Okay, I am having this problem for past few days. There is a similar thread but the problem is different than what OP faced. I was running Chameleon OS which is stock based ROM for few months now then I decided to change the ROM. I installed NeatROM 7.4 (KK 4.4.4) with full wipe and I noticed that I was unable to receive any network signal.
Initially I thought the problem was only limited to that ROM so tried installing different version of that ROM and still faced the same problem. I changed different ROMs but with no use so I decided to flash back stock ROM through Odin and it worked.
I don't want the stock ROM and my phone doesn't receive any network signals on any other ROM.
Here are the things I've tried and noticed:
- SIM is in working condition.
- Tried other SIM cards.
- IMEI is shown in the phone.
- Mobile network state = Disconnect
- Signal strength = -83 dBm 15 asu (At time of writing, Color OS)
- Phone number says = Unknown
- Service state says = Out of Service
- Only receive network in stock ROM.
- APN settings are fine according to carrier setting (Every ROM automatically sets it accordingly so the SIM is registered. maybe)
- On Color OS, I sometime get signal but I am unable to make or receive any calls.
- Changed modems.
- Tried number of ROMs including C-ROM, NeatROM, Resurrection Remix, Color OS.
- Works on Stock, Floral ROM, Chameleon (First one)
I need help to make my SIM work with custom ROMs. I am using U Mobile (Malaysia).
Thanks
Related
My cellphone lost network connection after flashed to CM7-2.1.1. Is it the network's problem, or the ROM's BUG? The network is normal in the first several hours after phone is flashed, but now it can not be found. If it is the ROM's problem, what can I do?
added: my phone's custom kernel is nAa-03
added: my phone's custom kernel is nAa-03. Maybe it is not compatible with CM7-2.1.1???
Hi,
I flashed CM 10.2 and I had a problem, the signal was coming and going so I returned back to stock.
Now I flashed unofficial CM 11 and I'm having the same problem, this is a video (notice the signal bar in the status bar).
http://videobam.com/LFZKy
And yes, I tried to flash another radio.
Thanks,
This is really strange, I fixed the problem and I don't know how, here's what I did after asking this question:
1-I left the phone on aeroplane mode for over 10 hours and the problem still exists.
2-I flashed an efs v1 modem and my signal fully disappeared and my IMEI changed to "Unknown".
3-I flashed the emergency zip and the signal fully disappeared and my IMEI is still "Unknown" :what:
4-I flashed an efs v2 modem and everything returned as it was before; IMEI was correct and the signal was coming and going.
5-I let the phone choose carrier automatically from the settings. Of course I did that when there was signal, Otherwise you can't open "Network operators".
6-I entered a new APN with info exactly as the currently chosen one and didn't select it.
7-I was on play store when I noticed the problem has been fixed
Note: My carrier when I had this problem and now is the same, "VIVA"
Going to eat some KitKat
Sent from my GT-I9300 using Tapatalk
Hi guys,
so i decided to try a nightly of CM11.(4.4.2) flashed with safestrap 3.65, rom slot-1 etc no errors what-so-ever; boots perfectly. (gapps not flashed yet)
After phone setup, i unlock my sim. --> then i see verry short 3G Vodafone. it disconnects and does not come back.
When i try to search for networks, i get an error wich sasy something like: "Error resolving networks". Sim toolkit is working.
also a request to unlock my simcard is popping-up at a random rate. it disappears after ~2s.
i google'd around and came accross the baseband wich might be an issue. the phone says i have "u_04.10.00r". seems like its the most stable one from what i read. I decided not to mess with it (yet), because i still works on stock rom.
Now i have flashed CyanFox (4.4.2) nightly. no change. (also gapps not flashed,)
Hope someone maybe has the same problem or even better knows a solution.
Edit: The last nightly i flashed is from CM11 official Feb/05. only difference is the sim unlock request pops up more frequently.It also shows a full radio bar for 1 sec after it disappears.
(gone too fast to input something...)
Edit 2: After the Feb/6 nightly, no change. i have been keeping my eye on the status info. it says the following:
Network: Unknown / unknown / Vodafone NL
Singal: -57 dBm 28 asu (variates)
mobile network type: unknown / unknown / UMTS
service status: Radio Off / not in use / in use
It is switching all the time. before it goes 'in use' it asks for sim unlock, goes away and it's for a short time in use.
I really have no clue...
Edit 3: Progress...
According to an other post i had to delete CellBroadcastReciever.apk from the zip file. re-installed, and i had network connection. but no internet. (singal indicator was orange).
After looking for running apps, the cell broadcaster was still running? (maybe i did not wiped correctly) after is stopped the app, my internet connection works!.
Im trying a really fresh install next, see what happens.
Thanks in advance.
[Solved]
After deletion of romslot-1, re-creating one, wiping, deleting the CellBroadcastReceiver.apk from the install package. And finally installing...
It works like it should.
Maybe this is helpfull for someone in the future!
/solved
Hi Everyone,
I recently rooted and installed CM13 (20160606) nightly on my i9300. At first everything worked flawlessly, but last Thursday (16th June) I lost signal and have not been able to get it back since. In case the circumstances for when it happened could have an influence, then here is a bit more details from around the time I lost signal.
I was having signal and the mobile data was working fine, as I was running low on battery the phone was on battery saver, when the battery hit 2% it had signal and I didn't look at my phone after this. As I came home, I immediately plugged in my charger and at the same moment my phone shutdown due to no more juice on the battery. When I started up the phone again, it had no signal.
I've tried to clean flash the same nightly again, clean flash newest nightly (20160618). I've also tried to flash other modems without any luck. APN settings have been double and triple checked, deleted, setup and triple checked again. I've tried to downgrade my TWRP to 2.8.6.1 from (3.0.2-1) and flashed the nightly - No luck.
Here are my system details:
CM version: 13.0-20160618-NIGHTLY-i9300
Baseband version: I9300XXEMG4
IMEI: 35299...........
IMEI SV: 01
Sim Network: Unknown
Signal strength: 0
Cellular network type: UMTS
Service state: Data: Out of service
Cellular network state: Disconnected
I think this could be related to the incidence when I lost signal, after battery power out, as this was working fine up to then for 10 days.
Let me know if I need to provide any more information or if you have any ideas what I can try to restore my signal.
When I go to search for Network Operators it finds two, when I try to register to the one which is not mine it says my Sim card doesn't allow this. When I try to register to my actual carrier it takes a long time and it comes out saying "Can't connect to this network right now". My signal strength in the about section is "0". I'm not sure where the problem is, if I have 0 signal, how can I find two carriers?
I got back to Android 4.3 by sammobile ROM, after flashing patched XXUGMK6 kernel and modem, I now have a signal. But, I'm still unable to connect to my carrier. My IMEI and S/N match those under the battery. After searching my carrier shows up in the mobile network list, but it fails to register to the network, and goes to have No Service and says the selected network is unavailable.
Solved. I went through basically everything I could dig on the internet, not sure exactly what did the trick.
ahvdk said:
Solved. I went through basically everything I could dig on the internet, not sure exactly what did the trick.
Click to expand...
Click to collapse
can i ask what did you do? :< im on cm13 also, did you flash new update of cm13? or clean install again?
I have a Jiayu S2 double-SIM phone, running the most up to date official ROM (4.4.2).
This ROM had a couple of bugs (no GPS and no notifications to external devices such as smartwatches), so I wanted to check other available ROMs. Using the Flash Tool I have tried a couple of the ROMs in the needrom site (https://www.needrom.com/category/jiayu/s2-jiayu/). In particular, a couple of versions of the official ROM, another ROM known as Salamander, and an unofficial port of Cyanogenmod 12 (in which the camera was not working).
The issue is that, for some reason, at some point my phone has stopped getting phone signal. The SIMs ask for the PIN on startup, but there is no signal. I have reverted to the original ROM; plus done a factory reset, and I could still not get signal.
The APNs for both SIMs are fine. Then I have realised that the IMEI was empty. Luckily I had it written down, so I have installed Xposed and the Device IMEI Changer, with which I have been able to restore the IMEI. Now I can see the IMEI on the Settings - IMEI information, as well as with *#06#.
But still, now with the original ROM, and with the IMEI restored, I still cannot get phone signal. I have tried setting the phone to flight mode, restarting, selecting manually the network... When trying to manually select the network I can see several networks, but the phone will simply not connect to the one it should.
Any idea on why could it be that I cannot get phone signal? Thanks.
After trying everything, including restoring the IMEI with Xposed, I have finally managed to restore cell service by restoring the IMEI with this tool: https://play.google.com/store/apps/details?id=com.cryptotel.chamelephon