if I use a Rom for an incorrect model version, I lose Wifi and Cell service.
is there a way to repair the wifi and cell service on the new test rom?
if I return to my working backup stock rom, I do have working wifi and cell service.
I did backup my efs folder. I tried to manually copy and paste the files, I tried to restory only the EFS partition in TWRP from a working rom. none of those solve the issue.
is it possible to fix wifi - cell service on a rom with the wrong model number ?
for example, I use the Japanese softbank sm g925z model s6 edge phone.
the roms are from 925f or 920xx
Related
Hi this is starting to really bug me now Im unable to register on a network I get signal bars but only get emergency calls only tried dfferent sim cards and reverted back to latest official stock to no avail any suggestions please
As per multiple identical posts .
First is your IMEI correct
Are your mobile network settings correct
sim card correct and tested
correct modem and csc.
jje
Check your IMEI number. Sometimes, when we flash custom ROM, the phone looses its IMEI number. If it's true, you must use an EFS backup to restore it.
Second solution : your mobile phone was blacklisted (if it was considered as stollen).
Network
Hi thanks for the reply I have been searching I've checked my imei in status and it matches details under battery compartment i'm still paying for the phone (pay weekly) so no reason it would be blacklisted ok just tried another different sim card on Vodafone official s3 stock rom and it registered hmmm im on talktalk which uses voda I know this sim works but i'll get them to send me a new one thanks for your time guys
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!
I bought samsung galaxy s3 . I dont know what its region but i live in india so i flashed indian stock rom and after flashing i have no network.
when i search network manually and I select It says network registered but when i try to call pop up come not registered on network..
I dont know what was the previous rom ?
i tried restoring /efs partition using adb which I backed up before flashing using SAManager but that doent work ..network didnt come
i tried ARIZA PATCH but after that my baseband version get unknown..
What should i do?
Help me finding aprropriate region of my device
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
Hello,
I have an Elephone P8 (2017). After flashing an ROM image to the device, the NVRAM was overwritten and the operating system reported no IMEI. To fix it, I used the SN writer tool to re-enter the IMEI numbers, MACs and serial and re-installed the latest stock ROM from Elephone.
The IMEI numbers are back again but for some reason, the mobile network connection is only available for a limited time after booting. 20-30 minutes later, no mobile network is available anymore until I either reboot the device or toggle the SIM to be used for the mobile data connection.
Has anybody an idea how to get a stable mobile network again?
Is there possible that anything else is wrong or missing in the NVRAM beside the IMEI numbers?
This sounds like you flashed the release-version 20170722, not the first update 20170831.
Recheck. If in doubt, format whole device with SP-Flash-Tool and reflash 20170831.
Hello,
I installed the 20170831 stock ROM but "about the phone" in the android settings lists a baseband version with an older data:
Base-Band-Version: MOLY.LR11.W1630.MD.MP.V9.3.P10,2017/06/26 09:07
Kernel-Version: 4.4.15 [email protected] #1 Thu Aug 31 11:28:07 CST 2017
Build-Number: Elephone_P8_V11_20170831
IMEI-Numbers: 3598500800XXXXX
IMEI-SV: 78
SERIAL: ELEE800....
Same problem
GoaSkin said:
Hello,
I have an Elephone P8 (2017). After flashing an ROM image to the device, the NVRAM was overwritten and the operating system reported no IMEI. To fix it, I used the SN writer tool to re-enter the IMEI numbers, MACs and serial and re-installed the latest stock ROM from Elephone.
The IMEI numbers are back again but for some reason, the mobile network connection is only available for a limited time after booting. 20-30 minutes later, no mobile network is available anymore until I either reboot the device or toggle the SIM to be used for the mobile data connection.
Has anybody an idea how to get a stable mobile network again?
Is there possible that anything else is wrong or missing in the NVRAM beside the IMEI numbers?
Click to expand...
Click to collapse
Hi GoaSkin,
I have the same issue than you. I also overwrote my NVRAM and restored my IMEI with SN writer tool.
(If anyone think he bricks his elephone p8 (2017), he should try to flash a test version (he worked for me, when all the other version didn't work) then reflash with a recent version. )
SMS and 4G Internet works fine but phone call (3G/2G) don't work :crying:. (sometimes when I reboot my phone, it works again but it is rare).
I have the same version of Base-Band than you.
I will try to flash other version, to test if it works for me.
I'll let you know.
I found advices in other forums that people have similar problems on other devices using "Moly Baseband". They managed to solve this issue by using a different version of the moly baseband file when using the IMEI tool.
When you use the IMEI tool, you need to submit the baseband file beside the IMEI numbers and MAC addresses you enter. The baseband file comes with any firmware image. I don't know which baseband version was installed before I bricked the NVRAM partition but it is possible that the pre-installed version was a different one to that which comes with the (newer) firmware updates.
Maybe it is worth to try to downgrade the baseband version which comes with an old firmware image or to try if it is possible to use a baseband image that comes with the firmware of a different device also using Moly baseband.
Furthermore I found out using analysing tools that the phone is still able to get some information of the GSM network. Possible the mobile operator closes the network link caused by bad network requests.