Develop Bugs

[Q] Cant update my LG Optimus G Pro to Kit Kat

My phone has Android Jelly Bean installed on my LG Optimus G Pro. I want to upgrade it to Kit Kat ( which is just officially released) but I am unable to find Update Software app on my mobile. I also checked into About Phone -> Software Information but its missing there as well. I am unable to figure out the reason. Is it because my device is rooted and had Custom ROM installed on it? How can I find it out if it has custom ROM installed on it?
Desperately waiting for the help .... Thanks.
P.S. I am attaching the screenshot for the record.
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LG Optimus G F 180 L (Need help with rolling back to OS)

Hi,
I was trying to upgrade my phone to the latest OS Android KitKat, it all seemed good but when i started using my phone it got stuck for a while and restarted. It kept on doing this after the upgrade to the latest firmware that I installled using the IMEI. After that I tried to download Korean Android 4.1.2. I have installed it but now the phone turns on and stucks at screen that says
"LTE The ultumate"
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)
I will really appreciate if any one of you can please help me how can I be able to restore the actual korean firmware Android 4.1.2 on this mobile.
Really thankful to you in advance.

Lg g4 F500 11d rooted system TOT

I always wanted to do a TOT, and always no cell phones, friends gave me a old phone yesterday, just to do you a TOT.
【1】 Based on the han edition LG g4 f500l 11 d.
【2】Lean part of the junk.
【3】The system is the root.
【4】The system optimization (including signal, network, battery, memory, etc.)
【Flash method】
Please refer to the tot flash method
Thanks to our Chinese friends "过往(pingdingshan )" great support!
【Address 】
https://mega.nz/#!U1p3mJxI!hxTEy2boo27jtwcJixiEZjPIQCz-3cYSHaYveGQSRZg
Donat:
Donation]
Please give me one cups of coffee.
Papal addressaypal.me/zhangandy
My Facebook address:https://www.facebook.com/profile.php?id=100011111799350
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Oh
Thanks, It's very useful. Great

Unrooting Redmi Note 8 Pro (Help Requires)

I need an opinion from anybody who has faced the same situation. I had rooted my phone last year by following a youtube video the guy installed TWRP and Magisk from their..
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It's the current version and the below update is available
Now im just confused that if i update it directly is there any chance of brick? One more thing i think my phone is locked on it's own feels like im trapped can anyone help please i want to uninstall the custom recovery and update my phone because now it feels like it's half rooted and facing bugs..

Developer example of LG G8s cannot update

Hello everyone. First of all Im not an expert in mobile software. I recently bought a used LG G8s. The problem is that it is a probably developer version of this phone. There is no SN and the back plate says “not for sale”. The problem is that I cannot update to android 11 or even 10. I've got stock android 9 with security packages from December 2019. I downloaded official ROM from https://lg-firmwares.com/pl/lg-lmg810eaw-firmwares/ and tried to install it by LG UP and LG Bridge, but it not worked. The both of apps detected Phone correctly, but after checking an update the error popped up.
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Is there any chance to update the phone with Original Rom?