To mighty developers: Can ROM cause problems or damage USB connectivity?

Can ROM somehow cause problems with USB recognising of my SGS4 I9505 ?

Shall i try this damaged SGS4 with other ROMs flashing with custom recovery and SD card, or it can only be hardware problem, so no need to try other ROMS ?

My question is simple and i need simple answer (like yes or no). I won't explain how many threads i've checked- simply i'll tell what i've tried.
1. Dozens of cables
2. Few different laptops with different OS
3. A lot USB ports
4. Cleaning phone USB port
5. Replacing with another 2 USB boards from other SGS4
6. Hard phone cache and factory reset

Phone can't be recognized in all modes. Last time it was connecting properly was when i flashed last ROM with Odin. It is STOCK rom. - I9505XXUHOB7_I9505YBTHOB7_DBT-Stock ROM Galaxy s4 and it has received several updates OTA from Samsung.
I have 2 more SGS4 which connects and works fine with all cables. They have never been flashed or rooted.
Shall i try this damaged SGS4 with other ROMs flashing with custom recovery and SD card, or it can only be hardware problem, so no need to try other ROMS ?

THANKS a lot in advance !!!

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Internet connectivity issues

Does anyone have a problem with their mobile data sometimes not working? For example sometimes when I launch Google maps and go to search it will say "cannot connect to Google maps, try again later." I then have to close and reopen the app a few times before it connects. This also happens to my reddit app where I have to refresh a few times before it detects I have a connection.

I'm currently in the US on t-mobile. I tested and have received this problem with stamina mode on and off.

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moto g 3rd gen (osprey) no usb connectivity, adb disable causes restart

moto g 3rd gen osprey on cm12.1 2005-11-17

while in a hotel i tried to gain usb support for a television and installed "SD card as USB drive -root-" from https://play.google.com/store/apps/d...tcher&hl=en_GB i didn't pay much attention (distracted by kids) and just tried different options in the widget.

none of the options worked, and since returning to my laptop i can not connect via usb. phone charges but laptop doesn't respond at all. if i go to developer options and attempt to disable adb debugging the phone immediately restarts with adb still enabled. if i disable developer mode phone restarts with developer disabled.

i don't really understand what the app does or what it has done to my phone so any help greatly appreciated!

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G3 D855 No cellular connectivity since upgrade

Hi, my eBay UK purchased reconditioned D855 did an LG software update last night for "Google optimisations" and it installed, I believe, the v20i-aug-26-2015 update.
My phone says it's now running V20n-TUR-XX.

Hardware info
Model: LG-D855TR
Android version: 5.0
Baseband: MPSS.DI.2.0.1.c1.13.2-00002-M8974AAAAANPZM-1
Kernel 3.4.0
Build number LRX21R.A1445947622
Software version V20n-TUR-XX

Network: Three

Everything worked perfectly before the LG update, now it can't see to any cellular data network (I have the signal strength meter showing but no data icons at all) and it was working perfectly before the update.

It works fine on wifi.

I've factory reset and checked everything I could - it's still not seeing the cellular data network. I've manually selected three and let it do it automatically but still no joy. Data is enabled.

LG can't find the IMEI on their system which means it's a foreign or international version I guess and, despite the fact I'm 99.9% sure their update has screwed my phone, they won't take it back to fix it.

What are my options do you think, re-flashing? If I have to then I'd rather go to a stock LG rom or, if possible, a vanilla Android ROM. What do you think, and what flash options do you think I should go for if I have to flash? Fairly n00b when it comes to doing that.

Thanks for any help you can offer!

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