Changing DNS settings of data network (3G)

Hello,
Since Imgur.com is blocked in my country I'm trying to change the DNS settings of the data network (3G) and I've tried lots of apps already, but none of them worked.

1) Maybe a silly question but why is it so difficult to change the data network's DNS settings ? Aren't the DNS IP's written in some file ?
2) Is it possible to change the DNS to Google DNS without using an app and / or VPN ?
3) Which app would do the trick ? Any recommendations for the HTC One Max ?

I'm on Android 5.0.2 (NuSense6).
Thanks in advance.

[REQ] Dump imgdata partition for changing bootlogo

I need a dump image of the imgdata partition. Imgdata partition contains the imges of the bootloader like the boot logo and the images you see in fastboot mode.

I made a successfull boot logo change and bootloader skining thread for the nexus 5 (hammerhead) and now I want to give support for nexus 5x (bullhead) too as it has imgdata partition just like the previous nexus 5.

Thanks in advance.

No SIM card, no camera and display issues after changing ROM.

Hello!
A few days ago I decided to root my M8 and change ROM to Google Play Edition. Something went wrong during installation and now my phone doesn't recognize a SIM card, camera doesn't work and display is glitching. So I wanted to use a backup file I created earlier, but it was corrupted...
I've already installed 4 different ROMs: InsertCoin, Stock GPE 5.1, Cyanogen CM12.1 and now I've returned to Stock M8.
The problem occurred on every ROM.
I'm attaching a few links to show how it looks like (sorry for incomplete urls):

No SIM Card: i60.tinypic[dot]com/2dab0up[dot]jpg

Camera App: i59.tinypic[dot]com/2ir5iky[dot]png

Flashing and colorful dots on the screen: www[dot]youtube[dot]com/watch?v=4u7hRfvUjTw

However the display works fine when I turn on Airplane mode.

HBOOT SCREEN:

Code:

---

*** Software status: Official ***
*** UNLOCKED ***
M8_UL PVT SHIP S-OFF
CID-11111111
HBOOT-3.19.0.0000
RADIO-1.25.214500021.06G
openDSP-v48.2.2-00564-M8974_F0.1211
OS-4.16.401.10
eMMC-boot 2048MB
Jan 15 2015, 22:51:08.0

---

fastboot getvar all:

Code:

---

version: 0.5
version-bootloader: 3.19.0.0000
version-baseband: 1.25.214500021.06G
version-cpld: None
version-microp: None
version-main: 4.16.401.10
version-misc: PVT SHIP S-OFF
meid: 00000000000000
product: m8_ul
platform: hTCBmsm8974
modelid: 0P6B10000
cidnum: 11111111
battery-status: good
battery-voltage: 0mV
partition-layout: Generic
security: off
build-mode: SHIP
boot-mode: FASTBOOT
commitno-bootloader: 3aa067db
hbootpreupdate: 11
gencheckpt: 0

---

Any help would be appreciated.

PS. I have already tried to flash RADIO separately.