Develop Bugs

3G not working. Please Help.

Hello everybody,
I have a carrier unlocked Xperia Arc. I had flashed .58 firmware, which I had rooted with Zegrush method (bootloader is locked). It was working fine for a few days, then suddenly the 3G stopped working. I am still getting the EDGE (2G) data transfer.
Since my SIM when inserted into my friends Samsung i9003 was giving a good 3G connection and also my friends SIM when inserted into my Xperia Arc was unable to connect through 3G, I thought that the fault was in my Xperia Arc only.
I have
1) Checked APN settings, they are fine. Downloaded and installed them again to be doubly sure.
2) Did a soft reset
3) Did a hard reset
4) Used repair through PC companion
5) flashed .62 firmware with accompanying baseband
6) flashed .42 firmware with accompanying baseband
7) checked network mode. Its WCDMA(preferred)/GSM. On switching to WCDMA, the 3G connection works for a few minutes and then the whole connection drops.
8) I read in some discussion boards that a similar problem arises if the SIM card lock is used but I am not using it.
Is it a hardware defect? Should I unlock the bootloader and flash one of the custom ROMS?
Any other suggestions?
Please help.
Thanking in advance.

call your network provider and say your problem, if they cant solve your problem or says everything is ok then contact sony ericsson repair center.

(Q) my phone isn't able to connect to 3g/HSDPA

My phone isn't able to connect to 3G or HSDPA since I installed Dixperia 2 everlasting ROM. Am I the only one who had this problem? I have a unlocked bootloader. anyone ever experienced like this ?
help me
#sorry for my bad english

mcrlovers said:
My phone isn't able to connect to 3G or HSDPA since I installed Dixperia 2 everlasting ROM. Am I the only one who had this problem? I have a unlocked bootloader. anyone ever experienced like this ?
help me
#sorry for my bad english
Click to expand...
Click to collapse
do you have access point?

Not registered on network but with data connection, any fix?

Hello, recently I had to reinstall stock tmo on my s6 edge because of a soft brick.
Everything was back to normal, my phone is unlocked to use in Brazil. After a couple of days running stock tmo, the phone stopped connecting to the network I use, but still had data connection. So now I can only use 4g but can´t place calls.
Any suggestions? Should I try different radio firmware? Different ROM?
Thanks!
Problem solved, bad imei.

Bro, the problem is that your phone is locked. I had the same problem and the solution was unlocking the phone. In this comunity there is a guy who unlock phones for free! check his post...
http://forum.xda-developers.com/tmobile-galaxy-s6-edge/general/sim-unlock-t3186826

LG G4 H815 Emergency calls only after Marshmallow update

Hi
After the Marshmallow update cellular network isn't working anymore. I've tried different KDZ images, but with most of them I don't even get signal bars.
Only with the 20f version I got the signal bars back. But still only emergency calls.
Also tried the Android 5.1 KDZ, but no luck... Tested it with 2 different sim cards (different providers).
The simcard it self is recognized (the phone ask for my pincode)
I'm out of ideas..

Did you find any solution?

No, the hard lock was triggerd because of a bug in the update. I had to send it to LG repairs.

Maybe a kernel issue check whether u have stock kernal or a custom kernal or do u get full signal 4g on lollipop ?
Sent from my LG-H815 using XDA-Developers mobile app

same problem's here, on 5.1 no problems on signal but now emergency call only
but the phone still can search a network but cannot locked a network
wifi still function

same problem here. Anyone with solution............
A

Need Help please with LG G4 H815 after software update i lost my network

hello guys , i urgently need help with my G4 i updated my phone using lg software and after the phone done i lost the network
i tried to flash it many time with orginal stock and even downgraded to the same , all the roms i used , using flash tool gave me the same issue no network its too weak network not dead 100 % but almost dead
please someone help me and tell me what to do

Hi there,
I will move your thread in the correct forum dedicated to G4 Q&A for more relevant answers.
Good luck

Lg g4 h815 .No service. Need help pls
I am from india. I recieved an international version lg g4 h815. Software version H81510h. I upgraded to H81520L MM using LGUP. After that I'm not getting network. The mobile network option in settings is inaccessible and not highlighted. The phone works perfectly appart from that. I tried searching the issue. I guess it has something to do with the change in modem after update.
Its a case of very low signal reception. I can get 50% signal where it used to be 100. And no network where i used to get 50% network. Anyone solved this issue?

Check your imei i suspect that your modemst is corrupted..