[Q] Complete Loss of Signal - ONE Q&A, Help & Troubleshooting

The other day i got the OTA update for xnph38r for my OPO after i updated it i realized i had lost all signal.
i am on AT&T network and the phone was working perfectly fine until the update
- using ART runtime at the time of update
- when i reboot the phone i noticed that when holding the power button it says airplane mode is on but when i look at the icon or the status bar it is not on
- have tried soft reset and hard reset a few times already
- tried going back to 33r and even 22r but signal has yet to come back
- i see at&t's apn but when i got to choose a network operator i get the message "error while searching for networks"
other than ART rather than dalvik the phone was stock.
anyone have any ideas as to why my phone cant get a signal?

Check the no imei thread

Related

[Q] Network Mode Disappearing

I had searched prior to this post but no definitive answers were found
Phone: VZW S3 running BeansROM 14 (and formerly 15). Android 4.1.2.
As the title says, Network Mode has disappeared from Settings>More Settings>Mobile Network>Network Mode. I just re-flashed build 14 yesterday and it's disappeared already. Why did it disappear? Normally it wouldn't make any difference but I'm planning to take my phone to Europe in July and I need to be able to switch it to GSM/Global.
I have Phone Info as well but that hasn't been working properly either; I can switch some CDMA options but it gets stuck on the previous selection and never switches back to 4G/LTE. Only the option in Network Mode can reset it.
Is there a solution to this? Thanks.
Edit 1: It seems to be something caused by Phone Info. I have Phone Info installed, haven't opened it, and Network Mode is still there. I'm also back on build 15.

[Q] No Signal At Boot With New ROM

Hi there, just wondering if anyone can help with a small problem I'm having after flashing a new ROM - {ROM}[T][STOCK][JB 4.3][UB&LB][9.2.A.0.295] Official Firmware - Rooted&Deodexed 18/02, by DaRk-L0rD. My problem is that when I first turn on my XperiaT, I usually have no service on my phone - i.e- I cant make calls at all. The phone works fine for everything else, but I have to manually go into Settings-More-Mobile Networks and after a few seconds the phone picks up the signal and the bars appear. If I don't do this it will just sit there for hours not getting anything! I've tried entering the Phone Information menu through *#*#4636#*#*, and setting the preferred method to WCDMA, and I've made sure that in the Mobile Networks settings that is also the preferred method, however it seems that if I reboot the phone, or the battery dies and I switch it on, it randomly forgets these settings and I get nothing. If I try to enter the Settings-About Phone-Status screen when I've no signal then I get force closed, but when I have signal it opens no problem and my IMEI is there and is correct. Also, sometimes the little red missing SIM icon appears alongside the red x on the bars, although this doesn't happen all the time.
It's a small issue because it only happens maybe 80% of the time, and it's not a big deal going into settings and reactivating things, but it's a bit of a hassle at this stage.
Previously I used "[ROM]XperimenT 3.5[T/TL][9.1.A.1.145][Locked & Unlocked][23/09/13]" by TiMiN8R without this issue so I know that the phone/sim are actually ok as it only started immediately after flashing the new ROM.
You can see from my three screenshots that I have no service for two minutes, enter the mobile networks menu, and finally after being in that menu for a few seconds up pop the bars!
If anyone can help me out I would really appreciate it.

[Q] No carrier signal - damaged HW after L update?

After updating to 5.0 my Nexus is kind of stuck in airplane mode.
I usually turn to AP mode at night. Yesterday morning, I turned AP mode off, but I didn't get any carrier signal. The AP mode icon is not there, but when I try to make a call, I get the "turn off AP mode" message. Wifi works fine, but I can't make any calls or receive messages.
First time it happened, I removed the SIM, rebooted, put it back in, and it was back. This time, it doesn't work. I tried another SIM to no avail. I even rooted, did a full wipe, but the problem persists.
Any ideas?
Solved!
I flashed all of these modem images:
http://downloads.codefi.re/autoprime/LG/Nexus_5/Modems
Should have done it in ascending order and not from the newest, as only the second one worked, lol
EDIT:
Not.... signal is gone again and I get random crashes. Trying to install vanilla Lollipop.
I tried everything I can think of. Even reverting back to KK. Still, no signal. I got some the other day, but soon it disappeared. It's probably a HW error, sadly :crying:
Is it possible that my antenna was damaged because of the L update? Am I the only one who has this problem?
Can you check your IMEI in About Phone => Status? It may be that your IMEI was lost during the update.
I already relocked the phone and sent it back to the seller for a reclamation. Hoping to get a new one by Xmas

LG G5 Sim not detected only for SMS and calls

As stated I'm using the LG G5 H830 T-Mobile variant. I am getting 4G LTE data connection and everything runs well (Not in any WiFi range) Yet for SMS and calling as well as mobile hotspot I get "No USIM card' error. This happened after wiping the system and formatting data. Rebooted recovery (as per instructions on forum) then installed the stock firmware & Patch with systemless root and xposed. After this I did factor reset when just pulling the sim didn't help. Still nothing. I reflashed just the stock firmware with TWRP and SuperSU and issue is still happening. I've disabled rebooted and enabled the phone radio. SIM is in good condition and tray as well everything is SECURE and should be good to go.
I'm assuming a new SIM might be a solution. But I'm not counting on it and with Labor Day tomorrow for me I wouldn't be able to pick one up for 2 days. So here I am...hoping someone might have a fix. I know I don't have many posts on here. But I am an experienced user....just not with the more basic of problems I guess
Thanks!!
Has anyone else experienced this yet? I'm just curious...I had it fixed for a couple days. I've formatted data and done complete system wipe. Tried it resetting phone with the COMPLETE zip and TOT using LGUP. I'm receiving texts. Not calls. Not able to send either. I've activated new sim, didn't help. LG support just told me to look into warranty. T-Mobile needless to say just wanted. Sim card does show stock tmobile short code contacts but phone number shows as unknown. Hotspot won't work. I've tried setting the phone number to the sim. Nothing.
Anyways. I don't think I messed with anything, even so I've done everything to start the phone from scratch. Going to replace it, just more or less curious at this point and maybe others have had the same issue.
I believe I had the same issue as you and it was driving me crazy. I was constantly wiping data, system, etc but my phone kept giving the message "roaming indicator off" where it should show the name of the carrier. This resulted in me having LTE data and that's it- no 3g, no phone calls, etc. I couldn't even access the mobile network menu.
What ended up causing the issue was the network mode setting under wireless networks. Keep in mind at this point I'm running a patched rom which now gives more options in the network mode menu than the phone came factory with. I have an area at work where I have to switch to 3g, GSM/wcdma preferred network setting, because although I have full LTE signal, my connection goes dead. When switching back from 3g I chose the setting lte/CDMA thinking this would force my phone to stay in lte mode due to another area on an upper floor where the phone will constantly drop lte.
Anyways this resulted in my phone saying roaming indicator unavailable, the inability to make or receive phone calls, and either the mobile networks or network mode menus being grayed out. When stuck in this mode there is no way to put the phone back into the standard "GSM/wcdma/lte" mode. Even a complete reflash won't fix it. I even used lgup, which worked for maybe a day until it force closed the phone app and went back to roaming indicator unavail. I wiped every partition and even reflashed radio firmware. Nothing worked.
What ended up fixing it was using an app called v10 hidden settings which allowed me to access the network mode menu directly and re-choose the lte/wcdma/GSM setting. Incidentally on first access to this menu through the app there are only two network settings available. Once you choose a GSM setting, the rest appear.
I'm not sure if this was your issue but I hoped this helped because this took me about a week to workout.

Cant connect to network or change network from "Global"

Device: G955U
Carrier: VZW
Starting Firmware: PartyCyborg Rom (Root)
Current Firmware: 5DSC1
So having a strange issue hoping someone can help me with.....
Woke up this morning phone was working, since my phone was charged I turned off "Battery Saver Mode" and after i did that I lost network connection. After checking that the network wasn't just down I began by flashing to stock flashing "3CRE2", thinking maybe something in the software no go.
Decided to apply the stock updates, I did this for awhile to no avail.
When I hit update 29 I think it is, the update right before the newest update, magic!!!! It started working and saw 4g LTE icon and had bars. Thinking that it was finally fixed I went ahead and installed the newest update which was pie thinking all was good. And yet again lost connection again.
Im getting "NO SIM CARD" on the lockscreen. Also, when I go to Network Mode I can't change from "Global" to "LTE/CDMA"
I went to Verizon got a new sim still no luck.
Any advice???
-------------------------------------------------------
-What is the dialer code or is there an app to force the network type to LTE/CDMA?
-Does anyone have a pit file for the v5 bootloader?
TLDR:; Cant get phone to connect to cell tower, says no sim card but got new sim card. Can't change the network settings from global to lte/cdma

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