No data only exclamation mark

I have canadian rogers lg g3.i have flashed cm and aosp as well as other like miui.I have never had an issue conecting to data services but now whenever i flash anything other than custom STOCK roms i get signal bars but no 4g logo and a strange exclamation mark.help me figure what i have done.and i also am able to send and receive texts.i have checked and apn is correct.never had an issue before so i know I have done it

Sent from my LG-D852 using XDA Premium HD app

Exclamation point next to cellular signal cm12.1

Recently I have been having this issue. I have reflashed my ROM and even then this issue will eventually occur. When it happens. I can only fix it temporarily (via clearing dalvik/cache) and by going into mobile settings and clicking on the already selected access point name. After I do any of these, the next time I reboot, the exclamation point comes back. Please help me!

Things to note:
-I flashed the stock 24B modem so cm updates work
-Adaway is active
-Xposed 5.1 installed
-HTC one M9 camera flashed

(I'm putting these here just in case they may have something to do with it)

Sent from my LG-VS985 using XDA Free mobile app

Red triangle with an exclamation mark inside

Hi, I have an unrooted HTC One M8 device running an Android 4.4.4 version. The system update (Android 5.0 Lollipop) should have been received last week. I didn't receive it, so I downloaded the update in order to install it manually. When I try to enter the Recovery mode to install the update I get a red triangle with an exclamation mark inside instead of the Android logo. So I have to press the volume up key with the power key simultaneously until the phone restarts itself. Is there a solution for this problem?

exclamation mark in wifi

hi.my m4 aqua has an exclamation mark in wifi.i cant connect in my router.tha tablet and the other phone connect with out problem. any solutions?

Red Triangle w/ exclamation mark when trying to update to Android 5.0

Hi everyone,

I am currently trying to update my phone for the 5th time to Lollipop.
I have a rooted HTC One M8 with a custom flashed recovery (which I did ages ago, with the assist of a tutorial on youtube).
I think I need help trying to reflash the recovery back to stock, I tried to reflash the recovery myself but I still get the same red triangle w/ exclamation error. I am too much of a newbie with this stuff to fix it myself and I find myself in a place where I don't know how to update!! :crying:

Could anyone please link me to a guide on how to reflash the recovery to stock? I really have no idea what I am doing :confused:

Many thanks