I have been Network Signal Guru on several different mobile with no Issue. However, on Realme GT 2 Pro with A12 V21 RU ROM, when I pressed "Clear All forcings" both SIMs signal completely down. So I tried restarting. Even after restart, No network came on boot. However, after approx 10 minutes, Network came on both SIMs.
So, basically, I have to wait for 10 minutes for network to show on every reboot.
I have tried clearing Network settings from Settings, and, flashing same Full OTA through local Update , and , Full data wipe through recovery, and updating to A13 C12 Full OTA. Still no benefit. Network appear after 10 minutes on reboot . App developer is saying that OPPO devices are different, and could not give any solution.
Please provide any solution.
Related
Hey Team
I am facing a peculiar issue with my Moto e 1st gen (dual sim) off late. Recently all of a sudden my phone stopped reading the Sim, I found out that the IMEI and baseband were showing "unknown" so I did some reading online and tried to flash it to stock ROM which surprisingly worked and both my WiFi and IMEI were restored. However since then the phone fails to receive network signal , it keeps on going to 0 bars. Tried to replace the SIM and flashed it multiple timed with the stock ROM but still no go. Finally decided to unlock the bootlooder install TWRP and done a clean install of CM13 NIGHTLY, surprisingly the network signal reception improved for about 30 minutes after reboot but soon after again went blank. Post this tried to flash CM13 multiple times but no luck it just stays for a while after initial reboot but vanishes thereafter. Also tried to set the aggressive handover from WiFi ... Option under developer option but still no avail.
Really appreciate any help on this issue !!!
Sandeep
Try flashing radios again
Sent from my Moto E using Tapatalk
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?
Hey guys,
since one week my phone doesn't connect to my mobile provider anymore, it says emergency calls all the time. When I restart my phone it requires the pin to unlock it - so my phone detects the SIM also the strength of the signal changes and I can also search for other providers but I can't connect to any of them. I've checked the SIM Card in another phone without problems. I did a reset of the connection settings but without any success.
It's making me crazy because im travelling right now and my mobile is pretty useless also I don't have a PC with me to reflash the ROM...
TWRP is flashed and the phone runs with Fulmics Rom 3.5
edit: after updating to Fulmics Rom 4.0 the mobile connection worked for a few hours but now it's the same problem again. I did a clean flash with a factory reset...
The Problem is resolved for OP. However, we are keeping it open just in case someone else runs into the same problem and wishes to discuss their issue.
Hi, I've 6/64 x821 Le max 2. It starts with indian vendor cripted rom. I've unlocked and now I've Revenge os 9.0
I tried everything to increase Signal but nothing worked.
Signal drop every 10 seconds. 4G/H+ has X symbol almost always. Even if I've 4G max Signal It not connects to internet almost always. When I make a call I've to recall 2-3 times because It not calls.
Tried: (APN, change carriers, change rom, turn to stock, change modem, change firmware, unlock bands with Qualcomm, qfil restore, reset modem etc...). I need help It is very frustrating, thanks.
mediih said:
Hi, I've 6/64 x821 Le max 2. It starts with indian vendor cripted rom. I've unlocked and now I've Revenge os 9.0
I tried everything to increase Signal but nothing worked.
Signal drop every 10 seconds. 4G/H+ has X symbol almost always. Even if I've 4G max Signal It not connects to internet almost always. When I make a call I've to recall 2-3 times because It not calls.
Tried: (APN, change carriers, change rom, turn to stock, change modem, change firmware, unlock bands with Qualcomm, qfil restore, reset modem etc...). I need help It is very frustrating, thanks.
Click to expand...
Click to collapse
format phone,then flash lineage 16 +gapps nano pie .this maybe will help you bypassing this.
mediih said:
Hi, I've 6/64 x821 Le max 2. It starts with indian vendor cripted rom. I've unlocked and now I've Revenge os 9.0
I tried everything to increase Signal but nothing worked.
Signal drop every 10 seconds. 4G/H+ has X symbol almost always. Even if I've 4G max Signal It not connects to internet almost always. When I make a call I've to recall 2-3 times because It not calls.
Tried: (APN, change carriers, change rom, turn to stock, change modem, change firmware, unlock bands with Qualcomm, qfil restore, reset modem etc...). I need help It is very frustrating, thanks.
Click to expand...
Click to collapse
had the same issue
flashing 466 modem fixed it for jio sim
but airtel was tower coverage problem
I can't get the data connection to work at all, and it won't even connect to a 4g network even when the signal is strong. Mine is a H930DS (Joan?)
I just reinstalled the stock pie using "H93031a_00_OPEN_EU_OP_1105.zip", I installed in TWRP. I followed the instructions on the first page of this thread .....
I have tried various custom roms on this phone but this stock pie is one of the very few that even recognizes the sim card. I settled on stock pie inspite of the bloatware.
The problem happens when the rom is brand new, before ANYTHING is disabled or removed.
When I choose to search for a Network Operator (using the 3 Network sim) I get a "3 RAT-4G" and a "3 RAT-3G" listed and it will never connect to the 4G if I choose that one. It will only connect to the 3G. Even when the signal is very strong (5 bars). When I opt to connect to the 3G network then I get a stronger signal if I choose "GSM/WCDMA auto" in "settings>>network>>mobile netwroks>>network mode" but still no data connection
THESE DIDN'T HELP
1 - using ADB and restarting the phone in bootloader. It was to reset the modem I think. There was a series of 3 commands to follow. i can't remember the details of this method but I think one of the commands included "fastboot erase modemst2". I tried it and I was getting the same error message that other people reported and it didn't go anywhere.
2 - The following solution didn't work either..............
"re-loading IMS settings using the LG Hidden menu: Dial *#546368#*930# using the stock dialer -> Field Test -> IMS Setting -> Test -> Load Preset Configuration -> Initialize Configuration. Then back out twice to Field Test -> IMS Setting -> Test -> Restart IMS process. Give it a few minutes."
3 - Resetting network settings didn't help either (Settings -> General -> Reset -> Network settings reset).
4 - Changing APN, or network bands (in settings ... choosing "LTE/GSM/WCDMA auto" or "GSM/WCDMA auto" or "WCDMA only")
5 - Changing "set preffered network type" in engineering mode settings (accessing using *#*#4636#*#*)
How can I use data connection on my H930DS?
Data modem works now!
SOLVED!
My phone has bootloader unlocked and TWRP revcovery. That's obvious I know but I only say it again in case anyone tries this with a locked bootloader and using a stock rom that has never been flashed. (I have to warn you that your results will be different, your rom will be reset for sure an your data will be wiped).
I tried so many things, flashing up and down from 8 to 10 but Stock Pie was always the least buggy for me so I persevered with that.
I think this solution reset the hardware, but I am no expert.
The solution is basically a "Factory Reset (R&D Only)". They warn you against it but with my configuration all it did was reboot the phone into recovery and then left it for me to decide what to flash or wipe, as per usual. What I only realized later, when I rebooted into system (without changing anything in TWrP) was that it had reset the hardware, or reactivate data connectivity. NowI have 3g data connection and 4g connection.
THE SOLUTION
*the following 4 lines are a direct quote (my phone's os DID NOT reset)
1) Backup everything, as the phone will be wiped. If yours is a network unlocked carrier model, make sure you have an unlock code (or unlock approval if T-Mobile).
2) Remove your Google account to disable Android Device Reset Protection.
3) Dial *#546368#*930# (replace 930 with your model number). This should open the service menu. From there SVC Menu - Factory Reset (R&D Only).
This takes quite a bit longer than normal Factory Reset. Your phone is now TRULY back to factory state.
I took out the sim and sd card before I committed to the reset. But like I said, it didn't wipe anything (maybe it would have wiped my sd card but I am not testing that). It just booted into recovery and when I rebooted into system I found that the data connection was working. Now finally it is a smartphone!