My case was very similar to yours but I had 0000000000 as my serial number and not a random hex string such as yours.
Click to expand...
Click to collapse
i have tried it before ...seems to be other the problem ... acts the same with ariza ..but anyway thanks for the support
JJEgan said:
As always check correct IMEI first .
Wrong IMEI see multiple posts on the subject or pay for a repair .###
Check you have mobile network APN settings correct .
Check you have a modem try a different modem .
jje
Click to expand...
Click to collapse
mobile APN is ok...COSMOTE broadband ... earlier tried with diferent modem.bin ... it does exactelly the same as now..no network coverage...
IMEI ????????????????
jje
JJEgan said:
IMEI ????????????????
jje
Click to expand...
Click to collapse
IMEI is ok..just checked on this site ...
www numberingplans com

problem with network

I am facing network problems.I have no signal in both sims.I had 4.2.1 and now upgraded to P780_ROW_S221_140729 but problem is not fixed.I tried a couple of other modems but still the same.Does anyone know how to help me?I used to have excellent signal and one day it stopped .I did not move country.Is there any way I be sure if there is a hardware problem?Thank you!
leo.galatsi said:
I am facing network problems.I have no signal in both sims.I had 4.2.1 and now upgraded to P780_ROW_S221_140729 but problem is not fixed.I tried a couple of other modems but still the same.Does anyone know how to help me?I used to have excellent signal and one day it stopped .I did not move country.Is there any way I be sure if there is a hardware problem?Thank you!
Click to expand...
Click to collapse
Try this modems from directory MODEMS FOR S221 : https://drive.google.com/folderview?id=0B2ORIgaV4iacOVpDTDcxYW4taDQ&usp=sharing
ROM S221 is KK - modems for JB not working, U must install only those from this directory (Modems for S221)
lenovo P780 Life 07 said:
Try this modems from directory MODEMS FOR S221 : https://drive.google.com/folderview?id=0B2ORIgaV4iacOVpDTDcxYW4taDQ&usp=sharing
ROM S221 is KK - modems for JB not working, U must install only those from this directory (Modems for S221)
Click to expand...
Click to collapse
I tried all of them.I have signal in some places but it is empty at the most time.I think it is a hardware problem
problem with network ~ sometimes got ,sometimes loose ??
I am facing network problems.I have sometimes no signal in both sims.I had 4.2.1 and P780_ROW_S124_140403, the problem is sometimes got network signal and sometimes loose the network signal .Does anyone know how to help me? I used to have excellent signal and one day it stopped .Thank you!
Regards,
kvleong
penang.
KVLEONG88 said:
I am facing network problems.I have sometimes no signal in both sims.I had 4.2.1 and P780_ROW_S124_140403, the problem is sometimes got network signal and sometimes loose the network signal .Does anyone know how to help me? I used to have excellent signal and one day it stopped .Thank you!
Regards,
kvleong
penang.
Click to expand...
Click to collapse
Did you try to reflash your rom amd see if it is not an hardware or software problem ?
problem with network ~ sometimes got ,sometimes loose ??
stympy said:
Did you try to reflash your rom amd see if it is not an hardware or software problem ?
Click to expand...
Click to collapse
Hi Stympy,
How to to reflash the rom and how to know it is an hardware or software problem ?
Thanks.
KVLEONG88 said:
Hi Stympy,
How to to reflash the rom and how to know it is an hardware or software problem ?
Thanks.
Click to expand...
Click to collapse
To reflash your ROM you will find a lot of tutorials in this forum. To know what is the problem, is to root and install custom recovery and change modems one by one till something is going on.
Sent from my Lenovo P780 with TWRP 2.7.1.1
stympy said:
To reflash your ROM you will find a lot of tutorials in this forum. To know what is the problem, is to root and install custom recovery and change modems one by one till something is going on.
Sent from my Lenovo P780 with TWRP 2.7.1.1
Click to expand...
Click to collapse
I have tried all modem versions for my p780 and they dont work properly.Is there a way to find out if it is a hardware problem by myself?I bought the phone from China and I live in Greece so I think it is going to be a long time I guess till it returns.So I d preffer to fix it on my own.
leo.galatsi said:
I am facing network problems.I have no signal in both sims.I had 4.2.1 and now upgraded to P780_ROW_S221_140729 but problem is not fixed.I tried a couple of other modems but still the same.Does anyone know how to help me?I used to have excellent signal and one day it stopped .I did not move country.Is there any way I be sure if there is a hardware problem?Thank you!
Click to expand...
Click to collapse
I think it may be hardware antena problem, because before U had excelent signal. Or try flash the same ROM and modem which U had before (when everything was OK) On Youtube is a video how ro repare hardware antena on P780 (it was russian video).

No service problem in Xiaomi redmi note 3 pro ( SD )

Hi guys, I'm having a big issue for sometime now. I have a problem with the network signal. it says me "No Service" . Does someone else have this problem and knows how to fix it?
now im in last dev rom (7.6.7.)
I flash my device by fastboot ( dev global, stable global , dev chinese , stable chinese ) but in vain
my imei is correct - i have same imei for two slots ( and one imei on the box )
Youness Mu said:
Hi guys, I'm having a big issue for sometime now. I have a problem with the network signal. it says me "No Service" . Does someone else have this problem and knows how to fix it?
now im in last dev rom (7.6.7.)
I flash my device by fastboot ( dev global, stable global , dev chinese , stable chinese ) but in vain
my imei is correct - i have same imei for two slots ( and one imei on the box )
Click to expand...
Click to collapse
Try putting your sim in second slot.
Capt. John Yossarian said:
Try putting your sim in second slot.
Click to expand...
Click to collapse
I put it but in vain
I flashed non hlos bin by Command prompt still no service ...
Youness Mu said:
I put it but in vain
I flashed non hlos bin by Command prompt still no service ...
Click to expand...
Click to collapse
Try deleting your apn and set it up again.
Capt. John Yossarian said:
Try deleting your apn and set it up again.
Click to expand...
Click to collapse
I do but it still no service
Youness Mu said:
I do but it still no service
Click to expand...
Click to collapse
Try a different ROM then, xiaomi.eu for example.
Check your imei.
Sent from my Redmi Note 3 using Tapatalk
salilrane said:
Check your imei.
Click to expand...
Click to collapse
He did, read OP
Im waiting ... ( help me )
Use Qualcomm guide for imei writing.
Then flash stock ROM and see.
There should be different imei for different slots.
Sent from my Redmi Note 3 using Tapatalk
Youness Mu said:
Hi guys, I'm having a big issue for sometime now. I have a problem with the network signal. it says me "No Service" . Does someone else have this problem and knows how to fix it?
now im in last dev rom (7.6.7.)
I flash my device by fastboot ( dev global, stable global , dev chinese , stable chinese ) but in vain
my imei is correct - i have same imei for two slots ( and one imei on the box )
Click to expand...
Click to collapse
Hi,
I have the same issue. Happened with last OS update. MIUI 8 global 7.6.7
I have just one imei on my box
I have the same issue. Happened with an update to a xiaomi.eu ROM 7.6.8/10. I have IMEI, baseband but no signal. tried all methods and QCN files available.
deathmouse said:
I have the same issue. Happened with an update to a xiaomi.eu ROM 7.6.8/10. I have IMEI, baseband but no signal. tried all methods and QCN files available.
Click to expand...
Click to collapse
after a long struggle I managed to get cellular network again by following http://en.miui.com/forum.php?mod=redirect&goto=findpost&ptid=559510&pid=11003999
My kenzo had Baseband and IMEI but "no signal". I flashed kenzo_global_images_6.7.21_20160712.0000.26_6.0_global_bc4c2904a5 (it seems to be a bridge rom version used for downgrades) and then kenzo_global_images_V7.3.6.0.LHOMIDD_20160523.0000.23_5.1_global_aef179560d
Signal only appeared after a while after flashing the 5.1 ROM. Then flashed kenzo_global_images_V8.2.4.0.MHOMIDL_20170522.0000.00_6.0_global and it continued working.
Edit: it is better but far from perfect as I could make and receive calls for a while but then it lost cell network. I don't know of any more ways to fix this.
Hope this helps!

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