Develop Bugs

downgrade lolipop to kitkat

hey guys i want to downgrade from lolipop to kitkat but i don't know which kdz i should download. i have the 32 gb.
here is my software information
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thank you

rooted?

LG G Pad 8.3 update Lollipop?

hi all Friends
Is the model update Lollipop is coming
{
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"lightbox_full_screen": "Full screen",
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"lightbox_zoom": "Zoom",
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"lightbox_toggle_sidebar": "Toggle sidebar"
}

950mb update not installing on lg g4 H810

Hey folks . i recently got 950mb update . i downloaded it and selected click here to install. But after reboot nothing happened any help please .
{
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
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}

install Rom...flumics 5.0 in my lg g3 d855 lollypop indian...

i install in lg g3 d855 indian lollypop.....custom rom
and not like it and again install stock....but when i restart my mobile error show.....what is the error....
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

My LG G7 has IMEI but does not recognize SIM

{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
It was like this after I updated the rom G710NO30d_00_OPEN_KR_OP_0429
Can someone tell me the cause and the solution, please?
And thanks everyone!