Hi.
i recently got an alpha 850fq from someone and it just stopped working after a day. Everything is okay except it shows NULL IMEI AND BASEBAND so i am not getting network signals. Please tell me how to fix it if its hardware or software problem.
(It was just lying there and the problem happened on its on.....it did once get its imei back for 2,3 minutes and lost again when i restarted) i have not done any modification/rooting on this device.
UPDATE ON THE ISSUE, the Baseband and imei come back randomly and keep working unless i change Mobile network to "LTE/GSM" auto connect and enable 4g or 3g data....it seems the baseband gets corrupted only when i enable 3g or 4g....i have the EFS backup and restoring it when the imei baseband are null does not do anything. For some reason they come back on their on randomly.
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Hi guys,
This is my first thread and I've just recently began rooting and flashing roms etc.
I'm sorry if this is a duplicate thread but I searched the forum and found nothing. Here's the thing:
I have a Samsung GT-i9300 ( international version ) and after the first flash I lost my efs folder.
Which did not only mess up my IMEI. It messed up bluetooth, connectivity, wifi adress and the phone lost it's identity.
I took it to a " technician " who said he could fix it. He restored my imei, but the network wouldn't work. So he put another IMEI and voilá!
The phone had connectivity and worked perfectly. So he told me that my phone's imei was reported as stolen because the network wouldn't let it connect. ( and I have had this phone since it first came out of the box and I never reported such a thing. )
He then said the police would have to be involved to verify if i'm the owner so I just told him to put a new imei on.
When I picked up the phone it was working fine. Full connectivity. Then I flashed a rom and lost my efs folder again.
Luckily I had a backup of the imei, wifi, serial and bluetooth adresses. Which were sucessfully restored.
But still, no connectivity. So I googled it and finally found a solution! The problem is with the Baseband.Basically the phone lost it's baseband files, without which the phone cannot connect to the network, and when the " technician " restored my imei, he copied the whole EFS file from the dead phone. Which then replaced the missing files and the phone worked. So my IMEI wasn't blocked, my EFS file was corrupted and the baseband files were missing.
I used the Ariza patch. And voilá, the connectivity is back. But after being turned on for about an hour, the phone has a pop up which says it's not registered in the network and it must restart with a valid sim. And it's a no option pop up, you are indeed forced to restart your cell phone which is annoying because it shuts off at night and operations that take more than an hour are impossible.
But still, after 2 days, the ariza patch stopped working. The phone is in Emergency Calls only now and it doesn't detect the sim. But it's not blocked, it connects to the network.I read that you could flash the modem files to fix this aswell. So I downloaded the modem file for my phone, from my carrier ( VODAFONE PORTUGAL ), from one of the threads here. It didn't work.
Now, this is the question:
Is it possible that it didn't work because my new EFS file is from a phone based in the UK and my phone is from Portugal?
Can it be a sim software problem?
Also, is there any solution found other than the obvious which I've already exhausted ( flash stock rom, wipe cache, etc )
Thank you an Advance guys!
All of sudden today, the voice calling service on my phone stopped working.
It gives the BSOD whenever I try to make a phone call...
I was on CM11, then I tried to revert back to stock, but still the same.
Strange thing is that the SMS and mobile data is still working fine.
The phone connects to the network service fine. (I'm on Straight Talk.)
Just can't make or receive any phone call...
I found out that the phone's IMEI shows "0" so thought the issue I had must have something to do with the null IMEI.
I knew that I had EFS backup (it's about a month old), so I tried to manually restore them (all 3), but the result is the same..
Now, I don't know what to do.. Can anyone help me out?
hi guys, mine smartwatch is pretty damaged, i didnt do a backup of efs, and now i cant register on network, so i tried to restore stock rom, and baseband is back, but i still cant register on network, my imei is null and serial number shows 0123456789abcdef, is there anyway to fix this, cause the main problem is that the device itself is a smartwatch and it doesnt have the imei number writed on his back like regular phones, some pictures of the device are here
can someone help me out, thanks
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 sm g925f s6 edge which was working fine until about a week ago
after a restart I lost my imei and my baseband
which comes back after almost 6 restart and often after restoring the backup of my efs
ps: I have a backup of my efs
but every time I restart I lose my imei and my baseband
and I have to restart several times and restore my efs to hope to solve the problem again except that it does not work all the time
actually my baseband and imei are there so dontt want to reboot
if someone know whats is the pb if not i will to change the motherboard