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[AOKP] Cellular Data Not Working

Hey there, first post and the search function wasn't working so if this problem has been posted elsewhere just let me know.
I just flashed the Sept. 28 AOKP for the A2 along with 4.3 GAPPs and everything seems to be working swimmingly...
Except the mobile data.
I've enabled and disabled data, enabled and disabled airplane mode. Reflashed the firmware and GAPPs and still the data doesn't seem to want to work. I'm getting 5 full bars and for whatever reason it just won't connect.
Anybody else had issues like this?

sammanzhi said:
Hey there, first post and the search function wasn't working so if this problem has been posted elsewhere just let me know.
I just flashed the Sept. 28 AOKP for the A2 along with 4.3 GAPPs and everything seems to be working swimmingly...
Except the mobile data.
I've enabled and disabled data, enabled and disabled airplane mode. Reflashed the firmware and GAPPs and still the data doesn't seem to want to work. I'm getting 5 full bars and for whatever reason it just won't connect.
Anybody else had issues like this?
Click to expand...
Click to collapse
You have to manually put in the APN 's for the ROM
Goto system settings mobile networks Access Point Names and manually input the settings depending upon your carrier the setting will differ...
Google your carrier specific APN settings and input them it should do the trick....:laugh:

darth_nihar said:
You have to manually put in the APN 's for the ROM
Goto system settings mobile networks Access Point Names and manually input the settings depending upon your carrier the setting will differ...
Google your carrier specific APN settings and input them it should do the trick....:laugh:
Click to expand...
Click to collapse
You are the best! Post won't let me change title to solved just yet, but for all intents and purposes my data problem is fixed! :laugh:

sammanzhi said:
You are the best! Post won't let me change title to solved just yet, but for all intents and purposes my data problem is fixed! :laugh:
Click to expand...
Click to collapse
Glad to help a fellow A2 owner ........:laugh:

Lenovo P780 2g/3g problem

I have dual sim Lenovo P780.
PROBLEMS:
DEFAULT SIM SLOT (supports WCDMA and GSM) - works fine only on WCDMA /3G. When I put it on "GSM only" it goes dead - "connection error", "emergency calls only" and all that.
SECOND SIM SLOT (which is GSM only) doesn't work att all.
The sim cards are fine (checked it on other phones).
I also put other sim cards in my phone (and swich them around) => same result - sim 1 only 3G, sim 2 dead
Both of them see the providers but have no signal on gsm/2G mode.
Thanks,

Same problem here?
Any workarounds yet?
Cheers

i have the same problem and I cannot find a solution...

Change radio module ( modem).

the same problem here,
badmania98 said:
Change radio module ( modem).
Click to expand...
Click to collapse
I cant find another one, only for S920.

This is my P780 (S920, S820 are compatible) modem collection :
modem P780.zip
http://www51.zippyshare.com/v/55282913/file.html
But:
1. For Chinese model I recomend V51 or V52 ( on the battery is written in chinese). Both sims works but no WCDMA 900 band( chinese version doesnt have this frecvency) . I use V51.
2. For European model V20, V26. (on the battery is not written in chinese). If it used on chinese model will be no signal on Sim2 (x sign)
How to install:
Download and unzip the file modem P780.zip. Chose modem file.
1. Put the modem file (zip) on the SD
2. Use CWM, TWRP or mobileUncle
3. Install modem from recovery
4. Wipe cache
5.Reboot
Let me know if it works.

badmania98 said:
This is my P780 (S920, S820 are compatible) modem collection :
modem P780.zip
Click to expand...
Click to collapse
Great! Thank you.
Your zip is stored on my computer
Nothing helped, I gave all a try.
But now I found out, thats a problem if my local provider and his radio cell.
When I leave my home cell, all is fine.

I installed S920 V17 modem and both slots works for me now on my P780.

Lenovo P780 3G not working in sim1
Hi Badmania,
I also recently bought a lenovo P780. i didnt realise it was a chinese model only after going through your post. i got a little problem with this handset and i hope u can help me out with it. Slot 1 probably supports 2g/3g connection but i am not able to get 3g connection in the slot 1. i tried swiping the same sim card in another handset of different brand and i can use 3G without any problem. slot 2 works fine with 2g.i am a newbie to this android and i dont have any idea about CWM, TWRP or mobileUncle. i would appreciate and be grateful if you could post step by step procedure to change the radio module ( modem) for Lenovo P780 chinese model. i cant read Chinese and its a big problem for me. Looking forward to hear from you soon.
Regards

Stuck Half way
Download and unzip the file modem P780.zip, chose Modem file= SUCCESS
1.Put the modem file(zip) on the SD= SUCCESS
2. Use CWM TWRP or Mobile Uncle= Downloaded mobile Uncle but cant proceed
Steps i took on mobile Uncle:
1. Clicked "Into Recovery Mode" on mobile Uncle> Reboot to Recovery> OK> WARNING!! ROOT REQUEST!! > Please Root your Android First!!...............i cant proceed further from here! PLEASE HELP ME!

Root + TWRP
Root+ TWRP
Read me file inside.
http://www62.zippyshare.com/v/50541818/file.html

Confused
Dear Badmania,
Thank you so much for your help and support though i couldn't execute the solutions you have provided above properly.
Finally i realized why my 3G connection on slot 1 wasn't working after doing a vast research online. I found out that, in order to use 3G in my country(BHUTAN), i must have a smart phone that supports GSM- 850/900/1800 MHz & WCDMA 850/1900/2100 MHz Frequencies. My network service provider told me that i wont be able to use 3G without these Frequencies in BHUTAN.
As per my knowledge, Lenovo P780(chinese model) supports GSM- 900,1800,1900; UMTS-2100 only. I am worried and confused what to do now. From where and how to add GSM- 850 MHz on this handset?????
Will i be able to solve my problem with the solutions you have provided in your previous post??? OR is there a different procedure to overcome this problem. Please help me, i like this smartphone(lenovo P780) so much that i don't want to switch on to another smartphone.
Regards,

Install mobileUncle Tools from GooglePlay.
Open the program.
Under Engineer Mode\Engineer Mode (MTK)\ BandMode\ you will find Sim 1 and Sim2, where you can see what bands are availlable. GSMMode (2G) and WCDMA (3G).
This is it. You can not add other band.
As I know, the chinese model ( mine also)has only WCDMA2100 ( on mobileUncle is WCDMA-IMT-2000). I need WCDMA -GSM 900 but ...it is not possible. It is not a software but hardware issue.
There are 2 versions of P780. One with 4G storage with WCDMA 2100, and one with 8G storage with WCDMA 900&2100 .

Thank you!
Thanks a lot, Now i regret buying this phone to be used in my country!

Please help
i have install root acces on my chinese p780
But i have problem when i try to install v51 modem for my sim card 2 to work in romania.
i have installed twrp manager and granted super user acces.
on my sd card i put the V51+s820.zip file
When i enter TWRP manager / INSTALL / External SDcard / select V51+s820.zip and then when i slide to install the device rebot into Android system recovery 3e and i dont know what to chose... i chose apply update from sdcard and sdcard2 then the android logo of installing apear for 1-3 minute (and i dont see anthing installing) and then the decive reebots.
Please help.. i dont know how o do it..

You already have the answer with what you do wrong, on the romanian forum.

install modem driver to P780
Hello!
I need some help. I've bought a Lenovo P780 phone and when I put in my SIM, I realized there is no signal and the phone can't connect to the network. After some advices I tried to install modem drivers. I downloaded the drivers from badmania98's upload. I copied them to the phone internal memory (tried with SD card too, with no result). I started TWPR manager (tried with mobileuncle too), pressed install, selected one of the unzipped pack, eg. v52 Modem_P780_V52.zip. Slide the slider, my phone reboot, I got the system recovery. I choose apply update from sdcard (or sdcard2 from external SD card) and choose my zip file. My output is:
-- Install /sdcard ...
Installation aborted.
Neither of zips work. What should I try? Did I miss something?
Thanks
Daniel

I need some assistance please.
Hello badmania I am in need of some assistance from you please. I bought my Lenovo P780 and as I've seen and heard, people are having bad signal quality. I was looking online trying to see if there was a way to solve this problem. I ended up on this website and saw your steps on how to do it, but honestly I have no idea what I'm doing. I was wondering if you could sort of guide me through the process please. I would really appreciate it.
Thanks,
Moises

Hey. I have the same kind of problem (chinese Lenovo P780, trying to use it in Hungary with a GSM 900 / 1800 provider) but the weird thing is that the phone loses signal occasionally. I mean if I check the phone, about 7 times of 10 there is no signal. I tried out a lot of modems (found on a russian blog) then I tried out the modems posted in here, but it's still the same. I checked the settings in engineer mode and everything is turned on. Please tell me what is going on.

nandude said:
Hey. I have the same kind of problem (chinese Lenovo P780, trying to use it in Hungary with a GSM 900 / 1800 provider) but the weird thing is that the phone loses signal occasionally. I mean if I check the phone, about 7 times of 10 there is no signal. I tried out a lot of modems (found on a russian blog) then I tried out the modems posted in here, but it's still the same. I checked the settings in engineer mode and everything is turned on. Please tell me what is going on.
Click to expand...
Click to collapse
I have the same problem I'm sending the phone back to the store and asking for a replacement.
I had another P780 2 months back (dropped into water} and there was no such problem.

[HOW-TO][E SS/DS]*UPDATED*Workaround for problems to save APNs manually on ICS ROMs

As most users already know, there is a bug in the dual-SIM ICS FTF if you flash it on Xperia E, not being able to manually save APNs. Infact, not being able to create them at all.
Well, I had this and fixed this problem on xmoose's XBoosT ROM , but since its based on the stock ICS firmware, it'll work for it too.
Here's what you want to do to fix it :
METHOD 1:
Disable 'Data Transfer" : Go to Settings > (under Wireless and Networks) More.... > Mobile Networks > UNTICK 'Data Enabled'
Go Back, and turn ON Airplane Mode
Wait till its completely turned on
As soon as its turned on, turn it back OFF
Now go set up your APNs!!
Hit the THANKS !!
P.S : I believe the bug was because the ROM could not detect the MCC and MNC port numbers of your respective carrier. But this fixes it. Weird.
UPDATE: Looks like this bug exists in the Dual SIM variant too. To fix it on DS phones, follow these: OK, it seems the bug isn't device-specific. Just try either method (if Method 1 doesn't work, try Method 2)
METHOD 2:
NOTE: You'll need a working Wi-Fi network with for this!
Connect to any Wi-Fi network
Go to Settings > Dual SIM card > Untick SIM 1, and then tick it back again
Go to Settings > Xperia (TM) > Internet settings
The APNs should get downloaded and be working!
(Thanks to @TheRealSS for Method 2)

Will try this,if you are sure it works,let @UltraGamerHD note this in his Official thread under "How To"

NeoTrix said:
Will try this,if you are sure it works,let @UltraGamerHD note this in his Official thread under "How To"
Click to expand...
Click to collapse
Will Do!

KDB223 said:
As most users already know, there is a bug in the dual-SIM ICS FTF if you flash it on Xperia E SS, not being able to manually save APNs. Infact, not being able to create them at all.
Well, I had this and fixed this problem on xmoose's XBoosT ROM , but since its based on the stock ICS firmware, it'll work for it too.
Here's what you want to do to fix it :
Disable 'Data Transfer" : Go to Settings > (under Wireless and Networks) More.... > Mobile Networks > UNTICK 'Data Enabled'
Go Back, and turn ON Airplane Mode
Wait till its completely turned on
As soon as its turned on, turn it back OFF
Now go set up your APNs!!
Hit the THANKS !!
P.S : I believe the bug was because the ROM could not detect the MCC and MNC port numbers of your respective carrier. But this fixes it. Weird.
UPDATE: Looks like this bug exists in the Dual SIM variant too. To fix it on DS phones, follow these:
NOTE: You'll need a working Wi-Fi network with for this!
Connect to any Wi-Fi network
Go to Settings > Dual SIM card > Untick SIM 1, and then tick it bak again
Go to Settings > Xperia (TM) > Internet settings
The APNs should get downloaded and be working!
(Thanks to @TheRealSS for the fix for DS)
Click to expand...
Click to collapse
thank you. it works.

KDB223 said:
As most users already know, there is a bug in the dual-SIM ICS FTF if you flash it on Xperia E, not being able to manually save APNs. Infact, not being able to create them at all.
Well, I had this and fixed this problem on xmoose's XBoosT ROM , but since its based on the stock ICS firmware, it'll work for it too.
Here's what you want to do to fix it :
METHOD 1:
Disable 'Data Transfer" : Go to Settings > (under Wireless and Networks) More.... > Mobile Networks > UNTICK 'Data Enabled'
Go Back, and turn ON Airplane Mode
Wait till its completely turned on
As soon as its turned on, turn it back OFF
Now go set up your APNs!!
Hit the THANKS !!
P.S : I believe the bug was because the ROM could not detect the MCC and MNC port numbers of your respective carrier. But this fixes it. Weird.
UPDATE: Looks like this bug exists in the Dual SIM variant too. To fix it on DS phones, follow these: OK, it seems the bug isn't device-specific. Just try either method (if Method 1 doesn't work, try Method 2)
METHOD 2:
NOTE: You'll need a working Wi-Fi network with for this!
Connect to any Wi-Fi network
Go to Settings > Dual SIM card > Untick SIM 1, and then tick it back again
Go to Settings > Xperia (TM) > Internet settings
The APNs should get downloaded and be working!
(Thanks to @TheRealSS for Method 2)
Click to expand...
Click to collapse
dude i followed each and every step and it would work for the time being but after just one reboot the prob comes again all my apn accounts r gone but able to revive by following this procedure again and again. cant there be any permanent fix for this problem.

aahanable said:
dude i followed each and every step and it would work for the time being but after just one reboot the prob comes again all my apn accounts r gone but able to revive by following this procedure again and again. cant there be any permanent fix for this problem.
Click to expand...
Click to collapse
ya.. even for me after first reboot the apn disappeared but still I could connect to the internet. after some reboots (didn't count) the apn reappeared all by itself !
EDIT : now my phone saves the apn's sent as a msg from my operater. this wasn't working before ¿¿

smz2014 said:
ya.. even for me after first reboot the apn disappeared but still I could connect to the internet. after some reboots (didn't count) the apn reappeared all by itself !
EDIT : now my phone saves the apn's sent as a msg from my operater. this wasn't working before ¿¿
Click to expand...
Click to collapse
Well, atleast its working now...wasn't that the whole point?

Phone have no signal

Hi all
I have try a lots of things without success.
My brother give me his phone because he breaks it (sim card reader was broken)
I bought an new one on eb*y and during the delivery, i install p30a rom.
When i received the new sim card reader and intalled it, i see that no signal.
I check APN, no one but i cant add new !
When i add a new one, menu + save, it go back and leave blank !
I have a IMEI ok.
So i launch other rom, because i was thinking it was that but no one change !
i cant do sos call
Network: Unknown
Signal strenght : 0dbm 99asu
Mobile network type : unknown
Service state : out of service
Android version : 4.0.4
Baseband : omap4430/xmm6260
Kernel : 3.0.21
I cant change SIM card lock, i can see the sim contact with some app
In search network, i have nothing
Thanks u a lots !!!
ps: i am french so i am realy sorry for my bad english !

So today i have installed SSH in it for exploring system with putty.
The IMEI is good (the same as behind the battery) but i cant see the /efs folder and i cant mounf mmcblk0p3
That is normal ?
otherthing, where are stocked the APN ? i want to inject it witout the gui. (because inside the gui, it dont work)
thank you

[challenge] Can explain why mobile data only works with stock ROM?

Hi!
Can anybody explain me why mobile data only works with original stock ROM?
I have tried ambasadii and king rom.
With both ROMs I was able to activate my SIM card.
With both ROMS I was able to make and receive phone calls and sms.
With both ROMs I was able to access wifi.
With both ROMS I had mobile data turned ON from settings.
With both ROMS I had correct APN data (verified from my ISP homepage)
small hint (may be unrelated): When I uninstalled too much of bloatware (probably something I shouldnt) I ended up in the same situation. I had mobile data on, and correct APN data entered.
In all cases described above:
1) web browser showed me that I am offline.
2) ping google.com told that google.com was unknown host.
3) ping 8.8.8.8 told me that it cant reach that network is unreachable
In all cases I tried to:
1) Restart phone
2) Move to location with better signal (although I tried in places where it worked with original rom)
Nothing helped. So I installed back stock ROM. Now mobile data works out of box again. With stock ROM I did not touch APN settings. It just worked.
Can anyone explain me what is happening and how this could be fixed?

It works on custom ROMs too.. depends what u didn't install from aroma installer from the custom rom..or maybe a CSC related problem but I don't think so. I'm on a s8 port ..and I tryied all the exynos ROMs out here and the mobile data worked on every one of them

^^That's correct. You are doing something wrong. I can confirm Mobile Data works fine on every single Custom ROM I have tried.