1. From the start i put my sim card in do the whole activiation thing over wifi and when my phone comes on it displays and H which i know is 3G service. I live in chula vista CA. my husbands phone recieves 4G LTE so i know we are in a good area. Now this is where it gets weird, when im connected to wifi the H turns to 3G and even 4G LTE will pop up randomly. My data works fine just slow of course and i cansend texts and calls but no MMS unless i use a 3rd party text app like Chomp or Textra.
2. The infamous sim card icon with a "?" . Are there any solutions to fix this? i have called LG tech support, cricket tech, took it into a cricket store, called VZW almost everything besides taking to a cell phone shop.
OK so i have tried every APN there is out there i have tried the ATT,AIO wireless, cricket,vzw, literally all of them and no diffrence besides recieving a MMS rarely. And yes i restarted my device after every APN input. My phone is currently set on global, when i try to switch to CDMA/LTE after 20-30 seconds it comes up with no network and says i must go back to global. i switch it to GSM and i have the GSM only or UMT only (maybe)? or GSM/UTMS. Not sure which one i put exactly but i put the GSM/UMTS mode and comes up the RAT networks here im confused and really didnt mess with it to much. but it will sometimes say E.
I am also wondering can i system update? i attempt to but it says failed. i kinda know that you cant update a device on any service besides its original one.
Now what are the harms of rooting and flashing? does my phone lose value? like i said im a NOOB here and this phone is literally brand new. I appreciate ANY help i get. If you have any questions PLEASE contact me asap. There is probably some info i forgot the add but i will be waiting for any kind folks to help me out